Mirror Multiplayer Vehicle

Synchronizes vehicle state over Mirror.

Overview

MirrorMultiplayerVehicle handles state synchronization for vehicle inputs, lights, and engine RPM. It does NOT synchronize physics - add NetworkTransformReliable or NetworkRigidbodyReliable for position/rotation/velocity sync.

Synchronized State

Updates at 20Hz (configurable via SYNC_INTERVAL constant):

Inputs:

  • Steering (-1 to 1)
  • Throttle, clutch, handbrake (0 to 1)
  • Shift commands (shiftInto, shiftUp, shiftDown)

Flags:

  • Engine start/stop
  • Horn, boost, flip-over
  • Trailer attach/detach
  • Cruise control

Visual/Audio:

  • Light states (bit-packed integer)
  • Engine angular velocity (for RPM display/sound)

Network Flow

Client-owned vehicle:

  1. Local input drives VehicleController
  2. GetMultiplayerState() captures current state
  3. Sends via CmdMultiplayerState() to server
  4. Server validates and broadcasts via RpcMultiplayerState()

Server-hosted vehicle:

  1. Server input drives VehicleController
  2. Broadcasts state directly via RpcMultiplayerState()

Remote clients:

  1. Receive state via RPC
  2. SetMultiplayerState() applies to VehicleController
  3. autoSetInput disabled to prevent local input override

Setup

See the Mirror multiplayer setup guide for integration instructions.