title: iPhone disable button that was tapped
body: <p>Alright guys, I'm sure there is a simple solution to this problem. I have four IBActions;up,down,left,right. I only want One action to execute leaving the other three available, e.g. If I press up, only down,left and right are available to be pressed, so I can't press the same action twice in a row. And it's the same for the other actions, e.g. I can only press left once then must press an action for right,down, or up. If anyone knows the solution to this I would appreciate the help. Thank you! </p>