CONTROLS

• f fullscreen/windowed mode
• p pause/unpause
• . step 1 update
• l load saved state
• s save current state

Makes use of:

• glfw for window context
• OpenGL for rendering

PROBLEMS

• This one somehow fixed itself

• If a particle has negative gravity (eg. smoke rising) a double buffered grid is needed
  • Otherwise as the rows get evaluated bottom to top, the particles would teleport to the top in only one update
• Additional grids could be needed used for things like particle velocities, that are independent from the particle type
• At that point a particle type ID might be better than the full-color value, although for now the color is fine
• Multiple particle type IDs could be powers of 2, so that they can be used as a bitmask for elegant interactions

IDEAS

• Change particle model to type_id rather than color

• Give particles additional properties such as

  • flammability
  • mass (displacement, gravity direction)
  • Stasis (true / false)
  • Emissivity

• Add non-simulated particles for effect like splashes

• Add gravity and momentum into simulation

• Write instructions into stdout

• Keeping record of past frames

  • Export video
  • Step backwards

• Export frames as images

• Import images as frame

• Save and load state of grid

• Add mouse based particle brush

• Add particle brush type and size input

Inspiration

Cellular Automata Particle simulation inspired by

• https://www.youtube.com/watch?v=prXuyMCgbTc&ab_channel=GDC
• https://dan-ball.jp/en/javagame/dust/

More

• https://github.com/GameEngineering/EP01_SandSim/blob/master/source/main.c
• https://www.youtube.com/watch?v=wZJCQQPaGZI&ab_channel=Winterdev
• https://www.youtube.com/watch?v=5Ka3tbbT-9E&ab_channel=MARF