added red bumper picture
Added bumpers and a new background image
Car/car and puck collisions working well.
Bumper collision code added, but not used or tested yet. I'm expecting issues.
Arena bounding box is correct.
Other stuff I forgot.
Goal scoring works and end game works.
Bumpers still not really implemented. They don't bump, just block.
Cars are round. Probably won't have time to change this.
TODO: work on controls some.
Merge branch 'master' of https://github.com/Team-Bumpin/comp-worlds
Bumpers working pretty well.
There may be some minor glitches with collisions edge-cases, like when two entities are moving in nearly the same direction at nearly the same speed, but they're not egregious and don't seem to hurt gameplay.
Controls need work.