[code]g(x) = Si(x - floor(x) ≟ 0, 0, x - floor(x))[br]i=floor(t)[br]q6=Si(Reste(i, 2) ≟ 0, Rotation(Polygone((3i / 2, 0), (3i / 2 + 1, 0), (3i / 2 + 1, 2), (3i / 2, 2)), -g(t) * 90°, (3i / 2 + 1, 0)), Rotation(Polygone((3(i + 1) / 2 - 2, 0), (3(i + 1) / 2, 0), (3(i + 1) / 2, 1), (3(i + 1) / 2 - 2, 1)), -g(t) * 90°, (3(i + 1) / 2, 0)))[br][/code]