This app simulates a gravitational environment including the conservation of linear momentum.

Just compile and run it:
make
./grav

Keyboard shortcuts parameters:
left/right/up/down-arrow: move inside the space
i/o: zoom in and out
e: toggle the random-object emitter
f: toggle the frame limiter
esc: stop the application

cli parameter:
-w <width> : set window width
-h <height : set window height