     var lastUpdateTime: NSTimeInterval = 0
     var dt: NSTimeInterval = 0
     let zombieMovePointsPerSec: CGFloat = 480.0
+    let catMovePointsPerSec:CGFloat = 480.0
+
     var velocity = CGPointZero
     let playableRect: CGRect
     var lastTouchLocation: CGPoint?

        let mySize = background.size
        println("Size: \(mySize)")
        
        zombie.position = CGPoint(x: 400, y: 400)
        addChild(zombie)
        

    
    
    
    
}
