Sand Simulation Godot Edition

This is just a little project I made in Godot. Controls: right click: draw left click: erase number 1: switch to bedrock number 2: switch to sand number 3: switch to water number 4: switch to lava r: restart esc: quit middle mouse wheel up: zoom camera in middle mouse wheel down: zoom camera out ctr + middle mouse wheel up: decrease brush size ctr + middle mouse wheel down: increase brush size