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ACharacter::ServerMove

function Engine Deprecated Since 4.0
Deprecated: Use ServerMovePacked() instead.
#include "GameFramework/Character.h"
Access: public Specifiers: UFUNCTIONdeprecated

Description

Deprecated server RPC that sends a single client movement update to the server. Replaced by ServerMovePacked() since UE 4.26 for better bandwidth efficiency via variable-size payloads.

Caveats & Gotchas

  • Deprecated since 4.26 — requires SUPPORT_DEPRECATED_CHARACTER_MOVEMENT_RPCS=1 and p.NetUsePackedMovementRPCs=0 to remain functional. New projects should use ServerMovePacked instead.
  • This is an unreliable RPC; moves can be dropped. The client maintains a SavedMoves list to re-send if the server does not acknowledge receipt, so missing single packets is expected and handled — but high packet loss will still degrade movement quality.

Signature

void ServerMove(float TimeStamp, FVector_NetQuantize10 InAccel, FVector_NetQuantize100 ClientLoc, uint8 CompressedMoveFlags, uint8 ClientRoll, uint32 View, UPrimitiveComponent* ClientMovementBase, FName ClientBaseBoneName, uint8 ClientMovementMode)

Parameters

Name Type Description Default
TimeStamp float Client-side timestamp of the move.
InAccel FVector_NetQuantize10 Compressed client acceleration vector.
ClientLoc FVector_NetQuantize100 Compressed client location at move time.
CompressedMoveFlags uint8 Bit-packed movement flags (sprinting, crouching, etc.).
ClientRoll uint8 Compressed client roll.
View uint32 Compressed client view pitch and yaw.
ClientMovementBase UPrimitiveComponent* Component the client is standing on, if any.
ClientBaseBoneName FName Bone name on the base component.
ClientMovementMode uint8 Compressed client movement mode enum.

Return Type

void

Example

Why you should use ServerMovePacked instead C++
// WRONG — do not call ServerMove directly; it is managed by CharacterMovementComponent
// Use the packed variant pathway instead:
// In your Game.Build.cs or DefaultEngine.ini, ensure p.NetUsePackedMovementRPCs=1 (default)
// CharacterMovement will call ServerMovePacked automatically.

Version History

Introduced in: 4.0

Version Status Notes
5.6 deprecated Superseded by ServerMovePacked.
4.26 deprecated Deprecated in favour of packed RPC.

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