I want to animate a rope/string. What's the best approach for this? about manim-physics HOT 4 OPEN

It is not an easy task to create a rope in all physics engines. To the best of my knowledge, the only way to simulate rope is using joint segments/springs. The following links may be helpful:
Stackoverflow: How to create rope
pymunk joint document

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As an update on this, I actually do have something functioning, although it does have quite a bit of overhead and it has some strange rippling effects. Further, it can move through objects when moving too fast. I will send a video later showing this.

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Brief example of a point trying to run away while leashed to two nails.

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It's basically a chain:

But then every frame I get a spline interpolator to smoothen the curve:

At the moment, I'm facing a few issues with this implementation:

• Getting the beginning and end of the curve to have equal slopes (can't find a good algorithm to smoothen/interpolate a 2D closed curve)
• Slow render times when I place the beginning and of the chain too close together although t
• Too jittery; not too sure what causes this but decreasing the damping parameter helps significantly.
• Like any object, moving too quickly causes this to move through obstacles
• I also don't know how to make the rope stretchy. I tried making the tension adjustable but it causes some really strange behaviour...

On the other hand this method does produce a decent rope without too many chains at a reasonable level of performance. I can do a PR if your interested in having this in your library.

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