gazebo_ros_create.h

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#ifndef GAZEBO_ROS_CREATE_H
#define GAZEBO_ROS_CREATE_H

#include "gazebo/physics/physics.hh"
#include "gazebo/physics/PhysicsTypes.hh"
#include "gazebo/sensors/SensorTypes.hh"
#include "gazebo/transport/TransportTypes.hh"
#include "gazebo/common/Time.hh"
#include "gazebo/common/Plugin.hh"
#include "gazebo/common/Events.hh"

#include <nav_msgs/Odometry.h>
#include <geometry_msgs/TwistWithCovariance.h>
#include <geometry_msgs/PoseWithCovariance.h>

#include <tf/transform_broadcaster.h>
#include <ros/ros.h>

namespace gazebo
{
  class GazeboRosCreate : public ModelPlugin
  {
    public: 
      GazeboRosCreate();
      virtual ~GazeboRosCreate();
          
      virtual void Load(physics::ModelPtr _parent, sdf::ElementPtr _sdf );

      virtual void UpdateChild();
  
    private:

      void UpdateSensors();
      void OnContact(const std::string &name, const physics::Contact &contact);
      void OnCmdVel( const geometry_msgs::TwistConstPtr &msg);


      std::string node_namespace_;
      std::string left_wheel_joint_name_;
      std::string right_wheel_joint_name_;
      std::string front_castor_joint_name_;
      std::string rear_castor_joint_name_;
      std::string base_geom_name_;

      float wheel_sep_;

      float wheel_diam_;

      float torque_;


      ros::NodeHandle *rosnode_;
      //ros::Service operating_mode_srv_;
      //ros::Service digital_output_srv_;
  
      ros::Publisher sensor_state_pub_;
      ros::Publisher odom_pub_;
      ros::Publisher joint_state_pub_;
  
      ros::Subscriber cmd_vel_sub_;

      physics::WorldPtr my_world_;
      physics::ModelPtr my_parent_;

      float *wheel_speed_;

      // Simulation time of the last update
      common::Time prev_update_time_;
      common::Time last_cmd_vel_time_;

      float odom_pose_[3];
      float odom_vel_[3];

      bool set_joints_[4];
      physics::JointPtr joints_[4];
      physics::CollisionPtr base_geom_;

      sensors::RaySensorPtr left_cliff_sensor_;
      sensors::RaySensorPtr leftfront_cliff_sensor_;
      sensors::RaySensorPtr rightfront_cliff_sensor_;
      sensors::RaySensorPtr right_cliff_sensor_;
      sensors::RaySensorPtr wall_sensor_;

      tf::TransformBroadcaster transform_broadcaster_;
      sensor_msgs::JointState js_;

      turtlebot_node::TurtlebotSensorState sensor_state_;

      void spin();
      boost::thread *spinner_thread_;

      event::ConnectionPtr contact_event_;

      // Pointer to the update event connection
      event::ConnectionPtr updateConnection;
  };
}
#endif