Multitouch

[stuartpb]

It would be cool if touch were changed to be an array of (up to 10)? touches on-screen, for recognizing multi-touch. Each touch could be a vec2, with touches that aren't down set to (-1, -1).

(I had some crazier ideas about representing touch state, including the vec3 pattern Shadertoy uses for mouse input where z acts as an up/down boolean, but ultimately the best ideas I had were just awkward gestures at an incomplete persistence model.)

[stuartpb]

That said, one sensible value for a z attribute, with regard to shaders, would be that touch's touch size.

[markusfisch]

Cool idea! I was already planing to support multitouch with the next release but haven't thought about the touch size in z. Will come!

[markusfisch]

Landed in master.