Use when writing or debugging UCharacterMovementComponent code: custom movement modes, floor detection, jumping, crouching, root motion, moving platforms, or client-side movement prediction. Also use when the user mentions 'CharacterMovementComponent', 'CMC', 'PhysCustom', 'PhysWalking', 'MOVE_Custom', 'FSavedMove_Character', 'GetCompressedFlags', 'FCharacterNetworkMoveData', 'MovementBase', 'LaunchCharacter', 'WalkableFloorAngle', 'SetGravityDirection', 'NavWalking', or 'FRootMotionSource'. For the Mover plugin, see ue-mover; for replication mechanics, see ue-networking-replication.