Commit Graph
4 Commits
Author SHA1 Message Date
jesse f70a0b06bb fix(client): stop the chassis watchdog dying on a nil seat during respawn
CI / quality (push) Failing after 47s
The stale-loop check indexed seatPart without a nil guard:

    not seatPart:IsDescendantOf(workspace)

On respawn CarManager destroys the old car, so humanoid.SeatPart is nil for a
frame while heartbeatConn is still live. That path then indexed a nil value,
the error propagated out of the task.spawn thread, and the watchdog - the only
self-healing path in the controller - DIED PERMANENTLY. The car was undrivable
from then on, and the bug looked intermittent because the edge-triggered
SeatPart signal still covered the simple nil -> seat transition.

Nil-check seatPart before indexing, and wrap the whole watchdog body in pcall
so no future error can ever silently kill the loop again (warn instead).

Verified: 5 consecutive respawns then drives to MaxSpeed 163 studs/s at road
level (up=1.00), TIME_ATTACK sessionKm advances 0.003 -> 0.169 km.
2026-07-31 16:15:55 -04:00
jesse c8809efa7b fix(client): re-arm chassis when the drive loop is bound to a stale car
CI / quality (push) Failing after 47s
Respawning left the car undrivable. CarManager.spawn() destroys the old car
and builds a new one, but the client's Heartbeat connection survived and kept
driving the DESTROYED car's motors. Because heartbeatConn stayed non-nil, the
cold-start watchdog concluded the chassis was already armed and never armed
the new car - torque stayed at the idle brake value and the car never moved.

Track the seat the live loop is bound to (drivingSeat) and treat the loop as
stale when that seat isn't the one we're sitting in, or its car has left the
workspace. On stale, stop and re-arm against the new car.

Verified: after 4 respawn cycles the car accelerates 49 -> 163 studs/s,
travels 273 studs, stays upright at road level.
2026-07-31 16:00:06 -04:00
jesse 3ae71f9dd3 fix(client): level-triggered watchdog arms chassis on cold start
CI / quality (push) Failing after 53s
The drive loop was armed purely edge-triggered from
humanoid:GetPropertyChangedSignal("SeatPart") plus a one-shot catch-up
applySeat() at init. On cold boot the server seats the player AFTER that
catch-up runs, so the edge is lost, startDriving() never connects, and all
four wheel motors stay at MotorMaxTorque = 0 - the car is completely
undrivable until the player manually gets out and back in.

Replace the one-shot with a 0.5s level-triggered watchdog: if seated in a
DriveSeat with no live heartbeat connection, arm it; if not seated with a
live connection, stop it. Immune to any ordering of bootstrap vs seating.

Verified on cold boot (no manual reseat): all 4 motors uniform, poisoned
torque values restored within 0.6s, car accelerates to MaxSpeed 163 studs/s,
holds it upright, and engine-brakes 163 -> 0.
2026-07-31 15:52:12 -04:00
jesse b3a1044df6 M1: constraint chassis (springs, servo steering, motor wheels)
CI / quality (push) Successful in 54s
- New shared Chassis.luau: geometry constants + per-car tuning from stats
- CarManager.buildCarModel rebuilt: prismatic+spring suspension per corner,
  servo-hinge steering on front knuckles, motor-hinge driven wheels,
  hidden dense ballast for anti-roll; VehicleSeat kept as input device only
- New client ChassisController: drives motors/servos from seat
  ThrottleFloat/SteerFloat per Heartbeat; speed-sensitive steering lock;
  engine braking on throttle release
- Driver gets network ownership of every unanchored part (constraint
  assemblies are separate; missing one causes stuttery physics)
- Docs: MESH_SWAP.md rewritten for shell-on-chassis workflow; ROADMAP updated
2026-07-22 00:20:59 -04:00