#vehicles

The higher-order asset layer for kits of parts (vehicles, procedural buildings): the generator emits a manifest next to the meshes, code consumes ONLY the manifest, pivots sit at joints, collision comes from metadata, and assembly is transactional.

The method for vehicle engine audio that doesn't screech: two-layer RPM crossfade with narrow pitch bands, code-side looping, slip-driven skid feedback, and the persistent ConVar trap that ate two listen tests.

The proven architecture for driving games in s&box: raycast wheels on a single chassis Rigidbody, substepped slip-ratio/slip-angle tire physics with peaked curves, a torque-curve drivetrain, layered assists, and arcade dials on top of a sim core.

A timeout accumulator gated on a control-signal sample (throttle > threshold) resets to zero on frames where the signal legitimately reads zero, so it never fills. A gear change drives the throttle magnitude through zero on a fixed cadence, and an unstick routine that alternates gears makes that happen forever, so a stuck vehicle is never declared wrecked. Drive give-up timers from ground-truth state, such as position progress since the last known-good, never from a control signal that pulses through the reset value by design.