detach method
void
detach()
Detach the joint from the bodies.
Implementation
void detach(){//bool isX ) {
// if( isX ){
// body1!.jointLink.splice(body1!.jointLink.indexOf(b1Link ), 1 );
// body2!.jointLink.splice(body2!.jointLink.indexOf(b2Link ), 1 );
// }
// else {
JointLink? prev = b1Link.prev;
JointLink? next = b1Link.next;
if(prev != null){ prev.next = next;}
if(next != null){ next.prev = prev;}
if(body1!.jointLink == b1Link){body1!.jointLink = next;}
b1Link.prev = null;
b1Link.next = null;
b1Link.body = null;
body1!.numJoints--;
prev = b2Link.prev;
next = b2Link.next;
if(prev != null){ prev.next = next;}
if(next != null){ next.prev = prev;}
if(body2!.jointLink==b2Link) body2!.jointLink = next;
b2Link.prev = null;
b2Link.next = null;
b2Link.body = null;
body2!.numJoints--;
//}
b1Link.body = null;
b2Link.body = null;
}