Project 2:
	Description

Projectiles and walls:
	What should happen?
	Let's make projectiles stop when they hit walls
		So they get stuck
		Could have them blow up or fragment or something
		But you can make a shelter this way

Fragments and is_on:
	Could import player is_on, don't need platform/elevator piece

If you go somewhere, maybe something should happen!

Walk to the right spot, and something happens

We'll add an activation object:
	Collision check will check to see if the player collided with this object
	If so, call a callback function
	Maybe give three options:
		Once:  Call the callback once, then remove the location
		On entry:  Call the callback whenever the player newly collides
		Many:  Call it every time the player is detected in that location
	Don't return a collision normal, unless we want to keep the player out!
		We might want this (locked door, some kind of switch, etc)

An activate action:
	We'll need a key
	Activation region right in front of the player maybe?
		Any activatable objects with a location in this region are activated

Things I'd like soon:
	HUD
	Fragments bouncing off the side of objects
	Organization (keeps getting put off for more exciting things)