Resize rope when apply force to attached mass

[josemendez]

How can i get the speed of first 1-2 rope particle point and also tension force? 

Hi!

You can get any per-particle value (velocity, position, size, etc) using the particles API. To get the index of the first particle on the rope, you should use the rope's elements array.

How can I compare the current rope tension with the tension at rest?

By definition, the tension at rest or any object is zero. Maybe you're interested in strain instead, which is the % of deformation caused by tension? You can calculate it like this:

Code:

float strain = rope.CalculateLength() / rope.restLength;

It will be 1 when the rope is at rest, >1 if stretched, <1 if compressed.

kind regards