A simple-as-possible 2D physics rigid-body physics engine for Elm. Supports only bubbles (circles) and boxes (axis-aligned rectangles).
Here's an example (source) of the engine in action. To run the example locally, start elm-reactor in the examples directory.
It does this:
- resolve collisions between bodies of different mass and bounciness.
- gravity (ignores mass) / global time-varying forces (mass-dependent)
It doesn't do:
- arbitrary polygons
- friction / drag
- rotation
- time-integrated movement
- graphics
- colliding unstoppable forces with immovable objects (infinite masses will be glitchy)