internal void Collide()
{
// Update awake contacts.
Contact c = ContactList;
while (c != null)
{
Fixture fixtureA = c.FixtureA;
Fixture fixtureB = c.FixtureB;
int indexA = c.ChildIndexA;
int indexB = c.ChildIndexB;
Body bodyA = fixtureA.Body;
Body bodyB = fixtureB.Body;
if (bodyA.Awake == false && bodyB.Awake == false)
{
c = c.Next;
continue;
}
// Is this contact flagged for filtering?
if ((c.Flags & ContactFlags.Filter) == ContactFlags.Filter)
{
// Should these bodies collide?
if (bodyB.ShouldCollide(bodyA) == false)
{
Contact cNuke = c;
c = cNuke.Next;
Destroy(cNuke);
continue;
}
// Check user filtering.
if (ContactFilter != null && ContactFilter(fixtureA, fixtureB) == false)
{
Contact cNuke = c;
c = cNuke.Next;
Destroy(cNuke);
continue;
}
// Clear the filtering flag.
c.Flags &= ~ContactFlags.Filter;
}
int proxyIdA = fixtureA.Proxies[indexA].ProxyId;
int proxyIdB = fixtureB.Proxies[indexB].ProxyId;
bool overlap = BroadPhase.TestOverlap(proxyIdA, proxyIdB);
// Here we destroy contacts that cease to overlap in the broad-phase.
if (overlap == false)
{
Contact cNuke = c;
c = cNuke.Next;
Destroy(cNuke);
continue;
}
// The contact persists.
c.Update(this);
c = c.Next;
}
}
internal void Collide()
{
// Update awake contacts.
Contact c = m_contactList;
while (c != null)
{
Fixture fixtureA = c.FixtureA;
Fixture fixtureB = c.FixtureB;
int indexA = c.ChildIndexA;
int indexB = c.ChildIndexB;
Body bodyA = fixtureA.Body;
Body bodyB = fixtureB.Body;
// Is this contact flagged for filtering?
if ((c.m_flags & CollisionFlags.Filter) == CollisionFlags.Filter)
{
// Should these bodies collide?
if (bodyB.ShouldCollide(bodyA) == false)
{
Contact cNuke = c;
c = cNuke.GetNext();
Destroy(cNuke);
continue;
}
// Check user filtering.
if (m_contactFilter != null && m_contactFilter.ShouldCollide(fixtureA, fixtureB) == false)
{
Contact cNuke = c;
c = cNuke.GetNext();
Destroy(cNuke);
continue;
}
// Clear the filtering flag.
c.m_flags &= ~CollisionFlags.Filter;
}
bool activeA = bodyA.IsAwake() && bodyA.m_type != BodyType.Static;
bool activeB = bodyB.IsAwake() && bodyB.m_type != BodyType.Static;
// At least one body must be awake and it must be dynamic or kinematic.
if (activeA == false && activeB == false)
{
c = c.GetNext();
continue;
}
int proxyIdA = fixtureA.m_proxies[indexA].proxyId;
int proxyIdB = fixtureB.m_proxies[indexB].proxyId;
bool overlap = m_broadPhase.TestOverlap(proxyIdA, proxyIdB);
// Here we destroy contacts that cease to overlap in the broad-phase.
if (overlap == false)
{
Contact cNuke = c;
c = cNuke.GetNext();
Destroy(cNuke);
continue;
}
// The contact persists.
c.Update(m_contactListener);
c = c.GetNext();
}
}
// This is the top level collision call for the time step. Here
// all the narrow phase collision is processed for the world
// contact list.
public void Collide()
{
// Update awake contacts.
Contact c = _contactList;
while (c != null)
{
Fixture fixtureA = c.GetFixtureA();
Fixture fixtureB = c.GetFixtureB();
Body bodyA = fixtureA.GetBody();
Body bodyB = fixtureB.GetBody();
if (bodyA.IsSleeping() && bodyB.IsSleeping())
{
c = c.GetNext();
continue;
}
// Is this contact flagged for filtering?
if ((c.Flags & ContactFlag.FilterFlag) == ContactFlag.FilterFlag)
{
//TODO: The following code (next 4 if blocks) use a class and thus copy by ref. It might expect to copy by value
// Are both bodies static?
if (bodyA.IsStatic() && bodyB.IsStatic())
{
Contact cNuke = c;
c = cNuke.GetNext();
Destroy(cNuke);
continue;
}
// Does a joint override collision?
if (bodyB.IsConnected(bodyA))
{
Contact cNuke = c;
c = cNuke.GetNext();
Destroy(cNuke);
continue;
}
// Check user filtering.
if (_contactFilter.ShouldCollide(fixtureA, fixtureB) == false)
{
Contact cNuke = c;
c = cNuke.GetNext();
Destroy(cNuke);
continue;
}
// Clear the filtering flag.
c.Flags &= ~ContactFlag.FilterFlag;
}
int proxyIdA = fixtureA.ProxyId;
int proxyIdB = fixtureB.ProxyId;
bool overlap = _broadPhase.TestOverlap(proxyIdA, proxyIdB);
// Here we destroy contacts that cease to overlap in the broad-phase.
if (overlap == false)
{
Contact cNuke = c;
c = cNuke.GetNext();
Destroy(cNuke);
continue;
}
// The contact persists.
c.Update(_contactListener);
c = c.GetNext();
}
}
public void Collide()
{
var current = ContactList.First;
// Update awake contacts.
while (current != default)
{
var c = current.Value;
var fixtureA = c.GetFixtureA();
var fixtureB = c.GetFixtureB();
var indexA = c.GetChildIndexA();
var indexB = c.GetChildIndexB();
var bodyA = fixtureA.Body;
var bodyB = fixtureB.Body;
// Is this contact flagged for filtering?
if (c.Flags.HasFlag(Contact.ContactFlag.FilterFlag))
{
// Should these bodies collide?
if (!bodyB.ShouldCollide(bodyA))
{
current = current.Next;
Destroy(c);
continue;
}
// Check user filtering.
if (ContactFilter?.ShouldCollide(fixtureA, fixtureB) == false)
{
current = current.Next;
Destroy(c);
continue;
}
// Clear the filtering flag.
c.Flags &= ~Contact.ContactFlag.FilterFlag;
}
var activeA = bodyA.IsAwake && bodyA.BodyType != BodyType.StaticBody;
var activeB = bodyB.IsAwake && bodyB.BodyType != BodyType.StaticBody;
// At least one body must be awake and it must be dynamic or kinematic.
if (activeA == false && activeB == false)
{
current = current.Next;
continue;
}
var proxyIdA = fixtureA.Proxies[indexA].ProxyId;
var proxyIdB = fixtureB.Proxies[indexB].ProxyId;
var overlap = BroadPhase.TestOverlap(proxyIdA, proxyIdB);
// Here we destroy contacts that cease to overlap in the broad-phase.
if (overlap == false)
{
current = current.Next;
Destroy(c);
continue;
}
// The contact persists.
c.Update(ContactListener);
current = current.Next;
}
}
