Implemented all csf handling

model/SongHandler.java

@@ -0,0 +1,54 @@
+package model;
+
+import java.io.File;
+import java.util.ArrayList;
+import java.util.List;
+
+import main.Window;
+import audio.Song;
+import audio.io.DirScanner;
+
+public class SongHandler {
+	
+	private List<Song> songs;
+	
+	private Song currentSong;
+	private int currentIndex;
+	
+	private File dir;
+	
+	public SongHandler()
+	{
+		songs = new ArrayList<Song>();
+		
+		currentSong = null;
+		currentIndex = 0;
+		
+		if(Window.ON_RASP)
+			dir = new File(System.getProperty( "user.home" ) + "/ColorStrike/Songs");
+		else
+			dir = new File("Songs");
+		
+		songs = DirScanner.scanDirectories(dir);
+		
+		currentSong = songs.get(currentIndex);
+		
+		for(Song s : songs)
+		{
+			System.out.println(s.getTitle());
+		}
+	}
+	
+	public void next()
+	{
+		currentIndex++;
+		currentIndex%=songs.size();
+		currentSong = songs.get(currentIndex);
+	}
+	public void previous()
+	{
+		currentIndex--;
+		currentIndex%=songs.size();
+		currentSong = songs.get(currentIndex);
+	}
+}