wave5-fixed-step-simulation-system-group

What problem does it solve?

It prevents physics-affecting systems from running in the wrong place relative to the FixedStepSimulationSystemGroup and the underlying PhysicsSystemGroup/sub-groups, which can lead to incorrect forces, missed events, or mis-timed collision/trigger handling.

Core Features & Use Cases

• Correct scheduling: Ensures force/impulse logic runs before the physics build/solve while event-reading logic runs after the physics simulation.
• Phase-appropriate placement: Guides you to use UpdateBefore/UpdateAfter with PhysicsSystemGroup vs PhysicsSimulationGroup as appropriate for the data you read.
• Fixed-timestep safety: Helps avoid render-rate assumptions and reduces runtime risks from multiple fixed ticks per frame.

Quick Start

Use FixedStepSimulationSystemGroup for physics-rate systems and place force systems with UpdateBefore(PhysicsSystemGroup) and event processing systems with UpdateAfter(PhysicsSimulationGroup).