XBox 360 controller button

Hi,

I have a problem with the XBox 360 controller.

I am using a button to shoot a projectile. But however short the time I press the button, multiple projectiles are shot. I want just one single projectile each time the button is pressed.

Any ideas how I can get a single action (one shot) from a single press to the button (whatever the length the button is pressed)?

Thx

Add System."trigger once while true" condition to the event that checks the pressed button.

Thanks Kyatric ;)