fixed a bug where the SHIPDESTROYED Sound was played everytime

added JavaDocs
removed unnecessary lines

.editorconfig

@@ -1,14 +0,0 @@
-root = true
-
-[*]
-charset = utf-8
-end_of_line = lf
-insert_final_newline = true
-trim_trailing_whitespace = true
-
-[*.java]
-indent_style = space
-indent_size = 4
-
-[*.txt]
-indent_style = tab

.gitattributes

@@ -1,59 +0,0 @@
-# Git configuration files
-.gitattributes text
-.gitignore text
-.gitconfig text
-.gitmodules text
-
-# Documentation
-*.md text
-*.txt text
-AUTHORS text
-CHANGELOG text
-CHANGES text
-CONTRIBUTING text
-COPYING text
-INSTALL text
-LICENSE text
-NEWS text
-TODO text
-
-# Java sources
-*.java          text diff=java
-*.kt            text diff=kotlin
-*.groovy        text diff=java
-*.scala         text diff=java
-*.gradle        text diff=java
-*.gradle.kts    text diff=kotlin
-
-# Normalize text files (Convert crlf => lf)
-*.css           text diff=css
-*.scss          text diff=css
-*.sass          text
-*.df            text
-*.htm           text diff=html
-*.html          text diff=html
-*.js            text
-*.mjs           text
-*.cjs           text
-*.jsp           text
-*.jspf          text
-*.jspx          text
-*.properties    text
-*.tld           text
-*.tag           text
-*.tagx          text
-*.xml           text
-
-# Binary files
-# (binary is a macro for -text -diff)
-*.class         binary
-*.dll           binary
-*.ear           binary
-*.jar           binary
-*.so            binary
-*.war           binary
-*.jks           binary
-
-# Build tool wrappers
-mvnw            text eol=lf
-gradlew         text eol=lf

.gitignore

@@ -1,45 +1,26 @@
-
-.run/
+# Gradle
 .gradle
-build/
-#!gradle/wrapper/gradle-wrapper.jar
-#!**/src/main/**/build/
-#!**/src/test/**/build/
+build
 
-### IntelliJ IDEA ###
-.idea
-.idea/modules.xml
-.idea/jarRepositories.xml
-.idea/compiler.xml
-.idea/libraries/
-*.iws
+# VSC
+bin
+
+# IntelliJ
 *.iml
-*.ipr
-out/
-#!**/src/main/**/out/
-#!**/src/test/**/out/
+.idea
+out
 
-### Eclipse ###
-.apt_generated
+# Eclipse
 .classpath
-.factorypath
 .project
-.settings
-.springBeans
-.sts4-cache
-bin/
-#!**/src/main/**/bin/
-#!**/src/test/**/bin/
 
-### NetBeans ###
-/nbproject/private/
-/nbbuild/
-/dist/
-/nbdist/
-/.nb-gradle/
+# Libraries
+*.so
+*.dylib
+*.dll
+*.jar
+*.class
 
-### VS Code ###
-.vscode/
-
-### Mac OS ###
 .DS_Store
+!Projekte/gradle/wrapper/gradle-wrapper.jar
+

Projekte/.gitattributes

@@ -0,0 +1,3 @@
+*.bat           text eol=crlf
+gradlew         text eol=lf
+

Projekte/.run/BattleshipApp (Mac).run.xml

@@ -0,0 +1,18 @@
+<component name="ProjectRunConfigurationManager">
+    <configuration default="false" name="BattleshipApp (Mac)" type="Application" factoryName="Application"
+                   singleton="false">
+        <option name="MAIN_CLASS_NAME" value="pp.battleship.client.BattleshipApp"/>
+        <module name="Projekte.battleship.client.main"/>
+        <option name="VM_PARAMETERS" value="-XstartOnFirstThread"/>
+        <option name="WORKING_DIRECTORY" value="$MODULE_WORKING_DIR$"/>
+        <extension name="coverage">
+            <pattern>
+                <option name="PATTERN" value="pp.battleship.client.*"/>
+                <option name="ENABLED" value="true"/>
+            </pattern>
+        </extension>
+        <method v="2">
+            <option name="Make" enabled="true"/>
+        </method>
+    </configuration>
+</component>

Projekte/.run/BattleshipApp.run.xml

@@ -0,0 +1,18 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="BattleshipApp" type="Application" factoryName="Application" singleton="false"
+                 nameIsGenerated="true">
+    <option name="MAIN_CLASS_NAME" value="pp.battleship.client.BattleshipApp"/>
+    <module name="Projekte.battleship.client.main"/>
+    <option name="VM_PARAMETERS" value="-Djava.util.logging.config.file=logging.properties"/>
+    <option name="WORKING_DIRECTORY" value="$MODULE_WORKING_DIR$"/>
+    <extension name="coverage">
+      <pattern>
+        <option name="PATTERN" value="pp.battleship.client.*"/>
+        <option name="ENABLED" value="true"/>
+      </pattern>
+    </extension>
+    <method v="2">
+      <option name="Make" enabled="true"/>
+    </method>
+  </configuration>
+</component>

Projekte/.run/BattleshipServer.run.xml

@@ -0,0 +1,17 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="BattleshipServer" type="Application" factoryName="Application"
+                 nameIsGenerated="true">
+    <option name="MAIN_CLASS_NAME" value="pp.battleship.server.BattleshipServer"/>
+    <module name="Projekte.battleship.server.main"/>
+    <option name="WORKING_DIRECTORY" value="$MODULE_WORKING_DIR$"/>
+    <extension name="coverage">
+      <pattern>
+        <option name="PATTERN" value="pp.battleship.server.*"/>
+        <option name="ENABLED" value="true"/>
+      </pattern>
+    </extension>
+    <method v="2">
+      <option name="Make" enabled="true"/>
+    </method>
+  </configuration>
+</component>

Projekte/.run/Projekte [test].run.xml

@@ -0,0 +1,24 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="Projekte [test]" type="GradleRunConfiguration" factoryName="Gradle">
+    <ExternalSystemSettings>
+      <option name="executionName" />
+      <option name="externalProjectPath" value="$PROJECT_DIR$" />
+      <option name="externalSystemIdString" value="GRADLE" />
+      <option name="scriptParameters" value="--continue" />
+      <option name="taskDescriptions">
+        <list />
+      </option>
+      <option name="taskNames">
+        <list>
+          <option value="test" />
+        </list>
+      </option>
+      <option name="vmOptions" />
+    </ExternalSystemSettings>
+    <ExternalSystemDebugServerProcess>true</ExternalSystemDebugServerProcess>
+    <ExternalSystemReattachDebugProcess>true</ExternalSystemReattachDebugProcess>
+    <DebugAllEnabled>false</DebugAllEnabled>
+    <RunAsTest>false</RunAsTest>
+    <method v="2" />
+  </configuration>
+</component>

Projekte/README.md

@@ -0,0 +1,189 @@
+# Beispielprogramme des Programmierprojekts
+
+Hier ist der Quellcode für das in der Einarbeitungsphase genutzte Spiel
+_Battleships_ zu finden. Die Quellen bestehen aus den folgenden
+Gradle-Unterprojekten:
+
+* _:battleship:server_
+* _:battleship:client_
+* _:battleship:model_
+* _:battleship:converter_
+* _:common_
+* _:jme-common_
+
+_Battleships_ ist ein netzwerkbasiertes Spiel und besteht aus einem Server- und
+einem Clientanteil, die in den Unterprojekten _:battleship:server_ und
+_:battleship:client_ realisiert sind. Beide nutzen das Unterprojekt
+_:battleship:model_, das den gemeinsamen Modellanteil enthält.
+
+Die Unterprojekte _:common_ und _:jme-common_ enthalten Hilfsklassen.
+
+Das Unterprojekt _:battleship:converter_ wird für _Battleships_ selbst nicht
+benötigt, sondern enthält lediglich den Code, um ein im Spiel verwendetes
+3d-Modell eines Schlachtschiffs in eine _J3O_-Datei umzuwandeln, die von jME
+einfacher geladen werden kann.
+
+## 1 Vorbereitung
+
+Für das Programmierprojekt empfehlen wir die Verwendung von Java 20. Unter Linux
+sollte [_Eclipse Temurin_](https://adoptium.net/temurin/releases/?version=20)
+als JDK verwendet werden, andere JDKs können unter Linux Probleme verursachen.
+Auf anderen Betriebssystemen empfehlen wir aber ebenfalls Temurin. Im Folgenden
+ist beschrieben, wie Sie Temurin installieren und die Umgebungsvariable
+**JAVA_HOME** richtig setzen, damit Sie Gradle (siehe unten) verwenden können.
+
+### 1.1 Installation von Temurin
+
+Laden Sie [_Eclipse Temurin_](https://adoptium.net/temurin/releases/?version=20)
+entsprechend Ihrem Betriebssystem und Ihrer Prozessorarchitektur herunter und
+entpacken Sie das Archiv in einem Verzeichnis Ihrer Wahl auf Ihrem Rechner.
+
+### 1.2 Setzen von JAVA_HOME
+
+Zur Verwendung mit Gradle muss die Umgebungsvariable **JAVA_HOME** richtig
+gesetzt werden. Folgen Sie dazu den nachfolgenden Anweisungen entsprechend Ihrem
+Betriebssystem:
+
+* **Windows:**
+
+  Öffnen Sie ihre Powershell (Core) bzw. ihr Windows Terminal mit Powershell
+  (Core). Überprüfen Sie, ob die Umgebungsvariable korrekt gesetzt ist:  
+  `Get-ChildItem -Path Env:JAVA_HOME`  
+  Falls kein oder ein falscher Pfad gesetzt ist, setzen Sie diesen mit dem
+  folgenden Kommando (in einer Zeile):  
+  `[System.Environment]::SetEnvironmentVariable('JAVA_HOME','<Pfad zum SDK>',[System.EnvironmentVariableTarget]::User)`
+
+  Alternativ können Sie die GUI verwenden. Unter Windows 10 klicken Sie die
+  Windows-Taste und dann das Zahnrad um die Einstellungen zu öffnen. Dort wählen
+  Sie "System", dann "Info" (links unten) und nun
+  "Erweiterte Systemeinstellungen" (rechts) um den Dialog "Systemeigenschaften"
+  zu starten. Im Reiter "Erweitert" klicken Sie
+  "Umgebungsvariablen..." und klicken dann unter "Benutzervariablen" den Knopf
+  "Neu..." um JAVA_HOME anzulegen oder "Bearbeiten" um ihn zu ändern. Geben Sie
+  als Name `JAVA_HOME` und als Wert den Pfad ein. Schließen Sie mit "OK".
+
+  > **(!) Beachten Sie, dass Sie die jeweilige Applikation neu starten müssen**,
+  > um von der gesetzten Umgebungsvariablen Notiz zu nehmen.
+  > Dies betrifft auch die Shell, die Sie gerade verwenden.
+
+* **UNIX (Linux/MacOS):**
+
+  Öffnen oder erstellen Sie die Datei `~/.profile` (wenn Sie die Bash verwenden;
+  bei anderen Shells sind es andere Dateien) und ergänzen Sie am Ende der Datei
+  die Zeile:
+
+  `export JAVA_HOME="<Pfad zum entpackten Archiv>"`
+
+  Ersetzen Sie dabei `<Pfad zum entpackten Archiv>` mit dem entsprechenden Pfad.
+  Zum Beispiel:
+
+  `export JAVA_HOME="/home/user/jdk-20.0.2"`
+
+  Fügen Sie dann die folgende Zeile hinzu:
+
+  `export PATH="$JAVA_HOME/bin:$PATH"`
+
+## 2 Programmstart
+
+Grundsätzlich kann man das gesamte Projekt einfach in IntelliJ öffnen. Details
+dazu sind im Aufgabenblatt zur Einarbeitungsaufgabe zu finden. Im Folgenden ist
+beschrieben, wie die _Batttleships_ unmittelbar von der Kommandozeile gestartet
+werden können.
+
+Um _Battleships_ spielen zu können, muss man zuerst das Server-Programm auf
+einem Rechner und dann zweimal das Client-Programm auf beliebigen Rechnern
+starten, die TCP/IP-Verbindungen zum Server erlauben. Natürlich ist es auch
+möglich, alle drei Programme auf demselben Rechner zu starten.
+
+Es empfiehlt sich der Start von der Kommandozeile. Will man alle drei Programme
+auf demselben Rechner starten, sollte man dazu drei Shell-Instanzen öffnen und
+in jeder eines der Programme starten. Auf diese Weise können die
+Logging-Ausgaben der drei Programme voneinander unterschieden werden.
+
+Das Server-Programm startet man unmittelbar mit Gradle mit
+
+`./gradlew :battleship:server:run`
+
+Unter Windows kann es je nach Shell (Eingabeaufforderung cmd) erforderlich sein,
+`/` jeweils durch `\ ` zu ersetzen.
+
+Im Verzeichnis `battleship/server` befindet sich die Datei `config.propeties`,
+worüber sich der Server konfigurieren lässt. Mit der Zeile `port=1234` lässt
+sich der verwendete Server-Port (hier 1234) einstellen. Außerdem befindet sich
+dort die Datei `logging.properties`, womit das Logging des Servers konfiguriert
+wird.
+
+Das Client-Programm startet man unmittelbar mit Gradle mit
+
+`./gradlew :battleship:client:run`
+
+Die Datei `logging.properties` im Verzeichnis `battleship/client` konfiguriert
+das Logging des Clients.
+
+Alternativ kann man auch die Start-Skripte
+
+* `./battleship/server/build/install/battleship-server/bin/battleship-server`
+* `./battleship/client/build/install/battleship/bin/battleship`
+
+direkt in der Kommandozeile starten. Allerdings müssen sie zuvor mittels
+
+`./gradlew installDist`
+
+erzeugt worden sein. Beachten Sie aber, dass nur im **aktuellen
+Arbeitsverzeichnis** nach den Dateien `config.properties` und
+`logging.properties` gesucht wird und diese geladen werden. Das heißt, dass die
+vordefinierten Dateien in den Verzeichnissen `battleship/server` und
+`battleship/client` nur dann gelesen werden, wenn Sie diese Verzeichnisse als
+aktuelle Arbeitsverzeichnisse nutzen. Wie üblich müssen Sie dazu in der
+Kommandozeile
+
+`cd battleship/server`
+
+bzw.
+
+`cd battleship/client`
+
+eingeben.
+
+## 3 Hinweise zu _Battleships_
+
+Der _Battleships_-Client hat ein Menü, in das man immer mit der
+Esc-Taste kommt. Aus dem Menü heraus lässt sich das Programm auch schließen.
+Beachte, dass sich beim Laden und Speichern eines Spiels kein Dateidialog
+öffnet. Vielmehr muss man den Dateipfad in das Dialogfeld eingeben. Da
+JSON-Dateien geschrieben werden, empfiehlt sich das Datei-Suffix _.json_.
+
+## 4 Allgemeine Gradle-Tasks:
+
+- `./gradlew clean`
+
+  Entfernt alle `build`-Verzeichnisse und alle erzeugten Dateien.
+
+- `./gradlew classes`
+
+  Übersetzt den Quellcode und legt unter build den Bytecode sowie
+  Ressourcen ab.
+
+- `./gradlew javadoc`
+
+  Erzeugt die Dokumentation aus den JavaDoc-Kommentaren im Verzeichnis
+  `build/docs/javadoc` des jeweiligen Unterprojekts.
+
+- `./gradlew test`
+
+  Führt die JUnit-Tests durch. Ergebnisse sind im Verzeichnis
+  `build/reports/tests` des jeweiligen Unterprojekts zu finden.
+
+- `./gradlew build`
+
+  Führt die JUnit-Tests durch und erstellt in `build/distributions`
+  gepackte Distributionsdateien
+
+- `./gradlew installDist`
+
+  Erstellt unter `battleship/client/build/install` und
+  `battleship/server/build/install` Verzeichnisse, die jeweils eine ausführbare
+  Distribution samt Start-Skripten enthält (siehe oben).
+
+---
+Juli 2024

Projekte/battleship/client/build.gradle

@@ -0,0 +1,21 @@
+plugins {
+    id 'buildlogic.jme-application-conventions'
+}
+
+description = 'Battleship Client'
+
+dependencies {
+    implementation project(":jme-common")
+    implementation project(":battleship:model")
+
+    implementation libs.jme3.desktop
+    runtimeOnly libs.jme3.awt.dialogs
+    runtimeOnly libs.jme3.plugins
+    runtimeOnly libs.jme3.jogg
+    runtimeOnly libs.jme3.testdata
+}
+
+application {
+    mainClass = 'pp.battleship.client.BattleshipApp'
+    applicationName = 'battleship'
+}

Projekte/battleship/client/client.properties

@@ -0,0 +1,73 @@
+########################################
+## Programming project code
+## UniBw M, 2022, 2023, 2024
+## www.unibw.de/inf2
+## (c) Mark Minas (mark.minas@unibw.de)
+########################################
+#
+# Battleship client configuration
+#
+# Specifies the map used by the opponent in single mode.
+# Single mode is activated if this property is set.
+map.opponent=maps/map2.json
+#
+# Specifies the map used by the player in single mode.
+# The player must define their own map if this property is not set.
+map.own=maps/map1.json
+#
+# Coordinates of the shots fired by the RobotClient in the order listed.
+# Example:
+#   2, 0,\
+#   2, 1,\
+#   2, 2,\
+#   2, 3
+#  defines four shots, namely at the coordinates
+#  (x=2, y=0), (x=2, y=1), (x=2, y=2), and (x=2, y=3)
+robot.targets=2, 0,\
+              2, 1,\
+              2, 2,\
+              2, 3
+#
+# Delay in milliseconds between each shot fired by the RobotClient.
+robot.delay=500
+#
+# The dimensions of the game map used in single mode.
+# 'map.width' defines the number of columns, and 'map.height' defines the number of rows.
+map.width=10
+map.height=10
+#
+# The number of ships of each length available in single mode.
+# The value is a comma-separated list where each element corresponds to the number of ships
+# with a specific length. For example:
+# ship.nums=4, 3, 2, 1
+# This configuration means:
+#   - 4 ships of length 1
+#   - 3 ships of length 2
+#   - 2 ships of length 3
+#   - 1 ship of length 4
+ship.nums=4, 3, 2, 1
+#
+# Screen settings
+#
+# Color of the text displayed at the top of the overlay.
+# The format is (red, green, blue, alpha) where each value ranges from 0 to 1.
+overlay.top.color=1, 1, 1, 1
+#
+# Application settings configuration
+# Determines whether the settings window is shown at startup.
+settings.show=false
+#
+# Specifies the width of the application window in pixels.
+settings.resolution.width=1200
+#
+# Specifies the height of the application window in pixels.
+settings.resolution.height=800
+#
+# Determines whether the application runs in full-screen mode.
+settings.full-screen=false
+#
+# Enables or disables gamma correction to improve color accuracy.
+settings.use-gamma-correction=true
+#
+# Indicates whether the statistics window is displayed during gameplay.
+statistics.show=false

Projekte/battleship/client/logging.properties

@@ -0,0 +1,8 @@
+handlers=java.util.logging.ConsoleHandler
+.level=INFO
+pp.level=FINE
+com.jme3.network.level=INFO
+;com.jme3.util.TangentBinormalGenerator.level=SEVERE
+java.util.logging.ConsoleHandler.level=FINER
+java.util.logging.ConsoleHandler.formatter=java.util.logging.SimpleFormatter
+;java.util.logging.SimpleFormatter.format=[%4$s %2$s] %5$s%n

Projekte/battleship/client/maps/map1.json

@@ -0,0 +1,66 @@
+{
+  "width": 10,
+  "height": 10,
+  "ships": [
+    {
+      "length": 4,
+      "x": 2,
+      "y": 8,
+      "rot": "RIGHT"
+    },
+    {
+      "length": 3,
+      "x": 2,
+      "y": 5,
+      "rot": "DOWN"
+    },
+    {
+      "length": 3,
+      "x": 5,
+      "y": 6,
+      "rot": "RIGHT"
+    },
+    {
+      "length": 2,
+      "x": 4,
+      "y": 4,
+      "rot": "RIGHT"
+    },
+    {
+      "length": 2,
+      "x": 7,
+      "y": 4,
+      "rot": "RIGHT"
+    },
+    {
+      "length": 2,
+      "x": 4,
+      "y": 2,
+      "rot": "DOWN"
+    },
+    {
+      "length": 1,
+      "x": 6,
+      "y": 2,
+      "rot": "RIGHT"
+    },
+    {
+      "length": 1,
+      "x": 8,
+      "y": 2,
+      "rot": "RIGHT"
+    },
+    {
+      "length": 1,
+      "x": 6,
+      "y": 0,
+      "rot": "RIGHT"
+    },
+    {
+      "length": 1,
+      "x": 8,
+      "y": 0,
+      "rot": "RIGHT"
+    }
+  ]
+}

Projekte/battleship/client/maps/map2.json

@@ -0,0 +1,66 @@
+{
+  "width": 10,
+  "height": 10,
+  "ships": [
+    {
+      "length": 4,
+      "x": 0,
+      "y": 5,
+      "rot": "DOWN"
+    },
+    {
+      "length": 3,
+      "x": 0,
+      "y": 9,
+      "rot": "DOWN"
+    },
+    {
+      "length": 3,
+      "x": 2,
+      "y": 6,
+      "rot": "RIGHT"
+    },
+    {
+      "length": 2,
+      "x": 4,
+      "y": 8,
+      "rot": "RIGHT"
+    },
+    {
+      "length": 2,
+      "x": 2,
+      "y": 4,
+      "rot": "DOWN"
+    },
+    {
+      "length": 2,
+      "x": 2,
+      "y": 1,
+      "rot": "DOWN"
+    },
+    {
+      "length": 1,
+      "x": 6,
+      "y": 2,
+      "rot": "RIGHT"
+    },
+    {
+      "length": 1,
+      "x": 8,
+      "y": 2,
+      "rot": "RIGHT"
+    },
+    {
+      "length": 1,
+      "x": 6,
+      "y": 0,
+      "rot": "RIGHT"
+    },
+    {
+      "length": 1,
+      "x": 8,
+      "y": 0,
+      "rot": "RIGHT"
+    }
+  ]
+}

Projekte/battleship/client/src/main/java/pp/battleship/client/BackgroundMusic.java

@@ -0,0 +1,238 @@
+package pp.battleship.client;
+
+import com.jme3.app.Application;
+import com.jme3.audio.AudioData.DataType;
+import com.jme3.audio.AudioNode;
+import com.jme3.audio.AudioSource.Status;
+import pp.battleship.notification.Music;
+import pp.battleship.notification.MusicEvent;
+import pp.battleship.notification.GameEventListener;
+
+import java.lang.System.Logger;
+import java.lang.System.Logger.Level;
+import java.util.prefs.Preferences;
+
+/**
+ * Class to play Background music in game
+ */
+public class BackgroundMusic implements GameEventListener {
+    private static final String VOLUME_PREF = "volume";
+    private static final String MUSIC_ENABLED_PREF = "musicEnabled";
+    private final Preferences pref = Preferences.userNodeForPackage(BackgroundMusic.class);
+    static final Logger LOGGER = System.getLogger(BackgroundMusic.class.getName());
+
+    private static final String MENU_MUSIC = "Sound/Music/menu/cinematictrailerelite.ogg";
+    private static final String GAME_MUSIC = "Sound/Music/game/Aluminum.ogg";
+    private static final String VICTORY_MUSIC = "Sound/Music/victory/victorymarchofvalor.ogg";
+    private static final String LOSE_MUSIC = "Sound/Music/lose/TouchofDream.ogg";
+    private final AudioNode menuMusic;
+    private final AudioNode gameMusic;
+    private final AudioNode victoryMusic;
+    private final AudioNode loseMusic;
+    private String lastPlayedMusic;
+    private boolean musicEnabled;
+    private float volume;
+    private Application app;
+
+    /**
+     * Constructor for BackgroundMusic class
+     *
+     * @param app The main Application
+     */
+    public BackgroundMusic(Application app) {
+        this.volume = pref.getFloat(VOLUME_PREF, 1.0f);
+        this.musicEnabled = pref.getBoolean(MUSIC_ENABLED_PREF, true);
+        this.app = app;
+
+        menuMusic = createMusicNode(MENU_MUSIC);
+        gameMusic = createMusicNode(GAME_MUSIC);
+        victoryMusic = createMusicNode(VICTORY_MUSIC);
+        loseMusic = createMusicNode(LOSE_MUSIC);
+        stop(gameMusic);
+        stop(victoryMusic);
+        stop(loseMusic);
+        lastPlayedMusic = menuMusic.getName();
+
+        if (musicEnabled) {
+            play(menuMusic);
+        }
+    }
+
+    /**
+     * Creates an audio node for the music
+     *
+     * @param musicFilePath the file path to the music
+     * @return the created audio node
+     */
+
+    private AudioNode createMusicNode(String musicFilePath) {
+        AudioNode audioNode = new AudioNode(app.getAssetManager(), musicFilePath, DataType.Stream);
+        audioNode.setVolume(volume);
+        audioNode.setPositional(false);
+        audioNode.setLooping(true);
+        audioNode.setName(musicFilePath);
+        return audioNode;
+    }
+
+    /**
+     * Starts the music
+     *
+     * @param audioNode the audio node to be played
+     */
+    public void play(AudioNode audioNode) {
+        if (musicEnabled && (audioNode.getStatus() == Status.Stopped || audioNode.getStatus() == Status.Paused)) {
+            audioNode.play();
+            lastPlayedMusic = audioNode.getName();
+        }
+    }
+
+    /**
+     * Pauses the music
+     *
+     * @param audioNode the audio node to be paused
+     */
+    public void pause(AudioNode audioNode) {
+        if (audioNode.getStatus() == Status.Playing) {
+            audioNode.pause();
+        }
+    }
+
+    /**
+     * Stops the music
+     *
+     * @param audioNode the audio node to be stopped
+     */
+    public void stop(AudioNode audioNode) {
+        if (audioNode.getStatus() == Status.Playing) {
+            audioNode.stop();
+        }
+    }
+
+    /**
+     * Controls which music should be played
+     */
+    public void toggleMusic() {
+        this.musicEnabled = !this.musicEnabled;
+        if (musicEnabled) {
+            switch (lastPlayedMusic) {
+                case MENU_MUSIC:
+                    play(menuMusic);
+                    break;
+                case GAME_MUSIC:
+                    play(gameMusic);
+                    break;
+                case VICTORY_MUSIC:
+                    play(victoryMusic);
+                    break;
+                case LOSE_MUSIC:
+                    play(loseMusic);
+                    break;
+            }
+        }
+        else {
+            pause(menuMusic);
+            pause(gameMusic);
+            pause(victoryMusic);
+            pause(loseMusic);
+        }
+
+        pref.putBoolean(MUSIC_ENABLED_PREF, musicEnabled);
+    }
+
+    /**
+     * Changes the music to the specified music if it isn't already playing
+     *
+     * @param music the music to play
+     */
+    public void changeMusic(Music music) {
+        if (music == Music.MENU_THEME && !lastPlayedMusic.equals(MENU_MUSIC)) {
+            LOGGER.log(Level.DEBUG, "Received Music change Event {0}", music.toString());
+            stop(gameMusic);
+            stop(victoryMusic);
+            stop(loseMusic);
+            play(menuMusic);
+            lastPlayedMusic = menuMusic.getName();
+        }
+        else if (music == Music.GAME_THEME && !lastPlayedMusic.equals(GAME_MUSIC)) {
+            LOGGER.log(Level.DEBUG, "Received Music change Event {0}", music.toString());
+            stop(menuMusic);
+            stop(loseMusic);
+            stop(victoryMusic);
+            play(gameMusic);
+            lastPlayedMusic = gameMusic.getName();
+        }
+        else if (music == Music.VICTORY_THEME && !lastPlayedMusic.equals(VICTORY_MUSIC)) {
+            LOGGER.log(Level.DEBUG, "Received Music change Event {0}", music.toString());
+            stop(menuMusic);
+            stop(gameMusic);
+            stop(loseMusic);
+            play(victoryMusic);
+            lastPlayedMusic = victoryMusic.getName();
+        }
+        else if (music == Music.LOSE_THEME && !lastPlayedMusic.equals(LOSE_MUSIC)) {
+            LOGGER.log(Level.DEBUG, "Received Music change Event {0}", music.toString());
+            stop(menuMusic);
+            stop(gameMusic);
+            stop(victoryMusic);
+            play(loseMusic);
+            lastPlayedMusic = loseMusic.getName();
+        }
+    }
+
+    /**
+     * Receives the different MusicEvents
+     *
+     * @param music the received Event
+     */
+    @Override
+    public void receivedEvent(MusicEvent music) {
+        LOGGER.log(Level.DEBUG, "Received Music change Event {0}", music.toString());
+        switch (music.music()) {
+            case MENU_THEME:
+                changeMusic(Music.MENU_THEME);
+                break;
+            case GAME_THEME:
+                changeMusic(Music.GAME_THEME);
+                break;
+            case VICTORY_THEME:
+                changeMusic(Music.VICTORY_THEME);
+                break;
+            case LOSE_THEME:
+                changeMusic(Music.LOSE_THEME);
+                break;
+        }
+    }
+
+    /**
+     * Set the volume for the music
+     *
+     * @param volume float to transfer the new volume
+     */
+    public void setVolume(float volume) {
+        this.volume = volume;
+        menuMusic.setVolume(volume);
+        gameMusic.setVolume(volume);
+        victoryMusic.setVolume(volume);
+        loseMusic.setVolume(volume);
+
+        pref.putFloat(VOLUME_PREF, volume);
+    }
+
+    /**
+     * Returns the volume
+     *
+     * @return the current volume as a float
+     */
+    public float getVolume() {
+        return volume;
+    }
+
+    /**
+     * Returns if music should be played or not
+     *
+     * @return boolean value in music should be played
+     */
+    public boolean isMusicEnabled() {
+        return musicEnabled;
+    }
+}

Projekte/battleship/client/src/main/java/pp/battleship/client/BattleshipApp.java

@@ -0,0 +1,433 @@
+package pp.battleship.client;
+
+import com.jme3.app.DebugKeysAppState;
+import com.jme3.app.SimpleApplication;
+import com.jme3.app.StatsAppState;
+import com.jme3.font.BitmapFont;
+import com.jme3.font.BitmapText;
+import com.jme3.input.KeyInput;
+import com.jme3.input.MouseInput;
+import com.jme3.input.controls.ActionListener;
+import com.jme3.input.controls.KeyTrigger;
+import com.jme3.input.controls.MouseButtonTrigger;
+import com.jme3.system.AppSettings;
+import com.simsilica.lemur.GuiGlobals;
+import com.simsilica.lemur.style.BaseStyles;
+import pp.battleship.client.gui.BattleAppState;
+import pp.battleship.client.gui.EditorAppState;
+import pp.battleship.client.gui.SeaAppState;
+import pp.battleship.game.client.BattleshipClient;
+import pp.battleship.game.client.ClientGameLogic;
+import pp.battleship.game.client.ServerConnection;
+import pp.battleship.game.singlemode.BattleshipClientConfig;
+import pp.battleship.game.singlemode.ServerConnectionMockup;
+import pp.battleship.notification.ClientStateEvent;
+import pp.battleship.notification.GameEventListener;
+import pp.battleship.notification.InfoTextEvent;
+import pp.dialog.DialogBuilder;
+import pp.dialog.DialogManager;
+import pp.graphics.Draw;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.lang.System.Logger;
+import java.lang.System.Logger.Level;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.logging.LogManager;
+
+import static pp.battleship.Resources.lookup;
+
+/**
+ * The main class for the Battleship client application.
+ * It manages the initialization, input setup, GUI setup, and game states for the client.
+ */
+public class BattleshipApp extends SimpleApplication implements BattleshipClient, GameEventListener {
+
+    /**
+     * Logger for logging messages within the application.
+     */
+    private static final Logger LOGGER = System.getLogger(BattleshipApp.class.getName());
+
+    /**
+     * Path to the styles script for GUI elements.
+     */
+    private static final String STYLES_SCRIPT = "Interface/Lemur/pp-styles.groovy"; //NON-NLS
+
+    /**
+     * Path to the font resource used in the GUI.
+     */
+    private static final String FONT = "Interface/Fonts/Default.fnt"; //NON-NLS
+
+    /**
+     * Path to the client configuration file, if one exists.
+     */
+    private static final File CONFIG_FILE = new File("client.properties");
+
+    /**
+     * Input mapping name for mouse clicks.
+     */
+    public static final String CLICK = "CLICK";
+
+    /**
+     * Input mapping name for the Escape key.
+     */
+    private static final String ESC = "ESC";
+
+    /**
+     * Manager for handling dialogs within the application.
+     */
+    private final DialogManager dialogManager = new DialogManager(this);
+
+    /**
+     * The server connection instance, used for communicating with the game server.
+     */
+    private final ServerConnection serverConnection;
+
+    /**
+     * Instance of the {@link Draw} class for rendering graphics.
+     */
+    private Draw draw;
+
+    /**
+     * Text display at the top of the GUI for showing information to the user.
+     */
+    private BitmapText topText;
+
+    /**
+     * Executor service for handling asynchronous tasks within the application.
+     */
+    private ExecutorService executor;
+
+    /**
+     * Handler for managing the client's game logic.
+     */
+    private final ClientGameLogic logic;
+
+    /**
+     * Configuration settings for the Battleship client application.
+     */
+    private final BattleshipAppConfig config;
+
+    /**
+     * Listener for handling actions triggered by the Escape key.
+     */
+    private final ActionListener escapeListener = (name, isPressed, tpf) -> escape(isPressed);
+
+    /**
+     * Object handling the background music
+     */
+    private BackgroundMusic backgroundMusic;
+
+    static {
+        // Configure logging
+        LogManager manager = LogManager.getLogManager();
+        try {
+            manager.readConfiguration(new FileInputStream("logging.properties"));
+            LOGGER.log(Level.INFO, "Successfully read logging properties"); //NON-NLS
+        }
+        catch (IOException e) {
+            LOGGER.log(Level.INFO, e.getMessage());
+        }
+    }
+
+    /**
+     * Starts the Battleship application.
+     *
+     * @param args Command-line arguments for launching the application.
+     */
+    public static void main(String[] args) {
+        new BattleshipApp().start();
+    }
+
+    /**
+     * Constructs a new {@code BattleshipApp} instance.
+     * Initializes the configuration, server connection, and game logic listeners.
+     */
+    private BattleshipApp() {
+        config = new BattleshipAppConfig();
+        config.readFromIfExists(CONFIG_FILE);
+        serverConnection = makeServerConnection();
+        logic = new ClientGameLogic(serverConnection);
+        logic.addListener(this);
+        setShowSettings(config.getShowSettings());
+        setSettings(makeSettings());
+    }
+
+    /**
+     * Creates and configures application settings from the client configuration.
+     *
+     * @return A configured {@link AppSettings} object.
+     */
+    private AppSettings makeSettings() {
+        final AppSettings settings = new AppSettings(true);
+        settings.setTitle(lookup("battleship.name"));
+        settings.setResolution(config.getResolutionWidth(), config.getResolutionHeight());
+        settings.setFullscreen(config.fullScreen());
+        settings.setUseRetinaFrameBuffer(config.useRetinaFrameBuffer());
+        settings.setGammaCorrection(config.useGammaCorrection());
+        return settings;
+    }
+
+    /**
+     * Factory method for creating a server connection based on the current
+     * client configuration.
+     *
+     * @return A {@link ServerConnection} instance, which could be a real or mock server.
+     */
+    private ServerConnection makeServerConnection() {
+        if (config.isSingleMode())
+            return new ServerConnectionMockup(this);
+        return new NetworkSupport(this);
+    }
+
+    /**
+     * Returns the dialog manager responsible for managing in-game dialogs.
+     *
+     * @return The {@link DialogManager} instance.
+     */
+    DialogManager getDialogManager() {
+        return dialogManager;
+    }
+
+    /**
+     * Returns the game logic handler for the client.
+     *
+     * @return The {@link ClientGameLogic} instance.
+     */
+    @Override
+    public ClientGameLogic getGameLogic() {
+        return logic;
+    }
+
+    /**
+     * Returns the current configuration settings for the Battleship client.
+     *
+     * @return The {@link BattleshipClientConfig} instance.
+     */
+    @Override
+    public BattleshipAppConfig getConfig() {
+        return config;
+    }
+
+    /**
+     * Initializes the application.
+     * Sets up input mappings, GUI, game states, and connects to the server.
+     */
+    @Override
+    public void simpleInitApp() {
+        setPauseOnLostFocus(false);
+        draw = new Draw(assetManager);
+        setupInput();
+        setupStates();
+        setupGui();
+        serverConnection.connect();
+        backgroundMusic = new BackgroundMusic(this);
+        logic.addListener(backgroundMusic);
+    }
+
+    /**
+     * Sets up the graphical user interface (GUI) for the application.
+     */
+    private void setupGui() {
+        GuiGlobals.initialize(this);
+        BaseStyles.loadStyleResources(STYLES_SCRIPT);
+        GuiGlobals.getInstance().getStyles().setDefaultStyle("pp"); //NON-NLS
+        final BitmapFont normalFont = assetManager.loadFont(FONT); //NON-NLS
+        topText = new BitmapText(normalFont);
+        final int height = context.getSettings().getHeight();
+        topText.setLocalTranslation(10f, height - 10f, 0f);
+        topText.setColor(config.getTopColor());
+        guiNode.attachChild(topText);
+    }
+
+    /**
+     * Configures input mappings and sets up listeners for user interactions.
+     */
+    private void setupInput() {
+        inputManager.deleteMapping(INPUT_MAPPING_EXIT);
+        inputManager.setCursorVisible(false);
+        inputManager.addMapping(ESC, new KeyTrigger(KeyInput.KEY_ESCAPE));
+        inputManager.addMapping(CLICK, new MouseButtonTrigger(MouseInput.BUTTON_LEFT));
+        inputManager.addListener(escapeListener, ESC);
+    }
+
+    /**
+     * Initializes and attaches the necessary application states for the game.
+     */
+    private void setupStates() {
+        if (config.getShowStatistics()) {
+            final BitmapFont normalFont = assetManager.loadFont(FONT); //NON-NLS
+            final StatsAppState stats = new StatsAppState(guiNode, normalFont);
+            stateManager.attach(stats);
+        }
+        flyCam.setEnabled(false);
+        stateManager.detach(stateManager.getState(StatsAppState.class));
+        stateManager.detach(stateManager.getState(DebugKeysAppState.class));
+
+        attachGameSound();
+        stateManager.attachAll(new EditorAppState(), new BattleAppState(), new SeaAppState());
+    }
+
+    /**
+     * Attaches the game sound state and sets its initial enabled state.
+     */
+    private void attachGameSound() {
+        final GameSound gameSound = new GameSound();
+        logic.addListener(gameSound);
+        gameSound.setEnabled(GameSound.enabledInPreferences());
+        stateManager.attach(gameSound);
+    }
+
+    /**
+     * Updates the application state every frame.
+     * This method is called once per frame during the game loop.
+     *
+     * @param tpf Time per frame in seconds.
+     */
+    @Override
+    public void simpleUpdate(float tpf) {
+        super.simpleUpdate(tpf);
+        dialogManager.update(tpf);
+        logic.update(tpf);
+    }
+
+    /**
+     * Handles the Escape key action to either close the top dialog or show the main menu.
+     *
+     * @param isPressed Indicates whether the Escape key is pressed.
+     */
+    private void escape(boolean isPressed) {
+        if (!isPressed) return;
+        if (dialogManager.showsDialog())
+            dialogManager.escape();
+        else
+            new Menu(this).open();
+    }
+
+    /**
+     * Returns the {@link Draw} instance used for rendering graphical elements in the game.
+     *
+     * @return The {@link Draw} instance.
+     */
+    public Draw getDraw() {
+        return draw;
+    }
+
+    public BackgroundMusic getBackgroundMusic() {
+        return backgroundMusic;
+    }
+
+    /**
+     * Handles a request to close the application.
+     * If the request is initiated by pressing ESC, this parameter is true.
+     *
+     * @param esc If true, the request is due to the ESC key being pressed.
+     */
+    @Override
+    public void requestClose(boolean esc) { /* do nothing */ }
+
+    /**
+     * Closes the application, displaying a confirmation dialog if the client is connected to a server.
+     */
+    public void closeApp() {
+        if (serverConnection.isConnected())
+            confirmDialog(lookup("confirm.leaving"), this::close);
+        else
+            close();
+    }
+
+    /**
+     * Closes the application, disconnecting from the server and stopping the application.
+     */
+    private void close() {
+        serverConnection.disconnect();
+        stop();
+    }
+
+    /**
+     * Updates the informational text displayed in the GUI.
+     *
+     * @param text The information text to display.
+     */
+    void setInfoText(String text) {
+        LOGGER.log(Level.DEBUG, "setInfoText {0}", text); //NON-NLS
+        topText.setText(text);
+    }
+
+    /**
+     * Updates the informational text in the GUI based on the key received in an {@link InfoTextEvent}.
+     *
+     * @param event The {@link InfoTextEvent} containing the key for the text to display.
+     */
+    @Override
+    public void receivedEvent(InfoTextEvent event) {
+        LOGGER.log(Level.DEBUG, "received info text {0}", event.key()); //NON-NLS
+        setInfoText(lookup(event.key()));
+    }
+
+    /**
+     * Handles client state events to update the game states accordingly.
+     *
+     * @param event The {@link ClientStateEvent} representing the state change.
+     */
+    @Override
+    public void receivedEvent(ClientStateEvent event) {
+        stateManager.getState(EditorAppState.class).setEnabled(logic.showEditor());
+        stateManager.getState(BattleAppState.class).setEnabled(logic.showBattle());
+        stateManager.getState(SeaAppState.class).setEnabled(logic.showBattle());
+    }
+
+    /**
+     * Returns the executor service used for handling multithreaded tasks.
+     *
+     * @return The {@link ExecutorService} instance.
+     */
+    public ExecutorService getExecutor() {
+        if (executor == null)
+            executor = Executors.newCachedThreadPool();
+        return executor;
+    }
+
+    /**
+     * Stops the application, shutting down the executor service and halting execution.
+     *
+     * @param waitFor If true, waits for the application to stop before returning.
+     */
+    @Override
+    public void stop(boolean waitFor) {
+        if (executor != null) executor.shutdownNow();
+        super.stop(waitFor);
+    }
+
+    /**
+     * Displays a confirmation dialog with a specified question and action for the "Yes" button.
+     *
+     * @param question  The question to display in the dialog.
+     * @param yesAction The action to perform if "Yes" is selected.
+     */
+    void confirmDialog(String question, Runnable yesAction) {
+        DialogBuilder.simple(dialogManager)
+                     .setTitle(lookup("dialog.question"))
+                     .setText(question)
+                     .setOkButton(lookup("button.yes"), yesAction)
+                     .setNoButton(lookup("button.no"))
+                     .build()
+                     .open();
+    }
+
+    /**
+     * Displays an error dialog with the specified error message.
+     *
+     * @param errorMessage The error message to display in the dialog.
+     */
+    void errorDialog(String errorMessage) {
+        DialogBuilder.simple(dialogManager)
+                     .setTitle(lookup("dialog.error"))
+                     .setText(errorMessage)
+                     .setOkButton(lookup("button.ok"))
+                     .build()
+                     .open();
+    }
+}

Projekte/battleship/client/src/main/java/pp/battleship/client/BattleshipAppConfig.java

@@ -0,0 +1,189 @@
+package pp.battleship.client;
+
+import com.jme3.math.ColorRGBA;
+import pp.battleship.game.singlemode.BattleshipClientConfig;
+
+/**
+ * Provides access to the Battleship application configuration.
+ * Extends {@link BattleshipClientConfig} to include additional properties specific to the client,
+ * particularly those related to screen settings and visual customization.
+ * <p>
+ * <b>Note:</b> Attributes of this class should not be marked as {@code final}
+ * to ensure proper functionality when reading from a properties file.
+ * </p>
+ */
+public class BattleshipAppConfig extends BattleshipClientConfig {
+
+    /**
+     * Converts a string value found in the properties file into an object of the specified type.
+     * Extends the superclass method to support conversion to {@link ColorRGBA}.
+     *
+     * @param value      the string value to be converted
+     * @param targetType the target type into which the value string is converted
+     * @return the converted object of the specified type
+     */
+    @Override
+    protected Object convertToType(String value, Class<?> targetType) {
+        if (targetType == ColorRGBA.class)
+            return makeColorRGBA(value);
+        return super.convertToType(value, targetType);
+    }
+
+    /**
+     * Converts the specified string value to a corresponding {@link ColorRGBA} object.
+     *
+     * @param value the color in the format "red, green, blue, alpha" with all values in the range [0..1]
+     * @return a {@link ColorRGBA} object representing the color
+     * @throws IllegalArgumentException if the input string is not in the expected format
+     */
+    private static ColorRGBA makeColorRGBA(String value) {
+        String[] split = value.split(",", -1);
+        try {
+            if (split.length == 4)
+                return new ColorRGBA(Float.parseFloat(split[0]),
+                                     Float.parseFloat(split[1]),
+                                     Float.parseFloat(split[2]),
+                                     Float.parseFloat(split[3]));
+        }
+        catch (NumberFormatException e) {
+            // deliberately left empty
+        }
+        throw new IllegalArgumentException(value + " should consist of exactly 4 numbers");
+    }
+
+    /**
+     * The width of the game view resolution in pixels.
+     */
+    @Property("settings.resolution.width") //NON-NLS
+    private int resolutionWidth = 1200;
+
+    /**
+     * The height of the game view resolution in pixels.
+     */
+    @Property("settings.resolution.height") //NON-NLS
+    private int resolutionHeight = 800;
+
+    /**
+     * Specifies whether the game should start in full-screen mode.
+     */
+    @Property("settings.full-screen") //NON-NLS
+    private boolean fullScreen = false;
+
+    /**
+     * Specifies whether gamma correction should be enabled.
+     * If enabled, the main framebuffer is configured for sRGB colors,
+     * and sRGB images are linearized.
+     * <p>
+     * Requires a GPU that supports GL_ARB_framebuffer_sRGB; otherwise, this setting will be ignored.
+     * </p>
+     */
+    @Property("settings.use-gamma-correction") //NON-NLS
+    private boolean useGammaCorrection = true;
+
+    /**
+     * Specifies whether full resolution framebuffers should be used on Retina displays.
+     * This setting is ignored on non-Retina platforms.
+     */
+    @Property("settings.use-retina-framebuffer") //NON-NLS
+    private boolean useRetinaFrameBuffer = false;
+
+    /**
+     * Specifies whether the settings window should be shown for configuring the game.
+     */
+    @Property("settings.show") //NON-NLS
+    private boolean showSettings = false;
+
+    /**
+     * Specifies whether the JME statistics window should be shown in the lower left corner of the screen.
+     */
+    @Property("statistics.show") //NON-NLS
+    private boolean showStatistics = false;
+
+    /**
+     * The color of the top text during gameplay, represented as a {@link ColorRGBA} object.
+     */
+    @Property("overlay.top.color") //NON-NLS
+    private ColorRGBA topColor = ColorRGBA.White;
+
+    /**
+     * Creates a default {@code BattleshipAppConfig} with predefined values.
+     */
+    public BattleshipAppConfig() {
+        // Default constructor
+    }
+
+    /**
+     * Returns the width of the game view resolution in pixels.
+     *
+     * @return the width of the game view resolution in pixels
+     */
+    public int getResolutionWidth() {
+        return resolutionWidth;
+    }
+
+    /**
+     * Returns the height of the game view resolution in pixels.
+     *
+     * @return the height of the game view resolution in pixels
+     */
+    public int getResolutionHeight() {
+        return resolutionHeight;
+    }
+
+    /**
+     * Returns whether the game should start in full-screen mode.
+     *
+     * @return {@code true} if the game should start in full-screen mode; {@code false} otherwise
+     */
+    public boolean fullScreen() {
+        return fullScreen;
+    }
+
+    /**
+     * Returns whether gamma correction is enabled.
+     * If enabled, the main framebuffer is configured for sRGB colors,
+     * and sRGB images are linearized.
+     *
+     * @return {@code true} if gamma correction is enabled; {@code false} otherwise
+     */
+    public boolean useGammaCorrection() {
+        return useGammaCorrection;
+    }
+
+    /**
+     * Returns whether full resolution framebuffers should be used on Retina displays.
+     * This setting is ignored on non-Retina platforms.
+     *
+     * @return {@code true} if full resolution framebuffers should be used on Retina displays; {@code false} otherwise
+     */
+    public boolean useRetinaFrameBuffer() {
+        return useRetinaFrameBuffer;
+    }
+
+    /**
+     * Returns whether the settings window should be shown for configuring the game.
+     *
+     * @return {@code true} if the settings window should be shown; {@code false} otherwise
+     */
+    public boolean getShowSettings() {
+        return showSettings;
+    }
+
+    /**
+     * Returns whether the JME statistics window should be shown in the lower left corner of the screen.
+     *
+     * @return {@code true} if the statistics window should be shown; {@code false} otherwise
+     */
+    public boolean getShowStatistics() {
+        return showStatistics;
+    }
+
+    /**
+     * Returns the color of the top text during gameplay as a {@link ColorRGBA} object.
+     *
+     * @return the color of the top text during gameplay
+     */
+    public ColorRGBA getTopColor() {
+        return topColor;
+    }
+}

Projekte/battleship/client/src/main/java/pp/battleship/client/BattleshipAppState.java

@@ -0,0 +1,95 @@
+package pp.battleship.client;
+
+import com.jme3.app.Application;
+import com.jme3.app.state.AbstractAppState;
+import com.jme3.app.state.AppStateManager;
+import pp.battleship.game.client.ClientGameLogic;
+
+/**
+ * Abstract class representing a state in the Battleship game.
+ * Extends the AbstractAppState from jMonkeyEngine to manage state behavior.
+ */
+public abstract class BattleshipAppState extends AbstractAppState {
+    private BattleshipApp app;
+
+    /**
+     * Creates a new BattleshipAppState that is initially disabled.
+     *
+     * @see #setEnabled(boolean)
+     */
+    protected BattleshipAppState() {
+        setEnabled(false);
+    }
+
+    /**
+     * Initializes the state manager and application.
+     *
+     * @param stateManager The state manager
+     * @param application  The application instance
+     */
+    @Override
+    public void initialize(AppStateManager stateManager, Application application) {
+        super.initialize(stateManager, application);
+        this.app = (BattleshipApp) application;
+        if (isEnabled()) enableState();
+    }
+
+    /**
+     * Returns the BattleshipApp instance associated with this BattleshipAppState.
+     *
+     * @return The BattleshipApp instance.
+     */
+    public BattleshipApp getApp() {
+        return app;
+    }
+
+    /**
+     * Returns the client game logic handler.
+     *
+     * @return the client game logic handler
+     */
+    public ClientGameLogic getGameLogic() {
+        return app.getGameLogic();
+    }
+
+    /**
+     * Checks if any dialog is currently displayed.
+     *
+     * @return true if any dialog is currently shown, false otherwise
+     */
+    public boolean showsDialog() {
+        return app.getDialogManager().showsDialog();
+    }
+
+    /**
+     * Sets the enabled state of the BattleshipAppState.
+     * If the new state is the same as the current state, the method returns.
+     *
+     * @param enabled The new enabled state.
+     */
+    @Override
+    public void setEnabled(boolean enabled) {
+        if (isEnabled() == enabled) return;
+        super.setEnabled(enabled);
+        if (app != null) {
+            if (enabled)
+                enableState();
+            else
+                disableState();
+        }
+    }
+
+    /**
+     * This method is called when the state is enabled.
+     * It is meant to be overridden by subclasses to perform
+     * specific actions when the state is enabled.
+     */
+    protected abstract void enableState();
+
+    /**
+     * This method is called when the state is disabled.
+     * It is meant to be overridden by subclasses to perform
+     * specific actions when the state is disabled.
+     */
+    protected abstract void disableState();
+}

Projekte/battleship/client/src/main/java/pp/battleship/client/GameSound.java

@@ -0,0 +1,145 @@
+package pp.battleship.client;
+
+import com.jme3.app.Application;
+import com.jme3.app.state.AbstractAppState;
+import com.jme3.app.state.AppStateManager;
+import com.jme3.asset.AssetLoadException;
+import com.jme3.asset.AssetNotFoundException;
+import com.jme3.audio.AudioData;
+import com.jme3.audio.AudioNode;
+import pp.battleship.notification.GameEventListener;
+import pp.battleship.notification.Sound;
+import pp.battleship.notification.SoundEvent;
+
+import java.lang.System.Logger;
+import java.lang.System.Logger.Level;
+import java.util.prefs.Preferences;
+
+import static pp.util.PreferencesUtils.getPreferences;
+
+/**
+ * An application state that plays sounds.
+ */
+public class GameSound extends AbstractAppState implements GameEventListener {
+    static final Logger LOGGER = System.getLogger(GameSound.class.getName());
+    private static final Preferences PREFERENCES = getPreferences(GameSound.class);
+    private static final String ENABLED_PREF = "enabled"; //NON-NLS
+
+    private AudioNode splashSound;
+    private AudioNode shipDestroyedSound;
+    private AudioNode explosionSound;
+    private AudioNode missileLaunch;
+
+    /**
+     * Checks if sound is enabled in the preferences.
+     *
+     * @return {@code true} if sound is enabled, {@code false} otherwise.
+     */
+    public static boolean enabledInPreferences() {
+        return PREFERENCES.getBoolean(ENABLED_PREF, true);
+    }
+
+    /**
+     * Toggles the game sound on or off.
+     */
+    public void toggleSound() {
+        setEnabled(!isEnabled());
+    }
+
+    /**
+     * Sets the enabled state of this AppState.
+     * Overrides {@link com.jme3.app.state.AbstractAppState#setEnabled(boolean)}
+     *
+     * @param enabled {@code true} to enable the AppState, {@code false} to disable it.
+     */
+    @Override
+    public void setEnabled(boolean enabled) {
+        if (isEnabled() == enabled) return;
+        super.setEnabled(enabled);
+        LOGGER.log(Level.INFO, "Sound enabled: {0}", enabled); //NON-NLS
+        PREFERENCES.putBoolean(ENABLED_PREF, enabled);
+    }
+
+    /**
+     * Initializes the sound effects for the game.
+     * Overrides {@link AbstractAppState#initialize(AppStateManager, Application)}
+     *
+     * @param stateManager The state manager
+     * @param app          The application
+     */
+    @Override
+    public void initialize(AppStateManager stateManager, Application app) {
+        super.initialize(stateManager, app);
+        shipDestroyedSound = loadSound(app, "Sound/Effects/sunken.wav"); //NON-NLS
+        splashSound = loadSound(app, "Sound/Effects/splash.wav"); //NON-NLS
+        explosionSound = loadSound(app, "Sound/Effects/explosion.wav"); //NON-NLS
+        missileLaunch = loadSound(app, "Sound/Effects/missilefiring.wav"); //NON-NLS
+    }
+
+    /**
+     * Loads a sound from the specified file.
+     *
+     * @param app  The application
+     * @param name The name of the sound file.
+     * @return The loaded AudioNode.
+     */
+    private AudioNode loadSound(Application app, String name) {
+        try {
+            final AudioNode sound = new AudioNode(app.getAssetManager(), name, AudioData.DataType.Buffer);
+            sound.setLooping(false);
+            sound.setPositional(false);
+            return sound;
+        }
+        catch (AssetLoadException | AssetNotFoundException ex) {
+            LOGGER.log(Level.ERROR, ex.getMessage(), ex);
+        }
+        return null;
+    }
+
+    /**
+     * Plays the splash sound effect.
+     */
+    public void missileLaunch() {
+        if (isEnabled() && missileLaunch != null)
+            missileLaunch.playInstance();
+    }
+
+    /**
+     * Plays the splash sound effect.
+     */
+    public void splash() {
+        if (isEnabled() && splashSound != null)
+            splashSound.playInstance();
+    }
+
+    /**
+     * Plays the explosion sound effect.
+     */
+    public void explosion() {
+        if (isEnabled() && explosionSound != null)
+            explosionSound.playInstance();
+    }
+
+    /**
+     * Plays sound effect when a ship has been destroyed.
+     */
+    public void shipDestroyed() {
+        if (isEnabled() && shipDestroyedSound != null)
+            shipDestroyedSound.playInstance();
+    }
+
+    /**
+     * Plays sound according to the received SoundEvent
+     *
+     * @param event the received SoundEvent
+     */
+    @Override
+    public void receivedEvent(SoundEvent event) {
+        switch (event.sound()) {
+            case EXPLOSION -> explosion();
+            case SPLASH -> splash();
+            case DESTROYED_SHIP -> shipDestroyed();
+            case MISSILE_LAUNCH -> missileLaunch();
+        }
+    }
+}

Projekte/battleship/client/src/main/java/pp/battleship/client/Menu.java

@@ -0,0 +1,183 @@
+package pp.battleship.client;
+
+import com.simsilica.lemur.Button;
+import com.simsilica.lemur.Checkbox;
+import com.simsilica.lemur.DefaultRangedValueModel;
+import com.simsilica.lemur.Label;
+import com.simsilica.lemur.Slider;
+import com.simsilica.lemur.core.VersionedReference;
+import com.simsilica.lemur.style.ElementId;
+import pp.dialog.Dialog;
+import pp.dialog.StateCheckboxModel;
+import pp.dialog.TextInputDialog;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.prefs.Preferences;
+
+import static pp.battleship.Resources.lookup;
+import static pp.util.PreferencesUtils.getPreferences;
+
+/**
+ * The Menu class represents the main menu in the Battleship game application.
+ * It extends the Dialog class and provides functionalities for loading, saving,
+ * returning to the game, and quitting the application.
+ */
+class Menu extends Dialog {
+    private static final Preferences PREFERENCES = getPreferences(Menu.class);
+    private static final String LAST_PATH = "last.file.path";
+    private final BattleshipApp app;
+    private final Button loadButton = new Button(lookup("menu.map.load"));
+    private final Button saveButton = new Button(lookup("menu.map.save"));
+    private final VersionedReference<Double> volumeRef;
+
+    /**
+     * Constructs the Menu dialog for the Battleship application.
+     *
+     * @param app the BattleshipApp instance
+     */
+    public Menu(BattleshipApp app) {
+        super(app.getDialogManager());
+        this.app = app;
+        addChild(new Label(lookup("battleship.name"), new ElementId("header"))); //NON-NLS
+        addChild(new Checkbox(lookup("menu.sound-enabled"),
+                              new StateCheckboxModel(app, GameSound.class)));
+        Checkbox musicToggle = new Checkbox(lookup("menu.music.toggle"));
+        musicToggle.setChecked(app.getBackgroundMusic().isMusicEnabled());
+        musicToggle.addClickCommands(s -> toggleMusic());
+        addChild(musicToggle);
+
+        addChild(new Label(lookup("menu.music.volume"), new ElementId("slider_label")));
+        Slider volumeSlider = new Slider();
+        volumeSlider.setModel(new DefaultRangedValueModel(0.00, 1.00, app.getBackgroundMusic().getVolume()));
+        volumeSlider.setDelta(0.05);
+        addChild(volumeSlider);
+
+        volumeRef = volumeSlider.getModel().createReference();
+
+        addChild(loadButton)
+                .addClickCommands(s -> ifTopDialog(this::loadDialog));
+        addChild(saveButton)
+                .addClickCommands(s -> ifTopDialog(this::saveDialog));
+        addChild(new Button(lookup("menu.return-to-game")))
+                .addClickCommands(s -> ifTopDialog(this::close));
+        addChild(new Button(lookup("menu.quit")))
+                .addClickCommands(s -> ifTopDialog(app::closeApp));
+
+        update();
+    }
+
+    /**
+     * Updates the volume when the slider is moved
+     *
+     * @param tpf time per frame
+     */
+    @Override
+    public void update(float tpf) {
+        if (volumeRef.update()) {
+            double newVolume = volumeRef.get();
+            adjustVolume(newVolume);
+        }
+    }
+
+    /**
+     * Adjusts the volume for the background music
+     *
+     * @param volume is the double value of the volume
+     */
+    private void adjustVolume(double volume) {
+        app.getBackgroundMusic().setVolume((float) volume);
+    }
+
+    /**
+     * Toggles the background music on and off
+     */
+    private void toggleMusic() {
+        app.getBackgroundMusic().toggleMusic();
+    }
+
+    /**
+     * Updates the state of the load and save buttons based on the game logic.
+     */
+    @Override
+    public void update() {
+        loadButton.setEnabled(app.getGameLogic().mayLoadMap());
+        saveButton.setEnabled(app.getGameLogic().maySaveMap());
+    }
+
+    /**
+     * As an escape action, this method closes the menu if it is the top dialog.
+     */
+    @Override
+    public void escape() {
+        close();
+    }
+
+    /**
+     * Functional interface for file actions.
+     */
+    @FunctionalInterface
+    private interface FileAction {
+        /**
+         * Executes a file action.
+         *
+         * @param file the file to be processed
+         * @throws IOException if an I/O error occurs
+         */
+        void run(File file) throws IOException;
+    }
+
+    /**
+     * Handles the file action for the provided dialog.
+     *
+     * @param fileAction the file action to be executed
+     * @param dialog     the dialog providing the file input
+     */
+    private void handle(FileAction fileAction, TextInputDialog dialog) {
+        try {
+            final String path = dialog.getInput().getText();
+            PREFERENCES.put(LAST_PATH, path);
+            fileAction.run(new File(path));
+            dialog.close();
+        }
+        catch (IOException e) {
+            app.errorDialog(e.getLocalizedMessage());
+        }
+    }
+
+    /**
+     * Shows a file dialog for loading or saving files.
+     *
+     * @param fileAction the action to perform with the selected file
+     * @param label      the label for the dialog
+     */
+    private void fileDialog(FileAction fileAction, String label) {
+        final TextInputDialog dialog =
+                TextInputDialog.builder(app.getDialogManager())
+                               .setLabel(lookup("label.file"))
+                               .setFocus(TextInputDialog::getInput)
+                               .setTitle(label)
+                               .setOkButton(lookup("button.ok"), d -> handle(fileAction, d))
+                               .setNoButton(lookup("button.cancel"))
+                               .setOkClose(false)
+                               .build();
+        final String path = PREFERENCES.get(LAST_PATH, null);
+        if (path != null)
+            dialog.getInput().setText(path.trim());
+        dialog.open();
+    }
+
+    /**
+     * Shows the load dialog for loading maps.
+     */
+    private void loadDialog() {
+        fileDialog(app.getGameLogic()::loadMap, lookup("menu.map.load"));
+    }
+
+    /**
+     * Shows the save dialog for saving maps.
+     */
+    private void saveDialog() {
+        fileDialog(app.getGameLogic()::saveMap, lookup("menu.map.save"));
+    }
+}

Projekte/battleship/client/src/main/java/pp/battleship/client/NetworkDialog.java

@@ -0,0 +1,196 @@
+package pp.battleship.client;
+
+import com.simsilica.lemur.Checkbox;
+import com.simsilica.lemur.Container;
+import com.simsilica.lemur.Label;
+import com.simsilica.lemur.TextField;
+import com.simsilica.lemur.component.SpringGridLayout;
+import pp.dialog.Dialog;
+import pp.dialog.DialogBuilder;
+import pp.dialog.SimpleDialog;
+import server.BattleshipServer;
+
+import java.lang.System.Logger;
+import java.lang.System.Logger.Level;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.Future;
+
+import static pp.battleship.Resources.lookup;
+
+/**
+ * Represents a dialog for setting up a network connection in the Battleship game.
+ * Allows users to specify the host and port for connecting to a game server.
+ */
+class NetworkDialog extends SimpleDialog {
+    private static final Logger LOGGER = System.getLogger(NetworkDialog.class.getName());
+    private static final String LOCALHOST = "localhost"; //NON-NLS
+    private static final String DEFAULT_PORT = "1234"; //NON-NLS
+    private final NetworkSupport network;
+    private final TextField host = new TextField(LOCALHOST);
+    private final TextField port = new TextField(DEFAULT_PORT);
+    private String hostname;
+    private int portNumber;
+    private Future<Object> connectionFuture;
+    private Dialog progressDialog;
+    private boolean hostServer = false;
+
+    /**
+     * Constructs a new NetworkDialog.
+     *
+     * @param network The NetworkSupport instance to be used for network operations.
+     */
+    NetworkDialog(NetworkSupport network) {
+        super(network.getApp().getDialogManager());
+        this.network = network;
+        host.setSingleLine(true);
+        host.setPreferredWidth(400f);
+        port.setSingleLine(true);
+
+        Checkbox hostServer = new Checkbox(lookup("start.own.server"));
+        hostServer.setChecked(false);
+        hostServer.addClickCommands(s -> toggleOwnServer());
+
+        final BattleshipApp app = network.getApp();
+        final Container input = new Container(new SpringGridLayout());
+        input.addChild(new Label(lookup("host.name") + ":  "));
+        input.addChild(host, 1);
+        input.addChild(new Label(lookup("port.number") + ":  "));
+        input.addChild(port, 1);
+        input.addChild(hostServer);
+
+        DialogBuilder.simple(app.getDialogManager())
+                     .setTitle(lookup("server.dialog"))
+                     .setExtension(d -> d.addChild(input))
+                     .setOkButton(lookup("button.connect"), d -> connect())
+                     .setNoButton(lookup("button.cancel"), app::closeApp)
+                     .setOkClose(false)
+                     .setNoClose(false)
+                     .build(this);
+    }
+
+    /**
+     * Handles the action for establishing the connection to a server.
+     * Tries to parse the port number and initiate connection to the server.
+     */
+    private void connectToServer() {
+        LOGGER.log(Level.INFO, "connect to host={0}, port={1}", host, port); //NON-NLS
+        try {
+            hostname = host.getText().trim().isEmpty() ? LOCALHOST : host.getText();
+            portNumber = Integer.parseInt(port.getText());
+            openProgressDialog();
+            connectionFuture = network.getApp().getExecutor().submit(this::initNetwork);
+        }
+        catch (NumberFormatException e) {
+            network.getApp().errorDialog(lookup("port.must.be.integer"));
+        }
+    }
+
+    /**
+     * Creates a dialog indicating that the connection is in progress.
+     */
+    private void openProgressDialog() {
+        progressDialog = DialogBuilder.simple(network.getApp().getDialogManager())
+                                      .setText(lookup("label.connecting"))
+                                      .build();
+        progressDialog.open();
+    }
+
+    /**
+     * Tries to initialize the network connection.
+     *
+     * @throws RuntimeException If an error occurs when creating the client.
+     */
+    private Object initNetwork() {
+        try {
+            network.initNetwork(hostname, portNumber);
+            return null;
+        }
+        catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    /**
+     * This method is called by {@linkplain pp.dialog.DialogManager#update(float)} for periodically
+     * updating this dialog. T
+     */
+    @Override
+    public void update(float delta) {
+        if (connectionFuture != null && connectionFuture.isDone())
+            try {
+                connectionFuture.get();
+                success();
+            }
+            catch (ExecutionException e) {
+                failure(e.getCause());
+            }
+            catch (InterruptedException e) {
+                LOGGER.log(Level.WARNING, "Interrupted!", e); //NON-NLS
+                Thread.currentThread().interrupt();
+            }
+    }
+
+    /**
+     * Handles a successful connection to the game server.
+     */
+    private void success() {
+        connectionFuture = null;
+        progressDialog.close();
+        this.close();
+        network.getApp().setInfoText(lookup("wait.for.an.opponent"));
+    }
+
+    /**
+     * Handles a failed connection attempt.
+     *
+     * @param e The cause of the failure.
+     */
+    private void failure(Throwable e) {
+        connectionFuture = null;
+        progressDialog.close();
+        network.getApp().errorDialog(lookup("server.connection.failed"));
+        network.getApp().setInfoText(e.getLocalizedMessage());
+    }
+
+    /**
+     * Handles the action for the connect-button.
+     * If hostServer-Checkbox is active, starts a new Server on the clients machine, else tries to connect to existing server
+     */
+    private void connect() {
+        if (hostServer) {
+            startServer();
+            try {
+                Thread.sleep(1000);
+            }
+            catch (InterruptedException e) {
+                LOGGER.log(Level.WARNING, e.getMessage(), e);
+            }
+            connectToServer();
+        }
+        else {
+            connectToServer();
+        }
+    }
+
+    /**
+     * Starts a server on the clients machine
+     */
+    private void startServer() {
+        new Thread(() -> {
+            try {
+                BattleshipServer battleshipServer = new BattleshipServer(Integer.parseInt(port.getText()));
+                battleshipServer.run();
+            }
+            catch (Exception e) {
+                LOGGER.log(Level.ERROR, e);
+            }
+        }).start();
+    }
+
+    /**
+     * Handles the action for the hostServer-Checkbox
+     */
+    private void toggleOwnServer() {
+        hostServer = !hostServer;
+    }
+}

Projekte/battleship/client/src/main/java/pp/battleship/client/NetworkSupport.java

@@ -0,0 +1,145 @@
+package pp.battleship.client;
+
+import com.jme3.network.Client;
+import com.jme3.network.ClientStateListener;
+import com.jme3.network.Message;
+import com.jme3.network.MessageListener;
+import com.jme3.network.Network;
+import pp.battleship.game.client.ServerConnection;
+import pp.battleship.message.client.ClientMessage;
+import pp.battleship.message.server.ServerMessage;
+
+import java.io.IOException;
+import java.lang.System.Logger;
+import java.lang.System.Logger.Level;
+
+import static pp.battleship.Resources.lookup;
+
+/**
+ * Manages the network connection for the Battleship application.
+ * Handles connecting to and disconnecting from the server, and sending messages.
+ */
+class NetworkSupport implements MessageListener<Client>, ClientStateListener, ServerConnection {
+    private static final Logger LOGGER = System.getLogger(NetworkSupport.class.getName());
+    private final BattleshipApp app;
+    private Client client;
+
+    /**
+     * Constructs a NetworkSupport instance for the given Battleship application.
+     *
+     * @param app The Battleship application instance.
+     */
+    public NetworkSupport(BattleshipApp app) {
+        this.app = app;
+    }
+
+    /**
+     * Returns the Battleship application instance.
+     *
+     * @return Battleship application instance
+     */
+    BattleshipApp getApp() {
+        return app;
+    }
+
+    /**
+     * Checks if there is a connection to the game server.
+     *
+     * @return true if there is a connection to the game server, false otherwise.
+     */
+    @Override
+    public boolean isConnected() {
+        return client != null && client.isConnected();
+    }
+
+    /**
+     * Attempts to join the game if there is no connection yet.
+     * Opens a dialog for the user to enter the host and port information.
+     */
+    @Override
+    public void connect() {
+        if (client == null)
+            new NetworkDialog(this).open();
+    }
+
+    /**
+     * Closes the client connection.
+     */
+    @Override
+    public void disconnect() {
+        if (client == null) return;
+        client.close();
+        client = null;
+        LOGGER.log(Level.INFO, "client closed"); //NON-NLS
+    }
+
+    /**
+     * Initializes the network connection.
+     *
+     * @param host The server's address.
+     * @param port The server's port.
+     * @throws IOException If an I/O error occurs when creating the client.
+     */
+    void initNetwork(String host, int port) throws IOException {
+        if (client != null)
+            throw new IllegalStateException("trying to join a game again");
+        client = Network.connectToServer(host, port);
+        client.start();
+        client.addMessageListener(this);
+        client.addClientStateListener(this);
+    }
+
+    /**
+     * Called when a message is received from the server.
+     *
+     * @param client  The client instance that received the message.
+     * @param message The message received from the server.
+     */
+    @Override
+    public void messageReceived(Client client, Message message) {
+        LOGGER.log(Level.INFO, "message received from server: {0}", message); //NON-NLS
+        if (message instanceof ServerMessage serverMessage)
+            app.enqueue(() -> serverMessage.accept(app.getGameLogic()));
+    }
+
+    /**
+     * Called when the client has successfully connected to the server.
+     *
+     * @param client The client that connected to the server.
+     */
+    @Override
+    public void clientConnected(Client client) {
+        LOGGER.log(Level.INFO, "Client connected: {0}", client); //NON-NLS
+    }
+
+    /**
+     * Called when the client is disconnected from the server.
+     *
+     * @param client         The client that was disconnected.
+     * @param disconnectInfo Information about the disconnection.
+     */
+    @Override
+    public void clientDisconnected(Client client, DisconnectInfo disconnectInfo) {
+        LOGGER.log(Level.INFO, "Client {0} disconnected: {1}", client, disconnectInfo); //NON-NLS
+        if (this.client != client)
+            throw new IllegalArgumentException("parameter value must be client");
+        LOGGER.log(Level.INFO, "client still connected: {0}", client.isConnected()); //NON-NLS
+        this.client = null;
+        disconnect();
+        app.enqueue(() -> app.setInfoText(lookup("lost.connection.to.server")));
+    }
+
+    /**
+     * Sends the specified message to the server.
+     *
+     * @param message The message to be sent to the server.
+     */
+    @Override
+    public void send(ClientMessage message) {
+        LOGGER.log(Level.INFO, "sending {0}", message); //NON-NLS
+        if (client == null)
+            app.errorDialog(lookup("lost.connection.to.server"));
+        else
+            client.send(message);
+    }
+}

Projekte/battleship/client/src/main/java/pp/battleship/client/gui/BattleAppState.java

@@ -0,0 +1,117 @@
+
+
+package pp.battleship.client.gui;
+
+import com.jme3.input.controls.ActionListener;
+import com.jme3.scene.Node;
+import com.jme3.system.AppSettings;
+import pp.battleship.client.BattleshipAppState;
+import pp.battleship.model.IntPoint;
+
+import java.lang.System.Logger;
+import java.lang.System.Logger.Level;
+
+import static pp.battleship.client.BattleshipApp.CLICK;
+
+/**
+ * Represents the state responsible for managing the battle interface within the Battleship game.
+ * This state handles the display and interaction of the battle map, including the opponent's map.
+ * It manages GUI components, input events, and the layout of the interface when this state is enabled.
+ */
+public class BattleAppState extends BattleshipAppState {
+    private static final Logger LOGGER = System.getLogger(BattleAppState.class.getName());
+    private static final float DEPTH = 0f;
+    private static final float GAP = 20f;
+
+    /**
+     * A listener for handling click events in the battle interface.
+     * When a click is detected, it triggers the corresponding actions on the opponent's map.
+     */
+    private final ActionListener clickListener = (name, isPressed, tpf) -> click(isPressed);
+
+    /**
+     * The root node for all GUI components in the battle state.
+     */
+    private final Node battleNode = new Node("Battle"); //NON-NLS
+
+    /**
+     * A view representing the opponent's map in the GUI.
+     */
+    private MapView opponentMapView;
+
+    /**
+     * Enables the battle state by initializing, laying out, and adding GUI components.
+     * Attaches the components to the GUI node and registers input listeners.
+     */
+    @Override
+    protected void enableState() {
+        battleNode.detachAllChildren();
+        initializeGuiComponents();
+        layoutGuiComponents();
+        addGuiComponents();
+        getApp().getGuiNode().attachChild(battleNode);
+        getApp().getInputManager().addListener(clickListener, CLICK);
+    }
+
+    /**
+     * Disables the battle state by removing GUI components and unregistering input listeners.
+     * Also handles cleanup of resources, such as the opponent's map view.
+     */
+    @Override
+    protected void disableState() {
+        getApp().getGuiNode().detachChild(battleNode);
+        getApp().getInputManager().removeListener(clickListener);
+        if (opponentMapView != null) {
+            opponentMapView.unregister();
+            opponentMapView = null;
+        }
+    }
+
+    /**
+     * Initializes the GUI components used in the battle state.
+     * Creates the opponent's map view and adds a grid overlay to it.
+     */
+    private void initializeGuiComponents() {
+        opponentMapView = new MapView(getGameLogic().getOpponentMap(), getApp());
+        opponentMapView.addGrid();
+    }
+
+    /**
+     * Adds the initialized GUI components to the battle node.
+     * Currently, it attaches the opponent's map view to the node.
+     */
+    private void addGuiComponents() {
+        battleNode.attachChild(opponentMapView.getNode());
+    }
+
+    /**
+     * Lays out the GUI components within the window, positioning them appropriately.
+     * The opponent's map view is positioned based on the window's dimensions and a specified gap.
+     */
+    private void layoutGuiComponents() {
+        final AppSettings s = getApp().getContext().getSettings();
+        final float mapWidth = opponentMapView.getWidth();
+        final float mapHeight = opponentMapView.getHeight();
+        final float windowWidth = s.getWidth();
+        final float windowHeight = s.getHeight();
+
+        opponentMapView.getNode().setLocalTranslation(windowWidth - mapWidth - GAP,
+                                                      windowHeight - mapHeight - GAP,
+                                                      DEPTH);
+    }
+
+    /**
+     * Handles click events in the battle interface. If the event indicates a click (not a release),
+     * it translates the cursor position to the model's coordinate system and triggers the game logic
+     * for interacting with the opponent's map.
+     *
+     * @param isPressed whether the mouse button is currently pressed (true) or released (false)
+     */
+    private void click(boolean isPressed) {
+        if (!isPressed || showsDialog())
+            return;
+        final IntPoint cursorPos = opponentMapView.mouseToModel(getApp().getInputManager().getCursorPosition());
+        LOGGER.log(Level.DEBUG, "click: {0}", cursorPos); //NON-NLS
+        getGameLogic().clickOpponentMap(cursorPos);
+    }
+}

Projekte/battleship/client/src/main/java/pp/battleship/client/gui/EditorAppState.java

@@ -0,0 +1,168 @@
+
+
+package pp.battleship.client.gui;
+
+import com.jme3.input.controls.ActionListener;
+import com.jme3.math.Vector2f;
+import com.jme3.scene.Node;
+import com.jme3.system.AppSettings;
+import com.simsilica.lemur.Button;
+import com.simsilica.lemur.Container;
+import pp.battleship.client.BattleshipAppState;
+
+import java.lang.System.Logger;
+import java.lang.System.Logger.Level;
+
+import static pp.battleship.Resources.lookup;
+import static pp.battleship.client.BattleshipApp.CLICK;
+
+/**
+ * EditorState manages the editor mode in the Battleship game,
+ * allowing players to place and rotate ships.
+ */
+public class EditorAppState extends BattleshipAppState {
+    private static final Logger LOGGER = System.getLogger(EditorAppState.class.getName());
+    private static final float DEPTH = 0f;
+    private static final float GAP = 20f;
+
+    private final ActionListener clickListener = (name, isPressed, tpf) -> click(isPressed);
+    private final Node editorNode = new Node("Editor"); //NON-NLS
+    private Container buttonContainer;
+    private Button rotateButton;
+    private Button readyButton;
+    private MapView ownMapView;
+    private MapView harborView;
+    private Vector2f oldCursorPosition;
+
+    /**
+     * Enables the editor state by attaching necessary nodes and listeners.
+     */
+    @Override
+    protected void enableState() {
+        editorNode.detachAllChildren();
+        initializeGuiComponents();
+        addGuiComponents();
+        layoutGuiComponents();
+        getApp().getGuiNode().attachChild(editorNode);
+        getApp().getInputManager().addListener(clickListener, CLICK);
+    }
+
+    /**
+     * Disables the editor state by detaching nodes and removing listeners.
+     */
+    @Override
+    protected void disableState() {
+        getApp().getGuiNode().detachChild(editorNode);
+        getApp().getInputManager().removeListener(clickListener);
+        if (ownMapView != null) {
+            ownMapView.unregister();
+            ownMapView = null;
+        }
+        if (harborView != null) {
+            harborView.unregister();
+            harborView = null;
+        }
+    }
+
+    /**
+     * Updates the editor state, handling cursor movement and enabling buttons.
+     *
+     * @param tpf Time per frame
+     */
+    @Override
+    public void update(float tpf) {
+        super.update(tpf);
+        cursorMovement();
+        enableButtons();
+    }
+
+    /**
+     * Enables or disables buttons based on the logic state.
+     */
+    private void enableButtons() {
+        readyButton.setEnabled(getGameLogic().isMapComplete());
+        rotateButton.setEnabled(getGameLogic().movingShip());
+    }
+
+    /**
+     * Handles cursor movement for previewing ship placement.
+     */
+    private void cursorMovement() {
+        if (!getGameLogic().movingShip() || ownMapView == null || showsDialog())
+            return;
+        final Vector2f cursorPosition = getApp().getInputManager().getCursorPosition();
+        if (!cursorPosition.equals(oldCursorPosition)) {
+            oldCursorPosition = new Vector2f(cursorPosition);
+            getGameLogic().movePreview(ownMapView.mouseToModel(cursorPosition));
+        }
+    }
+
+    /**
+     * Initializes the GUI components for the editor.
+     */
+    private void initializeGuiComponents() {
+        ownMapView = new MapView(getGameLogic().getOwnMap(), getApp());
+        harborView = new MapView(getGameLogic().getHarbor(), getApp());
+        ownMapView.addGrid();
+        rotateButton = new Button(lookup("button.rotate"));
+        readyButton = new Button(lookup("button.ready"));
+        rotateButton.addClickCommands(e -> {
+            if (!showsDialog())
+                getGameLogic().rotateShip();
+        });
+        readyButton.addClickCommands(e -> {
+            if (!showsDialog())
+                getGameLogic().mapFinished();
+        });
+        buttonContainer = new Container();
+    }
+
+    /**
+     * Adds the GUI components to the editor node.
+     */
+    private void addGuiComponents() {
+        buttonContainer.addChild(rotateButton, 0, 0);
+        buttonContainer.addChild(readyButton, 0, 1);
+        editorNode.attachChild(ownMapView.getNode());
+        editorNode.attachChild(harborView.getNode());
+        editorNode.attachChild(buttonContainer);
+    }
+
+    /**
+     * Lays out the GUI components on the screen.
+     */
+    private void layoutGuiComponents() {
+        final AppSettings s = getApp().getContext().getSettings();
+        final float harborWidth = harborView.getWidth();
+        final float harborHeight = harborView.getHeight();
+        final float ownMapWidth = ownMapView.getWidth();
+        final float ownMapHeight = ownMapView.getHeight();
+        final float windowWidth = s.getWidth();
+        final float windowHeight = s.getHeight();
+
+        ownMapView.getNode()
+                  .setLocalTranslation(0.5f * (windowWidth - harborWidth - ownMapWidth - GAP),
+                                       0.5f * (windowHeight - ownMapHeight),
+                                       DEPTH);
+
+        harborView.getNode()
+                  .setLocalTranslation(0.5f * (windowWidth - harborWidth + ownMapWidth + GAP),
+                                       0.5f * (windowHeight - harborHeight),
+                                       DEPTH);
+
+        buttonContainer.setLocalTranslation(0.5f * (windowWidth - harborWidth - ownMapWidth - GAP),
+                                            0.5f * (windowHeight - ownMapHeight - GAP),
+                                            DEPTH);
+    }
+
+    /**
+     * Handles click events to place or rotate ships on the maps.
+     */
+    private void click(boolean isPressed) {
+        if (!isPressed || showsDialog()) return;
+        final Vector2f cursorPos = getApp().getInputManager().getCursorPosition();
+        LOGGER.log(Level.DEBUG, "click: {0}", cursorPos); //NON-NLS
+        getGameLogic().clickHarbor(harborView.mouseToModel(cursorPos));
+        getGameLogic().clickOwnMap(ownMapView.mouseToModel(cursorPos));
+    }
+}

Projekte/battleship/client/src/main/java/pp/battleship/client/gui/HitEffectHandler.java

@@ -0,0 +1,181 @@
+package pp.battleship.client.gui;
+
+import com.jme3.app.Application;
+import com.jme3.asset.AssetManager;
+import com.jme3.effect.ParticleEmitter;
+import com.jme3.effect.ParticleMesh.Type;
+import com.jme3.material.Material;
+import com.jme3.math.ColorRGBA;
+import com.jme3.math.Vector3f;
+import com.jme3.scene.Node;
+import com.jme3.scene.control.AbstractControl;
+import pp.battleship.model.Shot;
+
+import java.lang.System.Logger;
+import java.lang.System.Logger.Level;
+
+public class HitEffectHandler {
+    private final AssetManager assetManager;
+    private static final Logger LOGGER = System.getLogger(HitEffectHandler.class.getName());
+
+    /**
+     * Constructor for the HitEffectHandler class
+     *
+     * @param app the main application
+     */
+    public HitEffectHandler(Application app) {
+        assetManager = app.getAssetManager();
+    }
+
+    /**
+     * Creates explosion, debris and fire effects when ship gets hit
+     *
+     * @param battleshipNode the node of the ship that gets hit and the effect should be attached to
+     * @param shot           The shot taken on a field
+     */
+    public void hitEffect(Node battleshipNode, Shot shot) {
+        //Explosion
+        ParticleEmitter explosion = new ParticleEmitter("Explosion", Type.Triangle, 30);
+        explosion.setMaterial(new Material(assetManager, "Common/MatDefs/Misc/Particle.j3md"));
+        explosion.setImagesX(2);
+        explosion.setImagesY(2);
+        explosion.setStartColor(new ColorRGBA(0.96f, 0.82f, 0.6f, 1f));
+        explosion.setEndColor(new ColorRGBA(0.88f, 0.32f, 0.025f, 1f));
+        explosion.getParticleInfluencer().setInitialVelocity(new Vector3f(0, 1, 0));
+        explosion.setStartSize(0.45f);
+        explosion.setEndSize(0.1f);
+        explosion.setGravity(0, -0.5f, 0);
+        explosion.setLowLife(1f);
+        explosion.setHighLife(3.5f);
+        explosion.setParticlesPerSec(0);
+        explosion.setLocalTranslation(shot.getY() + 0.5f, 0, shot.getX() + 0.5f);
+        explosion.emitAllParticles();
+
+        //Debris
+        ParticleEmitter debris = new ParticleEmitter("Debris", Type.Triangle, 6);
+        Material debrisMaterial = new Material(assetManager, "Common/MatDefs/Misc/Particle.j3md");
+        debrisMaterial.setTexture("Texture", assetManager.loadTexture("Textures/Debris/debris.png"));
+        debris.setMaterial(debrisMaterial);
+        debris.setImagesX(2);
+        debris.setImagesY(2);
+        debris.setStartColor(ColorRGBA.White);
+        debris.setEndColor(ColorRGBA.White);
+        debris.getParticleInfluencer().setInitialVelocity(new Vector3f(0.25f, 2f, 0.25f));
+        debris.setStartSize(0.25f);
+        debris.setEndSize(0.1f);
+        debris.setGravity(0, 1.5f, 0);
+        debris.getParticleInfluencer().setVelocityVariation(0.3f);
+        debris.setLowLife(1f);
+        debris.setHighLife(3.5f);
+        debris.setParticlesPerSec(0);
+        debris.setLocalTranslation(shot.getY() + 0.5f, 0, shot.getX() + 0.5f);
+        debris.emitAllParticles();
+
+        //Fire
+        ParticleEmitter fire = new ParticleEmitter("Fire", Type.Triangle, 30);
+        Material fireMaterial = new Material(assetManager, "Common/MatDefs/Misc/Particle.j3md");
+        fireMaterial.setTexture("Texture", assetManager.loadTexture("Textures/Fire/fire.png"));
+        fire.setMaterial(fireMaterial);
+        fire.setImagesX(2);
+        fire.setImagesY(2);
+        fire.setStartColor(ColorRGBA.Orange);
+        fire.setEndColor(ColorRGBA.Red);
+        fire.getParticleInfluencer().setInitialVelocity(new Vector3f(0, 1.5f, 0));
+        fire.setStartSize(0.2f);
+        fire.setEndSize(0.05f);
+        fire.setLowLife(1f);
+        fire.setHighLife(2f);
+        fire.getParticleInfluencer().setVelocityVariation(0.2f);
+        fire.setLocalTranslation(shot.getY() + 0.5f, 0f, shot.getX() + 0.5f);
+        fire.getLocalTranslation().subtractLocal(battleshipNode.getLocalTranslation());
+        battleshipNode.attachChild(fire);
+        fire.emitAllParticles();
+
+//        LOGGER.log(Level.DEBUG, "Created HitEffect at {0}", explosion.getLocalTranslation().toString());
+//        LOGGER.log(Level.DEBUG, "Created HitEffect at {0}", debris.getLocalTranslation().toString());
+//        LOGGER.log(Level.INFO, "Created HitEffect at {0}", fire.getLocalTranslation().toString());
+
+        battleshipNode.attachChild(explosion);
+        explosion.addControl(new EffectControl(explosion, battleshipNode));
+        fire.addControl(new EffectControl(fire, battleshipNode));
+        battleshipNode.attachChild(debris);
+        debris.addControl(new EffectControl(debris, battleshipNode));
+    }
+
+    /**
+     * Creates a splash effect if the shot hits the water
+     *
+     * @param shot The shot taken on a field
+     */
+    public ParticleEmitter missEffect(Shot shot) {
+        ParticleEmitter missEffect = new ParticleEmitter("HitEffect", Type.Triangle, 45);
+        missEffect.setMaterial(new Material(assetManager, "Common/MatDefs/Misc/Particle.j3md"));
+        missEffect.setImagesX(2);
+        missEffect.setImagesY(2);
+        missEffect.setStartColor(new ColorRGBA(0.067f, 0.06f, 0.37f, 0.87f));
+        missEffect.setEndColor(new ColorRGBA(0.32f, 0.55f, 0.87f, 0.79f));
+        missEffect.getParticleInfluencer().setInitialVelocity(new Vector3f(0, 1, 0));
+        missEffect.setStartSize(0.1f);
+        missEffect.setEndSize(0.08f);
+        missEffect.setGravity(0, 0.36f, 0);
+        missEffect.setLowLife(0.7f);
+        missEffect.setHighLife(1.8f);
+        missEffect.setParticlesPerSec(0);
+        missEffect.setLocalTranslation(shot.getY() + 0.5f, 0, shot.getX() + 0.5f);
+
+        LOGGER.log(Level.DEBUG, "Created MissEffect at {0}", missEffect.getLocalTranslation().toString());
+
+        missEffect.emitAllParticles();
+        missEffect.addControl(new EffectControl(missEffect));
+        return missEffect;
+    }
+
+    /**
+     * Inner class to control effects
+     */
+    private static class EffectControl extends AbstractControl {
+        private final ParticleEmitter emitter;
+        private final Node parentNode;
+
+        /**
+         * Constructor used to attach effect to a node
+         *
+         * @param emitter    the particle emitter to be controlled
+         * @param parentNode the node to be attached
+         */
+        public EffectControl(ParticleEmitter emitter, Node parentNode) {
+            this.emitter = emitter;
+            this.parentNode = parentNode;
+        }
+
+        /**
+         * Constructor used if the effect shouldn't be attached to a node
+         *
+         * @param emitter the particle emitter to be controlled
+         */
+        public EffectControl(ParticleEmitter emitter) {
+            this.emitter = emitter;
+            this.parentNode = null;
+        }
+
+        /**
+         * Checks if the Effect is not rendered anymore so it can be removed
+         *
+         * @param tpf time per frame (in seconds)
+         */
+        @Override
+        protected void controlUpdate(float tpf) {
+            if (emitter.getParticlesPerSec() == 0 && emitter.getNumVisibleParticles() == 0) {
+                if (parentNode != null)
+                    parentNode.detachChild(emitter);
+            }
+        }
+
+        /**
+         * @param rm the RenderManager rendering the controlled Spatial (not null)
+         * @param vp the ViewPort being rendered (not null)
+         */
+        @Override
+        protected void controlRender(com.jme3.renderer.RenderManager rm, com.jme3.renderer.ViewPort vp) {}
+    }
+}

Projekte/battleship/client/src/main/java/pp/battleship/client/gui/MapView.java

@@ -0,0 +1,186 @@
+
+
+package pp.battleship.client.gui;
+
+import com.jme3.material.Material;
+import com.jme3.material.RenderState.BlendMode;
+import com.jme3.math.ColorRGBA;
+import com.jme3.math.Vector2f;
+import com.jme3.math.Vector3f;
+import com.jme3.scene.Geometry;
+import com.jme3.scene.Node;
+import com.jme3.scene.Spatial.CullHint;
+import com.jme3.scene.shape.Quad;
+import pp.battleship.client.BattleshipApp;
+import pp.battleship.model.IntPoint;
+import pp.battleship.model.ShipMap;
+import pp.util.FloatPoint;
+import pp.util.Position;
+
+/**
+ * Represents the visual view of a {@link ShipMap}, used to display the map structure such as the player's map, harbor,
+ * and opponent's map. This class handles the graphical representation of the map, including background setup, grid lines,
+ * and interaction between the model and the view.
+ */
+class MapView {
+    private static final float FIELD_SIZE = 40f;
+    private static final float GRID_LINE_WIDTH = 2f;
+    private static final float BACKGROUND_DEPTH = -4f;
+    private static final float GRID_DEPTH = -1f;
+    private static final ColorRGBA BACKGROUND_COLOR = new ColorRGBA(0, 0.05f, 0.05f, 0.5f);
+    private static final ColorRGBA GRID_COLOR = ColorRGBA.Green;
+
+    // Reference to the main application and the ship map being visualized
+    private final BattleshipApp app;
+    private final Node mapNode = new Node("map"); // NON-NLS
+    private final ShipMap map;
+    private final MapViewSynchronizer synchronizer;
+
+    /**
+     * Constructs a new MapView for a given {@link ShipMap} and {@link BattleshipApp}.
+     * Initializes the view by setting up the background and registering a synchronizer to listen to changes in the map.
+     *
+     * @param map the ship map to visualize
+     * @param app the main application instance
+     */
+    MapView(ShipMap map, BattleshipApp app) {
+        this.map = map;
+        this.app = app;
+        this.synchronizer = new MapViewSynchronizer(this);
+        setupBackground();
+        app.getGameLogic().addListener(synchronizer);
+    }
+
+    /**
+     * Unregisters the {@link MapViewSynchronizer} from the listener list of the ClientGameLogic,
+     * stopping the view from receiving updates when the underlying {@link ShipMap} changes.
+     * After calling this method, this MapView instance should no longer be used.
+     */
+    void unregister() {
+        app.getGameLogic().removeListener(synchronizer);
+    }
+
+    /**
+     * Gets the {@link ShipMap} associated with this view.
+     *
+     * @return the ship map
+     */
+    public ShipMap getMap() {
+        return map;
+    }
+
+    /**
+     * Gets the {@link BattleshipApp} instance associated with this view.
+     *
+     * @return the main application instance
+     */
+    public BattleshipApp getApp() {
+        return app;
+    }
+
+    /**
+     * Sets up the background of the map view using a quad geometry.
+     * The background is configured with a semi-transparent color and placed at a specific depth.
+     */
+    private void setupBackground() {
+        final Material mat = new Material(app.getAssetManager(), "Common/MatDefs/Misc/Unshaded.j3md"); // NON-NLS
+        mat.setColor("Color", BACKGROUND_COLOR); // NON-NLS
+        mat.getAdditionalRenderState().setBlendMode(BlendMode.Alpha);
+        final Position corner = modelToView(map.getWidth(), map.getHeight());
+        final Geometry background = new Geometry("MapBackground", new Quad(corner.getX(), corner.getY()));
+        background.setMaterial(mat);
+        background.setLocalTranslation(0f, 0f, BACKGROUND_DEPTH);
+        background.setCullHint(CullHint.Never);
+        mapNode.attachChild(background);
+    }
+
+    /**
+     * Adds grid lines to the map view to visually separate the fields within the map.
+     * The grid lines are drawn based on the dimensions of the ship map.
+     */
+    public void addGrid() {
+        for (int x = 0; x <= map.getWidth(); x++) {
+            final Position f = modelToView(x, 0);
+            final Position t = modelToView(x, map.getHeight());
+            mapNode.attachChild(gridLine(f, t));
+        }
+        for (int y = 0; y <= map.getHeight(); y++) {
+            final Position f = modelToView(0, y);
+            final Position t = modelToView(map.getWidth(), y);
+            mapNode.attachChild(gridLine(f, t));
+        }
+    }
+
+    /**
+     * Gets the root node containing all visual elements in this map view.
+     *
+     * @return the root node for the map view
+     */
+    public Node getNode() {
+        return mapNode;
+    }
+
+    /**
+     * Gets the total width of the map in view coordinates.
+     *
+     * @return the width of the map in view coordinates
+     */
+    public float getWidth() {
+        return FIELD_SIZE * map.getWidth();
+    }
+
+    /**
+     * Gets the total height of the map in view coordinates.
+     *
+     * @return the height of the map in view coordinates
+     */
+    public float getHeight() {
+        return FIELD_SIZE * map.getHeight();
+    }
+
+    /**
+     * Converts coordinates from view coordinates to model coordinates.
+     *
+     * @param x the x-coordinate in view space
+     * @param y the y-coordinate in view space
+     * @return the corresponding model coordinates as an {@link IntPoint}
+     */
+    public IntPoint viewToModel(float x, float y) {
+        return new IntPoint((int) Math.floor(x / FIELD_SIZE), (int) Math.floor(y / FIELD_SIZE));
+    }
+
+    /**
+     * Converts coordinates from model coordinates to view coordinates.
+     *
+     * @param x the x-coordinate in model space
+     * @param y the y-coordinate in model space
+     * @return the corresponding view coordinates as a {@link Position}
+     */
+    public Position modelToView(float x, float y) {
+        return new FloatPoint(x * FIELD_SIZE, y * FIELD_SIZE);
+    }
+
+    /**
+     * Converts the mouse position to model coordinates.
+     * This method takes into account the map's transformation in the 3D scene.
+     *
+     * @param pos the 2D vector representing the mouse position in the view
+     * @return the corresponding model coordinates as an {@link IntPoint}
+     */
+    public IntPoint mouseToModel(Vector2f pos) {
+        final Vector3f world = new Vector3f(pos.getX(), pos.getY(), 0f);
+        final Vector3f view = mapNode.getWorldTransform().transformInverseVector(world, null);
+        return viewToModel(view.getX(), view.getY());
+    }
+
+    /**
+     * Creates a visual representation of a grid line between two positions.
+     *
+     * @param p1 the start position of the grid line
+     * @param p2 the end position of the grid line
+     * @return a {@link Geometry} representing the grid line
+     */
+    private Geometry gridLine(Position p1, Position p2) {
+        return app.getDraw().makeFatLine(p1, p2, GRID_DEPTH, GRID_COLOR, GRID_LINE_WIDTH);
+    }
+}

Projekte/battleship/client/src/main/java/pp/battleship/client/gui/MapViewSynchronizer.java

@@ -0,0 +1,155 @@
+
+
+package pp.battleship.client.gui;
+
+import com.jme3.math.ColorRGBA;
+import com.jme3.scene.Geometry;
+import com.jme3.scene.Node;
+import com.jme3.scene.Spatial;
+import pp.battleship.model.Battleship;
+import pp.battleship.model.IntPoint;
+import pp.battleship.model.Shell;
+import pp.battleship.model.Shot;
+import pp.util.Position;
+
+import java.lang.System.Logger;
+import java.lang.System.Logger.Level;
+
+/**
+ * Synchronizes the visual representation of the ship map with the game model.
+ * It handles the rendering of ships and shots on the map view, updating the view
+ * whenever changes occur in the model.
+ */
+class MapViewSynchronizer extends ShipMapSynchronizer {
+    // Constants for rendering properties
+    private static final float SHIP_LINE_WIDTH = 6f;
+    private static final float SHOT_DEPTH = -2f;
+    private static final float SHIP_DEPTH = 0f;
+    private static final float INDENT = 4f;
+    private static final float MISSILE_DEPTH = 6f;
+    private static final float MISSILE_SIZE = 0.8f;
+    private static final float MISSILE_CENTERED_IN_MAP_GRID = 0.0625f;
+
+    // Colors used for different visual elements
+    private static final ColorRGBA HIT_COLOR = ColorRGBA.Red;
+    private static final ColorRGBA MISS_COLOR = ColorRGBA.Blue;
+    private static final ColorRGBA SHIP_BORDER_COLOR = ColorRGBA.White;
+    private static final ColorRGBA PREVIEW_COLOR = ColorRGBA.Gray;
+    private static final ColorRGBA ERROR_COLOR = ColorRGBA.Red;
+
+    // The MapView associated with this synchronizer
+    private final MapView view;
+
+    static final Logger LOGGER = System.getLogger(MapViewSynchronizer.class.getName());
+
+    /**
+     * Constructs a new MapViewSynchronizer for the given MapView.
+     * Initializes the synchronizer and adds existing elements from the model to the view.
+     *
+     * @param view the MapView to synchronize with the game model
+     */
+    public MapViewSynchronizer(MapView view) {
+        super(view.getMap(), view.getNode());
+        this.view = view;
+        addExisting();
+    }
+
+    /**
+     * Creates a visual representation of a shot on the map.
+     * A hit shot is represented in red, while a miss is represented in blue.
+     *
+     * @param shot the Shot object representing the shot in the model
+     * @return a Spatial representing the shot on the map
+     */
+    @Override
+    public Spatial visit(Shot shot) {
+        LOGGER.log(Level.DEBUG, "visiting" + shot);
+        // Convert the shot's model coordinates to view coordinates
+        final Position p1 = view.modelToView(shot.getX(), shot.getY());
+        final Position p2 = view.modelToView(shot.getX() + 1, shot.getY() + 1);
+        final ColorRGBA color = shot.isHit() ? HIT_COLOR : MISS_COLOR;
+
+        // Create and return a rectangle representing the shot
+        return view.getApp().getDraw().makeRectangle(p1.getX(), p1.getY(), SHOT_DEPTH, p2.getX() - p1.getX(), p2.getY() - p1.getY(), color);
+    }
+
+    /**
+     * Creates a visual representation of a battleship on the map.
+     * The ship's border color depends on its status: normal, valid preview, or invalid preview.
+     *
+     * @param ship the Battleship object representing the ship in the model
+     * @return a Spatial representing the ship on the map
+     */
+    @Override
+    public Spatial visit(Battleship ship) {
+        // Create a node to represent the ship
+        final Node shipNode = new Node("ship"); //NON-NLS
+
+        // Convert the ship's model coordinates to view coordinates
+        final Position p1 = view.modelToView(ship.getMinX(), ship.getMinY());
+        final Position p2 = view.modelToView(ship.getMaxX() + 1, ship.getMaxY() + 1);
+
+        // Calculate the coordinates for the ship's bounding box
+        final float x1 = p1.getX() + INDENT;
+        final float y1 = p1.getY() + INDENT;
+        final float x2 = p2.getX() - INDENT;
+        final float y2 = p2.getY() - INDENT;
+
+        // Determine the color based on the ship's status
+        final ColorRGBA color = switch (ship.getStatus()) {
+            case NORMAL -> SHIP_BORDER_COLOR;
+            case VALID_PREVIEW -> PREVIEW_COLOR;
+            case INVALID_PREVIEW -> ERROR_COLOR;
+        };
+
+        // Add the ship's borders to the node
+        shipNode.attachChild(shipLine(x1, y1, x2, y1, color));
+        shipNode.attachChild(shipLine(x1, y2, x2, y2, color));
+        shipNode.attachChild(shipLine(x1, y1, x1, y2, color));
+        shipNode.attachChild(shipLine(x2, y1, x2, y2, color));
+
+        // Return the complete ship representation
+        return shipNode;
+    }
+
+    /**
+     * Creates a visual representation on the map
+     *
+     * @param shell the Shell element to visit
+     * @return the node the visual representation gets attached to.
+     */
+    @Override
+    public Spatial visit(Shell shell) {
+        LOGGER.log(Logger.Level.DEBUG, "Visiting {0}", shell);
+        final Node missileNode = new Node("missile");
+        final Position p1 = view.modelToView(shell.getX(), shell.getY());
+        final Position p2 = view.modelToView(shell.getX() + MISSILE_SIZE, shell.getY() + MISSILE_SIZE);
+
+        final float x1 = p1.getX() + INDENT;
+        final float y1 = p1.getY() + INDENT;
+        final float x2 = p2.getX() - INDENT;
+        final float y2 = p2.getY() - INDENT;
+
+        final Position startPosition = view.modelToView(MISSILE_CENTERED_IN_MAP_GRID, MISSILE_CENTERED_IN_MAP_GRID);
+
+        missileNode.attachChild(view.getApp().getDraw().makeRectangle(startPosition.getX(), startPosition.getY(), MISSILE_DEPTH, p2.getX() - p1.getX(), p2.getY() - p1.getY(), ColorRGBA.DarkGray));
+        missileNode.setLocalTranslation(startPosition.getX(), startPosition.getY(), MISSILE_DEPTH);
+        missileNode.addControl(new ShellMapControl(p1, view.getApp(), new IntPoint(shell.getX(), shell.getY())));
+        return missileNode;
+    }
+
+    /**
+     * Creates a line geometry representing part of the ship's border.
+     *
+     * @param x1    the starting x-coordinate of the line
+     * @param y1    the starting y-coordinate of the line
+     * @param x2    the ending x-coordinate of the line
+     * @param y2    the ending y-coordinate of the line
+     * @param color the color of the line
+     * @return a Geometry representing the line
+     */
+    private Geometry shipLine(float x1, float y1, float x2, float y2, ColorRGBA color) {
+        LOGGER.log(Logger.Level.DEBUG, "created Ship line");
+        return view.getApp().getDraw().makeFatLine(x1, y1, x2, y2, SHIP_DEPTH, color, SHIP_LINE_WIDTH);
+    }
+}

Projekte/battleship/client/src/main/java/pp/battleship/client/gui/SeaAppState.java

@@ -0,0 +1,198 @@
+
+
+package pp.battleship.client.gui;
+
+import com.jme3.app.Application;
+import com.jme3.app.state.AppStateManager;
+import com.jme3.asset.AssetManager;
+import com.jme3.light.AmbientLight;
+import com.jme3.light.DirectionalLight;
+import com.jme3.material.Material;
+import com.jme3.math.ColorRGBA;
+import com.jme3.math.Vector2f;
+import com.jme3.math.Vector3f;
+import com.jme3.renderer.Camera;
+import com.jme3.renderer.queue.RenderQueue.ShadowMode;
+import com.jme3.scene.Geometry;
+import com.jme3.scene.Node;
+import com.jme3.scene.Spatial;
+import com.jme3.scene.shape.Box;
+import com.jme3.shadow.DirectionalLightShadowRenderer;
+import com.jme3.shadow.EdgeFilteringMode;
+import com.jme3.texture.Texture;
+import com.jme3.util.SkyFactory;
+import com.jme3.util.TangentBinormalGenerator;
+import pp.battleship.client.BattleshipAppState;
+import pp.battleship.model.ShipMap;
+import pp.util.FloatMath;
+
+import static pp.util.FloatMath.TWO_PI;
+import static pp.util.FloatMath.cos;
+import static pp.util.FloatMath.sin;
+import static pp.util.FloatMath.sqrt;
+
+/**
+ * Manages the rendering and visual aspects of the sea and sky in the Battleship game.
+ * This state is responsible for setting up and updating the sea, sky, and lighting
+ * conditions, and controls the camera to create a dynamic view of the game environment.
+ */
+public class SeaAppState extends BattleshipAppState {
+    /**
+     * The path to the sea texture material.
+     */
+    private static final String SEA_TEXTURE = "Textures/Terrain/Water/Water.j3m"; //NON-NLS
+    private static final float ABOVE_SEA_LEVEL = 4f;
+    private static final float INCLINATION = 2.5f;
+
+    /**
+     * The root node for all visual elements in this state.
+     */
+    private final Node viewNode = new Node("view"); //NON-NLS
+
+    /**
+     * The node containing the scene elements, such as the sea surface.
+     */
+    private final Node sceneNode = new Node("scene"); //NON-NLS
+
+    /**
+     * Synchronizes the sea's visual representation with the game logic.
+     */
+    private SeaSynchronizer synchronizer;
+
+    /**
+     * The current angle of the camera around the center of the map.
+     */
+    private float cameraAngle;
+
+    /**
+     * Initializes the state by setting up the sky, lights, and other visual components.
+     * This method is called when the state is first attached to the state manager.
+     *
+     * @param stateManager the state manager
+     * @param application  the application
+     */
+    @Override
+    public void initialize(AppStateManager stateManager, Application application) {
+        super.initialize(stateManager, application);
+        viewNode.attachChild(sceneNode);
+        setupLights();
+        setupSky();
+    }
+
+    /**
+     * Enables the sea and sky state, setting up the scene and registering any necessary listeners.
+     * This method is called when the state is set to active.
+     */
+    @Override
+    protected void enableState() {
+        sceneNode.detachAllChildren();
+        setupScene();
+        if (synchronizer == null) {
+            synchronizer = new SeaSynchronizer(getApp(), sceneNode, getGameLogic().getOwnMap());
+            getGameLogic().addListener(synchronizer);
+        }
+        getApp().getRootNode().attachChild(viewNode);
+    }
+
+    /**
+     * Disables the sea and sky state, removing visual elements from the scene and unregistering listeners.
+     * This method is called when the state is set to inactive.
+     */
+    @Override
+    protected void disableState() {
+        getApp().getRootNode().detachChild(viewNode);
+        if (synchronizer != null) {
+            getGameLogic().removeListener(synchronizer);
+            synchronizer = null;
+        }
+    }
+
+    /**
+     * Updates the state each frame, moving the camera to simulate it circling around the map.
+     *
+     * @param tpf the time per frame (seconds)
+     */
+    @Override
+    public void update(float tpf) {
+        super.update(tpf);
+        cameraAngle += TWO_PI * 0.05f * tpf;
+        adjustCamera();
+    }
+
+    /**
+     * Sets up the lighting for the scene, including directional and ambient lights.
+     * Also configures shadows to enhance the visual depth of the scene.
+     */
+    private void setupLights() {
+        final AssetManager assetManager = getApp().getAssetManager();
+        final DirectionalLightShadowRenderer shRend = new DirectionalLightShadowRenderer(assetManager, 2048, 3);
+        shRend.setLambda(0.55f);
+        shRend.setShadowIntensity(0.6f);
+        shRend.setEdgeFilteringMode(EdgeFilteringMode.Bilinear);
+        getApp().getViewPort().addProcessor(shRend);
+
+        final DirectionalLight sun = new DirectionalLight();
+        sun.setDirection(new Vector3f(-1f, -0.7f, -1f).normalizeLocal());
+        viewNode.addLight(sun);
+        shRend.setLight(sun);
+
+        final AmbientLight ambientLight = new AmbientLight(new ColorRGBA(0.3f, 0.3f, 0.3f, 0f));
+        viewNode.addLight(ambientLight);
+    }
+
+    /**
+     * Sets up the sky in the scene using a skybox with textures for all six directions.
+     * This creates a realistic and immersive environment for the sea.
+     */
+    private void setupSky() {
+        final AssetManager assetManager = getApp().getAssetManager();
+        final Texture west = assetManager.loadTexture("Textures/Sky/Lagoon/lagoon_west.jpg"); //NON-NLS
+        final Texture east = assetManager.loadTexture("Textures/Sky/Lagoon/lagoon_east.jpg"); //NON-NLS
+        final Texture north = assetManager.loadTexture("Textures/Sky/Lagoon/lagoon_north.jpg"); //NON-NLS
+        final Texture south = assetManager.loadTexture("Textures/Sky/Lagoon/lagoon_south.jpg"); //NON-NLS
+        final Texture up = assetManager.loadTexture("Textures/Sky/Lagoon/lagoon_up.jpg"); //NON-NLS
+        final Texture down = assetManager.loadTexture("Textures/Sky/Lagoon/lagoon_down.jpg"); //NON-NLS
+        final Spatial sky = SkyFactory.createSky(assetManager, west, east, north, south, up, down);
+        sky.rotate(0f, FloatMath.PI, 0f);
+        viewNode.attachChild(sky);
+    }
+
+    /**
+     * Sets up the sea surface in the scene. This includes creating the sea mesh,
+     * applying textures, and enabling shadows.
+     */
+    private void setupScene() {
+        final ShipMap ownMap = getGameLogic().getOwnMap();
+        final float x = 0.5f * ownMap.getWidth();
+        final float y = 0.5f * ownMap.getHeight();
+        final Box seaMesh = new Box(y + 0.5f, 0.1f, x + 0.5f);
+        final Geometry seaGeo = new Geometry("sea", seaMesh); //NON-NLS
+        seaGeo.setLocalTranslation(new Vector3f(y, -0.1f, x));
+        seaMesh.scaleTextureCoordinates(new Vector2f(4f, 4f));
+        final Material seaMat = getApp().getAssetManager().loadMaterial(SEA_TEXTURE);
+        seaGeo.setMaterial(seaMat);
+        seaGeo.setShadowMode(ShadowMode.CastAndReceive);
+        TangentBinormalGenerator.generate(seaGeo);
+        sceneNode.attachChild(seaGeo);
+    }
+
+    /**
+     * Adjusts the camera position and orientation to create a circular motion around
+     * the center of the map. This provides a dynamic view of the sea and surrounding environment.
+     */
+    private void adjustCamera() {
+        final ShipMap ownMap = getGameLogic().getOwnMap();
+        final float mx = 0.5f * ownMap.getWidth();
+        final float my = 0.5f * ownMap.getHeight();
+        final float radius = 2f * sqrt(mx * mx + my + my);
+        final float cos = radius * cos(cameraAngle);
+        final float sin = radius * sin(cameraAngle);
+        final float x = mx - cos;
+        final float y = my - sin;
+        final Camera camera = getApp().getCamera();
+        camera.setLocation(new Vector3f(y, ABOVE_SEA_LEVEL, x));
+        camera.getRotation().lookAt(new Vector3f(sin, -INCLINATION, cos),
+                                    Vector3f.UNIT_Y);
+        camera.update();
+    }
+}

Projekte/battleship/client/src/main/java/pp/battleship/client/gui/SeaSynchronizer.java

@@ -0,0 +1,322 @@
+
+
+package pp.battleship.client.gui;
+
+import com.jme3.material.Material;
+import com.jme3.material.RenderState;
+import com.jme3.material.RenderState.BlendMode;
+import com.jme3.math.ColorRGBA;
+import com.jme3.renderer.queue.RenderQueue;
+import com.jme3.renderer.queue.RenderQueue.ShadowMode;
+import com.jme3.scene.Geometry;
+import com.jme3.scene.Node;
+import com.jme3.scene.Spatial;
+import com.jme3.scene.shape.Box;
+import com.jme3.scene.shape.Cylinder;
+import pp.battleship.client.BattleshipApp;
+import pp.battleship.model.Battleship;
+import pp.battleship.model.Shell;
+import pp.battleship.model.Rotation;
+import pp.battleship.model.ShipMap;
+import pp.battleship.model.Shot;
+
+import static java.util.Objects.requireNonNull;
+import static pp.util.FloatMath.HALF_PI;
+import static pp.util.FloatMath.PI;
+
+/**
+ * The {@code SeaSynchronizer} class is responsible for synchronizing the graphical
+ * representation of the ships and shots on the sea map with the underlying data model.
+ * It extends the {@link ShipMapSynchronizer} to provide specific synchronization
+ * logic for the sea map.
+ */
+class SeaSynchronizer extends ShipMapSynchronizer {
+    private static final String UNSHADED = "Common/MatDefs/Misc/Unshaded.j3md"; //NON-NLS
+    private static final String KING_GEORGE_V_MODEL = "Models/KingGeorgeV/KingGeorgeV.j3o";
+    private static final String UBOAT_MODEL = "Models/UBOAT/14084_WWII_Ship_German_Type_II_U-boat_v2_L1.obj";
+    private static final String PATROL_BOAT_MODEL = "Models/PATROL_BOAT/12219_boat_v2_L2.obj";
+    private static final String MODERN_BATTLESHIP_MODEL = "Models/BATTLESHIP/10619_Battleship.obj";
+    private static final String MODERN_BATTLESHIP_TEXTURES = "Models/BATTLESHIP/BattleshipC.jpg";
+    private static final String MISSILE_MODEL = "Models/Missile/AIM120D.obj";
+    private static final String MISSILE_TEXTURE = "Models/Missile/texture.png";
+    private static final String COLOR = "Color"; //NON-NLS
+    private static final String SHIP = "ship"; //NON-NLS
+    private static final String SHOT = "shot"; //NON-NLS
+    private static final String MISSILE = "missile"; //NON-NLS
+    private static final ColorRGBA BOX_COLOR = ColorRGBA.Gray;
+    private static final ColorRGBA SPLASH_COLOR = new ColorRGBA(0f, 0f, 1f, 0.4f);
+    private static final ColorRGBA HIT_COLOR = new ColorRGBA(1f, 0f, 0f, 0.4f);
+    private final HitEffectHandler hitEffectHandler;
+
+    private final ShipMap map;
+    private final BattleshipApp app;
+
+    /**
+     * Constructs a {@code SeaSynchronizer} object with the specified application, root node, and ship map.
+     *
+     * @param app  the Battleship application
+     * @param root the root node to which graphical elements will be attached
+     * @param map  the ship map containing the ships and shots
+     */
+    public SeaSynchronizer(BattleshipApp app, Node root, ShipMap map) {
+        super(app.getGameLogic().getOwnMap(), root);
+        this.app = app;
+        this.map = map;
+        hitEffectHandler = new HitEffectHandler(app);
+        addExisting();
+    }
+
+    /**
+     * Visits a {@link Shot} and creates a graphical representation of it.
+     * If the shot is a hit, it attaches the representation to the ship node.
+     *
+     * @param shot the shot to be represented
+     * @return the graphical representation of the shot, or null if the shot is a hit
+     * and the representation has been attached to the ship node
+     */
+    @Override
+    public Spatial visit(Shot shot) {
+        return shot.isHit() ? handleHit(shot) : hitEffectHandler.missEffect(shot);
+    }
+
+    /**
+     * Handles a hit by attaching its representation to the node that
+     * contains the ship model as a child so that it moves with the ship.
+     *
+     * @param shot a hit
+     * @return always null to prevent the representation from being attached
+     * to the items node as well
+     */
+    private Spatial handleHit(Shot shot) {
+        final Battleship ship = requireNonNull(map.findShipAt(shot), "Missing ship");
+        final Node shipNode = requireNonNull((Node) getSpatial(ship), "Missing ship node");
+
+        hitEffectHandler.hitEffect(shipNode, shot);
+
+        return null;
+    }
+
+    /**
+     * Creates a cylinder geometry representing the specified shot.
+     * The appearance of the cylinder depends on whether the shot is a hit or a miss.
+     *
+     * @param shot the shot to be represented
+     * @return the geometry representing the shot
+     */
+    private Geometry createCylinder(Shot shot) {
+        final ColorRGBA color = shot.isHit() ? HIT_COLOR : SPLASH_COLOR;
+        final float height = shot.isHit() ? 1.2f : 0.1f;
+
+        final Cylinder cylinder = new Cylinder(2, 20, 0.45f, height, true);
+        final Geometry geometry = new Geometry(SHOT, cylinder);
+
+        geometry.setMaterial(createColoredMaterial(color));
+        geometry.rotate(HALF_PI, 0f, 0f);
+        // compute the center of the shot in world coordinates
+        geometry.setLocalTranslation(shot.getY() + 0.5f, 0f, shot.getX() + 0.5f);
+
+        return geometry;
+    }
+
+    /**
+     * Visits a {@link Battleship} and creates a graphical representation of it.
+     * The representation is either a 3D model or a simple box depending on the
+     * type of battleship.
+     *
+     * @param ship the battleship to be represented
+     * @return the node containing the graphical representation of the battleship
+     */
+    @Override
+    public Spatial visit(Battleship ship) {
+        final Node node = new Node(SHIP);
+        node.attachChild(createShip(ship));
+        // compute the center of the ship in world coordinates
+        final float x = 0.5f * (ship.getMinY() + ship.getMaxY() + 1f);
+        final float z = 0.5f * (ship.getMinX() + ship.getMaxX() + 1f);
+        node.setLocalTranslation(x, 0f, z);
+        node.addControl(new ShipControl(ship));
+        return node;
+    }
+
+    /**
+     * Visits a Shell and creates a graphical representation of it.
+     *
+     * @param shell the Shell to be represented
+     * @return the node containing the graphical representation of the Shell
+     */
+    @Override
+    public Spatial visit(Shell shell) {
+        final Node node = new Node(MISSILE);
+        node.attachChild(createMissile());
+
+        final float x = shell.getY();
+        final float z = shell.getX();
+        node.setLocalTranslation(x + 0.5f, 10f, z + 0.5f);
+        node.addControl(new ShellControl(shell, app));
+        return node;
+    }
+
+    /**
+     * Creates the appropriate graphical representation of the specified battleship.
+     * The representation is either a detailed model or a simple box based on the length of the ship.
+     *
+     * @param ship the battleship to be represented
+     * @return the spatial representing the battleship
+     */
+    private Spatial createShip(Battleship ship) {
+        return switch (ship.getLength()) {
+            case 1 -> createPatrolBoat(ship);
+            case 2 -> createModernBattleship(ship);
+            case 3 -> createUboat(ship);
+            case 4 -> createBattleship(ship);
+            default -> createBox(ship);
+        };
+    }
+
+    /**
+     * Creates a simple box to represent a battleship that is not of the "King George V" type.
+     *
+     * @param ship the battleship to be represented
+     * @return the geometry representing the battleship as a box
+     */
+    private Spatial createBox(Battleship ship) {
+        final Box box = new Box(0.5f * (ship.getMaxY() - ship.getMinY()) + 0.3f,
+                                0.3f,
+                                0.5f * (ship.getMaxX() - ship.getMinX()) + 0.3f);
+        final Geometry geometry = new Geometry(SHIP, box);
+        geometry.setMaterial(createColoredMaterial(BOX_COLOR));
+        geometry.setShadowMode(ShadowMode.CastAndReceive);
+
+        return geometry;
+    }
+
+    /**
+     * Creates a new {@link Material} with the specified color.
+     * If the color includes transparency (i.e., alpha value less than 1),
+     * the material's render state is set to use alpha blending, allowing for
+     * semi-transparent rendering.
+     *
+     * @param color the {@link ColorRGBA} to be applied to the material. If the alpha value
+     *              of the color is less than 1, the material will support transparency.
+     * @return a {@link Material} instance configured with the specified color and,
+     * if necessary, alpha blending enabled.
+     */
+    private Material createColoredMaterial(ColorRGBA color) {
+        final Material material = new Material(app.getAssetManager(), UNSHADED);
+        if (color.getAlpha() < 1f)
+            material.getAdditionalRenderState().setBlendMode(BlendMode.Alpha);
+        material.setColor(COLOR, color);
+        return material;
+    }
+
+    /**
+     * Creates a detailed 3D model to represent a "King George V" battleship.
+     *
+     * @param ship the battleship to be represented
+     * @return the spatial representing the "King George V" battleship
+     */
+    private Spatial createBattleship(Battleship ship) {
+        final Spatial model = app.getAssetManager().loadModel(KING_GEORGE_V_MODEL);
+
+        model.rotate(-HALF_PI, calculateRotationAngle(ship.getRot()), 0f);
+        model.scale(1.48f);
+        model.setShadowMode(ShadowMode.CastAndReceive);
+
+        return model;
+    }
+
+    /**
+     * Creates a detailed 3D model to represent a modern battleship.
+     *
+     * @param ship the battleship to be represented
+     * @return the spatial representing the battleship
+     */
+
+    private Spatial createModernBattleship(Battleship ship) {
+        final Spatial model = app.getAssetManager().loadModel(MODERN_BATTLESHIP_MODEL);
+        Material mat = new Material(app.getAssetManager(), UNSHADED);
+        mat.setTexture("ColorMap", app.getAssetManager().loadTexture(MODERN_BATTLESHIP_TEXTURES));
+        mat.getAdditionalRenderState().setBlendMode(RenderState.BlendMode.Off);
+        model.setMaterial(mat);
+
+        model.setQueueBucket(RenderQueue.Bucket.Opaque);
+
+        model.rotate(-HALF_PI, calculateRotationAngle(ship.getRot()) + HALF_PI, 0f);
+        model.scale(0.000075f);
+        model.setShadowMode(ShadowMode.CastAndReceive);
+        model.move(0, 0.2f, 0);
+        return model;
+    }
+
+    /**
+     * Creates a detailed 3D model to represent a missile.
+     *
+     * @return the spatial representing the missile
+     */
+
+    private Spatial createMissile() {
+        final Spatial model = app.getAssetManager().loadModel(MISSILE_MODEL);
+        Material mat = new Material(app.getAssetManager(), UNSHADED);
+        mat.setTexture("ColorMap", app.getAssetManager().loadTexture(MISSILE_TEXTURE));
+        mat.getAdditionalRenderState().setBlendMode(RenderState.BlendMode.Off);
+        model.setMaterial(mat);
+
+        model.setQueueBucket(RenderQueue.Bucket.Opaque);
+
+        model.rotate(-HALF_PI, 0, 0);
+        model.scale(0.009f);
+        model.setShadowMode(ShadowMode.CastAndReceive);
+        model.move(0, 0f, 0);
+        return model;
+    }
+
+    /**
+     * Creates a detailed 3D model to represent a Uboat.
+     *
+     * @param ship the battleship to be represented
+     * @return the spatial representing the Uboat
+     */
+
+    private Spatial createUboat(Battleship ship) {
+        final Spatial model = app.getAssetManager().loadModel(UBOAT_MODEL);
+
+        model.rotate(-HALF_PI, calculateRotationAngle(ship.getRot()), 0f);
+        model.scale(0.45f);
+        model.setShadowMode(ShadowMode.CastAndReceive);
+        model.move(0, -0.25f, 0);
+
+        return model;
+    }
+
+    /**
+     * Creates a detailed 3D model to represent a Patrol boat.
+     *
+     * @param ship the battleship to be represented
+     * @return the spatial representing the Patrol boat
+     */
+
+    private Spatial createPatrolBoat(Battleship ship) {
+        final Spatial model = app.getAssetManager().loadModel(PATROL_BOAT_MODEL);
+
+        model.rotate(-HALF_PI, calculateRotationAngle(ship.getRot()), 0f);
+        model.scale(0.00045f);
+        model.setShadowMode(ShadowMode.CastAndReceive);
+
+        return model;
+    }
+
+    /**
+     * Calculates the rotation angle for the specified rotation.
+     *
+     * @param rot the rotation of the battleship
+     * @return the rotation angle in radians
+     */
+    private static float calculateRotationAngle(Rotation rot) {
+        return switch (rot) {
+            case RIGHT -> HALF_PI;
+            case DOWN -> 0f;
+            case LEFT -> -HALF_PI;
+            case UP -> PI;
+        };
+    }
+}

Projekte/battleship/client/src/main/java/pp/battleship/client/gui/ShellControl.java

@@ -0,0 +1,62 @@
+package pp.battleship.client.gui;
+
+import com.jme3.renderer.RenderManager;
+import com.jme3.renderer.ViewPort;
+import com.jme3.scene.control.AbstractControl;
+import pp.battleship.client.BattleshipApp;
+import pp.battleship.message.client.EndAnimationMessage;
+import pp.battleship.model.IntPoint;
+import pp.battleship.model.Shell;
+
+import java.lang.System.Logger;
+import java.lang.System.Logger.Level;
+
+/**
+ * Class to control the 3D representation of a shell
+ */
+public class ShellControl extends AbstractControl {
+
+    private final Shell shell;
+    private final BattleshipApp app;
+    private static final float TRAVEL_SPEED = 8.5f;
+    static final Logger LOGGER = System.getLogger(BattleshipApp.class.getName());
+
+    /**
+     * Constructor for ShellControl class
+     *
+     * @param shell The Shell to be displayed
+     * @param app   the main application
+     */
+    public ShellControl(Shell shell, BattleshipApp app) {
+        this.shell = shell;
+        this.app = app;
+    }
+
+    /**
+     * Method to control movement of the Shell and remove it when target is reached
+     *
+     * @param tpf time per frame (in seconds)
+     */
+    @Override
+    public void controlUpdate(float tpf) {
+        //LOGGER.log(Level.DEBUG, "missile at x=" + shell.getX() + ", y=" + shell.getY());
+        spatial.move(0, -TRAVEL_SPEED * tpf, 0);
+        if (spatial.getLocalTranslation().getY() <= 0.2) {
+            spatial.getParent().detachChild(spatial);
+            app.getGameLogic().send(new EndAnimationMessage(new IntPoint(shell.getX(), shell.getY())));
+        }
+    }
+
+    /**
+     * This method is called during the rendering phase, but it does not perform any
+     * operations in this implementation as the control only influences the spatial's
+     * transformation, not its rendering process.
+     *
+     * @param rm the RenderManager rendering the controlled Spatial (not null)
+     * @param vp the ViewPort being rendered (not null)
+     */
+    @Override
+    protected void controlRender(RenderManager rm, ViewPort vp) {
+
+    }
+}

Projekte/battleship/client/src/main/java/pp/battleship/client/gui/ShellMapControl.java

@@ -0,0 +1,62 @@
+package pp.battleship.client.gui;
+
+import com.jme3.math.Vector3f;
+import com.jme3.renderer.RenderManager;
+import com.jme3.renderer.ViewPort;
+import com.jme3.scene.control.AbstractControl;
+import pp.battleship.client.BattleshipApp;
+import pp.battleship.message.client.EndAnimationMessage;
+import pp.battleship.model.IntPoint;
+import pp.util.Position;
+
+/**
+ * Class to control the 2D representation of a shell
+ */
+public class ShellMapControl extends AbstractControl {
+    private final Position position;
+    private final IntPoint pos;
+    private static final Vector3f VECTOR_3_F = new Vector3f();
+    private final BattleshipApp app;
+
+    /**
+     * Constructor for ShellMapControl
+     *
+     * @param position the target position of the shell
+     * @param app      the main application
+     * @param pos      the position the then to render shot goes to
+     */
+    public ShellMapControl(Position position, BattleshipApp app, IntPoint pos) {
+        super();
+        this.position = position;
+        this.pos = pos;
+        this.app = app;
+        VECTOR_3_F.set(new Vector3f(position.getX(), position.getY(), 0));
+    }
+
+    /**
+     * Method to control movement of the Shell on the map and remove it when target is reached
+     *
+     * @param tpf time per frame (in seconds)
+     */
+    @Override
+    protected void controlUpdate(float tpf) {
+        spatial.move(VECTOR_3_F.mult(tpf));
+        if (spatial.getLocalTranslation().getX() >= position.getX() && spatial.getLocalTranslation().getY() >= position.getY()) {
+            spatial.getParent().detachChild(spatial);
+            app.getGameLogic().send(new EndAnimationMessage(pos));
+        }
+    }
+
+    /**
+     * This method is called during the rendering phase, but it does not perform any
+     * operations in this implementation as the control only influences the spatial's
+     * transformation, not its rendering process.
+     *
+     * @param rm the RenderManager rendering the controlled Spatial (not null)
+     * @param vp the ViewPort being rendered (not null)
+     */
+    @Override
+    protected void controlRender(RenderManager rm, ViewPort vp) {
+
+    }
+}

Projekte/battleship/client/src/main/java/pp/battleship/client/gui/ShipControl.java

@@ -0,0 +1,120 @@
+
+
+package pp.battleship.client.gui;
+
+import com.jme3.math.Quaternion;
+import com.jme3.math.Vector3f;
+import com.jme3.renderer.RenderManager;
+import com.jme3.renderer.ViewPort;
+import com.jme3.scene.control.AbstractControl;
+import pp.battleship.model.Battleship;
+
+import java.lang.System.Logger;
+import java.lang.System.Logger.Level;
+
+import static pp.util.FloatMath.DEG_TO_RAD;
+import static pp.util.FloatMath.TWO_PI;
+import static pp.util.FloatMath.sin;
+
+/**
+ * Controls the oscillating pitch motion of a battleship model in the game.
+ * The ship oscillates to simulate a realistic movement on water, based on its orientation and length.
+ */
+class ShipControl extends AbstractControl {
+    /**
+     * The axis of rotation for the ship's pitch (tilting forward and backward).
+     */
+    private final Vector3f axis;
+
+    /**
+     * The duration of one complete oscillation cycle in seconds.
+     */
+    private final float cycle;
+
+    /**
+     * The amplitude of the pitch oscillation in radians, determining how much the ship tilts.
+     */
+    private final float amplitude;
+
+    /**
+     * A quaternion representing the ship's current pitch rotation.
+     */
+    private final Quaternion pitch = new Quaternion();
+
+    /**
+     * The current time within the oscillation cycle, used to calculate the ship's pitch angle.
+     */
+    private float time;
+    /**
+     * Ship to be controlled
+     */
+    private final Battleship battleship;
+
+    private static final Logger LOGGER = System.getLogger(ShipControl.class.getName());
+
+    /**
+     * Constructs a new ShipControl instance for the specified Battleship.
+     * The ship's orientation determines the axis of rotation, while its length influences
+     * the cycle duration and amplitude of the oscillation.
+     *
+     * @param ship the Battleship object to control
+     */
+    public ShipControl(Battleship ship) {
+        this.battleship = ship;
+        // Determine the axis of rotation based on the ship's orientation
+        axis = switch (ship.getRot()) {
+            case LEFT, RIGHT -> Vector3f.UNIT_X;
+            case UP, DOWN -> Vector3f.UNIT_Z;
+        };
+
+        // Set the cycle duration and amplitude based on the ship's length
+        cycle = battleship.getLength() * 2f;
+        amplitude = 5f * DEG_TO_RAD / ship.getLength();
+    }
+
+    /**
+     * Updates the ship's pitch oscillation each frame. The ship's pitch is adjusted
+     * to create a continuous tilting motion, simulating the effect of waves.
+     *
+     * @param tpf time per frame (in seconds), used to calculate the new pitch angle
+     */
+    @Override
+    protected void controlUpdate(float tpf) {
+        // If spatial is null, do nothing
+        if (spatial == null) return;
+
+        if (battleship.isDestroyed() && spatial.getLocalTranslation().getY() < -0.6f) {
+            LOGGER.log(Level.INFO, "Ship removed {0}", spatial.getName());
+            spatial.getParent().detachChild(spatial);
+        }
+        else if (battleship.isDestroyed()) {
+            spatial.move(0, -0.2f * tpf, 0);
+        }
+        else {
+            // Update the time within the oscillation cycle
+            time = (time + tpf) % cycle;
+
+            // Calculate the current angle of the oscillation
+            final float angle = amplitude * sin(time * TWO_PI / cycle);
+
+            // Update the pitch Quaternion with the new angle
+            pitch.fromAngleAxis(angle, axis);
+        }
+
+        // Apply the pitch rotation to the spatial
+        spatial.setLocalRotation(pitch);
+    }
+
+    /**
+     * This method is called during the rendering phase, but it does not perform any
+     * operations in this implementation as the control only influences the spatial's
+     * transformation, not its rendering process.
+     *
+     * @param rm the RenderManager rendering the controlled Spatial (not null)
+     * @param vp the ViewPort being rendered (not null)
+     */
+    @Override
+    protected void controlRender(RenderManager rm, ViewPort vp) {
+        // No rendering logic is needed for this control
+    }
+}

Projekte/battleship/client/src/main/java/pp/battleship/client/gui/ShipMapSynchronizer.java

@@ -0,0 +1,84 @@
+
+
+package pp.battleship.client.gui;
+
+import com.jme3.scene.Node;
+import com.jme3.scene.Spatial;
+import pp.battleship.model.Item;
+import pp.battleship.model.ShipMap;
+import pp.battleship.model.Visitor;
+import pp.battleship.notification.GameEventListener;
+import pp.battleship.notification.ItemAddedEvent;
+import pp.battleship.notification.ItemRemovedEvent;
+import pp.view.ModelViewSynchronizer;
+
+/**
+ * Abstract base class for synchronizing the visual representation of a {@link ShipMap} with its model state.
+ * This class handles the addition and removal of items from the ship map, ensuring that changes in the model
+ * are accurately reflected in the view.
+ * <p>
+ * Subclasses are responsible for providing the specific implementation of how each item in the map
+ * is represented visually by implementing the {@link Visitor} interface.
+ * </p>
+ */
+abstract class ShipMapSynchronizer extends ModelViewSynchronizer<Item> implements Visitor<Spatial>, GameEventListener {
+    // The ship map that this synchronizer is responsible for
+    private final ShipMap shipMap;
+
+    /**
+     * Constructs a new ShipMapSynchronizer.
+     * Initializes the synchronizer with the provided ship map and the root node for attaching view representations.
+     *
+     * @param map  the ship map to be synchronized
+     * @param root the root node to which the view representations of the ship map items are attached
+     */
+    protected ShipMapSynchronizer(ShipMap map, Node root) {
+        super(root);
+        this.shipMap = map;
+    }
+
+    /**
+     * Translates a model item into its corresponding visual representation.
+     * The specific visual representation is determined by the concrete implementation of the {@link Visitor} interface.
+     *
+     * @param item the item from the model to be translated
+     * @return the visual representation of the item as a {@link Spatial}
+     */
+    @Override
+    protected Spatial translate(Item item) {
+        return item.accept(this);
+    }
+
+    /**
+     * Adds the existing items from the ship map to the view.
+     * This method should be called during initialization to ensure that all current items in the ship map
+     * are visually represented.
+     */
+    protected void addExisting() {
+        shipMap.getItems().forEach(this::add);
+    }
+
+    /**
+     * Handles the event when an item is removed from the ship map.
+     * Removes the visual representation of the item from the view if it belongs to the synchronized ship map.
+     *
+     * @param event the event indicating that an item has been removed from the ship map
+     */
+    @Override
+    public void receivedEvent(ItemRemovedEvent event) {
+        if (shipMap == event.map())
+            delete(event.item());
+    }
+
+    /**
+     * Handles the event when an item is added to the ship map.
+     * Adds the visual representation of the new item to the view if it belongs to the synchronized ship map.
+     *
+     * @param event the event indicating that an item has been added to the ship map
+     */
+    @Override
+    public void receivedEvent(ItemAddedEvent event) {
+        if (shipMap == event.map())
+            add(event.item());
+    }
+}

Projekte/battleship/client/src/main/java/server/BattleshipServer.java

@@ -0,0 +1,211 @@
+
+
+package server;
+
+import com.jme3.network.ConnectionListener;
+import com.jme3.network.HostedConnection;
+import com.jme3.network.Message;
+import com.jme3.network.MessageListener;
+import com.jme3.network.Network;
+import com.jme3.network.Server;
+import com.jme3.network.serializing.Serializer;
+import pp.battleship.BattleshipConfig;
+import pp.battleship.game.server.Player;
+import pp.battleship.game.server.ServerGameLogic;
+import pp.battleship.game.server.ServerSender;
+import pp.battleship.message.client.ClientMessage;
+import pp.battleship.message.client.EndAnimationMessage;
+import pp.battleship.message.client.MapMessage;
+import pp.battleship.message.client.ShootMessage;
+import pp.battleship.message.server.EffectMessage;
+import pp.battleship.message.server.GameDetails;
+import pp.battleship.message.server.ServerMessage;
+import pp.battleship.message.server.StartAnimationMessage;
+import pp.battleship.message.server.StartBattleMessage;
+import pp.battleship.message.server.SwitchToBattleState;
+import pp.battleship.model.Battleship;
+import pp.battleship.model.IntPoint;
+import pp.battleship.model.Shot;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.lang.System.Logger;
+import java.lang.System.Logger.Level;
+import java.util.concurrent.BlockingQueue;
+import java.util.concurrent.LinkedBlockingQueue;
+import java.util.logging.LogManager;
+
+/**
+ * Server implementing the visitor pattern as MessageReceiver for ClientMessages
+ */
+public class BattleshipServer implements MessageListener<HostedConnection>, ConnectionListener, ServerSender {
+    private static final Logger LOGGER = System.getLogger(BattleshipServer.class.getName());
+    private static final File CONFIG_FILE = new File("server.properties");
+
+    private static int port;
+
+    private final BattleshipConfig config = new BattleshipConfig();
+    private Server myServer;
+    private final ServerGameLogic logic;
+    private final BlockingQueue<ReceivedMessage> pendingMessages = new LinkedBlockingQueue<>();
+
+    static {
+        // Configure logging
+        LogManager manager = LogManager.getLogManager();
+        try {
+            manager.readConfiguration(new FileInputStream("logging.properties"));
+            LOGGER.log(Level.INFO, "Successfully read logging properties"); //NON-NLS
+        }
+        catch (IOException e) {
+            LOGGER.log(Level.INFO, e.getMessage());
+        }
+    }
+
+    /**
+     * Creates the server.
+     */
+    public BattleshipServer(int port) {
+        config.readFromIfExists(CONFIG_FILE);
+        BattleshipServer.port = port;
+        LOGGER.log(Level.INFO, "Configuration: {0}", config); //NON-NLS
+        logic = new ServerGameLogic(this, config);
+    }
+
+    /**
+     * Runs a server
+     */
+    public void run() {
+        startServer();
+        while (true)
+            processNextMessage();
+    }
+
+    /**
+     * Starts a server
+     */
+    private void startServer() {
+        try {
+            LOGGER.log(Level.INFO, "Starting server..."); //NON-NLS
+            myServer = Network.createServer(port);
+            initializeSerializables();
+            myServer.start();
+            registerListeners();
+            LOGGER.log(Level.INFO, "Server started: {0}", myServer.isRunning()); //NON-NLS
+        }
+        catch (IOException e) {
+            LOGGER.log(Level.ERROR, "Couldn't start server: {0}", e.getMessage()); //NON-NLS
+            exit(1);
+        }
+    }
+
+    /**
+     * Processes next received message
+     */
+    private void processNextMessage() {
+        try {
+            pendingMessages.take().process(logic);
+        }
+        catch (InterruptedException ex) {
+            LOGGER.log(Level.INFO, "Interrupted while waiting for messages"); //NON-NLS
+            Thread.currentThread().interrupt();
+        }
+    }
+
+    /**
+     * Registers all serializable classes
+     */
+    private void initializeSerializables() {
+        Serializer.registerClass(GameDetails.class);
+        Serializer.registerClass(StartBattleMessage.class);
+        Serializer.registerClass(MapMessage.class);
+        Serializer.registerClass(ShootMessage.class);
+        Serializer.registerClass(EffectMessage.class);
+        Serializer.registerClass(Battleship.class);
+        Serializer.registerClass(IntPoint.class);
+        Serializer.registerClass(Shot.class);
+        Serializer.registerClass(StartAnimationMessage.class);
+        Serializer.registerClass(EndAnimationMessage.class);
+        Serializer.registerClass(SwitchToBattleState.class);
+    }
+
+    /**
+     * Registers all listeners
+     */
+    private void registerListeners() {
+        myServer.addMessageListener(this, MapMessage.class);
+        myServer.addMessageListener(this, ShootMessage.class);
+        myServer.addMessageListener(this, EndAnimationMessage.class);
+        myServer.addConnectionListener(this);
+    }
+
+    /**
+     * Handles a received message
+     * @param source the connection the message comes from
+     * @param message the received message
+     */
+    @Override
+    public void messageReceived(HostedConnection source, Message message) {
+        LOGGER.log(Level.INFO, "message received from {0}: {1}", source.getId(), message); //NON-NLS
+        if (message instanceof ClientMessage clientMessage)
+            pendingMessages.add(new ReceivedMessage(clientMessage, source.getId()));
+    }
+
+    /**
+     * Adds a new connection to a server
+     * @param server the server to add the connection to
+     * @param hostedConnection the connection to be added
+     */
+    @Override
+    public void connectionAdded(Server server, HostedConnection hostedConnection) {
+        LOGGER.log(Level.INFO, "new connection {0}", hostedConnection); //NON-NLS
+        logic.addPlayer(hostedConnection.getId());
+    }
+
+    /**
+     * Removes a standing connection from a server
+     * @param server the server to add the connection to
+     * @param hostedConnection the connection to be added
+     */
+    @Override
+    public void connectionRemoved(Server server, HostedConnection hostedConnection) {
+        LOGGER.log(Level.INFO, "connection closed: {0}", hostedConnection); //NON-NLS
+        final Player player = logic.getPlayerById(hostedConnection.getId());
+        if (player == null)
+            LOGGER.log(Level.INFO, "closed connection does not belong to an active player"); //NON-NLS
+        else { //NON-NLS
+            LOGGER.log(Level.INFO, "closed connection belongs to {0}", player); //NON-NLS
+            exit(0);
+        }
+    }
+
+    /**
+     * Shuts down the server and terminates the application with the given exit code
+     * @param exitValue the exit status code
+     */
+    private void exit(int exitValue) { //NON-NLS
+        LOGGER.log(Level.INFO, "close request"); //NON-NLS
+        if (myServer != null)
+            for (HostedConnection client : myServer.getConnections()) //NON-NLS
+                if (client != null) client.close("Game over"); //NON-NLS
+        System.exit(exitValue);
+    }
+
+    /**
+     * Send the specified message to the specified connection.
+     *
+     * @param id      the connection id
+     * @param message the message
+     */
+    public void send(int id, ServerMessage message) {
+        if (myServer == null || !myServer.isRunning()) {
+            LOGGER.log(Level.ERROR, "no server running when trying to send {0}", message); //NON-NLS
+            return;
+        }
+        final HostedConnection connection = myServer.getConnection(id);
+        if (connection != null)
+            connection.send(message);
+        else
+            LOGGER.log(Level.ERROR, "there is no connection with id={0}", id); //NON-NLS
+    }
+}

Projekte/battleship/client/src/main/java/server/ReceivedMessage.java

@@ -0,0 +1,17 @@
+
+
+package server;
+
+import pp.battleship.message.client.ClientInterpreter;
+import pp.battleship.message.client.ClientMessage;
+
+/**
+ * Represents a message received from a client
+ * @param message the received message
+ * @param from the ID of the client that sent the message
+ */
+record ReceivedMessage(ClientMessage message, int from) {
+    void process(ClientInterpreter interpreter) {
+        message.accept(interpreter, from);
+    }
+}

Projekte/battleship/client/src/main/resources/Models/BATTLESHIP/10619_Battleship.mtl

@@ -0,0 +1,73 @@
+newmtl Battleship
+illum 4
+Kd 0.00 0.00 0.00
+Ka 0.00 0.00 0.00
+Tf 1.00 1.00 1.00
+map_Kd BattleshipC.jpg
+Ni 1.00
+Ks 0.00 0.00 0.00
+Ns 256.00
+newmtl blinn1SG
+illum 4
+Kd 0.50 0.50 0.50
+Ka 0.00 0.00 0.00
+Tf 1.00 1.00 1.00
+Ni 1.00
+Ks 0.00 0.00 0.00
+Ns 256.00
+newmtl blinn2SG
+illum 4
+Kd 0.50 0.50 0.50
+Ka 0.00 0.00 0.00
+Tf 1.00 1.00 1.00
+Ni 1.00
+Ks 0.00 0.00 0.00
+Ns 256.00
+newmtl blinn3SG
+illum 4
+Kd 0.50 0.50 0.50
+Ka 0.00 0.00 0.00
+Tf 1.00 1.00 1.00
+Ni 1.00
+Ks 0.50 0.50 0.50
+Ns 256.00
+newmtl blinn4SG
+illum 4
+Kd 0.50 0.50 0.50
+Ka 0.00 0.00 0.00
+Tf 1.00 1.00 1.00
+Ni 1.00
+Ks 0.50 0.50 0.50
+Ns 256.00
+newmtl blinn5SG
+illum 4
+Kd 0.50 0.50 0.50
+Ka 0.00 0.00 0.00
+Tf 1.00 1.00 1.00
+Ni 1.00
+Ks 0.50 0.50 0.50
+Ns 256.00
+newmtl blinn6SG
+illum 4
+Kd 0.50 0.50 0.50
+Ka 0.00 0.00 0.00
+Tf 1.00 1.00 1.00
+Ni 1.00
+Ks 0.50 0.50 0.50
+Ns 256.00
+newmtl blinn7SG
+illum 4
+Kd 0.50 0.50 0.50
+Ka 0.00 0.00 0.00
+Tf 1.00 1.00 1.00
+Ni 1.00
+Ks 0.50 0.50 0.50
+Ns 256.00
+newmtl blinn8SG
+illum 4
+Kd 0.50 0.50 0.50
+Ka 0.00 0.00 0.00
+Tf 1.00 1.00 1.00
+Ni 1.00
+Ks 0.50 0.50 0.50
+Ns 256.00

Projekte/battleship/client/src/main/resources/Models/KingGeorgeV/README.txt

@@ -0,0 +1,3 @@
+based on:
+https://free3d.com/3d-model/wwii-ship-uk-king-george-v-class-battleship-v1--185381.html
+License: Free Personal Use Only

Projekte/battleship/client/src/main/resources/Models/Missile/AIM120D.mtl

@@ -0,0 +1,12 @@
+# Blender MTL File: 'AIM120D.blend'
+# Material Count: 1
+
+newmtl Material.006
+Ns 96.078431
+Ka 0.000000 0.000000 0.000000
+Kd 0.640000 0.640000 0.640000
+Ks 0.500000 0.500000 0.500000
+Ni 1.000000
+d 1.000000
+illum 2
+map_Kd texture.png

Projekte/battleship/client/src/main/resources/Models/Missile/README.txt

@@ -0,0 +1,2 @@
+AIM-120D Missile (Air-to-Air) by https://free3d.com/3d-model/aim-120d-shell-air-to-air-20348.html
+License: License for personal use

Projekte/battleship/client/src/main/resources/Models/PATROL_BOAT/12219_boat_v2_L2.mtl

@@ -0,0 +1,104 @@
+# 3ds Max Wavefront OBJ Exporter v0.97b - (c)2007 guruware
+# File Created: 16.12.2011 14:18:52
+
+newmtl white
+	Ns 53.0000
+	Ni 1.5000
+	d 1.0000
+	Tr 0.0000
+	Tf 1.0000 1.0000 1.0000
+	illum 2
+	Ka 0.6667 0.6667 0.6667
+	Kd 0.6667 0.6667 0.6667
+	Ks 0.1800 0.1800 0.1800
+	Ke 0.0000 0.0000 0.0000
+
+newmtl boat_elements_black
+	Ns 55.0000
+	Ni 1.5000
+	d 1.0000
+	Tr 0.0000
+	Tf 1.0000 1.0000 1.0000
+	illum 2
+	Ka 0.0000 0.0000 0.0000
+	Kd 0.0000 0.0000 0.0000
+	Ks 0.3600 0.3600 0.3600
+	Ke 0.0000 0.0000 0.0000
+
+newmtl boat_glass
+	Ns 60.0000
+	Ni 7.0000
+	d 0.4000
+	Tr 0.6000
+	Tf 0.4000 0.4000 0.4000
+	illum 2
+	Ka 0.1059 0.1569 0.1451
+	Kd 0.1059 0.1569 0.1451
+	Ks 0.6750 0.6750 0.6750
+	Ke 0.0000 0.0000 0.0000
+
+newmtl boat_screw_hooks_bronze
+	Ns 80.0000
+	Ni 1.5000
+	d 1.0000
+	Tr 0.0000
+	Tf 1.0000 1.0000 1.0000
+	illum 2
+	Ka 0.2941 0.2157 0.0510
+	Kd 0.2941 0.2157 0.0510
+	Ks 0.7200 0.7200 0.7200
+	Ke 0.0000 0.0000 0.0000
+
+newmtl boat_silver
+	Ns 80.0000
+	Ni 1.5000
+	d 1.0000
+	Tr 0.0000
+	Tf 1.0000 1.0000 1.0000
+	illum 2
+	Ka 0.3333 0.3333 0.3333
+	Kd 0.3333 0.3333 0.3333
+	Ks 0.7200 0.7200 0.7200
+	Ke 0.0000 0.0000 0.0000
+
+newmtl boat_buffer
+	Ns 10.0000
+	Ni 1.5000
+	d 1.0000
+	Tr 0.0000
+	Tf 1.0000 1.0000 1.0000
+	illum 2
+	Ka 1.0000 1.0000 1.0000
+	Kd 1.0000 1.0000 1.0000
+	Ks 0.2700 0.2700 0.2700
+	Ke 0.0000 0.0000 0.0000
+	map_Ka boat_buffer_diffuse.jpg
+	map_Kd boat_buffer_diffuse.jpg
+
+newmtl boat_roof_accessory
+	Ns 15.0000
+	Ni 1.5000
+	d 1.0000
+	Tr 0.0000
+	Tf 1.0000 1.0000 1.0000
+	illum 2
+	Ka 1.0000 1.0000 1.0000
+	Kd 1.0000 1.0000 1.0000
+	Ks 0.3600 0.3600 0.3600
+	Ke 0.0000 0.0000 0.0000
+	map_Ka boat_roof_accessory_diffuse.jpg
+	map_Kd boat_roof_accessory_diffuse.jpg
+
+newmtl boat_body
+	Ns 55.0000
+	Ni 1.5000
+	d 1.0000
+	Tr 0.0000
+	Tf 1.0000 1.0000 1.0000
+	illum 2
+	Ka 1.0000 1.0000 1.0000
+	Kd 1.0000 1.0000 1.0000
+	Ks 0.3600 0.3600 0.3600
+	Ke 0.0000 0.0000 0.0000
+	map_Ka boat_body_diffuse.jpg
+	map_Kd boat_body_diffuse.jpg

Projekte/battleship/client/src/main/resources/Models/UBOAT/14084_WWII_Ship_German_Type_II_U-boat_v2_L1.mtl

@@ -0,0 +1,16 @@
+# 3ds Max Wavefront OBJ Exporter v0.97b - (c)2007 guruware
+# File Created: 29.03.2012 14:25:39
+
+newmtl default
+	Ns 35.0000
+	Ni 1.5000
+	d 1.0000
+	Tr 0.0000
+	Tf 1.0000 1.0000 1.0000
+	illum 2
+	Ka 1.0000 1.0000 1.0000
+	Kd 1.0000 1.0000 1.0000
+	Ks 0.5400 0.5400 0.5400
+	Ke 0.0000 0.0000 0.0000
+	map_Ka 14084_WWII_ship_German_Type_II_U-boat_diff.jpg
+	map_Kd 14084_WWII_ship_German_Type_II_U-boat_diff.jpg

Projekte/battleship/client/src/main/resources/Sound/Effects/README.txt

@@ -0,0 +1,2 @@
+Missile firing fl by NHMWretched (https://pixabay.com/sound-effects/missile-firing-fl-106655/)
+CCO License

Projekte/battleship/client/src/main/resources/Sound/Music/game/Credits.txt

@@ -0,0 +1 @@
+Aluminum | Roie Shpigler | https://artlist.io/royalty-free-music/song/aluminum/122360

Projekte/battleship/client/src/main/resources/Sound/Music/lose/Credits.txt

@@ -0,0 +1 @@
+A Touch of Dream | Max H. | https://artlist.io/royalty-free-music/song/a-touch-of-dream/126111

Projekte/battleship/client/src/main/resources/Sound/Music/menu/Crerdits.txt

@@ -0,0 +1,4 @@
+Epic Cinematic Trailer | ELITE by Alex-Productions | https://onsound.eu/
+Music promoted by https://www.chosic.com/free-music/all/
+Creative Commons CC BY 3.0
+https://creativecommons.org/licenses/by/3.0/

Projekte/battleship/client/src/main/resources/Sound/Music/victory/Crerdits.txt

@@ -0,0 +1 @@
+Victory march of Valor | Land_of_Books_YouTube | https://pixabay.com/users/land_of_books_youtube-7733644/s

Projekte/battleship/client/src/main/resources/Textures/Debris/README.txt

@@ -0,0 +1,2 @@
+Created using Metal Plates 13 from ambientCG.com,
+licensed under the Creative Commons CC0 1.0 Universal License.

Projekte/battleship/client/src/main/resources/Textures/Fire/README.txt

@@ -0,0 +1,2 @@
+https://www.rawpixel.com/image/13141087/png-fire-bonfire-illuminated-destruction-generated-image-rawpixel
+Licence: Free for personal use

Projekte/battleship/client/src/main/resources/Textures/Terrain/Water/README.txt

@@ -0,0 +1,4 @@
+based on:
+water 002
+by Katsukagi on 29/11/2018
+https://3dtextures.me/2018/11/29/water-002/

Projekte/battleship/client/src/main/resources/Textures/Terrain/Water/Water.j3m

@@ -0,0 +1,14 @@
+Material Water : Common/MatDefs/Light/Lighting.j3md {
+     MaterialParameters {
+         Shininess            : 64
+         DiffuseMap           : Repeat Textures/Terrain/Water/Water_002_COLOR.jpg
+         NormalMap            : Repeat Textures/Terrain/Water/Water_002_NORM.jpg
+         SpecularMap          : Repeat Textures/Terrain/Water/Water_002_ROUGH.jpg
+         ParallaxMap          : Repeat Textures/Terrain/Water/Water_002_DISP.png
+         // PackedNormalParallax : true
+         // UseMaterialColors : true
+         Ambient  : 0.5 0.5 0.5 1.0
+         Diffuse  : 1.0 1.0 1.0 1.0
+         Specular : 1.0 1.0 1.0 1.0
+     }
+}

Projekte/battleship/converter/build.gradle

@@ -0,0 +1,16 @@
+plugins {
+    id 'buildlogic.jme-application-conventions'
+}
+
+description = 'Battleship converter for resources'
+
+dependencies {
+    implementation libs.jme3.core
+
+    runtimeOnly libs.jme3.desktop
+    runtimeOnly libs.jme3.plugins
+}
+
+application {
+    mainClass = 'pp.battleship.exporter.ModelExporter'
+}

Projekte/battleship/converter/src/main/java/pp/battleship/exporter/ModelExporter.java

@@ -0,0 +1,64 @@
+
+
+package pp.battleship.exporter;
+
+import com.jme3.app.SimpleApplication;
+import com.jme3.export.JmeExporter;
+import com.jme3.export.binary.BinaryExporter;
+import com.jme3.scene.Spatial;
+import com.jme3.system.JmeContext;
+import com.jme3.util.TangentBinormalGenerator;
+
+import java.io.File;
+import java.io.IOException;
+import java.lang.System.Logger;
+import java.lang.System.Logger.Level;
+
+/**
+ * This class transforms models into j3o format.
+ */
+public class ModelExporter extends SimpleApplication {
+    private static final Logger LOGGER = System.getLogger(ModelExporter.class.getName());
+
+    /**
+     * The main method of the converter
+     *
+     * @param args input args
+     */
+    public static void main(String[] args) {
+        ModelExporter application = new ModelExporter();
+        application.start(JmeContext.Type.Headless);
+    }
+
+    /**
+     * Overrides  {@link com.jme3.app.SimpleApplication#simpleInitApp()}.
+     * It initializes a simple app by exporting robots and rocks.
+     */
+    @Override
+    public void simpleInitApp() {
+        export("Models/KingGeorgeV/King_George_V.obj", "Models/KingGeorgeV/KingGeorgeV.j3o"); //NON-NLS
+
+        stop();
+    }
+
+    /**
+     * Exports spatial into a file
+     *
+     * @param fileName       the file name of the model
+     * @param exportFileName the name of the file where the .j3o file is going to be stored
+     */
+    private void export(String fileName, String exportFileName) {
+        final File file = new File(exportFileName);
+        JmeExporter exporter = BinaryExporter.getInstance();
+        try {
+            final Spatial model = getAssetManager().loadModel(fileName);
+            TangentBinormalGenerator.generate(model);
+            exporter.save(model, file);
+        }
+        catch (IOException exception) {
+            LOGGER.log(Level.ERROR, "write to {0} failed", file); //NON-NLS
+            throw new RuntimeException(exception);
+        }
+        LOGGER.log(Level.INFO, "wrote file {0}", file); //NON-NLS
+    }
+}

Projekte/battleship/converter/src/main/resources/Models/KingGeorgeV/King_George_V.mtl

@@ -0,0 +1,18 @@
+# 3ds Max Wavefront OBJ Exporter v0.97b - (c)2007 guruware
+# File Created: 16.03.2012 14:15:53
+
+newmtl _King_George_V
+	Ns 60.0000
+	Ni 1.5000
+	d 1.0000
+	Tr 0.0000
+	Tf 1.0000 1.0000 1.0000
+	illum 2
+	Ka 1.0000 1.0000 1.0000
+	Kd 1.0000 1.0000 1.0000
+	Ks 0.4500 0.4500 0.4500
+	Ke 0.0000 0.0000 0.0000
+	map_Ka King_George_V.jpg
+	map_Kd King_George_V.jpg
+	map_bump King_George_V_bump.jpg
+	bump King_George_V_bump.jpg

Projekte/battleship/converter/src/main/resources/Models/KingGeorgeV/README.txt

@@ -0,0 +1,3 @@
+based on:
+https://free3d.com/3d-model/wwii-ship-uk-king-george-v-class-battleship-v1--185381.html
+License: Free Personal Use Only

Projekte/battleship/model/build.gradle

@@ -2,11 +2,11 @@
     id 'buildlogic.java-library-conventions'
 }
 
-description = 'MDGA common model'
+description = 'Battleship common model'
 
 dependencies {
+    api project(":common")
     api libs.jme3.networking
     implementation libs.gson
     testImplementation libs.mockito.core
-    runtimeOnly libs.slf4j.nop
-}
+}

Projekte/battleship/model/src/main/java/pp/battleship/BattleshipConfig.java

@@ -0,0 +1,96 @@
+package pp.battleship;
+
+import pp.util.config.Config;
+
+import java.util.Map;
+import java.util.TreeMap;
+
+import static java.lang.Math.max;
+
+/**
+ * Provides access to the configuration settings for the Battleship game.
+ * <p>
+ * This class allows for loading configuration settings from a properties file,
+ * including the server port, map dimensions, and the number of ships of various lengths.
+ * </p>
+ * <p>
+ * <b>Note:</b> Attributes of this class are not marked as {@code final} to allow
+ * for proper initialization when reading from a properties file.
+ * </p>
+ */
+public class BattleshipConfig extends Config {
+
+    /**
+     * The default port number for the Battleship server.
+     */
+    @Property("port")
+    private int port = 1234;
+
+    /**
+     * The width of the game map in terms of grid units.
+     */
+    @Property("map.width")
+    private int mapWidth = 10;
+
+    /**
+     * The height of the game map in terms of grid units.
+     */
+    @Property("map.height")
+    private int mapHeight = 10;
+
+    /**
+     * An array representing the number of ships available for each length.
+     * The index corresponds to the ship length minus one, and the value at each index
+     * is the number of ships of that length.
+     */
+    @Property("ship.nums")
+    private int[] shipNums = {4, 3, 2, 1};
+
+    /**
+     * Creates an instance of {@code BattleshipConfig} with default settings.
+     */
+    public BattleshipConfig() {
+        // Default constructor
+    }
+
+    /**
+     * Returns the port number configured for the Battleship server.
+     *
+     * @return the port number
+     */
+    public int getPort() {
+        return port;
+    }
+
+    /**
+     * Returns the width of the game map. The width is guaranteed to be at least 2 units.
+     *
+     * @return the width of the game map
+     */
+    public int getMapWidth() {
+        return max(mapWidth, 2);
+    }
+
+    /**
+     * Returns the height of the game map. The height is guaranteed to be at least 2 units.
+     *
+     * @return the height of the game map
+     */
+    public int getMapHeight() {
+        return max(mapHeight, 2);
+    }
+
+    /**
+     * Returns a map representing the number of ships for each length.
+     * The keys are ship lengths, and the values are the corresponding number of ships.
+     *
+     * @return a map of ship lengths to the number of ships
+     */
+    public Map<Integer, Integer> getShipNums() {
+        final TreeMap<Integer, Integer> ships = new TreeMap<>();
+        for (int i = 0; i < shipNums.length; i++)
+            if (shipNums[i] > 0)
+                ships.put(i + 1, shipNums[i]);
+        return ships;
+    }
+}

Projekte/battleship/model/src/main/java/pp/battleship/Resources.java

@@ -0,0 +1,33 @@
+package pp.battleship;
+
+import java.util.ResourceBundle;
+
+/**
+ * Provides access to the resource bundle of the game.
+ *
+ * @see #BUNDLE
+ */
+public class Resources {
+    /**
+     * The resource bundle for the Battleship game.
+     */
+    public static final ResourceBundle BUNDLE = ResourceBundle.getBundle("battleship"); //NON-NLS
+
+    /**
+     * Gets a string for the given key from the resource bundle in {@linkplain #BUNDLE}.
+     *
+     * @param key the key for the desired string
+     * @return the string for the given key
+     * @throws NullPointerException               if {@code key} is {@code null}
+     * @throws java.util.MissingResourceException if no object for the given key can be found
+     * @throws ClassCastException                 if the object found for the given key is not a string
+     */
+    public static String lookup(String key) {
+        return BUNDLE.getString(key);
+    }
+
+    /**
+     * Private constructor to prevent instantiation.
+     */
+    private Resources() { /* do not instantiate */ }
+}

Projekte/battleship/model/src/main/java/pp/battleship/game/client/AnimationState.java

@@ -0,0 +1,114 @@
+package pp.battleship.game.client;
+
+import pp.battleship.message.client.EndAnimationMessage;
+import pp.battleship.message.server.EffectMessage;
+import pp.battleship.message.server.SwitchToBattleState;
+import pp.battleship.model.IntPoint;
+import pp.battleship.model.Shell;
+import pp.battleship.model.ShipMap;
+import pp.battleship.notification.Music;
+import pp.battleship.notification.Sound;
+
+import java.lang.System.Logger.Level;
+
+/**
+ * Represents the state in which the animation is played
+ */
+public class AnimationState extends ClientState {
+
+    private boolean myTurn;
+
+    /**
+     * Constructor for the AnimationState class
+     *
+     * @param logic    the client logic
+     * @param turn     a boolean containing if it's the client's turn
+     * @param position the position a Shell gets created
+     */
+    public AnimationState(ClientGameLogic logic, boolean turn, IntPoint position) {
+        super(logic);
+        logic.playMusic(Music.GAME_THEME);
+        myTurn = turn;
+        if (myTurn) {
+            logic.getOpponentMap().add(new Shell(position));
+        }
+        else {
+            logic.getOwnMap().add(new Shell(position));
+        }
+    }
+
+    /**
+     * Makes sure the client renders the correct view
+     *
+     * @return true
+     */
+    @Override
+    boolean showBattle() {
+        return true;
+    }
+
+    /**
+     * Reports the effect of a shot based on the server message.
+     *
+     * @param msg the message containing the effect of the shot
+     */
+    @Override
+    public void receivedEffect(EffectMessage msg) {
+        ClientGameLogic.LOGGER.log(Level.INFO, "report effect: {0}", msg); //NON-NLS
+        playSound(msg);
+        myTurn = msg.isMyTurn();
+        logic.setInfoText(msg.getInfoTextKey());
+        affectedMap(msg).add(msg.getShot());
+        if (destroyedOpponentShip(msg))
+            logic.getOpponentMap().add(msg.getDestroyedShip());
+        if (msg.isGameOver()) {
+            msg.getRemainingOpponentShips().forEach(logic.getOpponentMap()::add);
+            logic.setState(new GameOverState(logic, msg.isGameLost()));
+        }
+    }
+
+    /**
+     * Sets the client back to the battle state
+     *
+     * @param msg the received SwitchToBattleState message
+     */
+    @Override
+    public void receivedSwitchToBattleState(SwitchToBattleState msg) {
+        logic.setState(new BattleState(logic, msg.getTurn()));
+    }
+
+    /**
+     * Determines which map (own or opponent's) should be affected by the shot based on the message.
+     *
+     * @param msg the effect message received from the server
+     * @return the map (either the opponent's or player's own map) that is affected by the shot
+     */
+    private ShipMap affectedMap(EffectMessage msg) {
+        return msg.isOwnShot() ? logic.getOpponentMap() : logic.getOwnMap();
+    }
+
+    /**
+     * Checks if the opponent's ship was destroyed by the player's shot.
+     *
+     * @param msg the effect message received from the server
+     * @return true if the shot destroyed an opponent's ship, false otherwise
+     */
+    private boolean destroyedOpponentShip(EffectMessage msg) {
+        return msg.getDestroyedShip() != null && msg.isOwnShot();
+    }
+
+    /**
+     * Plays a sound based on the outcome of the shot. Different sounds are played for a miss, hit,
+     * or destruction of a ship.
+     *
+     * @param msg the effect message containing the result of the shot
+     */
+    private void playSound(EffectMessage msg) {
+        if (!msg.getShot().isHit())
+            logic.playSound(Sound.SPLASH);
+        else if (msg.getDestroyedShip() == null)
+            logic.playSound(Sound.EXPLOSION);
+        else
+            logic.playSound(Sound.DESTROYED_SHIP);
+    }
+}

Projekte/battleship/model/src/main/java/pp/battleship/game/client/BattleState.java

@@ -0,0 +1,66 @@
+
+
+package pp.battleship.game.client;
+
+import pp.battleship.message.client.ShootMessage;
+import pp.battleship.message.server.EffectMessage;
+import pp.battleship.message.server.StartAnimationMessage;
+import pp.battleship.model.IntPoint;
+import pp.battleship.model.ShipMap;
+import pp.battleship.notification.Music;
+import pp.battleship.notification.Sound;
+
+import java.lang.System.Logger.Level;
+
+/**
+ * Represents the state of the client where players take turns to attack each other's ships.
+ */
+class BattleState extends ClientState {
+    private boolean myTurn;
+
+    /**
+     * Constructs a new instance of {@link BattleState}.
+     *
+     * @param logic  the game logic
+     * @param myTurn true if it is my turn
+     */
+    public BattleState(ClientGameLogic logic, boolean myTurn) {
+        super(logic);
+        logic.playMusic(Music.GAME_THEME);
+        this.myTurn = myTurn;
+    }
+
+    /**
+     * Makes sure the client renders the correct view
+     *
+     * @return true
+     */
+    @Override
+    public boolean showBattle() {
+        return true;
+    }
+
+    /**
+     * Triggers a shoot event if it's client's turn
+     *
+     * @param pos the position where the click occurred
+     */
+    @Override
+    public void clickOpponentMap(IntPoint pos) {
+        if (!myTurn)
+            logic.setInfoText("wait.its.not.your.turn");
+        else if (logic.getOpponentMap().isValid(pos))
+            logic.send(new ShootMessage(pos));
+    }
+
+    /**
+     * Triggers an animation if StartAnimationMessage is received
+     *
+     * @param msg the received Startanimation message
+     */
+    @Override
+    public void receivedStartAnimation(StartAnimationMessage msg) {
+        logic.setState(new AnimationState(logic, msg.isMyTurn(), msg.getPosition()));
+        logic.playSound(Sound.MISSILE_LAUNCH);
+    }
+}

Projekte/battleship/model/src/main/java/pp/battleship/game/client/BattleshipClient.java

@@ -0,0 +1,33 @@
+
+
+package pp.battleship.game.client;
+
+import pp.battleship.game.singlemode.BattleshipClientConfig;
+
+/**
+ * Interface representing a Battleship client.
+ * Provides methods to access game logic, configuration, and to enqueue tasks.
+ */
+public interface BattleshipClient {
+
+    /**
+     * Returns the game logic associated with this client.
+     *
+     * @return the ClientGameLogic instance
+     */
+    ClientGameLogic getGameLogic();
+
+    /**
+     * Returns the configuration associated with this client.
+     *
+     * @return the BattleshipConfig instance
+     */
+    BattleshipClientConfig getConfig();
+
+    /**
+     * Enqueues a task to be executed by the client.
+     *
+     * @param runnable the task to be executed
+     */
+    void enqueue(Runnable runnable);
+}

Projekte/battleship/model/src/main/java/pp/battleship/game/client/ClientGameLogic.java

@@ -0,0 +1,383 @@
+
+
+package pp.battleship.game.client;
+
+import pp.battleship.message.client.ClientMessage;
+import pp.battleship.message.server.EffectMessage;
+import pp.battleship.message.server.GameDetails;
+import pp.battleship.message.server.ServerInterpreter;
+import pp.battleship.message.server.StartAnimationMessage;
+import pp.battleship.message.server.StartBattleMessage;
+import pp.battleship.message.server.SwitchToBattleState;
+import pp.battleship.model.IntPoint;
+import pp.battleship.model.ShipMap;
+import pp.battleship.model.dto.ShipMapDTO;
+import pp.battleship.notification.ClientStateEvent;
+import pp.battleship.notification.GameEvent;
+import pp.battleship.notification.GameEventBroker;
+import pp.battleship.notification.GameEventListener;
+import pp.battleship.notification.InfoTextEvent;
+import pp.battleship.notification.Music;
+import pp.battleship.notification.MusicEvent;
+import pp.battleship.notification.Sound;
+import pp.battleship.notification.SoundEvent;
+
+import java.io.File;
+import java.io.IOException;
+import java.lang.System.Logger;
+import java.lang.System.Logger.Level;
+import java.util.ArrayList;
+import java.util.List;
+
+import static java.lang.Math.max;
+
+/**
+ * Controls the client-side game logic for Battleship.
+ * Manages the player's ship placement, interactions with the map, and response to server messages.
+ */
+public class ClientGameLogic implements ServerInterpreter, GameEventBroker {
+    static final Logger LOGGER = System.getLogger(ClientGameLogic.class.getName());
+    private final ClientSender clientSender;
+    private final List<GameEventListener> listeners = new ArrayList<>();
+    private GameDetails details;
+    private ShipMap ownMap;
+    private ShipMap harbor;
+    private ShipMap opponentMap;
+    private ClientState state = new InitialState(this);
+
+    /**
+     * Constructs a ClientGameLogic with the specified sender object.
+     *
+     * @param clientSender the object used to send messages to the server
+     */
+    public ClientGameLogic(ClientSender clientSender) {
+        this.clientSender = clientSender;
+    }
+
+    /**
+     * Returns the current state of the game logic.
+     */
+    ClientState getState() {
+        return state;
+    }
+
+    /**
+     * Sets the current state of the game logic.
+     *
+     * @param newState the new state to be set
+     */
+    void setState(ClientState newState) {
+        LOGGER.log(Level.DEBUG, "state transition {0} --> {1}", state.getName(), newState.getName()); //NON-NLS
+        state = newState;
+        notifyListeners(new ClientStateEvent());
+        state.entry();
+    }
+
+    /**
+     * Returns the game details.
+     *
+     * @return the game details
+     */
+    GameDetails getDetails() {
+        return details;
+    }
+
+    /**
+     * Returns the player's own map.
+     *
+     * @return the player's own map
+     */
+    public ShipMap getOwnMap() {
+        return ownMap;
+    }
+
+    /**
+     * Returns the opponent's map.
+     *
+     * @return the opponent's map
+     */
+    public ShipMap getOpponentMap() {
+        return opponentMap;
+    }
+
+    /**
+     * Returns the harbor map.
+     *
+     * @return the harbor map
+     */
+    public ShipMap getHarbor() {
+        return harbor;
+    }
+
+    /**
+     * Checks if the editor should be shown.
+     *
+     * @return true if the editor should be shown, false otherwise
+     */
+    public boolean showEditor() {
+        return state.showEditor();
+    }
+
+    /**
+     * Checks if the battle state should be shown.
+     *
+     * @return true if the battle state should be shown, false otherwise
+     */
+    public boolean showBattle() {
+        return state.showBattle();
+    }
+
+    /**
+     * Sets the game details provided by the server.
+     *
+     * @param details the game details including map size and ships
+     */
+    @Override
+    public void received(GameDetails details) {
+        state.receivedGameDetails(details);
+    }
+
+    /**
+     * Moves the preview ship to the specified position.
+     *
+     * @param pos the new position for the preview ship
+     */
+    public void movePreview(IntPoint pos) {
+        state.movePreview(pos);
+    }
+
+    /**
+     * Handles a click on the player's own map.
+     *
+     * @param pos the position where the click occurred
+     */
+    public void clickOwnMap(IntPoint pos) {
+        state.clickOwnMap(pos);
+    }
+
+    /**
+     * Handles a click on the harbor map.
+     *
+     * @param pos the position where the click occurred
+     */
+    public void clickHarbor(IntPoint pos) {
+        state.clickHarbor(pos);
+    }
+
+    /**
+     * Handles a click on the opponent's map.
+     *
+     * @param pos the position where the click occurred
+     */
+    public void clickOpponentMap(IntPoint pos) {
+        state.clickOpponentMap(pos);
+    }
+
+    /**
+     * Rotates the preview ship.
+     */
+    public void rotateShip() {
+        state.rotateShip();
+    }
+
+    /**
+     * Marks the player's map as finished.
+     */
+    public void mapFinished() {
+        state.mapFinished();
+    }
+
+    /**
+     * Checks if the player's map is complete (i.e., all ships are placed).
+     *
+     * @return true if all ships are placed, false otherwise
+     */
+    public boolean isMapComplete() {
+        return state.isMapComplete();
+    }
+
+    /**
+     * Checks if there is currently a preview ship.
+     *
+     * @return true if there is currently a preview ship, false otherwise
+     */
+    public boolean movingShip() {
+        return state.movingShip();
+    }
+
+    /**
+     * Starts the battle based on the server message.
+     *
+     * @param msg the message indicating whose turn it is to shoot
+     */
+    @Override
+    public void received(StartBattleMessage msg) {
+        state.receivedStartBattle(msg);
+    }
+
+    /**
+     * Reports the effect of a shot based on the server message.
+     *
+     * @param msg the message containing the effect of the shot
+     */
+    @Override
+    public void received(EffectMessage msg) {
+        state.receivedEffect(msg);
+    }
+
+    /**
+     * Reports that client should play an animation
+     *
+     * @param msg
+     */
+    @Override
+    public void received(StartAnimationMessage msg) {
+        state.receivedStartAnimation(msg);
+    }
+
+    /**
+     * Reports that client should switch to the battle state
+     *
+     * @param msg
+     */
+    @Override
+    public void received(SwitchToBattleState msg) {
+        state.receivedSwitchToBattleState(msg);
+    }
+
+    /**
+     * Initializes the player's own map, opponent's map, and harbor based on the game details.
+     *
+     * @param details the game details including map size and ships
+     */
+    void initializeMaps(GameDetails details) {
+        this.details = details;
+        final int numShips = details.getShipNums().values().stream().mapToInt(Integer::intValue).sum();
+        final int maxLength = details.getShipNums().keySet().stream().mapToInt(Integer::intValue).max().orElse(2);
+        ownMap = new ShipMap(details.getWidth(), details.getHeight(), this);
+        opponentMap = new ShipMap(details.getWidth(), details.getHeight(), this);
+        harbor = new ShipMap(max(maxLength, 2), max(numShips, details.getHeight()), this);
+    }
+
+    /**
+     * Sets the informational text to be displayed to the player.
+     *
+     * @param key the key for the info text
+     */
+    void setInfoText(String key) {
+        notifyListeners(new InfoTextEvent(key));
+    }
+
+    /**
+     * Emits an event to play the specified sound.
+     *
+     * @param sound the sound to be played.
+     */
+    public void playSound(Sound sound) {
+        notifyListeners(new SoundEvent(sound));
+    }
+
+    /**
+     * Loads a map from the specified file.
+     *
+     * @param file the file to load the map from
+     * @throws IOException if an I/O error occurs
+     */
+    public void loadMap(File file) throws IOException {
+        state.loadMap(file);
+    }
+
+    /**
+     * Checks if the player's own map may be loaded from a file.
+     *
+     * @return true if the own map may be loaded from file, false otherwise
+     */
+    public boolean mayLoadMap() {
+        return state.mayLoadMap();
+    }
+
+    /**
+     * Checks if the player's own map may be saved to a file.
+     *
+     * @return true if the own map may be saved to file, false otherwise
+     */
+    public boolean maySaveMap() {
+        return state.maySaveMap();
+    }
+
+    /**
+     * Saves the player's own map to the specified file.
+     *
+     * @param file the file to save the map to
+     * @throws IOException if the map cannot be saved in the current state
+     */
+    public void saveMap(File file) throws IOException {
+        if (ownMap != null && maySaveMap())
+            new ShipMapDTO(ownMap).saveTo(file);
+        else
+            throw new IOException("You are not allowed to save the map in this state of the game");
+    }
+
+    /**
+     * Sends a message to the server.
+     *
+     * @param msg the message to be sent
+     */
+    public void send(ClientMessage msg) {
+        if (clientSender == null)
+            LOGGER.log(Level.ERROR, "trying to send {0} with sender==null", msg); //NON-NLS
+        else
+            clientSender.send(msg);
+    }
+
+    /**
+     * Adds a listener to receive game events.
+     *
+     * @param listener the listener to add
+     */
+    public synchronized void addListener(GameEventListener listener) {
+        listeners.add(listener);
+    }
+
+    /**
+     * Removes a listener from receiving game events.
+     *
+     * @param listener the listener to remove
+     */
+    public synchronized void removeListener(GameEventListener listener) {
+        listeners.remove(listener);
+    }
+
+    /**
+     * Notifies all listeners of a game event.
+     *
+     * @param event the game event to notify listeners of
+     */
+    @Override
+    public void notifyListeners(GameEvent event) {
+        final List<GameEventListener> copy;
+        synchronized (this) {
+            copy = new ArrayList<>(listeners);
+        }
+        for (GameEventListener listener : copy)
+            event.notifyListener(listener);
+    }
+
+    /**
+     * Called once per frame by the update loop.
+     *
+     * @param delta time in seconds since the last update call
+     */
+    public void update(float delta) {
+        state.update(delta);
+    }
+
+    /**
+     * Triggers an event to play specified music
+     *
+     * @param music the music to be played
+     */
+    public void playMusic(Music music) {
+        notifyListeners(new MusicEvent(music));
+    }
+}

Projekte/battleship/model/src/main/java/pp/battleship/game/client/ClientSender.java

@@ -0,0 +1,17 @@
+
+
+package pp.battleship.game.client;
+
+import pp.battleship.message.client.ClientMessage;
+
+/**
+ * Interface for sending messages to the server.
+ */
+public interface ClientSender {
+    /**
+     * Send the specified message to the server.
+     *
+     * @param message the message
+     */
+    void send(ClientMessage message);
+}

Projekte/battleship/model/src/main/java/pp/battleship/game/client/ClientState.java

@@ -0,0 +1,217 @@
+
+
+package pp.battleship.game.client;
+
+import pp.battleship.message.server.EffectMessage;
+import pp.battleship.message.server.GameDetails;
+import pp.battleship.message.server.StartAnimationMessage;
+import pp.battleship.message.server.StartBattleMessage;
+import pp.battleship.message.server.SwitchToBattleState;
+import pp.battleship.model.IntPoint;
+
+import java.io.File;
+import java.io.IOException;
+import java.lang.System.Logger.Level;
+
+/**
+ * Defines the behavior and state transitions for the client-side game logic.
+ * Different states of the game logic implement this interface to handle various game events and actions.
+ */
+abstract class ClientState {
+    /**
+     * The game logic object.
+     */
+    final ClientGameLogic logic;
+
+    /**
+     * Constructs a client state of the specified game logic.
+     *
+     * @param logic the game logic
+     */
+    ClientState(ClientGameLogic logic) {
+        this.logic = logic;
+    }
+
+    /**
+     * Method to be overridden by subclasses for post-transition initialization.
+     * By default, it does nothing, but it can be overridden in derived states.
+     */
+    void entry() {
+        // Default implementation does nothing
+    }
+
+    /**
+     * Returns the name of the current state.
+     *
+     * @return the name of the current state
+     */
+    String getName() {
+        return getClass().getSimpleName();
+    }
+
+    /**
+     * Checks if the editor should be shown.
+     *
+     * @return true if the editor should be shown, false otherwise
+     */
+    boolean showEditor() {
+        return false;
+    }
+
+    /**
+     * Checks if the battle state should be shown.
+     *
+     * @return true if the battle state should be shown, false otherwise
+     */
+    boolean showBattle() {
+        return false;
+    }
+
+    /**
+     * Checks if the player's map is complete (i.e., all ships are placed).
+     *
+     * @return true if all ships are placed, false otherwise
+     */
+    boolean isMapComplete() {
+        return false;
+    }
+
+    /**
+     * Checks if there is currently a preview ship.
+     *
+     * @return true if there is currently a preview ship, false otherwise
+     */
+    boolean movingShip() {
+        return false;
+    }
+
+    /**
+     * Handles a click on the player's own map.
+     *
+     * @param pos the position where the click occurred
+     */
+    void clickOwnMap(IntPoint pos) {
+        ClientGameLogic.LOGGER.log(Level.DEBUG, "clickOwnMap has no effect in {0}", getName()); //NON-NLS
+    }
+
+    /**
+     * Handles a click on the harbor map.
+     *
+     * @param pos the position where the click occurred
+     */
+    void clickHarbor(IntPoint pos) {
+        ClientGameLogic.LOGGER.log(Level.DEBUG, "clickHarbor has no effect in {0}", getName()); //NON-NLS
+    }
+
+    /**
+     * Handles a click on the opponent's map.
+     *
+     * @param pos the position where the click occurred
+     */
+    void clickOpponentMap(IntPoint pos) {
+        ClientGameLogic.LOGGER.log(Level.DEBUG, "clickOpponentMap has no effect in {0}", getName()); //NON-NLS
+    }
+
+    /**
+     * Moves the preview ship to the specified position.
+     *
+     * @param pos the new position for the preview ship
+     */
+    void movePreview(IntPoint pos) {
+        ClientGameLogic.LOGGER.log(Level.DEBUG, "movePreview has no effect in {0}", getName()); //NON-NLS
+    }
+
+    /**
+     * Rotates the preview ship.
+     */
+    void rotateShip() {
+        ClientGameLogic.LOGGER.log(Level.DEBUG, "rotateShip has no effect in {0}", getName()); //NON-NLS
+    }
+
+    /**
+     * The user has marked the map as finished.
+     */
+    void mapFinished() {
+        ClientGameLogic.LOGGER.log(Level.ERROR, "mapFinished not allowed in {0}", getName()); //NON-NLS
+    }
+
+    /**
+     * Sets the game details provided by the server.
+     *
+     * @param details the game details including map size and ships
+     */
+    void receivedGameDetails(GameDetails details) {
+        ClientGameLogic.LOGGER.log(Level.ERROR, "receivedGameDetails not allowed in {0}", getName()); //NON-NLS
+    }
+
+    /**
+     * Starts the battle based on the server message.
+     *
+     * @param msg the message indicating whose turn it is to shoot
+     */
+    void receivedStartBattle(StartBattleMessage msg) {
+        ClientGameLogic.LOGGER.log(Level.ERROR, "receivedStartBattle not allowed in {0}", getName()); //NON-NLS
+    }
+
+    /**
+     * Reports the effect of a shot based on the server message.
+     *
+     * @param msg the message containing the effect of the shot
+     */
+    void receivedEffect(EffectMessage msg) {
+        ClientGameLogic.LOGGER.log(Level.ERROR, "receivedEffect not allowed in {0}", getName()); //NON-NLS
+    }
+
+    /**
+     * Reports that client should switch to battle state
+     *
+     * @param msg the received SwitchToBattleState message
+     */
+    void receivedSwitchToBattleState(SwitchToBattleState msg) {
+        ClientGameLogic.LOGGER.log(Level.ERROR, "receivedSwitchToBattleState not allowed in {0}", getName());
+    }
+
+    /**
+     * Reports that the client should start an animation
+     *
+     * @param msg the received StartAnimation message
+     */
+    void receivedStartAnimation(StartAnimationMessage msg) {
+        ClientGameLogic.LOGGER.log(Level.ERROR, "receivedStartAnimation not allowed in {0}", getName());
+    }
+
+    /**
+     * Loads a map from the specified file.
+     *
+     * @param file the file to load the map from
+     * @throws IOException if the map cannot be loaded in the current state
+     */
+    void loadMap(File file) throws IOException {
+        throw new IOException("You are not allowed to load a map in this state of the game");
+    }
+
+    /**
+     * Checks if the own map may be loaded from file.
+     *
+     * @return true if the own map may be loaded from file, false otherwise
+     */
+    boolean mayLoadMap() {
+        return false;
+    }
+
+    /**
+     * Checks if the own map may be saved to file.
+     *
+     * @return true if the own map may be saved to file, false otherwise
+     */
+    boolean maySaveMap() {
+        return true;
+    }
+
+    /**
+     * Called once per frame by the update loop if this state is active.
+     *
+     * @param delta time in seconds since the last update call
+     */
+    void update(float delta) { /* do nothing by default */ }
+}

Projekte/battleship/model/src/main/java/pp/battleship/game/client/EditorState.java

@@ -0,0 +1,301 @@
+
+
+package pp.battleship.game.client;
+
+import pp.battleship.message.client.MapMessage;
+import pp.battleship.model.Battleship;
+import pp.battleship.model.IntPoint;
+import pp.battleship.model.ShipMap;
+import pp.battleship.model.dto.ShipMapDTO;
+
+import java.io.File;
+import java.io.IOException;
+import java.lang.System.Logger.Level;
+import java.util.Arrays;
+import java.util.List;
+
+import static pp.battleship.Resources.lookup;
+import static pp.battleship.game.client.ClientGameLogic.LOGGER;
+import static pp.battleship.model.Battleship.Status.INVALID_PREVIEW;
+import static pp.battleship.model.Battleship.Status.NORMAL;
+import static pp.battleship.model.Battleship.Status.VALID_PREVIEW;
+import static pp.battleship.model.Rotation.RIGHT;
+
+/**
+ * Represents the state of the client setting up the ship map.
+ */
+class EditorState extends ClientState {
+    private Battleship preview;
+    private Battleship selectedInHarbor;
+
+    /**
+     * Constructs a new EditorState with the specified ClientGameLogic.
+     *
+     * @param logic the ClientGameLogic associated with this state
+     */
+    public EditorState(ClientGameLogic logic) {
+        super(logic);
+    }
+
+    /**
+     * Returns true to indicate that the editor should be shown.
+     *
+     * @return true if the editor should be shown
+     */
+    @Override
+    public boolean showEditor() {
+        return true;
+    }
+
+    /**
+     * Moves the preview ship to the specified position.
+     *
+     * @param pos the new position for the preview ship
+     */
+    @Override
+    public void movePreview(IntPoint pos) {
+        LOGGER.log(Level.DEBUG, "move preview to {0}", pos); //NON-NLS
+        if (preview == null || !ownMap().isValid(pos)) return;
+        preview.moveTo(pos);
+        setPreviewStatus(preview);
+        ownMap().remove(preview);
+        ownMap().add(preview);
+    }
+
+    /**
+     * Handles a click on the player's own map.
+     *
+     * @param pos the position where the click occurred
+     */
+    @Override
+    public void clickOwnMap(IntPoint pos) {
+        LOGGER.log(Level.DEBUG, "click at {0} in own map", pos); //NON-NLS
+        if (!ownMap().isValid(pos)) return;
+        if (preview == null)
+            modifyShip(pos);
+        else
+            placeShip(pos);
+    }
+
+    /**
+     * Modifies a ship on the map at the specified position.
+     *
+     * @param cursor the position of the ship to modify
+     */
+    private void modifyShip(IntPoint cursor) {
+        preview = ownMap().findShipAt(cursor);
+        if (preview == null)
+            return;
+        preview.moveTo(cursor);
+        setPreviewStatus(preview);
+        ownMap().remove(preview);
+        ownMap().add(preview);
+        selectedInHarbor = new Battleship(preview.getLength(), 0, freeY(), RIGHT);
+        selectedInHarbor.setStatus(VALID_PREVIEW);
+        harbor().add(selectedInHarbor);
+    }
+
+    /**
+     * Places the preview ship at the specified position.
+     *
+     * @param cursor the position to place the ship
+     */
+    private void placeShip(IntPoint cursor) {
+        ownMap().remove(preview);
+        preview.moveTo(cursor);
+        if (ownMap().isValid(preview)) {
+            preview.setStatus(NORMAL);
+            ownMap().add(preview);
+            harbor().remove(selectedInHarbor);
+            preview = null;
+            selectedInHarbor = null;
+        }
+        else {
+            preview.setStatus(INVALID_PREVIEW);
+            ownMap().add(preview);
+        }
+    }
+
+    /**
+     * Handles a click on the harbor map.
+     *
+     * @param pos the position where the click occurred
+     */
+    @Override
+    public void clickHarbor(IntPoint pos) {
+        LOGGER.log(Level.DEBUG, "click at {0} in harbor", pos); //NON-NLS
+        if (!harbor().isValid(pos)) return;
+        final Battleship shipAtCursor = harbor().findShipAt(pos);
+        if (preview != null) {
+            ownMap().remove(preview);
+            selectedInHarbor.setStatus(NORMAL);
+            harbor().remove(selectedInHarbor);
+            harbor().add(selectedInHarbor);
+            preview = null;
+            selectedInHarbor = null;
+        }
+        else if (shipAtCursor != null) {
+            selectedInHarbor = shipAtCursor;
+            selectedInHarbor.setStatus(VALID_PREVIEW);
+            harbor().remove(selectedInHarbor);
+            harbor().add(selectedInHarbor);
+            preview = new Battleship(selectedInHarbor.getLength(), 0, 0, RIGHT);
+            setPreviewStatus(preview);
+            ownMap().add(preview);
+        }
+    }
+
+    /**
+     * Rotates the preview ship.
+     */
+    @Override
+    public void rotateShip() {
+        LOGGER.log(Level.DEBUG, "pushed rotate"); //NON-NLS
+        if (preview == null) return;
+        preview.rotated();
+        ownMap().remove(preview);
+        ownMap().add(preview);
+    }
+
+    /**
+     * Finds a free position in the harbor to place a ship.
+     *
+     * @return the y coordinate of a free position in the harbor
+     */
+    private int freeY() {
+        for (int i = 0; i < harbor().getHeight(); i++)
+            if (harbor().findShipAt(0, i) == null)
+                return i;
+        throw new RuntimeException("Cannot find a free slot in harbor");
+    }
+
+    /**
+     * Updates the status of the specified ship based on its validity.
+     */
+    private void setPreviewStatus(Battleship ship) {
+        ship.setStatus(ownMap().isValid(ship) ? VALID_PREVIEW : INVALID_PREVIEW);
+    }
+
+    /**
+     * The user has marked the map as finished.
+     */
+    @Override
+    public void mapFinished() {
+        if (!harbor().getItems().isEmpty()) return;
+        logic.send(new MapMessage(ownMap().getRemainingShips()));
+        logic.setInfoText("wait.for.opponent");
+        logic.setState(new WaitState(logic));
+    }
+
+    /**
+     * Checks if the player's map is complete (i.e., all ships are placed).
+     *
+     * @return true if all ships are placed, false otherwise
+     */
+    @Override
+    public boolean isMapComplete() {
+        return harbor().getItems().isEmpty();
+    }
+
+    /**
+     * Checks if there is currently a preview ship.
+     *
+     * @return true if there is currently a preview ship, false otherwise
+     */
+    @Override
+    public boolean movingShip() {
+        return preview != null;
+    }
+
+    /**
+     * Returns the player's own map.
+     *
+     * @return the player's own map
+     */
+    private ShipMap ownMap() {
+        return logic.getOwnMap();
+    }
+
+    /**
+     * Returns the harbor map.
+     *
+     * @return the harbor map
+     */
+    private ShipMap harbor() {
+        return logic.getHarbor();
+    }
+
+    /**
+     * Loads a map from the specified file.
+     *
+     * @param file the file to load the map from
+     * @throws IOException if the map cannot be loaded
+     */
+    @Override
+    public void loadMap(File file) throws IOException {
+        final ShipMapDTO dto = ShipMapDTO.loadFrom(file);
+        if (!dto.fits(logic.getDetails()))
+            throw new IOException(lookup("map.doesnt.fit"));
+        else if (!checkMapToLoad(dto)) {
+            throw new IOException(lookup("ships.dont.fit.the.map"));
+        }
+        ownMap().clear();
+        dto.getShips().forEach(ownMap()::add);
+        harbor().clear();
+        preview = null;
+        selectedInHarbor = null;
+    }
+
+    /**
+     * Checks if the provided map meets the requirements
+     *
+     * @param dto the data transfer object to check
+     * @return boolean if the map meets the requirements
+     */
+    private boolean checkMapToLoad(ShipMapDTO dto) {
+        int mapWidth = dto.getWidth();
+        int mapHeight = dto.getHeight();
+
+        // check if ship is out of bounds
+        for (int i = 0; i < dto.getShips().size(); i++) {
+            Battleship battleship = dto.getShips().get(i);
+            if (battleship.getMaxX() >= mapWidth || battleship.getMinX() < 0 || battleship.getMaxY() >= mapHeight || battleship.getMinY() < 0) {
+                LOGGER.log(Level.ERROR, "Ship is out of bounds ({0})", battleship.toString());
+                return false;
+            }
+        }
+
+        // check if ships overlap
+        List<Battleship> ships = dto.getShips();
+        for (Battleship ship : ships) {
+            for (Battleship compareShip : ships) {
+                if (!(ship == compareShip)) {
+                    if (ship.collidesWith(compareShip)) {
+                        return false;
+                    }
+                }
+            }
+        }
+        return true;
+    }
+
+    /**
+     * Checks if the player's own map may be loaded from a file.
+     *
+     * @return true if the own map may be loaded from file, false otherwise
+     */
+    @Override
+    public boolean mayLoadMap() {
+        return true;
+    }
+
+    /**
+     * Checks if the player's own map may be saved to a file.
+     *
+     * @return true if the own map may be saved to file, false otherwise
+     */
+    @Override
+    public boolean maySaveMap() {
+        return harbor().getItems().isEmpty();
+    }
+}

Projekte/battleship/model/src/main/java/pp/battleship/game/client/GameOverState.java

@@ -0,0 +1,35 @@
+
+
+package pp.battleship.game.client;
+
+import pp.battleship.notification.Music;
+
+/**
+ * Represents the state of the client when the game is over.
+ */
+class GameOverState extends ClientState {
+    /**
+     * Constructs a new instance of GameOverState.
+     *
+     * @param logic the client game logic
+     */
+    GameOverState(ClientGameLogic logic, boolean loser) {
+        super(logic);
+        if (loser) {
+            logic.playMusic(Music.LOSE_THEME);
+        }
+        else {
+            logic.playMusic(Music.VICTORY_THEME);
+        }
+    }
+
+    /**
+     * Returns true to indicate that the battle state should be shown.
+     *
+     * @return true if the battle state should be shown
+     */
+    @Override
+    public boolean showBattle() {
+        return true;
+    }
+}

Projekte/battleship/model/src/main/java/pp/battleship/game/client/InitialState.java

@@ -0,0 +1,65 @@
+
+
+package pp.battleship.game.client;
+
+import pp.battleship.message.server.GameDetails;
+import pp.battleship.model.Battleship;
+import pp.battleship.model.Rotation;
+
+import java.util.Map.Entry;
+
+/**
+ * Represents the state of the client waiting for the
+ * {@linkplain pp.battleship.message.server.GameDetails}
+ * from the server.
+ */
+class InitialState extends ClientState {
+    /**
+     * Creates a new initial state.
+     *
+     * @param logic the game logic
+     */
+    public InitialState(ClientGameLogic logic) {
+        super(logic);
+    }
+
+    /**
+     * Sets the game details provided by the server.
+     *
+     * @param details the game details including map size and ships
+     */
+    @Override
+    public void receivedGameDetails(GameDetails details) {
+        logic.initializeMaps(details);
+        fillHarbor(details);
+        logic.setInfoText(details.getInfoTextKey());
+        logic.setState(new EditorState(logic));
+    }
+
+    /**
+     * Fills the harbor with ships as specified by the game details.
+     *
+     * @param details the game details including map size and ships
+     */
+    private void fillHarbor(GameDetails details) {
+        int y = 0;
+        for (Entry<Integer, Integer> entry : details.getShipNums().entrySet()) {
+            final int len = entry.getKey();
+            final int num = entry.getValue();
+            for (int i = 0; i < num; i++) {
+                final Battleship ship = new Battleship(len, 0, y++, Rotation.RIGHT);
+                logic.getHarbor().add(ship);
+            }
+        }
+    }
+
+    /**
+     * Checks if map may be saved to file
+     *
+     * @return false
+     */
+    @Override
+    public boolean maySaveMap() {
+        return false;
+    }
+}

Projekte/battleship/model/src/main/java/pp/battleship/game/client/ServerConnection.java

@@ -0,0 +1,27 @@
+
+
+package pp.battleship.game.client;
+
+/**
+ * Interface representing a connection to the server.
+ * Extends ClientSender to allow sending messages to the server.
+ */
+public interface ServerConnection extends ClientSender {
+
+    /**
+     * Checks if the client is currently connected to the server.
+     *
+     * @return true if connected, false otherwise.
+     */
+    boolean isConnected();
+
+    /**
+     * Establishes a connection to the server.
+     */
+    void connect();
+
+    /**
+     * Disconnects from the server.
+     */
+    void disconnect();
+}