Simple JS Physics

Modeling physics-based animations in the browser is fairly trivial using JS and some simple arithmetic.

class Body {
  pos: Vec;
  vel: Vec;
  acc: Vec;
  apply(force: Vec) {
    this.acc.add(force);
  }
  step() {
    this.vel.add(this.acc);
    this.pos.add(this.vel);
    this.acc.div(0);
  }
}

You could make this more interesting by attaching mass to the body, or applying angular velocity.

Check out my canvas lab for more examples.