Added a main menu and fixed som things. added explotions to and fixed the economy

src/ei/game/player/Player.java

@@ -39,6 +39,14 @@ public abstract class Player {
 		unitsNode.remove(u.getNode());
 	}
 	
+	public GameEntity getUnit(int i){
+		return units.get(i);
+	}
+	
+	public int unitCount(){
+		return units.size();
+	}
+	
 	public Node getNode(){
 		return unitsNode;
 	}