Latest somehow working version of my 2D physics engine editor.
Numpad is programmable to change line lengths, so linear actuators like muscles/pistons are possible.
Also, when you press Y while having a point selected, you can set the Y-limit, which acts to some degree like a curtain rod.
Now there's invisible (press i when a line is selected) sticks and wires (w), so you can make a ragdoll,
hang it by a couple of invisible wires to a curtain rod, and have it stay upright.
There's a couple of model files, some of them are glitchy because they were made with a previous version of the program.
EDIT: Hey, it benefits greatly from NVDI. has FPU support, but it has little or no effect.
F for freehand on/off in the simulation, so you can pick and grab a point with the mouse.