1update = 5; 2newplane = 5; 3width = 30; 4height = 21; 5 6exit: ( 6 0 x ) ( 18 0 x ) 7 ( 29 5 a ) ( 29 13 a ) 8 ( 14 20 e ) ( 6 20 w ) ; 9 10beacon: ( 6 5 ) ( 18 5 ) 11 ( 6 13 ) ; 12 13airport: ( 8 8 d ) ; 14 15line: [ ( 6 1 ) ( 6 4 ) ] 16 [ ( 18 1 ) ( 18 4 ) ] 17 [ ( 6 6 ) ( 6 12 ) ] 18 [ ( 6 14 ) ( 6 19 ) ] 19 [ ( 28 6 ) ( 15 19 ) ] 20 [ ( 7 13 ) ( 20 13 ) ] 21 [ ( 22 13 ) ( 28 13 ) ] 22 [ ( 7 5 ) ( 17 5 ) ] 23 [ ( 19 5 ) ( 28 5 ) ] ; 24