I know there must be a lot of these out there but I am going to post one anyways. I made 11 images in paint, showing a health bar that gets drained by ten for each photo (photo 1 has 100 health, photo 11 has 0). I want to make it so that every time an enemy hits the tower, the HP bar switches to the next image in order to show the damage dealt and health remaining. Someone please help me with this as I do not know how to do this.

