driver ( name "stage" plugin "stageplugin" provides [ "simulation:0" ] worldfile "ant.world" ) driver ( name "stage" provides [ "6666:position2d:0" "6666:ranger:0" ] model "ant_robot_1" ) driver ( name "stage" provides [ "6667:position2d:0" "6667:ranger:0" ] model "ant_robot_2" ) driver ( name "stage" provides [ "6668:position2d:0" "6668:ranger:0" ] model "ant_robot_3" ) driver ( name "stage" provides [ "6669:position2d:0" "6669:ranger:0"] model "ant_robot_4" )