Files
allwpilib/simulation/frc_gazebo_plugins/clock/src/clock.h
2017-01-01 00:05:57 -08:00

59 lines
1.8 KiB
C++

/*----------------------------------------------------------------------------*/
/* Copyright (c) FIRST 2016-2017. All Rights Reserved. */
/* Open Source Software - may be modified and shared by FRC teams. The code */
/* must be accompanied by the FIRST BSD license file in the root directory of */
/* the project. */
/*----------------------------------------------------------------------------*/
#pragma once
#include <string>
#include <gazebo/gazebo.hh>
#include <gazebo/physics/physics.hh>
#include <gazebo/transport/transport.hh>
#include "simulation/gz_msgs/msgs.h"
/**
* \brief Plugin for publishing the simulation time.
*
* This plugin publishes the simualtaion time in seconds every physics
* update.
*
* To add a clock to your robot, add the following XML to your robot
* model:
*
* <plugin name="my_clock" filename="libclock.so">
* <topic>~/my/topic</topic>
* </plugin>
*
* - `topic`: Optional. Message will be published as a gazebo.msgs.Float64.
*
* \todo Make WorldPlugin?
*/
class Clock : public gazebo::ModelPlugin {
public:
/// \brief Load the clock and configures it according to the sdf.
void Load(gazebo::physics::ModelPtr model, sdf::ElementPtr sdf);
/// \brief Sends out time each timestep.
void Update(const gazebo::common::UpdateInfo& info);
private:
/// \brief Publish the time on this topic.
std::string topic;
/// \brief The model to which this is attached.
gazebo::physics::ModelPtr model;
/// \brief Pointer to the world update function.
gazebo::event::ConnectionPtr updateConn;
/// \brief The node on which we're advertising.
gazebo::transport::NodePtr node;
/// \brief Publisher handle.
gazebo::transport::PublisherPtr pub;
};