Add Sound support to Loader and Makefile.

Makefile

@@ -5,7 +5,7 @@ game.jar: clean
 	find src/ -type f -name '*.java' -print0 | xargs -0 javac -cp src/ -d compiled/
 	cp -r res/* compiled/
 	echo 'Main-Class: de.teamteamteam.spacescooter.Main' >compiled/manifest.txt
-	jar cvfe game.jar 'de.teamteamteam.spacescooter.Main' -C compiled de -C compiled images
+	jar cvfe game.jar 'de.teamteamteam.spacescooter.Main' -C compiled de -C compiled images -C compiled sounds
 
 run: game.jar
 	java -jar game.jar

src/de/teamteamteam/spacescooter/Main.java

@@ -29,6 +29,7 @@ public class Main {
 		GameConfig.windowWidth = 800;
 		GameConfig.windowHeight = 600;
 		
+		//Instantiate the GameFrame
 		final GameFrame gameFrame = new GameFrame();
 		
 		//Initialize SuperScreen and add to GameFrame, so we can call doPaint() on it.

src/de/teamteamteam/spacescooter/utility/Loader.java

@@ -1,20 +1,37 @@
 package de.teamteamteam.spacescooter.utility;
 
 import java.awt.image.BufferedImage;
+import java.io.BufferedInputStream;
 import java.io.File;
 import java.io.IOException;
 import java.util.Hashtable;
 
 import javax.imageio.ImageIO;
+import javax.sound.sampled.AudioInputStream;
+import javax.sound.sampled.AudioSystem;
+import javax.sound.sampled.UnsupportedAudioFileException;
 
 import de.teamteamteam.spacescooter.screen.LoadingScreen;
 
+/**
+ * This Loader prefetches all required resources for the Game, such as images or
+ * sounds.
+ */
 public class Loader {
 
+	/**
+	 * HashTable containing loaded BufferedImages
+	 */
 	private static Hashtable<String, BufferedImage> images;
 
+	/**
+	 * HashTable containing loaded AudioInputStreams
+	 */
+	private static Hashtable<String, AudioInputStream> sounds;
+
 	static {
 		Loader.images = new Hashtable<String, BufferedImage>();
+		Loader.sounds = new Hashtable<String, AudioInputStream>();
 	}
 
 	
@@ -25,7 +42,7 @@ public class Loader {
 	
 	
 	/**
-	 * Return the loaded BufferedImage by its filename.
+	 * Return the loaded BufferedImage by its relative filename.
 	 */
 	public static BufferedImage getBufferedImageByFilename(String filename) {
 		if(CodeEnvironment.isJar()) {
@@ -36,7 +53,19 @@ public class Loader {
 	}
 
 	/**
-	 * Perform the initial loading of everything and show the progress on the given LoadingScreen.
+	 * Return the loaded AudioInputStream by its relative filename.
+	 */
+	public static AudioInputStream getAudioInputStreamByFilename(String filename) {
+		if(CodeEnvironment.isJar()) {
+			return Loader.sounds.get(filename);
+		} else {
+			return Loader.sounds.get(filename.replace("/", File.separator));
+		}
+	}
+
+	/**
+	 * Perform the initial loading of everything and show the progress on the
+	 * given LoadingScreen.
 	 */
 	public static void load(LoadingScreen loadingScreen) {
 		// get a list of stuff to load and create buffered images
@@ -46,15 +75,21 @@ public class Loader {
 		for(int i=0; i<elements.length; i++) {
 			String e = elements[i];
 			if(e.endsWith(".png")) {
-				if (GameConfig.DEBUG) System.out.println("Creating BufferedImage for: " + e);
+				if(GameConfig.DEBUG)
+					System.out.println("Creating BufferedImage for: " + e);
 				Loader.addBufferedImageByFilename(e);
 			}
+			if(e.endsWith(".wav")) {
+				if(GameConfig.DEBUG)
+					System.out.println("Creating AudioInputStream for: " + e);
+				Loader.addAudioInputStreamByFilename(e);
+			}
 			loadingScreen.increaseCurrentProcessed();
 		}
 	}
 
 	/**
-	 * Load a BufferedImage by filename.
+	 * Load a BufferedImage by relative filename.
 	 */
 	private static void addBufferedImageByFilename(String filename) {
 		try {
@@ -67,4 +102,21 @@ public class Loader {
 
 	}
 
+	/**
+	 * Load an AudioInputStream by relative filename.
+	 */
+	private static void addAudioInputStreamByFilename(String filename) {
+		try {
+			AudioInputStream sound = AudioSystem.getAudioInputStream(new BufferedInputStream(Loader.class.getClassLoader().getResourceAsStream(filename)));
+			Loader.sounds.put(filename, sound);
+		} catch (IOException e) {
+			System.err.println("Unable to load AudioInputStream: " + filename);
+			e.printStackTrace();
+		} catch (UnsupportedAudioFileException e) {
+			System.err.println("Unsupported AudioFormat in file: " + filename);
+			e.printStackTrace();
+		}
+
+	}
+
 }