Merge remote-tracking branch 'origin/connect' into connect

Main

See merge request progproj/gruppen-ht24/Gruppe-02!13

.gitignore

@@ -0,0 +1,27 @@
+# Gradle
+.gradle
+build
+
+# VSC
+bin
+.vscode
+
+# IntelliJ
+*.iml
+.idea
+out
+
+# Eclipse
+.classpath
+.project
+
+# Libraries
+*.so
+*.dylib
+*.dll
+*.jar
+*.class
+
+.DS_Store
+!Projekte/gradle/wrapper/gradle-wrapper.jar
+

Dokumente/.gitignore

@@ -0,0 +1 @@
+#

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/MonopolyApp.run.xml

@@ -0,0 +1,18 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="MonopolyApp" type="Application" factoryName="Application" singleton="false"
+                 nameIsGenerated="true">
+    <option name="MAIN_CLASS_NAME" value="pp.monopoly.client.MonopolyApp"/>
+    <module name="Projekte.monopoly.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.monopoly.client.*"/>
+        <option name="ENABLED" value="true"/>
+      </pattern>
+    </extension>
+    <method v="2">
+      <option name="Make" enabled="true"/>
+    </method>
+  </configuration>
+</component>

Projekte/.run/MonopolyServer.run.xml

@@ -0,0 +1,17 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="MonopolyServer" type="Application" factoryName="Application"
+                 nameIsGenerated="true">
+    <option name="MAIN_CLASS_NAME" value="pp.monopoly.server.MonopolyServer"/>
+    <module name="Projekte.monopoly.server.main"/>
+    <option name="WORKING_DIRECTORY" value="$MODULE_WORKING_DIR$"/>
+    <extension name="coverage">
+      <pattern>
+        <option name="PATTERN" value="pp.monopoly.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 +1,23 @@
+plugins {
+    id 'buildlogic.jme-application-conventions'
+}
+
+description = 'Battleship Client'
+
+dependencies {
+    implementation project(":jme-common")
+    implementation project(":battleship:model")
+
+    implementation libs.jme3.desktop
+    implementation libs.jme3.effects
+
+    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/BattleshipApp.java

@@ -0,0 +1,440 @@
+////////////////////////////////////////
+// Programming project code
+// UniBw M, 2022, 2023, 2024
+// www.unibw.de/inf2
+// (c) Mark Minas (mark.minas@unibw.de)
+////////////////////////////////////////
+
+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.GameMusic;
+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);
+
+    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();
+    }
+
+    /**
+     * 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();
+        attachGameMusic();
+        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);
+    }
+
+    /**
+     * Attaches the background music state and sets its initial enabled state.
+     */
+    private void attachGameMusic() {
+        final GameMusic gameSound = new GameMusic();
+        gameSound.setEnabled(GameMusic.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;
+    }
+
+    /**
+     * 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 +1,196 @@
+////////////////////////////////////////
+// Programming project code
+// UniBw M, 2022, 2023, 2024
+// www.unibw.de/inf2
+// (c) Mark Minas (mark.minas@unibw.de)
+////////////////////////////////////////
+
+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 +1,102 @@
+////////////////////////////////////////
+// Programming project code
+// UniBw M, 2022, 2023, 2024
+// www.unibw.de/inf2
+// (c) Mark Minas (mark.minas@unibw.de)
+////////////////////////////////////////
+
+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 +1,152 @@
+////////////////////////////////////////
+// Programming project code
+// UniBw M, 2022, 2023, 2024
+// www.unibw.de/inf2
+// (c) Mark Minas (mark.minas@unibw.de)
+////////////////////////////////////////
+
+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.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 {
+    private 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 shellFlyingSound;
+
+    /**
+     * 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
+        shellFlyingSound = loadSound(app, "Sound/Effects/shell_flying.wav");
+    }
+
+    /**
+     * 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 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 the shell flying sound effect.
+     */
+    public void shellFly() {
+        if (isEnabled() && shellFlyingSound != null) {
+            shellFlyingSound.playInstance();
+        }
+    }
+
+    /**
+     * Handles a recieved {@code SoundEvent} and plays the according sound.
+     * 
+     * @param event the Sound event to be processed
+     */
+    @Override
+    public void receivedEvent(SoundEvent event) {
+        switch (event.sound()) {
+            case EXPLOSION -> explosion();
+            case SPLASH -> splash();
+            case DESTROYED_SHIP -> shipDestroyed();
+            case SHELL_FLYING -> shellFly();
+        }
+    }
+}

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

@@ -0,0 +1,154 @@
+////////////////////////////////////////
+// Programming project code
+// UniBw M, 2022, 2023, 2024
+// www.unibw.de/inf2
+// (c) Mark Minas (mark.minas@unibw.de)
+////////////////////////////////////////
+
+package pp.battleship.client;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.prefs.Preferences;
+
+import com.simsilica.lemur.Button;
+import com.simsilica.lemur.Checkbox;
+import com.simsilica.lemur.Label;
+import com.simsilica.lemur.style.ElementId;
+
+import static pp.battleship.Resources.lookup;
+import pp.battleship.client.gui.GameMusic;
+import pp.dialog.Dialog;
+import pp.dialog.StateCheckboxModel;
+import pp.dialog.TextInputDialog;
+import pp.battleship.client.gui.VolumeSlider;
+
+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 VolumeSlider slider;
+
+    /**
+     * Constructs the Menu dialog for the Battleship application.+
+     *
+     * @param app the BattleshipApp instance
+     */
+    public Menu(BattleshipApp app) {
+        super(app.getDialogManager());
+        this.app = app;
+        slider = new VolumeSlider(app.getStateManager().getState(GameMusic.class));
+        addChild(new Label(lookup("battleship.name"), new ElementId("header"))); //NON-NLS
+        addChild(new Checkbox(lookup("menu.sound-enabled"), new StateCheckboxModel(app, GameSound.class)));
+
+        addChild(new Checkbox(lookup("menu.background-sound-enabled"), new StateCheckboxModel(app, GameMusic.class)));
+        
+        addChild(slider);
+
+        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 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());
+    }
+
+    @Override
+    public void update(float delta) {
+        slider.update();
+    }
+
+    /**
+     * 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 +1,177 @@
+////////////////////////////////////////
+// Programming project code
+// UniBw M, 2022, 2023, 2024
+// www.unibw.de/inf2
+// (c) Mark Minas (mark.minas@unibw.de)
+////////////////////////////////////////
+
+package pp.battleship.client;
+
+import java.lang.System.Logger;
+import java.lang.System.Logger.Level;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.Future;
+
+import com.simsilica.lemur.Button;
+import com.simsilica.lemur.Container;
+import com.simsilica.lemur.Label;
+import com.simsilica.lemur.TextField;
+import com.simsilica.lemur.component.SpringGridLayout;
+
+import static pp.battleship.Resources.lookup;
+import pp.battleship.server.BattleshipServer;
+import pp.dialog.Dialog;
+import pp.dialog.DialogBuilder;
+import pp.dialog.SimpleDialog;
+
+/**
+ * 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 = "42069"; //NON-NLS
+    private final NetworkSupport network;
+    private final TextField host = new TextField(LOCALHOST);
+    private final TextField port = new TextField(DEFAULT_PORT);
+    // private final Button serverButton = new Button(lookup("client.server-star"));
+    private final Button serverButton = new Button(lookup("client.server-start"));
+    private String hostname;
+    private int portNumber;
+    private Future<Object> connectionFuture;
+    private Dialog progressDialog;
+
+    /**
+     * 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);
+
+        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);
+
+        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);
+        
+        //Add the button to start the sever
+        addChild(serverButton).addClickCommands(s -> ifTopDialog(this::startServerInThread));
+    }
+
+    /**
+     * Handles the action for the connect button in the connection dialog.
+     * Tries to parse the port number and initiate connection to the server.
+     */
+    private void connect() {
+        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());
+    }
+
+    /**
+     * Starts the server in a separate thread.
+     */
+    private void startServerInThread() {
+        serverButton.setEnabled(false);
+        Thread serverThread = new Thread(() -> {
+            try {
+                BattleshipServer.main(null);
+            } catch (Exception e) {
+                serverButton.setEnabled(true);
+                LOGGER.log(Level.ERROR, "Server could not be started", e);
+                network.getApp().errorDialog("Could not start server: " + e.getMessage());
+            }
+        });
+        serverThread.start();
+    }
+}

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

@@ -0,0 +1,152 @@
+////////////////////////////////////////
+// Programming project code
+// UniBw M, 2022, 2023, 2024
+// www.unibw.de/inf2
+// (c) Mark Minas (mark.minas@unibw.de)
+////////////////////////////////////////
+
+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 +1,122 @@
+////////////////////////////////////////
+// Programming project code
+// UniBw M, 2022, 2023, 2024
+// www.unibw.de/inf2
+// (c) Mark Minas (mark.minas@unibw.de)
+////////////////////////////////////////
+
+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 +1,173 @@
+////////////////////////////////////////
+// Programming project code
+// UniBw M, 2022, 2023, 2024
+// www.unibw.de/inf2
+// (c) Mark Minas (mark.minas@unibw.de)
+////////////////////////////////////////
+
+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/GameMusic.java

@@ -0,0 +1,122 @@
+package pp.battleship.client.gui;
+
+import static pp.util.PreferencesUtils.getPreferences;
+
+import java.lang.System.Logger;
+import java.lang.System.Logger.Level;
+import java.util.prefs.Preferences;
+
+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;
+
+/**
+ * Handles the background music beeing played. Is able to start and stop the music. Set the Volume of the Audio.
+ */
+public class GameMusic extends AbstractAppState{
+    private static final Logger LOGGER = System.getLogger(GameMusic.class.getName());
+    private static final Preferences PREFERENCES = getPreferences(GameMusic.class);
+    private static final String ENABLED_PREF = "enabled"; //NON-NLS
+    private static final String VOLUME_PREF = "volume"; //NON-NLS
+
+    private AudioNode music;
+
+    /**
+     * 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);
+    }
+
+        /**
+     * Checks if sound is enabled in the preferences.
+     *
+     * @return float to which the volume is set
+     */
+    public static float volumeInPreferences() {
+        return PREFERENCES.getFloat(VOLUME_PREF, 0.5f);
+    }
+
+    /**
+     * 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);
+        music = loadSound(app, "Sound/background.ogg");
+        setVolume(volumeInPreferences());
+        music.setLooping(true);
+        if (isEnabled() && music != null) {
+            music.play();
+        }
+    }
+
+    /**
+     * 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;
+    }
+
+    /**
+     * 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;
+
+        if (music != null) {
+            if (enabled) {
+                music.play();
+            } else {
+                music.stop();
+            }
+        }
+    
+        super.setEnabled(enabled);
+        LOGGER.log(Level.INFO, "Sound enabled: {0}", enabled); //NON-NLS
+        PREFERENCES.putBoolean(ENABLED_PREF, enabled);
+    }
+
+    /**
+     * Toggles the game sound on or off.
+     */
+    public void toggleSound() {
+        setEnabled(!isEnabled());
+    }
+
+    /**
+     * Sets the volume of music
+     * @param vol the volume to which the music should be set
+     */
+    public void setVolume(float vol){
+        music.setVolume(vol);
+        PREFERENCES.putFloat(VOLUME_PREF, vol);
+    }
+}

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

@@ -0,0 +1,191 @@
+////////////////////////////////////////
+// Programming project code
+// UniBw M, 2022, 2023, 2024
+// www.unibw.de/inf2
+// (c) Mark Minas (mark.minas@unibw.de)
+////////////////////////////////////////
+
+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 {
+    public 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 +1,154 @@
+////////////////////////////////////////
+// Programming project code
+// UniBw M, 2022, 2023, 2024
+// www.unibw.de/inf2
+// (c) Mark Minas (mark.minas@unibw.de)
+////////////////////////////////////////
+
+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.scene.Geometry;
+import com.jme3.scene.Node;
+import com.jme3.scene.Spatial;
+import com.jme3.scene.shape.Sphere;
+
+import pp.battleship.model.Battleship;
+import pp.battleship.model.Shell;
+import pp.battleship.model.Shot;
+import pp.util.Position;
+
+import static com.jme3.material.Materials.UNSHADED;
+
+
+/**
+ * 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;
+
+    // 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;
+
+    /**
+     * 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) {
+        // 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 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) {
+        return view.getApp().getDraw().makeFatLine(x1, y1, x2, y2, SHIP_DEPTH, color, SHIP_LINE_WIDTH);
+    }
+
+        /**
+     * Creates and returns a Spatial representation of the given {@code Shell} object
+     * for 2D visualization in the game. The shell is represented as a circle.
+     *
+     * @param shell The {@code Shell} object to be visualized.
+     * @return A {@code Spatial} object representing the shell on the map.
+     */
+    @Override
+    public Spatial visit(Shell shell) {
+        final ColorRGBA color = ColorRGBA.Black;
+        Geometry ellipse = new Geometry("ellipse", new Sphere(50, 50, MapView.FIELD_SIZE / 2 * 0.8f));
+        Material mat = new Material(view.getApp().getAssetManager(), UNSHADED); //NON-NLS
+        mat.getAdditionalRenderState().setBlendMode(BlendMode.Alpha);
+        mat.getAdditionalRenderState().setFaceCullMode(RenderState.FaceCullMode.Off);
+        mat.setColor("Color", color);
+        ellipse.setMaterial(mat);
+        ellipse.addControl(new Shell2DControl(view, shell));
+        return ellipse;
+    }      
+}

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

@@ -0,0 +1,285 @@
+package pp.battleship.client.gui;
+
+import com.jme3.effect.ParticleEmitter;
+import com.jme3.effect.ParticleMesh.Type;
+import com.jme3.effect.shapes.EmitterSphereShape;
+import com.jme3.material.Material;
+import com.jme3.math.ColorRGBA;
+import com.jme3.math.FastMath;
+import com.jme3.math.Vector3f;
+import pp.battleship.client.BattleshipApp;
+
+/**
+ * Factory class responsible for creating particle effects used in the game.
+ * This centralizes the creation of various types of particle emitters.
+ */
+public class ParticleEffectFactory {
+    private static final int COUNT_FACTOR = 1;
+    private static final float COUNT_FACTOR_F = 1f;
+    private static final boolean POINT_SPRITE = true;
+    private static final Type EMITTER_TYPE = POINT_SPRITE ? Type.Point : Type.Triangle;
+    
+    private final BattleshipApp app;
+
+    ParticleEffectFactory(BattleshipApp app) {
+        this.app = app;
+    }
+
+    /**
+     * Creates a flame particle emitter.
+     * 
+     * @return a configured flame particle emitter
+     */
+    ParticleEmitter createFlame() {
+        ParticleEmitter flame = new ParticleEmitter("Flame", EMITTER_TYPE, 32 * COUNT_FACTOR);
+        flame.setSelectRandomImage(true);
+        flame.setStartColor(new ColorRGBA(1f, 0.4f, 0.05f, (1f / COUNT_FACTOR_F)));
+        flame.setEndColor(new ColorRGBA(.4f, .22f, .12f, 0f));
+        flame.setStartSize(0.1f);
+        flame.setEndSize(0.5f);
+        flame.setShape(new EmitterSphereShape(Vector3f.ZERO, 1f));
+        flame.setParticlesPerSec(0);
+        flame.setGravity(0, -5, 0);
+        flame.setLowLife(.4f);
+        flame.setHighLife(.5f);
+        flame.getParticleInfluencer().setInitialVelocity(new Vector3f(0, 7, 0));
+        flame.getParticleInfluencer().setVelocityVariation(1f);
+        flame.setImagesX(2);
+        flame.setImagesY(2);
+        Material mat = new Material(app.getAssetManager(), "Common/MatDefs/Misc/Particle.j3md");
+        mat.setTexture("Texture", app.getAssetManager().loadTexture("Effects/Explosion/flame.png"));
+        mat.setBoolean("PointSprite", POINT_SPRITE);
+        flame.setMaterial(mat);
+
+        return flame;
+    }
+
+    /**
+     * Creates a flash particle emitter.
+     * 
+     * @return a configured flash particle emitter
+     */
+    ParticleEmitter createFlash() {
+        ParticleEmitter flash = new ParticleEmitter("Flash", EMITTER_TYPE, 24 * COUNT_FACTOR);
+        flash.setSelectRandomImage(true);
+        flash.setStartColor(new ColorRGBA(1f, 0.8f, 0.36f, 1f / COUNT_FACTOR_F));
+        flash.setEndColor(new ColorRGBA(1f, 0.8f, 0.36f, 0f));
+        flash.setStartSize(.1f);
+        flash.setEndSize(0.5f);
+        flash.setShape(new EmitterSphereShape(Vector3f.ZERO, .05f));
+        flash.setParticlesPerSec(0);
+        flash.setGravity(0, 0, 0);
+        flash.setLowLife(.2f);
+        flash.setHighLife(.2f);
+        flash.getParticleInfluencer().setInitialVelocity(new Vector3f(0, 5f, 0));
+        flash.getParticleInfluencer().setVelocityVariation(1);
+        flash.setImagesX(2);
+        flash.setImagesY(2);
+        Material mat = new Material(app.getAssetManager(), "Common/MatDefs/Misc/Particle.j3md");
+        mat.setTexture("Texture", app.getAssetManager().loadTexture("Effects/Explosion/flash.png"));
+        mat.setBoolean("PointSprite", POINT_SPRITE);
+        flash.setMaterial(mat);
+
+        return flash;
+    }
+
+    /**
+     * Creates a round spark particle emitter.
+     * 
+     * @return a configured round spark particle emitter
+     */
+    ParticleEmitter createRoundSpark() {
+        ParticleEmitter roundSpark = new ParticleEmitter("RoundSpark", EMITTER_TYPE, 20 * COUNT_FACTOR);
+        roundSpark.setStartColor(new ColorRGBA(1f, 0.29f, 0.34f, (float) (1.0 / COUNT_FACTOR_F)));
+        roundSpark.setEndColor(new ColorRGBA(0, 0, 0, 0.5f / COUNT_FACTOR_F));
+        roundSpark.setStartSize(0.2f);
+        roundSpark.setEndSize(0.8f);
+        roundSpark.setShape(new EmitterSphereShape(Vector3f.ZERO, 1f));
+        roundSpark.setParticlesPerSec(0);
+        roundSpark.setGravity(0, -.5f, 0);
+        roundSpark.setLowLife(1.8f);
+        roundSpark.setHighLife(2f);
+        roundSpark.getParticleInfluencer().setInitialVelocity(new Vector3f(0, 3, 0));
+        roundSpark.getParticleInfluencer().setVelocityVariation(.5f);
+        roundSpark.setImagesX(1);
+        roundSpark.setImagesY(1);
+        Material mat = new Material(app.getAssetManager(), "Common/MatDefs/Misc/Particle.j3md");
+        mat.setTexture("Texture", app.getAssetManager().loadTexture("Effects/Explosion/roundspark.png"));
+        mat.setBoolean("PointSprite", POINT_SPRITE);
+        roundSpark.setMaterial(mat);
+
+        return roundSpark;
+    }
+
+    /**
+     * Creates a spark particle emitter.
+     * 
+     * @return a configured spark particle emitter
+     */
+    ParticleEmitter createSpark() {
+        ParticleEmitter spark = new ParticleEmitter("Spark", Type.Triangle, 30 * COUNT_FACTOR);
+        spark.setStartColor(new ColorRGBA(1f, 0.8f, 0.36f, 1.0f / COUNT_FACTOR_F));
+        spark.setEndColor(new ColorRGBA(1f, 0.8f, 0.36f, 0f));
+        spark.setStartSize(.5f);
+        spark.setEndSize(.5f);
+        spark.setFacingVelocity(true);
+        spark.setParticlesPerSec(0);
+        spark.setGravity(0, 5, 0);
+        spark.setLowLife(1.1f);
+        spark.setHighLife(1.5f);
+        spark.getParticleInfluencer().setInitialVelocity(new Vector3f(0, 20, 0));
+        spark.getParticleInfluencer().setVelocityVariation(1);
+        spark.setImagesX(1);
+        spark.setImagesY(1);
+        Material mat = new Material(app.getAssetManager(), "Common/MatDefs/Misc/Particle.j3md");
+        mat.setTexture("Texture", app.getAssetManager().loadTexture("Effects/Explosion/spark.png"));
+        spark.setMaterial(mat);
+
+        return spark;
+    }
+
+    /**
+     * Creates a smoke trail particle emitter.
+     * 
+     * @return a configured smoke trail particle emitter
+     */
+    ParticleEmitter createSmokeTrail() {
+        ParticleEmitter smokeTrail = new ParticleEmitter("SmokeTrail", Type.Triangle, 22 * COUNT_FACTOR);
+        smokeTrail.setStartColor(new ColorRGBA(1f, 0.8f, 0.36f, 1.0f / COUNT_FACTOR_F));
+        smokeTrail.setEndColor(new ColorRGBA(1f, 0.8f, 0.36f, 0f));
+        smokeTrail.setStartSize(.2f);
+        smokeTrail.setEndSize(1f);
+        smokeTrail.setFacingVelocity(true);
+        smokeTrail.setParticlesPerSec(0);
+        smokeTrail.setGravity(0, 1, 0);
+        smokeTrail.setLowLife(.4f);
+        smokeTrail.setHighLife(.5f);
+        smokeTrail.getParticleInfluencer().setInitialVelocity(new Vector3f(0, 12, 0));
+        smokeTrail.getParticleInfluencer().setVelocityVariation(1);
+        smokeTrail.setImagesX(1);
+        smokeTrail.setImagesY(3);
+        Material mat = new Material(app.getAssetManager(), "Common/MatDefs/Misc/Particle.j3md");
+        mat.setTexture("Texture", app.getAssetManager().loadTexture("Effects/Explosion/smoketrail.png"));
+        smokeTrail.setMaterial(mat);
+
+        return smokeTrail;
+    }
+
+    /**
+     * Creates a debris particle emitter.
+     * 
+     * @return a configured debris particle emitter
+     */
+    ParticleEmitter createDebris() {
+        ParticleEmitter debris = new ParticleEmitter("Debris", Type.Triangle, 15 * COUNT_FACTOR);
+        debris.setSelectRandomImage(true);
+        debris.setRandomAngle(true);
+        debris.setRotateSpeed(FastMath.TWO_PI * 4);
+        debris.setStartColor(new ColorRGBA(1f, 0.59f, 0.28f, 1.0f / COUNT_FACTOR_F));
+        debris.setEndColor(new ColorRGBA(.5f, 0.5f, 0.5f, 0f));
+        debris.setStartSize(.10f);
+        debris.setEndSize(.15f);
+        debris.setParticlesPerSec(0);
+        debris.setGravity(0, 12f, 0);
+        debris.setLowLife(1.4f);
+        debris.setHighLife(1.5f);
+        debris.getParticleInfluencer().setInitialVelocity(new Vector3f(0, 15, 0));
+        debris.getParticleInfluencer().setVelocityVariation(.60f);
+        debris.setImagesX(3);
+        debris.setImagesY(3);
+        Material mat = new Material(app.getAssetManager(), "Common/MatDefs/Misc/Particle.j3md");
+        mat.setTexture("Texture", app.getAssetManager().loadTexture("Effects/Explosion/Debris.png"));
+        debris.setMaterial(mat);
+
+        return debris;
+    }
+
+    /**
+     * Creates a shockwave particle emitter.
+     * 
+     * @return a configured shockwave particle emitter
+     */
+    ParticleEmitter createShockwave() {
+        ParticleEmitter shockwave = new ParticleEmitter("Shockwave", Type.Triangle, 1 * COUNT_FACTOR);
+        shockwave.setFaceNormal(Vector3f.UNIT_Y);
+        shockwave.setStartColor(new ColorRGBA(.48f, 0.17f, 0.01f, .8f / COUNT_FACTOR_F));
+        shockwave.setEndColor(new ColorRGBA(.48f, 0.17f, 0.01f, 0f));
+        shockwave.setStartSize(0f);
+        shockwave.setEndSize(3f);
+        shockwave.setParticlesPerSec(0);
+        shockwave.setGravity(0, 0, 0);
+        shockwave.setLowLife(0.5f);
+        shockwave.setHighLife(0.5f);
+        shockwave.getParticleInfluencer().setInitialVelocity(new Vector3f(0, 0, 0));
+        shockwave.getParticleInfluencer().setVelocityVariation(0f);
+        shockwave.setImagesX(1);
+        shockwave.setImagesY(1);
+        Material mat = new Material(app.getAssetManager(), "Common/MatDefs/Misc/Particle.j3md");
+        mat.setTexture("Texture", app.getAssetManager().loadTexture("Effects/Explosion/shockwave.png"));
+        shockwave.setMaterial(mat);
+
+        return shockwave;
+    }
+
+    /**
+     * Creates a moving smoke emitter.
+     * 
+     * @return a configured smoke emitter
+     */
+    ParticleEmitter createMovingSmokeEmitter() {
+        ParticleEmitter smokeEmitter = new ParticleEmitter("SmokeEmitter", Type.Triangle, 300);
+        smokeEmitter.setGravity(0, 0, 0);
+        smokeEmitter.getParticleInfluencer().setVelocityVariation(1);
+        smokeEmitter.setLowLife(1);
+        smokeEmitter.setHighLife(1);
+        smokeEmitter.getParticleInfluencer().setInitialVelocity(new Vector3f(0, .5f, 0));
+        smokeEmitter.setImagesX(15); // Assuming the smoke texture is a sprite sheet with 15 frames
+        Material mat = new Material(app.getAssetManager(), "Common/MatDefs/Misc/Particle.j3md");
+        mat.setTexture("Texture", app.getAssetManager().loadTexture("Effects/Smoke/Smoke.png"));
+        smokeEmitter.setMaterial(mat);
+
+        return smokeEmitter;
+    }
+
+    /**
+     * Creates a one-time water splash particle emitter.
+     * 
+     * @return a configured one-time water splash particle emitter
+     */
+    public ParticleEmitter createWaterSplash() {
+        // Create a new particle emitter for the splash effect
+        ParticleEmitter waterSplash = new ParticleEmitter("WaterSplash", Type.Triangle, 30);
+        
+        // Set the shape of the emitter, making particles emit from a point or small area
+        waterSplash.setShape(new EmitterSphereShape(Vector3f.ZERO, 0.2f));
+        
+        // Start and end colors for water (blue, fading out)
+        waterSplash.setStartColor(new ColorRGBA(0.4f, 0.4f, 1f, 1f));  // Light blue at start
+        waterSplash.setEndColor(new ColorRGBA(0.4f, 0.4f, 1f, 0f));    // Transparent at the end
+        
+        // Particle size: small at start, larger before fading out
+        waterSplash.setStartSize(0.1f);
+        waterSplash.setEndSize(0.3f);
+
+        // Particle lifespan (how long particles live)
+        waterSplash.setLowLife(0.5f);
+        waterSplash.setHighLife(1f);
+
+        // Gravity: Pull the water particles downwards
+        waterSplash.setGravity(0, -9.81f, 0);  // Earth's gravity simulation
+        
+        // Velocity: Give particles an initial burst upward (simulates splash)
+        waterSplash.getParticleInfluencer().setInitialVelocity(new Vector3f(0, 3, 0));
+        waterSplash.getParticleInfluencer().setVelocityVariation(0.6f);  // Add randomness to splash
+        
+        // Set how many particles are emitted per second (0 to emit all particles at once)
+        waterSplash.setParticlesPerSec(0);
+        
+        // Load a texture for the water splash (assuming a texture exists at this path)
+        Material mat = new Material(app.getAssetManager(), "Common/MatDefs/Misc/Particle.j3md");
+        mat.setTexture("Texture", app.getAssetManager().loadTexture("Effects/Splash/splash.png"));
+        waterSplash.setMaterial(mat);
+
+        return waterSplash;
+    }
+}

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

@@ -0,0 +1,203 @@
+////////////////////////////////////////
+// Programming project code
+// UniBw M, 2022, 2023, 2024
+// www.unibw.de/inf2
+// (c) Mark Minas (mark.minas@unibw.de)
+////////////////////////////////////////
+
+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 +1,378 @@
+////////////////////////////////////////
+// Programming project code
+// UniBw M, 2022, 2023, 2024
+// www.unibw.de/inf2
+// (c) Mark Minas (mark.minas@unibw.de)
+////////////////////////////////////////
+
+package pp.battleship.client.gui;
+
+import com.jme3.effect.ParticleEmitter;
+import com.jme3.material.Material;
+import com.jme3.material.RenderState.BlendMode;
+import com.jme3.math.ColorRGBA;
+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.Rotation;
+import pp.battleship.model.Shell;
+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"; //NON-NLS
+    private static final String BOAT_SMALL_MODEL = "Models/BoatSmall/12219_boat_v2_L2.j3o"; //NON-NLS
+    private static final String CV_MODEL = "Models/CV/CV.j3o"; //NON-NLS
+    private static final String BATTLE_MODEL = "Models/Battle/Battle.j3o"; //NON-NLS
+    private static final String LIGHTING = "Common/MatDefs/Light/Lighting.j3md";
+    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 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 ShipMap map;
+    private final BattleshipApp app;
+    private final ParticleEffectFactory particleFactory;
+
+    /**
+     * 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;
+        this.particleFactory = new ParticleEffectFactory(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) : handleMiss(shot);
+    }
+
+    /**
+     * Handles a miss by representing it with a blue cylinder
+     * and attaching a water splash effect to it.
+     * @param shot the shot to be processed
+     * @return a Spatial simulating a miss with water splash effect
+     */
+    private Spatial handleMiss(Shot shot) {
+        Node shotNode = new Node("ShotNode");
+        Geometry shotCylinder = createCylinder(shot);
+        shotNode.attachChild(shotCylinder);
+        ParticleEmitter waterSplash = particleFactory.createWaterSplash();
+        waterSplash.setLocalTranslation(shot.getY() + 0.5f, 0f, shot.getX() + 0.5f);
+        shotNode.attachChild(waterSplash);
+        waterSplash.emitAllParticles();
+
+        return shotNode;
+    }
+
+    /**
+     * Handles the sinking animation and removal of ship if destroyed
+     * @param ship the ship to be sunk
+     */
+    private void sinkAndRemoveShip(Battleship ship) {
+        Battleship wilkeningklaunichtmeinencode = ship;
+        final Node shipNode = (Node) getSpatial(wilkeningklaunichtmeinencode);
+        if (shipNode == null) return;
+
+        // Add sinking control to animate the sinking
+        shipNode.addControl(new SinkingControl(shipNode));
+
+        // Add particle effects
+        ParticleEmitter bubbles = particleFactory.createWaterSplash();
+        bubbles.setLocalTranslation(shipNode.getLocalTranslation());
+        shipNode.attachChild(bubbles);
+        bubbles.emitAllParticles();
+    }
+
+    /**
+     * 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");
+
+
+
+        // Create a new node specifically for the hit effects
+        Node hitEffectNode = new Node("HitEffectNode");
+
+        // Create particle effects
+        ParticleEmitter flame = particleFactory.createFlame();
+        ParticleEmitter flash = particleFactory.createFlash();
+        ParticleEmitter spark = particleFactory.createSpark();
+        ParticleEmitter roundSpark = particleFactory.createRoundSpark();
+        ParticleEmitter smokeTrail = particleFactory.createSmokeTrail();
+        ParticleEmitter debris = particleFactory.createDebris();
+        ParticleEmitter shockwave = particleFactory.createShockwave();
+        ParticleEmitter movingSmoke = particleFactory.createMovingSmokeEmitter();
+
+        // Attach all effects to the hitEffectNode
+        hitEffectNode.attachChild(flame);
+        hitEffectNode.attachChild(flash);
+        hitEffectNode.attachChild(spark);
+        hitEffectNode.attachChild(roundSpark);
+        hitEffectNode.attachChild(smokeTrail);
+        hitEffectNode.attachChild(debris);
+        hitEffectNode.attachChild(shockwave);
+        hitEffectNode.attachChild(movingSmoke);
+
+        // Set the local translation for the hit effect to the point of impact
+        hitEffectNode.setLocalTranslation(shot.getY() + 0.5f - shipNode.getLocalTranslation().x,
+                                          0.5f, // Adjust as needed for height above the ship
+                                          shot.getX() + 0.5f - shipNode.getLocalTranslation().z);
+
+        // Attach the hitEffectNode to the shipNode so it moves with the ship
+        shipNode.attachChild(hitEffectNode);
+
+        // Emit particles when the hit happens
+        flash.emitAllParticles();
+        spark.emitAllParticles();
+        smokeTrail.emitAllParticles();
+        debris.emitAllParticles();
+        shockwave.emitAllParticles();
+        flame.emitAllParticles();
+        roundSpark.emitAllParticles();
+
+        //Checks if ship is destroyed and triggers animation accordingly
+        if (ship.isDestroyed()) {
+            sinkAndRemoveShip(ship);
+        }
+
+        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;
+    }
+
+    /**
+     * 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) {
+        switch (ship.getLength()) {
+            case 4: return createBattleship(ship);
+            case 3: return createCV(ship);
+            case 2: return createBattle(ship);
+            case 1: return createSmallship(ship);
+            default: return 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.scale(0.0007f);
+        model.setShadowMode(ShadowMode.CastAndReceive);
+
+        return model;
+    }
+    
+    /**
+     * Creates a detailed 3D model to represent a small tug boat.
+     *
+     * @param ship the battleship to be represented
+     * @return the spatial representing a small tug boat
+     */
+    private Spatial createSmallship(Battleship ship) {
+        final Spatial model = app.getAssetManager().loadModel(BOAT_SMALL_MODEL);
+
+        model.rotate(-HALF_PI, calculateRotationAngle(ship.getRot()), 0f);
+        model.scale(0.0005f);
+        model.setShadowMode(ShadowMode.CastAndReceive);
+
+        return model;
+    }
+
+    /**
+     * Creates a detailed 3D model to represent a "German WWII UBoat".
+     *
+     * @param ship the battleship to be represented
+     * @return the spatial representing the "German WWII UBoat"
+     */
+    private Spatial createCV(Battleship ship) {
+        final Spatial model = app.getAssetManager().loadModel(CV_MODEL);
+
+        model.rotate(0f, calculateRotationAngle(ship.getRot()), 0f);
+        model.move(0f, 0.25f, 0f);
+        model.scale(0.85f);
+        model.setShadowMode(ShadowMode.CastAndReceive);
+
+        return model;
+    }
+
+    /**
+     * Creates a detailed 3D model to represent a battleship.
+     *
+     * @param ship the battleship to be represented
+     * @return the spatial representing a battleship
+     */
+    private Spatial createBattle(Battleship ship) {
+        final Spatial model = app.getAssetManager().loadModel(BATTLE_MODEL);
+
+        model.rotate(-HALF_PI, calculateRotationAngle(ship.getRot()), 0f);
+        model.move(0f, -0.06f, 0f);
+        model.scale(0.27f);
+        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;
+        };
+    }
+
+    /**
+     * Creates and returns a 3D model representation of the given {@code Shell} object
+     * for visualization in the game.
+     *
+     * @param shell The {@code Shell} object to be visualized.
+     * @return A {@code Spatial} object representing the 3D model of the shell.
+     */
+    @Override
+    public Spatial visit(Shell shell) {
+        final Spatial model = app.getAssetManager().loadModel("Models/Shell/shell.j3o");
+        model.setLocalScale(.05f);
+        model.setShadowMode(ShadowMode.CastAndReceive);
+        Material mat = new Material(app.getAssetManager(), LIGHTING);
+        mat.setTexture("DiffuseMap", app.getAssetManager().loadTexture("Models/Shell/shell_color.png"));
+        mat.setReceivesShadows(true);
+        model.setMaterial(mat);
+
+        model.addControl(new ShellControl(shell));
+        return model;
+    }
+}

Projekte/battleship/client/src/main/java/pp/battleship/client/gui/Shell2DControl.java

@@ -0,0 +1,57 @@
+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.model.Shell;
+import pp.util.Position;
+
+/**
+ * Controls the 2D representation of a {@code Shell} in the game, updating its position
+ * based on the shell's current state in the game model. The {@code Shell2DControl} class
+ * is responsible for translating the shell's 3D position to a 2D view position within
+ * the game's map view.
+ */
+public class Shell2DControl extends AbstractControl {
+    private final Shell shell;
+    private final MapView view;
+
+    /**
+     * Constructs a new {@code Shell2DControl} to manage the 2D visualization of the given {@code Shell}.
+     *
+     * @param view  The {@code MapView} used to get information about the map to display.
+     * @param shell The {@code Shell} being visualized.
+     */
+    public Shell2DControl(MapView view, Shell shell){
+        this.shell = shell;
+        this.view = view;
+    }
+
+    /**
+     * Updates the position of the shell's 2D representation based on the shell's current
+     * 3D position in the game model. The position is mapped from model space to view space
+     * coordinates and translated to the appropriate location within the {@code MapView}.
+     *
+     * @param tpf Time per frame, representing the time elapsed since the last frame.
+     */
+    @Override
+    protected void controlUpdate(float tpf) {
+        Vector3f shellPos = shell.getPosition();
+        Position viewPos = view.modelToView(shellPos.x, shellPos.z);
+        spatial.setLocalTranslation(viewPos.getX() + MapView.FIELD_SIZE / 2, viewPos.getY() + MapView.FIELD_SIZE / 2, 0);
+    }
+
+    /**
+     * 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-specific behavior required for this control
+    }
+}

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

@@ -0,0 +1,58 @@
+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.model.Shell;
+
+import static pp.util.FloatMath.PI;
+
+/**
+ * Controls the 3D representation of a {@code Shell} in the game, updating its position
+ * and rotation based on the shell's current state in the game model. The {@code ShellControl}
+ * class ensures that the spatial associated with the shell is positioned and oriented correctly
+ * within the world.
+ */
+public class ShellControl extends AbstractControl {
+    private final Shell shell;
+
+    /**
+     * Constructs a new {@code ShellControl} to manage the 3D visualization of the given {@code Shell}.
+     *
+     * @param shell The {@code Shell} being visualized and controlled.
+     */
+    public ShellControl(Shell shell){
+        super();
+        this.shell = shell;
+    }
+
+    /**
+     * Updates the 3D position and rotation of the shell based on its current state.
+     * Converts map coordinates to world coordinates and applies the shell's orientation.
+     *
+     * @param tpf Time per frame, representing the elapsed time since the last update.
+     */
+    @Override
+    protected void controlUpdate(float tpf) {
+        Vector3f pos = shell.getPosition();
+        Vector3f fixed = new Vector3f(pos.z + 0.5f, pos.y, pos.x + 0.5f);
+        fixed.setY(pos.y);
+        spatial.setLocalTranslation(fixed);
+        spatial.setLocalRotation(shell.getRotation());
+        spatial.rotate(PI/2,0,0);
+    }
+
+    /**
+     * 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-specific behavior required for this control
+    }
+}

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

@@ -0,0 +1,106 @@
+////////////////////////////////////////
+// Programming project code
+// UniBw M, 2022, 2023, 2024
+// www.unibw.de/inf2
+// (c) Mark Minas (mark.minas@unibw.de)
+////////////////////////////////////////
+
+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 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;
+
+    /**
+     * 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) {
+        // 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 = ship.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;
+
+        // 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 +1,89 @@
+////////////////////////////////////////
+// Programming project code
+// UniBw M, 2022, 2023, 2024
+// www.unibw.de/inf2
+// (c) Mark Minas (mark.minas@unibw.de)
+////////////////////////////////////////
+
+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/pp/battleship/client/gui/SinkingControl.java

@@ -0,0 +1,61 @@
+package pp.battleship.client.gui;
+
+import com.jme3.scene.control.AbstractControl;
+import com.jme3.math.Vector3f;
+import com.jme3.renderer.RenderManager;
+import com.jme3.renderer.ViewPort;
+import com.jme3.scene.Node;
+
+/**
+ * Control that handles the sinking effect for destroyed ships.
+ * It will gradually move the ship downwards and then remove it from the scene.
+ */
+class SinkingControl extends AbstractControl {
+    private static final float SINK_DURATION = 5f;  // Duration of the sinking animation
+    private static final float SINK_SPEED = 0.1f;   // Speed at which the ship sinks
+    private float elapsedTime = 0;
+
+    private final Node shipNode;
+
+    /**
+     * Constructs a {@code SinkingControl} object with the shipNode to be to be sunk
+     * @param shipNode the node to handeld
+     */
+    public SinkingControl(Node shipNode) {
+        this.shipNode = shipNode;
+    }
+
+    /**
+     * Updated the Map to sink the ship
+     * 
+     * @param tpf time per frame
+     */
+    @Override
+    protected void controlUpdate(float tpf) {
+        // Update the sinking effect
+        elapsedTime += tpf;
+
+        // Move the ship down over time
+        Vector3f currentPos = shipNode.getLocalTranslation();
+        shipNode.setLocalTranslation(currentPos.x, currentPos.y - SINK_SPEED * tpf, currentPos.z);
+
+        // Check if sinking duration has passed
+        if (elapsedTime >= SINK_DURATION) {
+            // Remove the ship from the scene
+            shipNode.removeFromParent();
+        }
+    }
+
+    /**
+     * 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-related code needed
+    }
+}

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

@@ -0,0 +1,36 @@
+package pp.battleship.client.gui;
+
+import com.simsilica.lemur.Slider;
+
+/**
+ * The VolumeSlider class represents the Volume Slider in the Menu.
+ * It extends the Slider class and provides functionalities for setting the music volume,
+ * with the help of the Slider in the GUI 
+ */
+public class VolumeSlider extends Slider {
+
+    private final GameMusic music;
+    private double vol;
+
+    /**
+     * Constructs the Volume Slider for the Menu dialog
+     * @param music the music instance
+     */
+    public VolumeSlider(GameMusic music) {
+        super();
+        this.music = music;
+        vol = GameMusic.volumeInPreferences();
+        getModel().setPercent(vol);
+    }
+
+    /**
+     * when triggered it updates the volume to the value set with the slider
+     */
+    public void update() {
+        if (vol != getModel().getPercent()) {
+            vol = getModel().getPercent();
+            music.setVolume( (float) vol);
+        }
+    }
+    
+}

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

@@ -0,0 +1,182 @@
+////////////////////////////////////////
+// Programming project code
+// UniBw M, 2022, 2023, 2024
+// www.unibw.de/inf2
+// (c) Mark Minas (mark.minas@unibw.de)
+////////////////////////////////////////
+
+package pp.battleship.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.AnimationFinishedMessage;
+import pp.battleship.message.client.ClientMessage;
+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.StartBattleMessage;
+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 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());
+        }
+    }
+
+    /**
+     * Starts the Battleships server.
+     */
+    public static void main(String[] args) {
+        new BattleshipServer().run();
+    }
+
+    /**
+     * Creates the server.
+     */
+    BattleshipServer() {
+        config.readFromIfExists(CONFIG_FILE);
+        LOGGER.log(Level.INFO, "Configuration: {0}", config); //NON-NLS
+        logic = new ServerGameLogic(this, config);
+    }
+
+    public void run() {
+        startServer();
+        while (true)
+            processNextMessage();
+    }
+
+    private void startServer() {
+        try {
+            LOGGER.log(Level.INFO, "Starting server..."); //NON-NLS
+            myServer = Network.createServer(config.getPort());
+            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);
+        }
+    }
+
+    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();
+        }
+    }
+
+    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(AnimationFinishedMessage.class);
+        Serializer.registerClass(Battleship.class);
+        Serializer.registerClass(IntPoint.class);
+        Serializer.registerClass(Shot.class);
+    }
+
+    private void registerListeners() {
+        myServer.addMessageListener(this, MapMessage.class);
+        myServer.addMessageListener(this, ShootMessage.class);
+        myServer.addMessageListener(this, AnimationFinishedMessage.class);
+        myServer.addConnectionListener(this);
+    }
+
+    @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()));
+    }
+
+    @Override
+    public void connectionAdded(Server server, HostedConnection hostedConnection) {
+        LOGGER.log(Level.INFO, "new connection {0}", hostedConnection); //NON-NLS
+        logic.addPlayer(hostedConnection.getId());
+    }
+
+    @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);
+        }
+    }
+
+    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/pp/battleship/server/ReceivedMessage.java

@@ -0,0 +1,17 @@
+////////////////////////////////////////
+// Programming project code
+// UniBw M, 2022, 2023, 2024
+// www.unibw.de/inf2
+// (c) Mark Minas (mark.minas@unibw.de)
+////////////////////////////////////////
+
+package pp.battleship.server;
+
+import pp.battleship.message.client.ClientInterpreter;
+import pp.battleship.message.client.ClientMessage;
+
+record ReceivedMessage(ClientMessage message, int from) {
+    void process(ClientInterpreter interpreter) {
+        message.accept(interpreter, from);
+    }
+}