Algodoo

Here is a dump truck that I built, its not the greatest looking but it uses my hydraulic piston that I made. Drive up to the black rock spawner and press shift to spawn rocks. Then drive up the hill, drive "around" the hole, and dump the rocks in. Driving controls are left and right arrows, and the wheels auto brake when you left off the arrows. Shift key to spawn balls, and up/down arrow keys to dump stuff. Press the enter key to open up the dump bed or whatever it's called. This is on a toggle, and remember to re lock it closed before putting more rocks in. To be honest the scene isn't all that fun, but I'll hopefully be building a better scene for the dump truck.