Week1:
https://wordpress.com/read/blogs/142440897/posts/20
Week2:
https://thecodingspartan.wordpress.com/2018/02/15/2017-02-15-enemy-follow-move-towards-player-in-a-2d-environment-not-pathfinding/
Week3:
https://wordpress.com/read/blogs/138847846/posts/59
