Press 'F' to set the mode to fire, 'S' for sand, and 'W' for wall. click to place the element. Press 'C' to clear all the walls. The left variable is the amount of pixels in the sim, and the right is the mode. Sand and fire have different behaviors, sand will pile up, and fire will burn sand (Warning: Buggy!), and randomly move and disappear.
100% mine. The amount of sand is limited to 15, and the fire limit is 10, for lag reasons. If someone can fix this lag, which is caused by the engine checking and altering all the positions each frame, I'll be able to remove this limit. removing the random walls will help the lag. Yes, it is laggy.
