Gamepad support live

Now using a gamepad to play the game is working!

You can also now switch to any shape with buttons 1, 2 and 3 on keyboard, and on gamepad it's X, Y, B.

Otherwise, you switch with left shoulder button (not the trigger, the digital one), jump with A, latch onto walls with right shoulder trigger, zoom in and out with D-pad up and down.
Otherwise it's twin stick action, move with left stick, camera movement with right stick.

The pyramid has got some minor jump boost to let it be a little bit useful.

I think it's easier to play now... :) Hope you think it feels nice.