Algodoo

so imagine you want to make a machine. and in a part of it, the michine opens a hatch. obove the hatch you need water. but when the machine opens the hatch, so the water gets all over the place! you make a line under the circle that makes the hatch open. it keeps most of the water owt, but the machine throws the water though the wall that you fixjointed over the circle (the big one). so in problems like this you need to follow the insructions in the scene...