Attempt to give project meh better AI
OBJECTIVE: Get a blue dot path to green square.
LEFT CLICK: To place and remove walls.
MOUSE DRAG: Either green or red square any location.
ENTER: Runs pathfinding algorithm .
SPACE: Clears walls and results.
**The Red:NPC, Green:Player, Black:Solids, Oranage:TestNodes, Blue: Path of NPC
Nodes are tested until NPC reaches Player, and parent nodes are assigned to establish a path.