Collision Detection

Spatial Hashing

Spatial hashing seems to best handle cases where items are evenly distributed without a high distribution of sizes (too many large sizes cause items to be found in too many buckets).

Look into hierarchical spatial hashes and see if it would be worth to implement: https://gist.github.com/kirbysayshi/1760774

Alternatives:

• http://www.randygaul.net/2013/08/06/dynamic-aabb-tree/
• Quad/Oct tree

Physics

TODO: Highest importance:

• Basic Physics: acceleration, mass, velocity, gravity, forces, etc.
• Basic Camera: coded, non-autonomous movement, world/screen coordinates
• Basic Stages: changing "worlds", loading screens
• Basic DOM interaction: message bus, event handlers