Implementation:CARLA simulator Carla WalkerControl

Knowledge Sources	CARLA
Domains	Pedestrian Control, RPC Serialization
Last Updated	2026-02-15 05:00 GMT

Overview

WalkerControl is an RPC-serializable class that provides movement control for pedestrian walker actors, specifying direction, speed, and jump state.

Description

Defined in the carla::rpc namespace (~68 lines), this class contains three parameters for controlling walker movement:

• direction (Vector3D, default {1,0,0}): the movement direction vector
• speed (float, default 0.0f): movement speed in m/s
• jump (bool, default false): whether the walker should jump

When compiled within UE4, the class converts to/from FWalkerControl with appropriate unit conversion (speed is multiplied by 1e2 for cm/s in UE4, divided by 1e2 for m/s in RPC). The class supports equality comparison and MsgPack serialization.

Usage

Use this type to control pedestrian walker movement via the CARLA client API, setting their walking direction, speed, and triggering jumps.

Code Reference

Source Location

• Repository: CARLA
• File: LibCarla/source/carla/rpc/WalkerControl.h

Signature

namespace carla {
namespace rpc {

  class WalkerControl {
  public:
    WalkerControl() = default;
    WalkerControl(geom::Vector3D direction, float speed, bool jump);

    geom::Vector3D direction = {1.0f, 0.0f, 0.0f};
    float speed = 0.0f;
    bool jump = false;

    bool operator!=(const WalkerControl &rhs) const;
    bool operator==(const WalkerControl &rhs) const;

    MSGPACK_DEFINE_ARRAY(direction, speed, jump);
  };

} // namespace rpc
} // namespace carla

Import

#include "carla/rpc/WalkerControl.h"

I/O Contract

Field	Type	Default	Description
direction	geom::Vector3D	{1.0, 0.0, 0.0}	Movement direction vector (normalized)
speed	float	0.0f	Movement speed in m/s
jump	bool	false	Whether walker should jump

Usage Examples

#include "carla/rpc/WalkerControl.h"

carla::rpc::WalkerControl control;
control.direction = {0.0f, 1.0f, 0.0f}; // walk along Y axis
control.speed = 1.4f;                     // normal walking speed
control.jump = false;

walker->ApplyControl(control);

Related Pages

• CARLA_simulator_Carla_WalkerBoneControlIn
• Environment:CARLA_simulator_Carla_Simulation_Runtime