Add dialogue sound

saves/Level3-dialogue.txt

@@ -1,4 +1,3 @@
-$Villain
 Oh you made it past the first real level
 Feeling acomplished aren't you...
 

src/DialogueMenu.java

@@ -19,6 +19,7 @@ public class DialogueMenu extends TextBox implements Serializable {
     public int currentFrame = 0;
     public int frameCounter = 0;
     public boolean isNarrator;
+    public SoundWrapper currentSound;
 
     public DialogueMenu(int y, int yHeight, Font font, BufferedImageWrapper portrait, boolean isNarrator) {
         super(y, GamePanel.GAME_WIDTH - PORTRAIT_WIDTH - PADDING*3, yHeight, 0, font, null, null);
@@ -104,13 +105,15 @@ public class DialogueMenu extends TextBox implements Serializable {
         if (frameCounter >= FREQUENCY) {
             frameCounter -= FREQUENCY;
             currentFrame += 1;
-            // play dialogue sound
+            // play dialogue sound if it is not already playing
+            if (currentSound == null || !currentSound.sound.clip.isOpen()) {
                 try {
-                UtilityFunction.playSound("sound/pen.wav");
+                    currentSound = UtilityFunction.playSound("sound/pen.wav");
                 } catch (UnsupportedAudioFileException | LineUnavailableException | IOException e) {
                     throw new RuntimeException(e);
                 }
             }
+        }
         // set font of string to be drawn
         g.setFont(font);
         drawCenteredTextBox(g, text, backgroundColor, textColor);
@@ -119,6 +122,11 @@ public class DialogueMenu extends TextBox implements Serializable {
         // if the text has been completely drawn (nothing left to animate), return true
         if (currentFrame >= text.length()) {
             currentFrame = 0;
+            // if the text is not being animated, there is no reason to play the sound either, so it is closed and then dereferenced
+            if (currentSound != null) {
+                currentSound.sound.close();
+                currentSound = null;
+            }
             return true;
         } else { // otherwise, return false
             return false;

src/UtilityFunction.java

@@ -44,14 +44,15 @@ public final class UtilityFunction {
     }
 
     // start playing a sound that is located at filePath
-    public static void playSound(String filePath) throws UnsupportedAudioFileException, LineUnavailableException, IOException {
+    public static SoundWrapper playSound(String filePath) throws UnsupportedAudioFileException, LineUnavailableException, IOException {
-        Sound sound = new Sound(filePath);
+        SoundWrapper sound = new SoundWrapper(filePath);
-        sound.clip.addLineListener(e -> {
+        sound.sound.clip.addLineListener(e -> {
             // close clip after sound is done playing
             if (e.getType() == LineEvent.Type.STOP) {
-                sound.close();
+                sound.sound.close();
             }
         });
-        sound.start();
+        sound.sound.start();
+        return sound;
     }
 }