Add quad tree data type.
Add function to easily create SDL_Rects.
Add a collision_box.
Start collision detection.
Project updates.
Merge branch 'develop' of https://github.com/gjb7/it276-zelda into feature/collision-detection
Add functions for entity geometry.
Use entity geometry functions.
Set the player's collision box.
Add debug option to draw collision boxes.
Handle drawing collision boxes.
Turn on rendering of collision boxes.
Add function pointer for collisions.
Add checks for valid collision boxes.
Do collision detection! :D
Set enemy collision_box.
Add testGuard to gameMap instead of gameWorld.
Don't alloc a list.
Change to use entities instead of rects.
Make constants.