Yu-Jen Lin

Refactor IsWall into class Map

2

+ The refactor in #3 was not good enough, so I came up with another one. In this new refactor, raycaster only needs a reference to the Map object instead...

Add Wall collision into the game

3

I also refactored IsWall() into class Game. This allows me to use this function in Game and remove duplicates of IsWall() for cleaner code.