Constraint on soft bodies are special and return 0 as constraint id. So we have to check that the id is not 0 in function setParam, getParam, getAppliedImpulse and removeConstraint.
Constraint on soft bodies are special and return 0 as constraint id. So we have to check that the id is not 0 in function setParam, getParam, getAppliedImpulse and removeConstraint.