added collision between cars
updating entity
Merge branch 'master' of https://github.com/joshchapman/kartBattle
added weapon to player2 'u'
added weapon to player2 'u'
Merge branch 'master' of https://github.com/joshchapman/kartBattle
Merge pull request #9 from joshchapman/master

collision between cars - only pull if want this implementation