Quick version in Desmos: https://www.desmos.com/calculator/7dpcup8iwk https://www.desmos.com/calculator/7dpcup8iwk Here you move the points by dragging instea

Quick version in Desmos: https://www.desmos.com/calculator/7dpcup8iwk https://www.desmos.com/calculator/7dpcup8iwk Here you move the points by dragging instead of creating them by drawing, which I find more fun in some ways, and less fun in others. Edit: constraining the radius makes the system behave like a hoop attached to springs https://www.desmos.com/calculator/a2pfwqrtmb https://www.desmos.com/calculator/a2pfwqrtmb