Algodoo

Its a devastating nail gun.

Mousecontrolled:
Move- Aim
Left Mousebutton - shoot
Right Mousebutton - put 1 nail in cache (max 3) and then you can shoot the cached amount

3 displays:
top for shootdistance
left for cached nails
bottom right for the amount of nail you shot

green light is on when you can shot else the red

used the code from kilinichs hingemousecursor(forgot the name) to make a point at the target

and there are some eyecandy
the main idea for the shape was the medics gun from tf2

have fun