bevy_prototype_schedule_states

This library is a experimental state abstraction for Bevy that is compatible with the built-in FixedTimestep. This library works by giving each state enter, update, and exit a Schedule and runs these schedules from inside an exclusive system.

Comparison to Bevy's Builtin State API

Pros

• Does not use run criteria, so is compatible with Bevy's built-in fixed timestep.
• Simpler, so there is less surprising behavior.
• Can nest states for more complex states.

Cons

• There is no stack so cannot run multiple states at once.
• Potentially less parallelism between systems since it's built on looping inside an exclusive system instead of run criteria.

Usage

See examples in repo.