Zig sand game

To get sdl2 dependency:

git clone https://github.com/MasterQ32/SDL.zig.git

Controls

• 1: Switch to add/remove mode
• 2: Switch to temperature mode

Add/remove mode

• Mouse left: Add selected material
• Mouse right: Remove material
• w: Select water
• s: Select sand
• a: Select wall
• f: Select fire
• r: Select smoke
• d: Select wood
• h: Select heater
• c: Select cooler

Temperature mode

• Mouse left: Add temperature
• Mouse right: Remove temperature