[size=150]Slider great trick from Bernat[br][br]https://youtu.be/Ta52MlTNRXg[/size]

[size=150]top = Slider(0, 10, 1, 1, 200, false, true, false, false)[br]SetValue(top, 6)[br]k = Slider(0, top, 0.1, 1, 200, false, true, false, false)[br][br][br]sl = Sequence(Max(0, Min(1, k - s)), s, 0, top-1)[br][br]sc = Sequence(0 < sl(s) < 1, s, 1, top)[br][br]sc' = Sequence(0 < sl(s) <= 1, s, 1, top)[br][br]A = (-3, 0)[br]B = (0, 0)[br]C = (4, 0)[br][br]c = Circle(A, 1)[br]d = Circle(B, 1.5)[br]e = Circle(C, 2)[/size]