Connect two objects

[josemendez]

Hello.
I'm doing the game using obi physics, but after studying the documentation, I could not connect the two objects with a rope with the result I needed.

I need to connect two points so that when the platform bends turned, the cube falls forward. I tried to adjust the distance, mass and stuff, but nothing happened.

Points are selected through the script

Code:

     localOPB.AddConstraint(0, firstTarget.GetComponent<ObiCollider>(), firstTarget.InverseTransformPoint(firstPoint), 0);

Code:

    localOPB.AddConstraint(105, secondTarget.GetComponent<ObiCollider>(), secondTarget.InverseTransformPoint(secondPoint), 0);

Hi!

How are you updating the constraints? Are you adding them back to the solver after adding new constraints to the pin constraints batch? You must follow this pattern:

Code:

ObiPinConstraints constraints = rope.PinConstraints;
ObiPinConstraintBatch batch = (ObiPinConstraintBatch)constraints.GetBatches()[0];

// remove the constraints from the solver, because we cannot modify the constraints list while the solver is using it.
constraints.RemoveFromSolver(null);

// your code to add new constraints to the batch

// add all constraints back:
constraints.AddToSolver(null);