(NB: Also the variables PostStep And scripts are not from scratch!!!!. its from algodoo. also algodoo's variable can store almost 5,000 different points under 1 miliseconds all assets i used: list (OF COURSE LIST) variables to store but the list in scratch has maximum capacity: 200,000 data so i make it with a delay of 0 seconds to make it not quickly to 200,000 want to get algodoo? get here: www.algodo.com/download