public Joint CreateJoint(JointDef def)
{
Box2DXDebug.Assert(_lock == false);
Joint j = Joint.Create(def);
// Connect to the world list.
j._prev = null;
j._next = _jointList;
if (_jointList != null)
{
_jointList._prev = j;
}
_jointList = j;
++_jointCount;
// Connect to the bodies' doubly linked lists.
j._node1.Joint = j;
j._node1.Other = j._body2;
j._node1.Prev = null;
j._node1.Next = j._body1._jointList;
if (j._body1._jointList != null)
j._body1._jointList.Prev = j._node1;
j._body1._jointList = j._node1;
j._node2.Joint = j;
j._node2.Other = j._body1;
j._node2.Prev = null;
j._node2.Next = j._body2._jointList;
if (j._body2._jointList != null)
j._body2._jointList.Prev = j._node2;
j._body2._jointList = j._node2;
// If the joint prevents collisions, then reset collision filtering.
if (def.CollideConnected == false)
{
// Reset the proxies on the body with the minimum number of shapes.
Body b = def.Body1._shapeCount < def.Body2._shapeCount ? def.Body1 : def.Body2;
for (Shape s = b._shapeList; s != null; s = s._next)
{
s.RefilterProxy(_broadPhase, b.GetXForm());
}
}
return j;
}
/** Handles anchoring the first and last pieces of the bridge
* to the world versus to other bridge pieces
*/
private void CreateEndJoint(World world, bool leftEnd)
{
RevoluteJointDef joint = new RevoluteJointDef();
Vector2 anchor = Position - new Vector2(width/2, 0);
if (!leftEnd)
anchor = Position + new Vector2(width / 2, 0);
joint.Initialize(Body, world.GetGroundBody(), Utils.Convert(anchor));
world.CreateJoint(joint);
}