pre merge
Merge branch 'master' of https://github.com/jianshentan/cs032_game
Merge branch 'master' of https://github.com/jianshentan/cs032_game
Enemy can see or not see player based on location, environment
Merge branch 'master' of https://github.com/jianshentan/cs032_game
Enemy more or less finished w/ number of AI behaviors
Merge branch 'master' of https://github.com/jianshentan/cs032_game