changed Vector2D to Vector2f insted and added sound but the sound is not finnishd yet.

and added a update method to entity for ex the sound entity to update its position in the 
world. Added loging support to whit MultiPrintStream.java

src/ei/engine/util/MultiPrintStream.java

@@ -0,0 +1,93 @@
+package ei.engine.util;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.PrintStream;
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
+
+/**
+ * @author Ziver
+ * this class kan print strings to multiple PrintStreams
+ */
+public class MultiPrintStream extends PrintStream {
+	//the printstreams that will print
+	private PrintStream[] streams;
+	//a instance of this class
+	public static MultiPrintStream out;
+	
+	/**
+	 * this constructor makes a simple PrintStream that prints to the console and to a file
+	 * @param file the file name to outpu to
+	 */
+	public MultiPrintStream(String file){
+		super(new PrintStream(System.out));
+		try {
+			streams = new PrintStream[2];
+			streams[0] = new PrintStream(System.out);
+			streams[1] = new PrintStream(new File(file));
+		} catch (FileNotFoundException e) {
+			System.out.println("Error when declaring PrintStream!!");
+			e.printStackTrace();
+		}
+	    
+	}
+
+	/**
+	 * this constructor takes a array of PrintStreams to be used
+	 * @param streams a array of the streams that will be used
+	 */
+	public MultiPrintStream(PrintStream[] streams){
+	    super(streams[0]);
+	    this.streams = streams;
+	}
+	
+	/**
+	 * this constructor takes a array of PrintStreams to be used
+	 * @param streams a array of the streams that will be used
+	 */
+	public static void makeInstance(MultiPrintStream instanceStream){
+		out = instanceStream;
+	}
+	
+	public boolean checkError(){
+		for(int i=0; i<streams.length ;i++)
+			if(streams[i].checkError())
+				return true;
+		return false;
+	}
+
+	
+	/**
+	 * closes all the PrintStreams
+	 */
+	public void close(){
+		for(int i=0; i<streams.length ;i++)
+			streams[i].close();
+	}
+
+	/**
+	 * prints whit a new line to all the PrintStreams
+	 */
+	public void println(String s){
+		s = getTime() + s;
+		for(int i=0; i<streams.length ;i++)
+			streams[i].println(s);
+	}
+	
+	/**
+	 * prints to all the PrintStreams
+	 */
+	public void print(String s){
+		for(int i=0; i<streams.length ;i++)
+			streams[i].print(s);
+	}
+	
+	private String getTime(){
+		try {
+			return "" + (new SimpleDateFormat("yyyy/MM/dd HH:mm:ss")).parse(""+(new java.util.Date()));
+		} catch (ParseException e) {
+			return "";
+		}
+	}
+}