#N canvas 752 10 450 300 10;
#N canvas 389 332 664 321 mass 0;
#X obj 62 182 drawnumber mid 0 -18 0 m;
#X obj 61 136 filledpolygon mob mob 1 -5 0 -4 4 0 5 4 4 5 0 4 -4 0
-5 -4 -4;
#X obj 64 72 struct mass float x float y float mid float mob float
M float sid;
#X restore 132 125 pd mass;
#N canvas 73 302 487 201 liaison 0;
#X obj 23 73 drawpolygon sid 2 x1 y1 x2 y2;
#X obj 19 25 struct liaison float x1 float y1 float x2 float y2 float
mid1 float mid2 float lid float K float D float P float Lmin float
Lmax float sid;
#X restore 132 147 pd liaison;