[request]-trigger happy script needed!

I am making a techinque in my project right now and it's called trigger happy, I can't find the script to use it though, for those who don't know what trigger happy does, you press a button as fast as you can to shoot out one bullet each time you press that button and when the timer in the corner runs out you can't shoot till your next turn..if any one could please help me find a script or make one that does that then that would awesome, btw thanks in advance, you will be credited for the scrpit