pub fn step_layered(
peds: &mut [Pedestrian3D],
space: &LayeredSpace,
planar_step: PlanarStepFn,
params: &Params,
dt: f64,
)Expand description
Advance every pedestrian in peds by dt. Convenience wrapper that
allocates one LayeredScratch per call and immediately drops it;
prefer step_layered_scratch when the same simulation drives
successive ticks.