define ant_bot position ( block ( points 6 point[0] [ 0.75 0 ] point[1] [ 1 0.25 ] point[2] [ 1 0.75 ] point[3] [ 0.75 1 ] point[4] [ 0 1 ] point[5] [ 0 0 ] z [ 0 0.45 ] ) drive "diff" localization "gps" )