Pawns

VesselPawn

ADRW_VesselPawn: abstract; subclass to a Blueprint to instantiate.

Purpose: Pawn wrapper for direct player possession of vessels. Combines all vessel components with Enhanced Input and camera.

How to possess

Use VesselPossessionComponent on your player pawn, call RequestPossessVessel(VesselPawn). Or use APlayerController::Possess() directly on the server.

Custom controllers (AI)

VesselPawn implements IDRW_VesselController, the interface DRW uses to read input from whatever is driving a vessel. To write your own controller (for AI ships, scripted boats, etc.) you can either:

• Drive the existing pawn by feeding SetInput() on the vessel (simplest, works from Blueprint).
• Implement IDRW_VesselController yourself for a non-pawn driver. The interface’s input methods are pure C++ virtuals, so a custom controller class must be written in C++: Blueprint-only classes cannot satisfy the interface in this version.

Default input (AutoKeyboardMouse)

Key	Action
W / S	Throttle
A / D	Steering
Mouse	Camera look
Scroll	Camera zoom

Customize by setting InputSource on VesselInputComponent or providing a VesselInputConfig.

Owned components

• HullMesh (StaticMeshComponent): root, physics-simulating
• PhysicsBody (PhysicsBodyComponent)
• Buoyancy (BuoyancyComponent)
• Movement (VesselMovementComponent)
• Replication (SmoothReplicationComponent)
• VesselInput (VesselInputComponent)
• VesselCamera (VesselCameraComponent)

Properties

Property	Type	Default	Description
VesselData	VesselDataAsset	:	Master config (required before BeginPlay).
HullMeshAsset	StaticMesh	:	Hull mesh.
bEnableMultiplayer	bool	true	Network support.
NetUpdateRate	float	30.0	Hz. Range: 1–60.
OriginalPawn	Pawn	:	Pawn to return to on exit (auto-set).

Blueprint API

Function	Returns	Description
Server_RequestExitVessel()	void	Exit vessel, return to OriginalPawn (Server RPC).
GetSpeed() / GetSpeedKnots()	float	Speed.
GetHeading()	float	0–360 heading.
IsInWater() / IsPlaning()	bool	State.
GetHullMesh / PhysicsBody / Buoyancy / Movement / VesselInput / VesselCamera / Replication()	Component	Component access.

Multiplayer: Server-authoritative. Input replicated. OriginalPawn replicated with RepNotify.

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DronePawn

ADRW_DronePawn

Purpose: Flying camera pawn for testing vessel possession, seat occupation, and ocean wave switching. Use this as your default pawn during development.

How to possess

Set as the default pawn in your GameMode (use BP_DRWGameMode).

Input

Key	Action
WASD	Fly
Mouse	Look
E / Q	Up / Down
Shift	Sprint
F	Interact (possess vessel or enter seat)
1 / 2 / 3	Switch ocean wave presets

Owned components

• CollisionSphere, SpringArm, Camera, FloatingPawnMovement
• SeatOccupant (SeatOccupantComponent)
• VesselPossession (VesselPossessionComponent)
• WaterlineComponent

States

Flying, ControllingVessel

Properties

Property	Type	Default	Description
FlySpeed	float	1000.0	Normal speed (cm/s).
SprintSpeed	float	3000.0	Sprint speed (cm/s).
LookSensitivity	float	0.5	Look sensitivity.
SeatInteractionRange	float	500.0	Seat discovery range (cm).
SmallWavesData	WaveDataAsset	:	Key 1 wave preset.
MediumWavesData	WaveDataAsset	:	Key 2 wave preset.
HighWavesData	WaveDataAsset	:	Key 3 wave preset.
WaveBlendDuration	float	10.0	Blend time (seconds).

Blueprint API

Function	Returns	Description
TryEnterNearestSeat()	bool	Find and enter nearest seat.
ExitCurrentSeat()	bool	Leave current seat.
TryPossessNearestVessel()	bool	Possess nearest VesselPawn.
ToggleVesselControl()	void	F key: tries possession first, then seat.
GetDroneState()	DroneState	Flying or ControllingVessel.
GetControlledVessel()	Vessel	Current vessel.