protected bool Init(CCPhysicsBody a, CCPhysicsBody b, CCPoint anchr1, CCPoint anchr2, float stiffness, float damping)
{
if (!base.Init(a, b))
{
return(false);
}
var anch1 = PhysicsHelper.CCPointToCpVect(anchr1);
var anch2 = PhysicsHelper.CCPointToCpVect(anchr2);
cpConstraint joint = new cpDampedSpring(GetBodyInfo(a).Body,
GetBodyInfo(b).Body,
anch1,
anch2,
cpVect.cpvdist(
_bodyB.Local2World(anch1), _bodyA.Local2World(anch2)),
stiffness,
damping);
if (joint == null)
{
return(false);
}
_info.Add(joint);
return(true);
}
private void Draw(cpDampedSpring constraint)
{
var a = constraint.a.LocalToWorld(constraint.GetAnchorA());
var b = constraint.b.LocalToWorld(constraint.GetAnchorB());
DrawSpring(a, b, CONSTRAINT_COLOR);
}
