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/scene/Entity.java

@@ -3,8 +3,7 @@
  */
 package ei.engine.scene;
 
-import ei.engine.math.Vector2D;
-import ei.engine.math.Vector2I;
+import ei.engine.math.Vector2f;
 
 /**
  * This class is the root class of all the objects that
@@ -17,13 +16,13 @@ public abstract class Entity {
 	private String name;  
 	
 	/** The location of this entity in pixels*/
-	private Vector2D location;	
+	private Vector2f location;	
 	  
 	/** The rotation of this entity in pixels*/
-	private Vector2D rotation;
+	private Vector2f rotation;
 	
 	/** The size of this entity in pixels*/
-	private Vector2I size;
+	private Vector2f size;
 	
 	/**
 	 * creates a new entity
@@ -32,7 +31,7 @@ public abstract class Entity {
 	 */
 	public Entity(String name){
 		this.name = name;
-		location = new Vector2D(0,0);
+		location = new Vector2f(0,0);
 	}
 	
 	/**
@@ -47,7 +46,7 @@ public abstract class Entity {
 	 * 
 	 * @return The Location of the entity
 	 */
-	public Vector2D getLocation() {
+	public Vector2f getLocation() {
 		return location;
 	}
 	
@@ -56,7 +55,7 @@ public abstract class Entity {
 	 * 
 	 * @param l The location of the entity
 	 */
-	public void setLocation(Vector2D l) {
+	public void setLocation(Vector2f l) {
 		location = l;
 	}
 	
@@ -65,7 +64,7 @@ public abstract class Entity {
 	 * 
 	 * @return The Location of the entity
 	 */
-	public Vector2D getRotation() {
+	public Vector2f getRotation() {
 		return rotation;
 	}
 	
@@ -74,7 +73,7 @@ public abstract class Entity {
 	 * 
 	 * @param r The rotation of the entity
 	 */
-	public void setRotation(Vector2D r) {
+	public void setRotation(Vector2f r) {
 		rotation = r;
 	}
 	
@@ -83,7 +82,7 @@ public abstract class Entity {
 	 * 
 	 * @return The Location of the entity
 	 */
-	public Vector2I getSize() {
+	public Vector2f getSize() {
 		return size;
 	}
 	
@@ -92,12 +91,17 @@ public abstract class Entity {
 	 * 
 	 * @param s The size of the entity
 	 */
-	public void setSize(Vector2I s) {
+	public void setSize(Vector2f s) {
 		size = s;
 	}
 	
 	/**
-	 * the render method shuold beimplemented for every entity
+	 * the render method should be implemented for every entity
 	 */
 	public abstract void render();
+	
+	/**
+	 * the update method can be implemented for every entity
+	 */
+	public void update(){}
 }

src/ei/engine/scene/Node.java

@@ -4,70 +4,79 @@ import java.util.ArrayList;
 
 public class Node extends Sprite {
 	/** the sprites of this node */
-	protected ArrayList<Sprite> sprites;
+	protected ArrayList<Entity> entities;
 	
 	public Node(String name) {
 		super(name);
-		sprites = new ArrayList<Sprite>();
+		entities = new ArrayList<Entity>();
 	}
 	
 	/**
-	 * Add a Sprite
+	 * Add a Entity
 	 * @param s the Sprite to add
-	 * @return false if the Sprite alredy exist else true
+	 * @return false if the Entity alredy exist else true
 	 */
-	public boolean add(Sprite s){
-		if(!sprites.contains(s)){
-			sprites.add(s);
+	public boolean add(Entity s){
+		if(!entities.contains(s)){
+			entities.add(s);
 			return true;
 		}
 		return false;
 	}
 	
 	/**
-	 * get a Sprite
-	 * @param name the name of Sprite to get
-	 * @return null if the Sprite wasnt found
+	 * get a Entity
+	 * @param name the name of Entity to get
+	 * @return null if the Entity wasnt found
 	 */
-	public Sprite get(String name){
+	public Entity get(String name){
 		int i = getId(name);
 		if(i >= 0){
-			return sprites.get(i);
+			return entities.get(i);
 		}
 		return null;
 	}
 	
 	/**
-	 * remove a Sprite
-	 * @param name the name of Sprite to remove
-	 * @return false if the Sprite alredy exist else true
+	 * remove a Entity
+	 * @param name the name of Entity to remove
+	 * @return false if the Entity alredy exist else true
 	 */
 	public boolean remove(String name){
 		int i = getId(name);
 		if(i >= 0){
-			sprites.remove(i);
+			entities.remove(i);
 			return true;
 		}
 		return false;
 	}
 	
 	/**
-	 * Draw all the sprites in the node
+	 * Draw all the Entities in the node
 	 */
 	public void render() {
-		for(int i=0; i<sprites.size() ;i++){
-			sprites.get(i).render();
+		for(int i=0; i<entities.size() ;i++){
+			entities.get(i).render();
 		}
 	}
 	
 	/**
-	 * Searches for the given name of a sprite
-	 * @param name The name of the sprite
-	 * @return The index of the sprite
+	 * update all the Entities in the node
+	 */
+	public void update() {
+		for(int i=0; i<entities.size() ;i++){
+			entities.get(i).update();
+		}
+	}
+	
+	/**
+	 * Searches for the given name of a Entity
+	 * @param name The name of the Entity
+	 * @return The index of the Entity
 	 */
 	private int getId(String name){
-		for(int i=0; i<sprites.size() ;i++){
-			if(sprites.get(i).getName().equals(name)){
+		for(int i=0; i<entities.size() ;i++){
+			if(entities.get(i).getName().equals(name)){
 				return i;
 			}
 		}

src/ei/engine/scene/Sprite.java

@@ -4,8 +4,8 @@ import java.io.IOException;
 
 import org.lwjgl.opengl.GL11;
 
-import ei.engine.util.Texture;
-import ei.engine.util.TextureLoader;
+import ei.engine.texture.Texture;
+import ei.engine.texture.TextureLoader;
 
 /**
  * Implementation of sprite that uses an OpenGL quad and a texture