|
public Destroy ( |
||
| broadPhase | ||
| return | void | |
/// <summary>
/// Destroy a fixture. This removes the fixture from the broad-phase and
/// therefore destroys any contacts associated with this fixture. All fixtures
/// attached to a body are implicitly destroyed when the body is destroyed.
/// @warning This function is locked during callbacks.
/// </summary>
/// <param name="fixture">The fixture to be removed.</param>
public void DestroyFixture(Fixture fixture)
{
Box2DXDebug.Assert(_world._lock == false);
if (_world._lock == true)
{
return;
}
Box2DXDebug.Assert(fixture.Body == this);
// Remove the fixture from this body's singly linked list.
Box2DXDebug.Assert(_fixtureCount > 0);
Fixture node = _fixtureList;
Fixture prev = null;
bool found = false;
while (node != null)
{
if (node == fixture)
{
if (prev == null) //We are root
{
_fixtureList = fixture.Next;
}
else
{
prev._next = fixture.Next;
}
found = true;
break;
}
prev = node;
node = node.Next;
}
// You tried to remove a shape that is not attached to this body.
Box2DXDebug.Assert(found);
BroadPhase broadPhase = _world._broadPhase;
fixture.Destroy(broadPhase);
fixture._body = null;
fixture._next = null;
--_fixtureCount;
}
/// Destroy a fixture. This removes the fixture from the broad-phase and
/// therefore destroys any contacts associated with this fixture. All fixtures
/// attached to a body are implicitly destroyed when the body is destroyed.
/// @param fixture the fixture to be removed.
/// @warning This function is locked during callbacks.
public void DestroyFixture(ref Fixture fixture)
{
Box2DXDebug.Assert(_world.IsLocked() == false);
if (_world.IsLocked() == true)
{
return;
}
Box2DXDebug.Assert(fixture.Body == this);
// Remove the fixture from this body's singly linked list.
Box2DXDebug.Assert(_fixtureCount > 0);
Fixture node = _fixtureList;
bool found = false;
while (node != null)
{
if (node == fixture)
{
_fixtureList = fixture._next;
found = true;
break;
}
node = node._next;
}
// You tried to remove a shape that is not attached to this body.
Box2DXDebug.Assert(found);
// Destroy any contacts associated with the fixture.
ContactEdge edge = _contactList;
while (edge != null)
{
Contact c = edge.Contact;
edge = edge.Next;
Fixture fixtureA = c.GetFixtureA();
Fixture fixtureB = c.GetFixtureB();
if (fixture == fixtureA || fixture == fixtureB)
{
// This destroys the contact and removes it from
// this body's contact list.
_world._contactManager.Destroy(c);
}
}
bool needMassUpdate = fixture._massData.Mass > 0.0f || fixture._massData.I > 0.0f;
BroadPhase broadPhase = _world._contactManager._broadPhase;
fixture.Destroy(broadPhase);
fixture.Body = null;
fixture._next = null;
--_fixtureCount;
// Adjust mass properties if needed.
if (needMassUpdate)
{
ResetMass();
}
}
/// Destroy a fixture. This removes the fixture from the broad-phase and
/// therefore destroys any contacts associated with this fixture. All fixtures
/// attached to a body are implicitly destroyed when the body is destroyed.
/// @param fixture the fixture to be removed.
/// @warning This function is locked during callbacks.
public void DestroyFixture(ref Fixture fixture)
{
Box2DXDebug.Assert(_world.IsLocked() == false);
if (_world.IsLocked() == true)
{
return;
}
Box2DXDebug.Assert(fixture.Body == this);
// Remove the fixture from this body's singly linked list.
Box2DXDebug.Assert(_fixtureCount > 0);
Fixture node = _fixtureList;
bool found = false;
while (node != null)
{
if (node == fixture)
{
_fixtureList = fixture._next;
found = true;
break;
}
node = node._next;
}
// You tried to remove a shape that is not attached to this body.
Box2DXDebug.Assert(found);
// Destroy any contacts associated with the fixture.
ContactEdge edge = _contactList;
while (edge != null)
{
Contact c = edge.Contact;
edge = edge.Next;
Fixture fixtureA = c.GetFixtureA();
Fixture fixtureB = c.GetFixtureB();
if (fixture == fixtureA || fixture == fixtureB)
{
// This destroys the contact and removes it from
// this body's contact list.
_world._contactManager.Destroy(c);
}
}
bool needMassUpdate = fixture._massData.Mass > 0.0f || fixture._massData.I > 0.0f;
BroadPhase broadPhase = _world._contactManager._broadPhase;
fixture.Destroy(broadPhase);
fixture.Body = null;
fixture._next = null;
--_fixtureCount;
// Adjust mass properties if needed.
if (needMassUpdate)
{
ResetMass();
}
}
/// <summary>
/// Destroy a fixture. This removes the fixture from the broad-phase and
/// therefore destroys any contacts associated with this fixture. All fixtures
/// attached to a body are implicitly destroyed when the body is destroyed.
/// @warning This function is locked during callbacks.
/// </summary>
/// <param name="fixture">The fixture to be removed.</param>
public void DestroyFixture(Fixture fixture)
{
Box2DXDebug.Assert(_world._lock == false);
if (_world._lock == true)
{
return;
}
Box2DXDebug.Assert(fixture.Body == this);
// Remove the fixture from this body's singly linked list.
Box2DXDebug.Assert(_fixtureCount > 0);
Fixture node = _fixtureList;
Fixture prev = null;
bool found = false;
while (node != null)
{
if (node == fixture)
{
if (prev == null) { //We are root
_fixtureList = fixture.Next;
} else {
prev._next = fixture.Next;
}
found = true;
break;
}
prev = node;
node = node.Next;
}
// You tried to remove a shape that is not attached to this body.
Box2DXDebug.Assert(found);
BroadPhase broadPhase = _world._broadPhase;
fixture.Destroy(broadPhase);
fixture._body = null;
fixture._next = null;
--_fixtureCount;
}
public void DestroyBody(Body b)
{
Box2DXDebug.Assert(_bodyCount > 0);
Box2DXDebug.Assert(IsLocked() == false);
if (IsLocked())
{
return;
}
// Delete the attached joints.
JointEdge je = b._jointList;
while (je != null)
{
JointEdge je0 = je;
je = je.Next;
if (_destructionListener != null)
{
_destructionListener.SayGoodbye(je0.Joint);
}
DestroyJoint(je0.Joint);
}
b._jointList = null;
// Delete the attached contacts.
ContactEdge ce = b._contactList;
while (ce != null)
{
ContactEdge ce0 = ce;
ce = ce.Next;
_contactManager.Destroy(ce0.Contact);
}
b._contactList = null;
// Delete the attached fixtures. This destroys broad-phase proxies.
Fixture f = b._fixtureList;
while (f != null)
{
Fixture f0 = f;
f = f._next;
if (_destructionListener != null)
{
_destructionListener.SayGoodbye(f0);
}
f0.Destroy(_contactManager._broadPhase);
f0 = null;
}
b._fixtureList = null;
b._fixtureCount = 0;
// Remove world body list.
if (b._prev != null)
{
b._prev._next = b._next;
}
if (b._next != null)
{
b._next._prev = b._prev;
}
if (b == _bodyList)
{
_bodyList = b._next;
}
--_bodyCount;
b = null;
}
