Merge pull request #1 from shiyingzheng/master

Make stuff work better
Merge pull request #2 from shiyingzheng/master

Fixed incorrectly removed line of sight
Merge pull request #3 from shiyingzheng/master

Made more stuff work
did stuff
Merge branch 'master' of https://github.com/benjaminpstern/AlphaBuild
made resources work
added levels and sprites
Final product