My Sand [Test]

Description

This is a try to making the game of "Falling Sand Game". Though I can only get 2 particles moving at a hopeful speed. To change the element, press the C key. Default is emptyness ( Black ). If you have any ideas on how to improve the speed, it would be excitingly welcome ^.^ Currently this doesn't do anything but have stuff float upwards ( steam ). I'll work on collisions once I get better speeds. ^.^