I'm trying to make a zombie survival game when you shoot zombies with a gun. but the problem is that my gun doesn't have a timer on it and just continually shoots. Is anyone able to help me? Code for the gun \/ \/ \/ public void act { //Shooting code here \/ \/ \/ if (Greenfoot.isKeyDown("space")){ fire(); wait(10); } } // fire the bullet public void fire() { Bullet bullet = new Bullet(); getWorld().addObject(bullet, getX(), getY()); } } All the other code works, its just that the wait command doesn't work.