Vehicle Flags

Overview

This article contains some info on what the various vehicle flags do.

⚠️ Note that some vehicles, particularly aircraft, use flags in unexpected ways.

`Vehicle.Flags`

Flag	Value	Purpose
`Created`	`0x1`
`Spawned`	`0x2`
`Deleted`	`0x4`
`Inverted`	`0x8`	Inverts (rotate 180°) the vehicle; used for train trailer rotation.
`TransferToTarget`	`0x10`
`TransferToSource`	`0x20`
`Emergency1`	`0x40`	Emergency vehicle lights flashing. `BlimpAI`: Show alternate adverts.
`Emergency2`	`0x80`	Emergency vehicle on-scene (eg. collecting corpse, tackling fire, pumping water, etc). `BlimpAI`: Show alternate adverts.
`WaitingPath`	`0x100`
`Stopped`	`0x200`	Vehicle is stopped / not moving.
`Leaving`	`0x400`	Active for trains that are about to leave station, but haven't started moving yet.
`Arriving`	`0x800`	Active for trains arriving at a station but not yet stopped. Active for taxis which have a passenger on board.
`Reversed`	`0x1000`	Active for train/monorail engine which is travelling backwards.
`TakingOff`	`0x1000`	`TrolleybusAI`: Right Pole `AircraftAI`, `HelicopterAI`: Taking off
`Flying`	`0x4000`	`AircraftAI`, `BalloonAI`, `BlimpAI`, `HelicopterAI`: Flying.
`Landing`	`0x8000`	`TrolleybusAI`: Left pole `AircraftAI`, `HelicopterAI`: Landing
`WaitingSpace`	`0x10000`
`WaitingCargo`	`0x20000`	`CargoShipAI`, `CargoTrainAI`, `CargoTruckAI`, `TaxiAI`: Waiting for cargo.
`GoingBack`	`0x40000`	Vehicle returning to place of origin.
`WaitingTarget`	`0x80000`
`Importing`	`0x100000`	Set for vehicles which are importing goods, even when they are returning to facility.
`Exporting`	`0x200000`	Set for vehicles which are exporting goods, even when they are returning to facility.
`Parking`	`0x400000`	Road vehicle is moving to a parking spot.
`CustomName`	`0x800000`	Active if the vehicle has been given a custom name (eg. by Customize It: Extended mod, or by editing name in vehicle info panel title bar).
`OnGravel`	`0x1000000`	Enables road vehicle dust effect. Set by segment `NetInfo.m_setvehicleflags` (see later).
`WaitingLoading`	`0x2000000`	Set for cargo trains at station while being loaded with cargo.
`Congestion`	`0x4000000`	Force despawn to reduce traffic jams.
`DummyTraffic`	`0x8000000`	The vehicle is dummy traffic.
`Underground`	`0x10000000`	Vehicle is travelling underground. Set by segment `NetInfo.m_setvehicleflags` (see later).
`Transition`	`0x20000000`	Slope segments set this flag. Set by segment `NetInfo.m_setvehicleflags` (see later).
`InsideBuilding`	`0x40000000`
`LeftHandDrive`	`int.MinValue`

`Vehicle.Flags2`

Flag	Value	Purpose
`Floating`	`0x1`	Vehicle is swept away by water (eg. tsunami). Will eventually despawn unless it lands on dry land.
`Blown`	`0x2`	Vehicle is sucked in to a tornado/chirpnado. Will eventually despawn unless dropped from tornado.
`Yielding`	`0x4`
`EndStop`	`0x8`

`NetInfo.m_setvehicleflags`

When vehicles are travelling along a network prefab, they adopt any flags set in NetInfo.m_setvehicleflags.

It's mainly used to set the following Vehicle.Flags:

OnGravel - gravel roads cause vehicles to show dust effect
Underground - ?
Transition - ?

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