public b2Joint CreateJoint(b2JointDef def)
{
global::System.IntPtr cPtr = Box2dPINVOKE.b2World_CreateJoint(swigCPtr, b2JointDef.getCPtr(def));
b2Joint ret = (cPtr == global::System.IntPtr.Zero) ? null : new b2Joint(cPtr, false);
return(ret);
}
protected b2Joint(b2JointDef def)
{
Debug.Assert(def.bodyA != def.bodyB);
m_type = def.type;
m_prev = null;
m_next = null;
m_bodyA = def.bodyA;
m_bodyB = def.bodyB;
m_index = 0;
m_collideConnected = def.collideConnected;
m_islandFlag = false;
m_userData = def.userData;
m_edgeA.joint = null;
m_edgeA.other = null;
m_edgeA.prev = null;
m_edgeA.next = null;
m_edgeB.joint = null;
m_edgeB.other = null;
m_edgeB.prev = null;
m_edgeB.next = null;
}
public b2Joint CreateJoint(b2JointDef def)
{
if (IsLocked())
{
return(null);
}
b2Joint j = b2Joint.Create(def);
// Connect to the world list.
j.Prev = null;
j.Next = m_jointList;
if (m_jointList)
{
m_jointList.Prev = j;
}
m_jointList = j;
++m_jointCount;
// Connect to the bodies' doubly linked lists.
j.m_edgeA.joint = j;
j.m_edgeA.other = j.m_bodyB;
j.m_edgeA.prev = null;
j.m_edgeA.next = j.m_bodyA.JointList;
if (j.m_bodyA.JointList)
{
j.m_bodyA.JointList.prev = &j.m_edgeA;
}
j.m_bodyA.JointList = &j.m_edgeA;
j.m_edgeB.joint = j;
j.m_edgeB.other = j.m_bodyA;
j.m_edgeB.prev = null;
j.m_edgeB.next = j.m_bodyB.JointList;
if (j.m_bodyB.JointList)
{
j.m_bodyB.JointList.prev = &j.m_edgeB;
}
j.m_bodyB.JointList = &j.m_edgeB;
b2Body bodyA = def.bodyA;
b2Body bodyB = def.bodyB;
// If the joint prevents collisions, then flag any contacts for filtering.
if (def.collideConnected == false)
{
b2ContactEdge edge = bodyB.ContactList;
while (edge != null)
{
if (edge.other == bodyA)
{
// Flag the contact for filtering at the next time step (where either
// body is awake).
edge.contact.FlagForFiltering();
}
edge = edge.next;
}
}
// Note: creating a joint doesn't wake the bodies.
return(j);
}
internal static b2Joint Create(b2JointDef def)
{
b2Joint joint = null;
switch (def.type)
{
case b2JointType.e_distanceJoint:
{
joint = new b2DistanceJoint((b2DistanceJointDef)def);
}
break;
case b2JointType.e_mouseJoint:
{
joint = new b2MouseJoint((b2MouseJointDef)def);
}
break;
case b2JointType.e_prismaticJoint:
{
joint = new b2PrismaticJoint((b2PrismaticJointDef)def);
}
break;
case b2JointType.e_revoluteJoint:
{
joint = new b2RevoluteJoint((b2RevoluteJointDef)def);
}
break;
case b2JointType.e_pulleyJoint:
{
joint = new b2PulleyJoint((b2PulleyJointDef)def);
}
break;
case b2JointType.e_gearJoint:
{
joint = new b2GearJoint((b2GearJointDef)def);
}
break;
case b2JointType.e_wheelJoint:
{
joint = new b2WheelJoint((b2WheelJointDef)def);
}
break;
case b2JointType.e_weldJoint:
{
joint = new b2WeldJoint((b2WeldJointDef)def);
}
break;
case b2JointType.e_frictionJoint:
{
joint = new b2FrictionJoint((b2FrictionJointDef)def);
}
break;
case b2JointType.e_ropeJoint:
{
joint = new b2RopeJoint((b2RopeJointDef)def);
}
break;
case b2JointType.e_motorJoint:
{
joint = new b2MotorJoint((b2MotorJointDef)def);
}
break;
default:
Debug.Assert(false);
break;
}
return(joint);
}
internal static global::System.Runtime.InteropServices.HandleRef getCPtr(b2JointDef obj)
{
return((obj == null) ? new global::System.Runtime.InteropServices.HandleRef(null, global::System.IntPtr.Zero) : obj.swigCPtr);
}
public b2Joint CreateJoint(b2JointDef def)
{
if (IsLocked())
{
return null;
}
b2Joint j = b2Joint.Create(def);
// Connect to the world list.
j.Prev = null;
j.Next = m_jointList;
if (m_jointList)
{
m_jointList.Prev = j;
}
m_jointList = j;
++m_jointCount;
// Connect to the bodies' doubly linked lists.
j.m_edgeA.joint = j;
j.m_edgeA.other = j.m_bodyB;
j.m_edgeA.prev = null;
j.m_edgeA.next = j.m_bodyA.JointList;
if (j.m_bodyA.JointList) j.m_bodyA.JointList.prev = &j.m_edgeA;
j.m_bodyA.JointList = &j.m_edgeA;
j.m_edgeB.joint = j;
j.m_edgeB.other = j.m_bodyA;
j.m_edgeB.prev = null;
j.m_edgeB.next = j.m_bodyB.JointList;
if (j.m_bodyB.JointList) j.m_bodyB.JointList.prev = &j.m_edgeB;
j.m_bodyB.JointList = &j.m_edgeB;
b2Body bodyA = def.bodyA;
b2Body bodyB = def.bodyB;
// If the joint prevents collisions, then flag any contacts for filtering.
if (def.collideConnected == false)
{
b2ContactEdge edge = bodyB.ContactList;
while (edge != null)
{
if (edge.other == bodyA)
{
// Flag the contact for filtering at the next time step (where either
// body is awake).
edge.contact.FlagForFiltering();
}
edge = edge.next;
}
}
// Note: creating a joint doesn't wake the bodies.
return j;
}
