Hi, I would like to have a line that connects two entities, something like a rope. Think of a dog on a leash and the owner. Both the dog and the owner are separate entities and move autonomously and there is an extendable line between them. I would appreciate if anyone could give a few hints on how to get started with this. I suppose this should be a problem that has been solved before. Thank you.
P.S. the line can be straight, it does not have to be a curve due to gravity.