Sound pausing/resuming

core/src/com/me/pacman/Sound.java

@@ -26,11 +26,14 @@ public class Sound {
 
     private PacDude game;
     private long[] playing;
+    private long[] looping;
 
     public Sound(PacDude game) {
         this.game = game;
         this.playing = new long[Effect.values().length];
+        this.looping = new long[Effect.values().length];
         Arrays.fill(this.playing, -1);
+        Arrays.fill(this.looping, -1);
     }
 
     private float volume() {
@@ -42,23 +45,26 @@ public class Sound {
     }
 
     public long play(Effect effect) {
-        return muted? -1 : getSound(effect).play(volume());
-    }
-
-    public long loop(Effect effect) {
-        if (muted) {
-            return -1;
-        }
-        long id = getSound(effect).loop(volume());
+        long id = getSound(effect).play(volume());
         playing[effect.ordinal()] = id;
         return id;
     }
 
-    public boolean isLooping(Effect effect) {
+    public long loop(Effect effect) {
+        long id = getSound(effect).loop(volume());
+        looping[effect.ordinal()] = id;
+        return id;
+    }
+
+    public boolean isPlaying(Effect effect) {
         return playing[effect.ordinal()] > -1;
     }
 
-    public void stop(Effect effect) {
+    public boolean isLooping(Effect effect) {
+        return looping[effect.ordinal()] > -1;
+    }
+
+    public void stopPlaying(Effect effect) {
         com.badlogic.gdx.audio.Sound sound = getSound(effect);
         long id = playing[effect.ordinal()];
         if (id > -1) {
@@ -67,12 +73,59 @@ public class Sound {
         }
     }
 
-    public void stopAll() {
-        for (int i = 0; i < playing.length; i++) {
-            if (playing[i] < 0) {
-                continue;
+    public void stopLooping(Effect effect) {
+        com.badlogic.gdx.audio.Sound sound = getSound(effect);
+        long id = looping[effect.ordinal()];
+        if (id > -1) {
+            sound.stop(id);
+            looping[effect.ordinal()] = -1;
+        }
+    }
+
+    public void stopPlays() {
+        for (int i = 0; i < playing.length; i++) {
+            if (playing[i] > -1) {
+                getSound(Effect.values()[i]).stop(playing[i]);
+                playing[i] = -1;
+            }
+        }
+    }
+
+    public void stopLoops() {
+        for (int i = 0; i < looping.length; i++) {
+            if (looping[i] > -1) {
+                getSound(Effect.values()[i]).stop(looping[i]);
+                looping[i] = -1;
+            }
+        }
+    }
+
+    public void stopAll() {
+        stopPlays();
+        stopLoops();
+    }
+
+    public void pauseAll() {
+        for (int i = 0, n = Effect.values().length; i < n; i++) {
+            com.badlogic.gdx.audio.Sound sound = getSound(Effect.values()[i]);
+            if (playing[i] > -1) {
+                sound.pause(playing[i]);
+            }
+            if (looping[i] > -1) {
+                sound.pause(looping[i]);
+            }
+        }
+    }
+
+    public void resumeAll() {
+        for (int i = 0, n = Effect.values().length; i < n; i++) {
+            com.badlogic.gdx.audio.Sound sound = getSound(Effect.values()[i]);
+            if (playing[i] > -1) {
+                sound.resume(playing[i]);
+            }
+            if (looping[i] > -1) {
+                sound.resume(looping[i]);
             }
-            stop(Effect.values()[i]);
         }
     }
 

core/src/com/me/pacman/state/PlayState.java

@@ -104,7 +104,7 @@ public class PlayState extends LevelState {
             if ((ghost.currentBehaviour instanceof ReturnToBase
                     || ghost.currentPath instanceof EnterGhostHousePath) && !ghost.inHouse) {
                 if (!game.sound.isLooping(Sound.Effect.RETURN_BASE)) {
-                    game.sound.stopAll();
+                    game.sound.stopLoops();
                     game.sound.loop(Sound.Effect.RETURN_BASE);
                 }
                 return;
@@ -113,14 +113,14 @@ public class PlayState extends LevelState {
 
         if (frightTimer > 0) {
             if (!game.sound.isLooping(Sound.Effect.FRIGHT)) {
-                game.sound.stopAll();
+                game.sound.stopLoops();
                 game.sound.loop(Sound.Effect.FRIGHT);
             }
             return;
         }
 
         if (!game.sound.isLooping(Sound.Effect.SIREN)) {
-            game.sound.stopAll();
+            game.sound.stopLoops();
             game.sound.loop(Sound.Effect.SIREN);
         }
     }
@@ -339,7 +339,7 @@ public class PlayState extends LevelState {
         secondsSinceLastDot = 0;
 
         if (pelletsRemaining == 0) {
-            game.sound.stopAll();
+            game.sound.stopLoops();
             setGameState(GameState.ROUND_WON_WAIT);
         }
     }
@@ -365,7 +365,7 @@ public class PlayState extends LevelState {
     }
 
     private void pacmanCaught() {
-        game.sound.stop(Sound.Effect.SIREN);
+        game.sound.stopLooping(Sound.Effect.SIREN);
         pacman.moving = false;
         pelletsEatenSinceDeath = 0;
         pelletsEatenSinceDeathCounterEnabled = true;
@@ -521,6 +521,11 @@ public class PlayState extends LevelState {
                 case Input.Keys.ESCAPE:
                 case Input.Keys.P:
                     paused = !paused;
+                    if (paused) {
+                        game.sound.pauseAll();
+                    } else {
+                        game.sound.resumeAll();
+                    }
                     break;
                 case Input.Keys.N:
                     preNewGame();