insert bgmusic

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

@@ -0,0 +1,121 @@
+////////////////////////////////////////
+// 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 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;
+
+import static pp.util.PreferencesUtils.getPreferences;
+
+/**
+ * An application state that plays sounds.
+ */
+public class BgMusic extends AbstractAppState{
+    private static final Logger LOGGER = System.getLogger(BgMusic.class.getName());
+    private static final Preferences PREFERENCES = getPreferences(BgMusic.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/Music/bgMusic.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);
+    }
+}