public virtual void SetActive(bool flag)
{
if (flag == IsActive())
{
return;
}
if (flag)
{
m_flags |= b2BodyFlags.e_activeFlag;
// Create all proxies.
b2BroadPhase broadPhase = m_world.ContactManager.BroadPhase;
for (b2Fixture f = m_fixtureList; f != null; f = f.Next)
{
f.CreateProxies(broadPhase, m_xf);
}
// Contacts are created the next time step.
}
else
{
m_flags &= ~b2BodyFlags.e_activeFlag;
// Destroy all proxies.
b2BroadPhase broadPhase = m_world.ContactManager.BroadPhase;
for (b2Fixture f = m_fixtureList; f != null; f = f.Next)
{
f.DestroyProxies(broadPhase);
}
// Destroy the attached contacts.
b2ContactEdge ce = m_contactList;
while (ce != null)
{
b2ContactEdge ce0 = ce;
ce = ce.Next;
m_world.ContactManager.Destroy(ce0.Contact);
}
m_contactList = null;
}
}
public virtual void DestroyFixture(b2Fixture fixture)
{
Debug.Assert(m_world.IsLocked == false);
if (m_world.IsLocked)
{
return;
}
Debug.Assert(fixture.Body == this);
// Remove the fixture from this body's singly linked list.
Debug.Assert(m_fixtureCount > 0);
b2Fixture node = m_fixtureList;
bool found = false;
while (node != null)
{
if (node == fixture)
{
node = fixture.Next;
found = true;
break;
}
node = node.Next;
}
// You tried to remove a shape that is not attached to this body.
Debug.Assert(found);
// Destroy any contacts associated with the fixture.
b2ContactEdge edge = m_contactList;
while (edge != null)
{
b2Contact c = edge.Contact;
edge = edge.Next;
b2Fixture fixtureA = c.FixtureA;
b2Fixture fixtureB = c.FixtureB;
if (fixture == fixtureA || fixture == fixtureB)
{
// This destroys the contact and removes it from
// this body's contact list.
m_world.ContactManager.Destroy(c);
}
}
if (m_flags.HasFlag(b2BodyFlags.e_activeFlag))
{
b2BroadPhase broadPhase = m_world.ContactManager.BroadPhase;
fixture.DestroyProxies(broadPhase);
}
fixture.Body = null;
fixture.Next = null;
--m_fixtureCount;
// Reset the mass data.
ResetMassData();
}
public void DestroyBody(b2Body b)
{
if (IsLocked())
{
return;
}
// Delete the attached joints.
b2JointEdge je = b.JointList;
while (je)
{
b2JointEdge je0 = je;
je = je.next;
if (m_destructionListener != null)
{
m_destructionListener.SayGoodbye(je0.joint);
}
DestroyJoint(je0.joint);
b.JointList = je;
}
b.JointList = null;
// Delete the attached contacts.
b2ContactEdge ce = b.ContactList;
while (ce)
{
b2ContactEdge ce0 = ce;
ce = ce.next;
m_contactManager.Destroy(ce0.contact);
}
b.ContactList = null;
// Delete the attached fixtures. This destroys broad-phase proxies.
b2Fixture f = b.FixtureList;
while (f != null)
{
b2Fixture f0 = f;
f = f.Next;
if (m_destructionListener != null)
{
m_destructionListener.SayGoodbye(f0);
}
f0.DestroyProxies(m_contactManager.BroadPhase);
b.FixtureList = f;
b.FixtureCount -= 1;
}
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 == m_bodyList)
{
m_bodyList = b.Next;
}
--m_bodyCount;
}
public virtual void DestroyFixture(b2Fixture fixture)
{
Debug.Assert(m_world.IsLocked == false);
if (m_world.IsLocked)
{
return;
}
Debug.Assert(fixture.Body == this);
// Remove the fixture from this body's singly linked list.
Debug.Assert(m_fixtureCount > 0);
b2Fixture node = m_fixtureList;
bool found = false;
while (node != null)
{
if (node == fixture)
{
node = fixture.Next;
found = true;
break;
}
node = node.Next;
}
// You tried to remove a shape that is not attached to this body.
Debug.Assert(found);
// Destroy any contacts associated with the fixture.
b2ContactEdge edge = m_contactList;
while (edge != null)
{
b2Contact c = edge.Contact;
edge = edge.Next;
b2Fixture fixtureA = c.FixtureA;
b2Fixture fixtureB = c.FixtureB;
if (fixture == fixtureA || fixture == fixtureB)
{
// This destroys the contact and removes it from
// this body's contact list.
m_world.ContactManager.Destroy(c);
}
}
if (m_flags.HasFlag(b2BodyFlags.e_activeFlag))
{
b2BroadPhase broadPhase = m_world.ContactManager.BroadPhase;
fixture.DestroyProxies(broadPhase);
}
fixture.Body = null;
fixture.Next = null;
--m_fixtureCount;
// Reset the mass data.
ResetMassData();
}
public virtual void DestroyFixture(b2Fixture fixture)
{
b2Assert(m_world.IsLocked() == false);
if (m_world.IsLocked() == true)
{
return;
}
b2Assert(fixture.m_body == this);
// Remove the fixture from this body's singly linked list.
b2Assert(m_fixtureCount > 0);
b2Fixture* node = &m_fixtureList;
bool found = false;
while (*node != null)
{
if (*node == fixture)
{
*node = fixture.Next;
found = true;
break;
}
node = &(*node).Next;
}
// You tried to remove a shape that is not attached to this body.
b2Assert(found);
// Destroy any contacts associated with the fixture.
b2ContactEdge* edge = m_contactList;
while (edge)
{
b2Contact* c = edge.contact;
edge = edge.next;
b2Fixture fixtureA = c.GetFixtureA();
b2Fixture fixtureB = c.GetFixtureB();
if (fixture == fixtureA || fixture == fixtureB)
{
// This destroys the contact and removes it from
// this body's contact list.
m_world.ContactManager.Destroy(c);
}
}
b2BlockAllocator* allocator = m_world.m_blockAllocator;
if (m_flags & e_activeFlag)
{
b2BroadPhase broadPhase = m_world.ContactManager.BroadPhase;
fixture.DestroyProxies(broadPhase);
}
fixture.Destroy(allocator);
fixture.m_body = null;
fixture.Next = null;
fixture.~b2Fixture();
allocator.Free(fixture, sizeof(b2Fixture));
--m_fixtureCount;
// Reset the mass data.
ResetMassData();
}
public virtual void DestroyFixture(b2Fixture fixture)
{
b2Assert(m_world.IsLocked() == false);
if (m_world.IsLocked() == true)
{
return;
}
b2Assert(fixture.m_body == this);
// Remove the fixture from this body's singly linked list.
b2Assert(m_fixtureCount > 0);
b2Fixture *node = &m_fixtureList;
bool found = false;
while (*node != null)
{
if (*node == fixture)
{
*node = fixture.Next;
found = true;
break;
}
node = &(*node).Next;
}
// You tried to remove a shape that is not attached to this body.
b2Assert(found);
// Destroy any contacts associated with the fixture.
b2ContactEdge *edge = m_contactList;
while (edge)
{
b2Contact *c = edge.contact;
edge = edge.next;
b2Fixture fixtureA = c.GetFixtureA();
b2Fixture fixtureB = c.GetFixtureB();
if (fixture == fixtureA || fixture == fixtureB)
{
// This destroys the contact and removes it from
// this body's contact list.
m_world.ContactManager.Destroy(c);
}
}
b2BlockAllocator *allocator = m_world.m_blockAllocator;
if (m_flags & e_activeFlag)
{
b2BroadPhase broadPhase = m_world.ContactManager.BroadPhase;
fixture.DestroyProxies(broadPhase);
}
fixture.Destroy(allocator);
fixture.m_body = null;
fixture.Next = null;
fixture.~b2Fixture();
allocator.Free(fixture, sizeof(b2Fixture));
--m_fixtureCount;
// Reset the mass data.
ResetMassData();
}
