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+"]";
+	}
+}