added background music

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

@@ -22,6 +22,7 @@ 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;
@@ -267,6 +268,7 @@ public class BattleshipApp extends SimpleApplication implements BattleshipClient
         stateManager.detach(stateManager.getState(DebugKeysAppState.class));
 
         attachGameSound();
+        attachGameMusic();
         stateManager.attachAll(new EditorAppState(), new BattleAppState(), new SeaAppState());
     }
 
@@ -280,6 +282,15 @@ public class BattleshipApp extends SimpleApplication implements BattleshipClient
         stateManager.attach(gameSound);
     }
 
+    /**
+     * Attaches the game sound 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.

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

@@ -11,6 +11,9 @@ import com.simsilica.lemur.Button;
 import com.simsilica.lemur.Checkbox;
 import com.simsilica.lemur.Label;
 import com.simsilica.lemur.style.ElementId;
+
+import pp.battleship.client.gui.GameMusic;
+import pp.battleship.client.gui.VolumeSlider;
 import pp.dialog.Dialog;
 import pp.dialog.StateCheckboxModel;
 import pp.dialog.TextInputDialog;
@@ -33,6 +36,7 @@ class Menu extends Dialog {
     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.
@@ -42,9 +46,14 @@ class Menu extends Dialog {
     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.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)
@@ -65,6 +74,11 @@ class Menu extends Dialog {
         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.
      */

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

@@ -0,0 +1,111 @@
+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;
+
+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 //TODO
+     */
+    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;
+    }
+
+    /** TODO
+     * 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;
+        else if(!isEnabled() && enabled) {
+            if (music != null) music.play();
+        } else if (isEnabled() && !enabled) {
+            if (music != null) 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());
+    }
+
+    public void setVolume(float vol){
+        music.setVolume(vol);
+        PREFERENCES.putFloat(VOLUME_PREF, vol);
+    }
+}

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

@@ -0,0 +1,25 @@
+package pp.battleship.client.gui;
+
+import com.simsilica.lemur.Slider;
+
+public class VolumeSlider extends Slider {
+
+    private final GameMusic music;
+
+    private double vol;
+
+    public VolumeSlider(GameMusic music) {
+        super();
+        this.music = music;
+        vol = GameMusic.volumeInPreferences();
+        getModel().setPercent(vol);
+    }
+
+    public void update() {
+        if (vol != getModel().getPercent()) {
+            vol = getModel().getPercent();
+            music.setVolume( (float) vol);
+        }
+    }
+    
+}

Projekte/battleship/model/src/main/resources/battleship.properties

@@ -29,6 +29,7 @@ wait.its.not.your.turn=Wait, it's not your turn!!
 menu.quit=Quit game
 menu.return-to-game=Return to game
 menu.sound-enabled=Sound switched on
+menu.background-sound-enabled=Background music switched on
 menu.map.load=Load map from file...
 menu.map.save=Save map in file...
 label.file=File:

Projekte/battleship/model/src/main/resources/battleship_de.properties

@@ -29,6 +29,7 @@ wait.its.not.your.turn=Warte, Du bist nicht dran!!
 menu.quit=Spiel beenden
 menu.return-to-game=Zurück zum Spiel
 menu.sound-enabled=Sound eingeschaltet
+menu.background-sound-enabled=Hintergrundmusik eingeschaltet
 menu.map.load=Karte von Datei laden...
 menu.map.save=Karte in Datei speichern...
 label.file=Datei: