added a Entity.java class that handles position rotation and collition. collition has jet not been made.

src/ei/engine/math/Vector2D.java

@@ -0,0 +1,42 @@
+package ei.engine.math;
+
+public class Vector2D {
+	private double x;
+	private double y;
+	
+	public Vector2D(double x, double y){
+		this.x = x;
+		this.y = y;
+	}
+	
+	/**
+	 * Get the X value
+	 * 
+	 * @return the x value in the vector
+	 */
+	public double getX(){
+		return x;
+	}
+	
+	/**
+	 * Get the Y value
+	 * 
+	 * @return the y value in the vector
+	 */
+	public double getY(){
+		return y;
+	}
+	
+	/**
+	 * Add to the vectro
+	 * @param i The amount to add
+	 */
+	public void add(double i){
+		x += i;
+		y += i;
+	}
+	
+	public String toString(){
+		return "Vector2I["+x+","+y+"]";
+	}
+}

src/ei/engine/scene/Entity.java

@@ -0,0 +1,103 @@
+/**
+ * 
+ */
+package ei.engine.scene;
+
+import ei.engine.math.Vector2D;
+import ei.engine.math.Vector2I;
+
+/**
+ * This class is the root class of all the objects that
+ * will show on the scrren. This class handles the position
+ * and rotation and the colitions of the objects.
+ * @author Ziver
+ */
+public abstract class Entity {
+	/** The name of this sprite */
+	private String name;  
+	
+	/** The location of this entity in pixels*/
+	private Vector2D location;	
+	  
+	/** The rotation of this entity in pixels*/
+	private Vector2D rotation;
+	
+	/** The size of this entity in pixels*/
+	private Vector2I size;
+	
+	/**
+	 * creates a new entity
+	 * 
+	 * @param name The name of the entity
+	 */
+	public Entity(String name){
+		this.name = name;
+		location = new Vector2D(0,0);
+	}
+	
+	/**
+	 * @return The name of the entity
+	 */
+	public String getName() {
+		return name;
+	}
+
+	/**
+	 * Get the Location of the entity
+	 * 
+	 * @return The Location of the entity
+	 */
+	public Vector2D getLocation() {
+		return location;
+	}
+	
+	/**
+	 * set the location of this entity in pixels
+	 * 
+	 * @param l The location of the entity
+	 */
+	public void setLocation(Vector2D l) {
+		location = l;
+	}
+	
+	/**
+	 * Get the rotation of the entity
+	 * 
+	 * @return The Location of the entity
+	 */
+	public Vector2D getRotation() {
+		return rotation;
+	}
+	
+	/**
+	 * set the rotation of this entity in pixels
+	 * 
+	 * @param r The rotation of the entity
+	 */
+	public void setRotation(Vector2D r) {
+		rotation = r;
+	}
+	
+	/**
+	 * Get the size of the entity
+	 * 
+	 * @return The Location of the entity
+	 */
+	public Vector2I getSize() {
+		return size;
+	}
+	
+	/**
+	 * set the size of this entity in pixels
+	 * 
+	 * @param s The size of the entity
+	 */
+	public void setSize(Vector2I s) {
+		size = s;
+	}
+	
+	/**
+	 * the render method shuold beimplemented for every entity
+	 */
+	public abstract void render();
+}

src/ei/engine/scene/Sprite.java

@@ -4,7 +4,6 @@ import java.io.IOException;
 
 import org.lwjgl.opengl.GL11;
 
-import ei.engine.math.Vector2I;
 import ei.engine.util.Texture;
 import ei.engine.util.TextureLoader;
 
@@ -16,15 +15,9 @@ import ei.engine.util.TextureLoader;
  * @author Brian Matzon
  * @author Ziver Koc
  */
-public class Sprite {
+public class Sprite extends Entity {
 	/** The texture that stores the image for this sprite */
 	private Texture texture;
-  
-	/** The location of this sprite in pixels*/
-	private Vector2I location;
-	
-	/** The name of this sprite */
-	private String name;
 	
 	/**
 	 * Create a new empty sprite
@@ -33,9 +26,8 @@ public class Sprite {
 	 * @param ref A reference to the image on which this sprite should be based
 	 */
 	public Sprite(String name) {
-			this.name = name;			
-			texture = null;			
-			location = new Vector2I(0,0);
+		super(name);		
+		texture = null;			
 	}
 	
 	/**
@@ -45,10 +37,9 @@ public class Sprite {
 	 * @param texture The texture to use
 	 */
 	public Sprite(String name, Texture texture) {
-		this.name = name;			
+		super(name);
 		this.texture = texture;			
-		this.location = new Vector2I(texture.getImageWidth(),texture.getImageHeight());
-}
+	}
 	
 	/**
 	 * Create a new sprite from a specified image.
@@ -57,11 +48,10 @@ public class Sprite {
 	 * @param ref A reference to the image on which this sprite should be based
 	 */
 	public Sprite(String name, String ref) {
+		super(name);
 		try {
-			this.name = name;			
 			this.texture = TextureLoader.getTextureLoaderInstance().getTexture(ref);
-			
-			this.location = new Vector2I(texture.getImageWidth(),texture.getImageHeight());
+		
 		} catch (IOException e) {
 			// a tad abrupt, but our purposes if you can't find a 
 			// sprite's image you might as well give up.
@@ -94,41 +84,6 @@ public class Sprite {
 		return texture.getImageHeight();
 	}
 	
-	/**
-	 * @return The name of this sprite
-	 */
-	public String getName() {
-		return name;
-	}
-
-	/**
-	 * Get the Location of the sprite
-	 * 
-	 * @return The Location of the sprite
-	 */
-	public Vector2I getLocation() {
-		return location;
-	}
-
-	/**
-	 * set the location of this sprite in pixels
-	 * 
-	 * @param x The x coordinate of the sprite
-	 * @param y The y coordinate of the sprite
-	 */
-	public void setLocation(int x, int y) {
-		setLocation(new Vector2I(x,y));
-	}
-	
-	/**
-	 * set the location of this sprite in pixels
-	 * 
-	 * @param v The location of the sprite
-	 */
-	public void setLocation(Vector2I v) {
-		location = v;
-	}
-	
 	/**
 	 * Draw the sprite
 	 */
@@ -140,7 +95,7 @@ public class Sprite {
 		texture.bind();
 
 		// translate to the right location and prepare to draw
-		GL11.glTranslatef(location.getX(), location.getY(), 0);		
+		GL11.glTranslatef((int)getLocation().getX(), (int)getLocation().getY(), 0);		
 		GL11.glColor3f(1,1,1);
 
 		// draw a quad textured to match the sprite

src/ei/game/gamestate/InGameState.java

@@ -14,7 +14,6 @@ public class InGameState extends GameState{
 		rootNode = new Node("InGameNode");
 		s1 = new Sprite("tank","data/units/tank.png");
 		rootNode.add(s1);
-		s1.setLocation(1, 1);
 	}
 	
 	@Override
@@ -24,7 +23,7 @@ public class InGameState extends GameState{
 
 	@Override
 	public void update() {
-		s1.getLocation().add(1);
+		s1.getLocation().add(0.1);
 	}
 
 }