Trick behind Real Time spring?


Hi there
Can anyone tell me what is the main idea behind the real_time spring there are some scripts in scriptspot but they are ambiguous to me can anybody tell me the base idea ? what should i consider and what should do in next step?


what do you mean by “real time spring” ? a mesh that looks like a spring that stretches and contracts as you move one end or a “physics” object that “bounces” around the world like zeberdy from the magic round about ? or both ?


This one

And this one


the first one looks a bit like the animation plugin for lightwave a long time ago called lazy points the “trick” was to fo;low the motion down the “chain” but with a progressive delay which would give it that “springy” effect.