roslaunch turtlebot3_gazebo turtlebot3_autorace_2020.launch x_pos:="-1.1821" y_pos:="1.756" z_pos:="0" yaw:="3.14" & sleep 3 roslaunch turtlebot3_autorace_camera intrinsic_camera_calibration.launch & sleep 3 roslaunch turtlebot3_autorace_core turtlebot3_autorace_mission.launch & sleep 3 roslaunch turtlebot3_autorace_core turtlebot3_autorace_level_crossing.launch & rqt_image_view & read -p "Press [Enter] key to start." echo " 3" sleep 1 echo " 2" sleep 1 echo " 1" sleep 1 echo " 0 Start " rostopic pub -1 /core/decided_mode std_msgs/UInt8 "data: 2" &