Gazebo Sim

API Reference

9.0.0
FollowActor Class Reference

Make an actor follow a target entity in the world. More...

#include <gz/sim/systems/FollowActor.hh>

Public Member Functions

 FollowActor ()
 Constructor.
 
 ~FollowActor () override
 Destructor.
 
void Configure (const Entity &_entity, const std::shared_ptr< const sdf::Element > &_sdf, EntityComponentManager &_ecm, EventManager &_eventMgr) final
 Configure the system.
 
void PreUpdate (const UpdateInfo &_info, EntityComponentManager &_ecm) final
 Documentation inherited.
 
- Public Member Functions inherited from System
 System ()=default
 Constructor.
 
virtual ~System ()=default
 Destructor.
 

Additional Inherited Members

- Public Types inherited from System
using PriorityType = int32_t
 Signed integer type used for specifying priority of the execution order of PreUpdate and Update phases.
 
- Static Public Attributes inherited from System
static constexpr PriorityType kDefaultPriority = {0}
 Default priority value for execution order of the PreUpdate and Update phases.
 
static constexpr std::string_view kPriorityElementName
 Name of the XML element from which the priority value will be parsed.
 

Detailed Description

Make an actor follow a target entity in the world.

System Parameters

  • <target>: Name of entity to follow.
  • <min_distance>: Distance in meters to keep from target's origin.
  • <max_distance>: Distance in meters from target's origin when to stop following. When the actor is back within range it starts following again.
  • <velocity>: Actor's velocity in m/s
  • <animation>: Actor's animation to play. If empty, the first animation in the model will be used.
  • <animation_x_vel>: Velocity of the animation on the X axis. Used to coordinate translational motion with the actor's animation.

Constructor & Destructor Documentation

◆ FollowActor()

FollowActor ( )
explicit

Constructor.

◆ ~FollowActor()

~FollowActor ( )
override

Destructor.

Member Function Documentation

◆ Configure()

void Configure ( const Entity _entity,
const std::shared_ptr< const sdf::Element > &  _sdf,
EntityComponentManager _ecm,
EventManager _eventMgr 
)
finalvirtual

Configure the system.

Parameters
[in]_entityThe entity this plugin is attached to.
[in]_sdfThe SDF Element associated with this system plugin.
[in]_ecmThe EntityComponentManager of the given simulation instance.
[in]_eventMgrThe EventManager of the given simulation instance.

Implements ISystemConfigure.

◆ PreUpdate()

void PreUpdate ( const UpdateInfo _info,
EntityComponentManager _ecm 
)
finalvirtual

Documentation inherited.

Implements ISystemPreUpdate.


The documentation for this class was generated from the following file: