- auto-generated track
- collisions with the 4 walls
- basic static and dynamic friction
- air drag applied to the center of mass
- "arrow-key steering aids": velocity-based limitations to steering angle and its change rate
The physics model is "as simple as possible": Frictional forces are applied to two points: the center of the front and rear axle instead of the four wheels separately. The car is therefore actually modeled more like a "motorcycle that does not bank". This is the same as assuming a lot of symmetry between the forces to the left and right wheel on each axle, i.e.,
- no tire slip due to deformations
- no suspension
- no roll
- equal coefficients of friction
TODO:
- brakes
- non-constant torque from engine
- noise
- PID control with a few tricks
- Route planning with an ad-hoc "rubber band model" (uses a web worker)
TODO
- Physics-based controller (non-PID)