current(vertices) = { (count, 4), (0, {(x, 50), (y, 50)}), (1, {(x, 100), (y, 50)}), (2, {(x, 100), (y, 100)}), (3, {(x, 50), (y, 100)}), }; current(vx) = 100.0; current(vy) = 120.0; current(vrot) = 1.0;