how would i go about adjusting a projectiles velocity by pressing a key
quick example
click a
add 1 to bullets velocity
minimum 200 maximum 400
in my game im trying to set it up so you have to determine the angle and velocity of a sniper rifle in order to reach your target im fairly new to this program and have little skills on mathmatic equations ive searched all examples i just cant seem to find any forum post with the anser to my question PLEASE HELP