Triangular 2048

This code is my first (and currently last) experience in game development using JavaScript.

How To Play

The game is basically a triangular version of 2048 with a simple 3-D animation.

Keyboard

'WEASDF' for moving tiles around.
'N' for new game.
'U' for undo.

Mouse/Touch

Drag and drop for moving tiles.
Press 'New Game' and see what will happen!
No undo!