How to make the Start/End Prefab able to be Raycasted?

[josemendez]

Just one thing to add to what niZmo said: ObiRope already has a method to get the "real" length, including stretch:

Code:

float length = rope.CalculateLength();

No need to roll your own.

Also, niZmo's one would not work in case of a torn or extended/shortened rope, since particle ordering can change. The built-in method however, iterates over distance constraints instead of particles, so it will return the correct length in all cases.