public int AddProxy(ref FixtureProxy proxy)
{
int proxyID = _currID++;
proxy.ProxyId = proxyID;
AABB aabb = Fatten(ref proxy.AABB);
Element<FixtureProxy> qtnode = new Element<FixtureProxy>(proxy, aabb);
_idRegister.Add(proxyID, qtnode);
_quadTree.AddNode(qtnode);
return proxyID;
}
// These support body activation/deactivation.
internal void CreateProxies(IBroadPhase broadPhase, ref Transform xf)
{
Debug.Assert(ProxyCount == 0);
// Create proxies in the broad-phase.
ProxyCount = Shape.ChildCount;
for (int i = 0; i < ProxyCount; ++i)
{
FixtureProxy proxy = new FixtureProxy();
Shape.ComputeAABB(out proxy.AABB, ref xf, i);
proxy.Fixture = this;
proxy.ChildIndex = i;
//FPE note: This line needs to be after the previous two because FixtureProxy is a struct
proxy.ProxyId = broadPhase.AddProxy(ref proxy);
Proxies[i] = proxy;
}
}
// These support body activation/deactivation.
internal void CreateProxies(IBroadPhase broadPhase, ref Transform xf)
{
if (ProxyCount != 0)
{
throw new InvalidOperationException("Proxies allready created for this Fixture.");
}
// Create proxies in the broad-phase.
ProxyCount = Shape.ChildCount;
for (int i = 0; i < ProxyCount; ++i)
{
FixtureProxy proxy = new FixtureProxy();
proxy.Fixture = this;
proxy.ChildIndex = i;
Shape.ComputeAABB(out proxy.AABB, ref xf, i);
proxy.ProxyId = broadPhase.AddProxy(ref proxy.AABB);
broadPhase.SetProxy(proxy.ProxyId, ref proxy);
Proxies[i] = proxy;
}
}
internal void Synchronize(IBroadPhase broadPhase, ref Transform transform1, ref Transform transform2)
{
if (ProxyCount == 0)
{
return;
}
for (int i = 0; i < ProxyCount; ++i)
{
FixtureProxy proxy = Proxies[i];
// Compute an AABB that covers the swept Shape (may miss some rotation effect).
AABB aabb1, aabb2;
Shape.ComputeAABB(out aabb1, ref transform1, proxy.ChildIndex);
Shape.ComputeAABB(out aabb2, ref transform2, proxy.ChildIndex);
proxy.AABB.Combine(ref aabb1, ref aabb2);
Vector2 displacement = transform2.p - transform1.p;
broadPhase.MoveProxy(proxy.ProxyId, ref proxy.AABB, displacement);
}
}
// Broad-phase callback.
private void AddPair(ref FixtureProxy proxyA, ref FixtureProxy proxyB)
{
Fixture fixtureA = proxyA.Fixture;
Fixture fixtureB = proxyB.Fixture;
int indexA = proxyA.ChildIndex;
int indexB = proxyB.ChildIndex;
Body bodyA = fixtureA.Body;
Body bodyB = fixtureB.Body;
// Are the fixtures on the same body?
if (bodyA == bodyB)
{
return;
}
// Does a contact already exist?
ContactEdge edge = bodyB.ContactList;
while (edge != null)
{
if (edge.Other == bodyA)
{
Fixture fA = edge.Contact.FixtureA;
Fixture fB = edge.Contact.FixtureB;
int iA = edge.Contact.ChildIndexA;
int iB = edge.Contact.ChildIndexB;
if (fA == fixtureA && fB == fixtureB && iA == indexA && iB == indexB)
{
// A contact already exists.
return;
}
if (fA == fixtureB && fB == fixtureA && iA == indexB && iB == indexA)
{
// A contact already exists.
return;
}
}
edge = edge.Next;
}
// Does a joint override collision? Is at least one body dynamic?
if (bodyB.ShouldCollide(bodyA) == false)
return;
//Check default filter
if (ShouldCollide(fixtureA, fixtureB) == false)
return;
// Check user filtering.
if (ContactFilter != null && ContactFilter(fixtureA, fixtureB) == false)
return;
if (fixtureA.BeforeCollision != null && fixtureA.BeforeCollision(fixtureA, fixtureB) == false)
return;
if (fixtureB.BeforeCollision != null && fixtureB.BeforeCollision(fixtureB, fixtureA) == false)
return;
// Call the factory.
Contact c = Contact.Create(fixtureA, indexA, fixtureB, indexB);
// Contact creation may swap fixtures.
fixtureA = c.FixtureA;
fixtureB = c.FixtureB;
bodyA = fixtureA.Body;
bodyB = fixtureB.Body;
// Insert into the world.
ContactList.Add(c);
#if USE_ACTIVE_CONTACT_SET
ActiveContacts.Add(c);
#endif
// Connect to island graph.
// Connect to body A
c.NodeA.Contact = c;
c.NodeA.Other = bodyB;
c.NodeA.Prev = null;
c.NodeA.Next = bodyA.ContactList;
if (bodyA.ContactList != null)
{
bodyA.ContactList.Prev = c.NodeA;
}
bodyA.ContactList = c.NodeA;
// Connect to body B
c.NodeB.Contact = c;
c.NodeB.Other = bodyA;
c.NodeB.Prev = null;
c.NodeB.Next = bodyB.ContactList;
if (bodyB.ContactList != null)
{
bodyB.ContactList.Prev = c.NodeB;
}
bodyB.ContactList = c.NodeB;
}
private void Collision(ref FixtureProxy fp1, ref FixtureProxy fp2)
{
}
public Fixture(Body body, Shape shape, Object userData)
{
CollisionFilter = new CollisionFilter(this);
//Fixture defaults
Friction = 0.2f;
Restitution = 0;
IsSensor = false;
Body = body;
UserData = userData;
if (Settings.ConserveMemory)
Shape = shape;
else
Shape = shape.Clone();
// Reserve proxy space
int childCount = Shape.ChildCount;
Proxies = new FixtureProxy[childCount];
for (int i = 0; i < childCount; ++i)
{
Proxies[i] = new FixtureProxy();
Proxies[i].Fixture = null;
Proxies[i].ProxyId = BroadPhase.NullProxy;
}
ProxyCount = 0;
FixtureId = _fixtureIdCounter++;
if ((Body.Flags & BodyFlags.Enabled) == BodyFlags.Enabled)
{
BroadPhase broadPhase = Body.World.ContactManager.BroadPhase;
CreateProxies(broadPhase, ref Body.Xf);
}
Body.FixtureList.Add(this);
// Adjust mass properties if needed.
if (Shape._density > 0.0f)
{
Body.ResetMassData();
}
// Let the world know we have a new fixture. This will cause new contacts
// to be created at the beginning of the next time step.
Body.World.Flags |= WorldFlags.NewFixture;
if (Body.World.FixtureAdded != null)
{
Body.World.FixtureAdded(this);
}
}
// Broad-phase callback.
void AddPair(ref FixtureProxy proxyA, ref FixtureProxy proxyB)
{
var fixtureA = proxyA.Fixture;
var fixtureB = proxyB.Fixture;
var indexA = proxyA.ChildIndex;
var indexB = proxyB.ChildIndex;
var bodyA = fixtureA.Body;
var bodyB = fixtureB.Body;
// Are the fixtures on the same body?
if (bodyA == bodyB)
{
return;
}
// Does a contact already exist?
var edge = bodyB.ContactList;
while (edge != null)
{
if (edge.Other == bodyA)
{
var fA = edge.Contact.FixtureA;
var fB = edge.Contact.FixtureB;
int iA = edge.Contact.ChildIndexA;
int iB = edge.Contact.ChildIndexB;
if (fA == fixtureA && fB == fixtureB && iA == indexA && iB == indexB)
{
// A contact already exists.
return;
}
if (fA == fixtureB && fB == fixtureA && iA == indexB && iB == indexA)
{
// A contact already exists.
return;
}
}
edge = edge.Next;
}
// Does a joint override collision? Is at least one body dynamic?
if (bodyB.ShouldCollide(bodyA) == false)
{
return;
}
// Check default filter
if (ShouldCollide(fixtureA, fixtureB) == false)
{
return;
}
// Check user filtering.
if (OnContactFilter != null && OnContactFilter(fixtureA, fixtureB) == false)
{
return;
}
// FPE feature: BeforeCollision delegate
if (fixtureA.BeforeCollision != null && fixtureA.BeforeCollision(fixtureA, fixtureB) == false)
{
return;
}
if (fixtureB.BeforeCollision != null && fixtureB.BeforeCollision(fixtureB, fixtureA) == false)
{
return;
}
// Call the factory.
var c = Contact.Create(fixtureA, indexA, fixtureB, indexB);
if (c == null)
{
return;
}
// Contact creation may swap fixtures.
fixtureA = c.FixtureA;
fixtureB = c.FixtureB;
bodyA = fixtureA.Body;
bodyB = fixtureB.Body;
// Insert into the world.
ContactList.Add(c);
#if USE_ACTIVE_CONTACT_SET
ActiveContacts.Add(c);
#endif
// Connect to island graph.
// Connect to body A
c._nodeA.Contact = c;
c._nodeA.Other = bodyB;
c._nodeA.Prev = null;
c._nodeA.Next = bodyA.ContactList;
if (bodyA.ContactList != null)
{
bodyA.ContactList.Prev = c._nodeA;
}
bodyA.ContactList = c._nodeA;
// Connect to body B
c._nodeB.Contact = c;
c._nodeB.Other = bodyA;
c._nodeB.Prev = null;
c._nodeB.Next = bodyB.ContactList;
if (bodyB.ContactList != null)
{
bodyB.ContactList.Prev = c._nodeB;
}
bodyB.ContactList = c._nodeB;
// Wake up the bodies
if (fixtureA.IsSensor == false && fixtureB.IsSensor == false)
{
bodyA.IsAwake = true;
bodyB.IsAwake = true;
}
}
// Broad-phase callback.
private void AddPair(ref FixtureProxy proxyA, ref FixtureProxy proxyB)
{
Fixture fixtureA = proxyA.Fixture;
Fixture fixtureB = proxyB.Fixture;
int indexA = proxyA.ChildIndex;
int indexB = proxyB.ChildIndex;
Body bodyA = fixtureA.Body;
Body bodyB = fixtureB.Body;
// Are the fixtures on the same body?
if (bodyA == bodyB)
{
return;
}
// Does a contact already exist?
ContactEdge edge = bodyB.ContactList;
while (edge != null)
{
if (edge.Other == bodyA)
{
Fixture fA = edge.Contact.FixtureA;
Fixture fB = edge.Contact.FixtureB;
int iA = edge.Contact.ChildIndexA;
int iB = edge.Contact.ChildIndexB;
if (fA == fixtureA && fB == fixtureB && iA == indexA && iB == indexB)
{
// A contact already exists.
return;
}
if (fA == fixtureB && fB == fixtureA && iA == indexB && iB == indexA)
{
// A contact already exists.
return;
}
}
edge = edge.Next;
}
// Does a joint override collision? Is at least one body dynamic?
if (bodyB.ShouldCollide(bodyA) == false)
{
return;
}
// Check user filtering.
if (ContactFilter != null && ContactFilter(fixtureA, fixtureB) == false)
{
return;
}
// Call the factory.
Contact c = Contact.Create(fixtureA, indexA, fixtureB, indexB);
// Contact creation may swap fixtures.
fixtureA = c.FixtureA;
fixtureB = c.FixtureB;
indexA = c.ChildIndexA;
indexB = c.ChildIndexB;
bodyA = fixtureA.Body;
bodyB = fixtureB.Body;
// Insert into the world.
c.Prev = null;
c.Next = ContactList;
if (ContactList != null)
{
ContactList.Prev = c;
}
ContactList = c;
// Connect to island graph.
// Connect to body A
c.NodeA.Contact = c;
c.NodeA.Other = bodyB;
c.NodeA.Prev = null;
c.NodeA.Next = bodyA.ContactList;
if (bodyA.ContactList != null)
{
bodyA.ContactList.Prev = c.NodeA;
}
bodyA.ContactList = c.NodeA;
// Connect to body B
c.NodeB.Contact = c;
c.NodeB.Other = bodyA;
c.NodeB.Prev = null;
c.NodeB.Next = bodyB.ContactList;
if (bodyB.ContactList != null)
{
bodyB.ContactList.Prev = c.NodeB;
}
bodyB.ContactList = c.NodeB;
++ContactCount;
}
// These support body activation/deactivation.
internal void CreateProxies(IBroadPhase broadPhase, ref Transform xf)
{
Debug.Assert(ProxyCount == 0);
// Create proxies in the broad-phase.
ProxyCount = Shape.ChildCount;
for (int i = 0; i < ProxyCount; ++i)
{
FixtureProxy proxy = new FixtureProxy();
Shape.ComputeAABB(out proxy.AABB, ref xf, i);
proxy.Fixture = this;
proxy.ChildIndex = i;
proxy.ProxyId = broadPhase.AddProxy(ref proxy);
Proxies[i] = proxy;
}
}
// These support body activation/deactivation.
internal void CreateProxies(IBroadPhase broadPhase, ref Transform xf)
{
Debug.Assert(ProxyCount == 0);
// Create proxies in the broad-phase.
ProxyCount = Shape.ChildCount;
for (int i = 0; i < ProxyCount; ++i)
{
FixtureProxy proxy = new FixtureProxy();
Shape.ComputeAABB(out proxy.AABB, ref xf, i);
proxy.Fixture = this;
proxy.ChildIndex = i;
//FPE note: This line needs to be after the previous two because FixtureProxy is a struct
proxy.ProxyId = broadPhase.AddProxy(ref proxy);
Proxies[i] = proxy;
}
}
public abstract void OnBroadphaseCollision(ref FixtureProxy fp1, ref FixtureProxy fp2);
public void OnBroadphaseCollision(ref FixtureProxy fixtureProxyA, ref FixtureProxy fixtureProxyB)
{
}
public override void OnBroadphaseCollision(ref FixtureProxy fp1,
ref FixtureProxy fp2)
{
}
// Broad-phase callback.
void addPair( ref FixtureProxy proxyA, ref FixtureProxy proxyB )
{
var fixtureA = proxyA.fixture;
var fixtureB = proxyB.fixture;
var indexA = proxyA.childIndex;
var indexB = proxyB.childIndex;
var bodyA = fixtureA.body;
var bodyB = fixtureB.body;
// Are the fixtures on the same body?
if( bodyA == bodyB )
return;
// Does a contact already exist?
var edge = bodyB.contactList;
while( edge != null )
{
if( edge.other == bodyA )
{
var fA = edge.contact.fixtureA;
var fB = edge.contact.fixtureB;
int iA = edge.contact.childIndexA;
int iB = edge.contact.childIndexB;
if( fA == fixtureA && fB == fixtureB && iA == indexA && iB == indexB )
{
// A contact already exists.
return;
}
if( fA == fixtureB && fB == fixtureA && iA == indexB && iB == indexA )
{
// A contact already exists.
return;
}
}
edge = edge.next;
}
// Does a joint override collision? Is at least one body dynamic?
if( bodyB.shouldCollide( bodyA ) == false )
return;
// Check default filter
if( shouldCollide( fixtureA, fixtureB ) == false )
return;
// Check user filtering.
if( onContactFilter != null && onContactFilter( fixtureA, fixtureB ) == false )
return;
// FPE feature: BeforeCollision delegate
if( fixtureA.beforeCollision != null && fixtureA.beforeCollision( fixtureA, fixtureB ) == false )
return;
if( fixtureB.beforeCollision != null && fixtureB.beforeCollision( fixtureB, fixtureA ) == false )
return;
// Call the factory.
var c = Contact.create( fixtureA, indexA, fixtureB, indexB );
if( c == null )
return;
// Contact creation may swap fixtures.
fixtureA = c.fixtureA;
fixtureB = c.fixtureB;
bodyA = fixtureA.body;
bodyB = fixtureB.body;
// Insert into the world.
contactList.Add( c );
#if USE_ACTIVE_CONTACT_SET
ActiveContacts.Add(c);
#endif
// Connect to island graph.
// Connect to body A
c._nodeA.contact = c;
c._nodeA.other = bodyB;
c._nodeA.prev = null;
c._nodeA.next = bodyA.contactList;
if( bodyA.contactList != null )
bodyA.contactList.prev = c._nodeA;
bodyA.contactList = c._nodeA;
// Connect to body B
c._nodeB.contact = c;
c._nodeB.other = bodyA;
c._nodeB.prev = null;
c._nodeB.next = bodyB.contactList;
if( bodyB.contactList != null )
bodyB.contactList.prev = c._nodeB;
bodyB.contactList = c._nodeB;
// Wake up the bodies
if( fixtureA.isSensor == false && fixtureB.isSensor == false )
{
bodyA.isAwake = true;
bodyB.isAwake = true;
}
}
private bool QueryAABBCallbackWrapper(int proxyId)
{
FixtureProxy proxy = ContactManager.BroadPhase.GetUserData <FixtureProxy>(proxyId);
return(_queryAABBCallback(proxy));
}
// Broad-phase callback.
private void AddPair(int proxyIdA, int proxyIdB)
{
FixtureProxy proxyA = BroadPhase.GetProxy(proxyIdA);
FixtureProxy proxyB = BroadPhase.GetProxy(proxyIdB);
Fixture fixtureA = proxyA.Fixture;
Fixture fixtureB = proxyB.Fixture;
int indexA = proxyA.ChildIndex;
int indexB = proxyB.ChildIndex;
Body bodyA = fixtureA.Body;
Body bodyB = fixtureB.Body;
// Are the fixtures on the same body?
if (bodyA == bodyB)
{
return;
}
// Does a contact already exist?
for (ContactEdge ceB = bodyB.ContactList; ceB != null; ceB = ceB.Next)
{
if (ceB.Other == bodyA)
{
Fixture fA = ceB.Contact.FixtureA;
Fixture fB = ceB.Contact.FixtureB;
int iA = ceB.Contact.ChildIndexA;
int iB = ceB.Contact.ChildIndexB;
if (fA == fixtureA && fB == fixtureB && iA == indexA && iB == indexB)
{
// A contact already exists.
return;
}
if (fA == fixtureB && fB == fixtureA && iA == indexB && iB == indexA)
{
// A contact already exists.
return;
}
}
}
// Does a joint override collision? Is at least one body dynamic?
if (bodyB.ShouldCollide(bodyA) == false)
{
return;
}
//Check default filter
if (ShouldCollide(fixtureA, fixtureB) == false)
{
return;
}
// Check user filtering.
var contactFilterHandler = ContactFilter;
if (contactFilterHandler != null)
{
if (contactFilterHandler(fixtureA, fixtureB) == false)
{
return;
}
}
//FPE feature: BeforeCollision delegate
var beforeCollisionHandlerA = fixtureA.BeforeCollision;
if (beforeCollisionHandlerA != null)
{
if (beforeCollisionHandlerA(fixtureA, fixtureB) == false)
{
return;
}
}
var beforeCollisionHandlerB = fixtureB.BeforeCollision;
if (beforeCollisionHandlerB != null)
{
if (beforeCollisionHandlerB(fixtureB, fixtureA) == false)
{
return;
}
}
// Call the factory.
Contact c = Contact.Create(this, fixtureA, indexA, fixtureB, indexB);
if (c == null)
{
return;
}
// Contact creation may swap fixtures.
fixtureA = c.FixtureA;
fixtureB = c.FixtureB;
bodyA = fixtureA.Body;
bodyB = fixtureB.Body;
// Insert into the world.
c.Prev = ContactList;
c.Next = c.Prev.Next;
c.Prev.Next = c;
c.Next.Prev = c;
ContactCount++;
#if USE_ACTIVE_CONTACT_SET
ActiveContacts.Add(c);
#endif
// Connect to island graph.
// Connect to body A
c._nodeA.Contact = c;
c._nodeA.Other = bodyB;
c._nodeA.Prev = null;
c._nodeA.Next = bodyA.ContactList;
if (bodyA.ContactList != null)
{
bodyA.ContactList.Prev = c._nodeA;
}
bodyA.ContactList = c._nodeA;
// Connect to body B
c._nodeB.Contact = c;
c._nodeB.Other = bodyA;
c._nodeB.Prev = null;
c._nodeB.Next = bodyB.ContactList;
if (bodyB.ContactList != null)
{
bodyB.ContactList.Prev = c._nodeB;
}
bodyB.ContactList = c._nodeB;
// Wake up the bodies
if (fixtureA.IsSensor == false && fixtureB.IsSensor == false)
{
bodyA.Awake = true;
bodyB.Awake = true;
}
}
public void OnBroadphaseCollision(ref FixtureProxy fp1, ref FixtureProxy fp2)
{
bAlreadyJumped = false;
}
internal Fixture(Body body, Shape shape, float density)
{
//Fixture defaults
Friction = 0.2f;
_collisionCategories = CollisionCategory.All;
_collidesWith = CollisionCategory.All;
IsSensor = false;
Body = body;
#if ConserveMemory
Shape = shape;
#else
Shape = shape.Clone();
#endif
// Reserve proxy space
int childCount = Shape.ChildCount;
Proxies = new FixtureProxy[childCount];
for (int i = 0; i < childCount; ++i)
{
Proxies[i] = new FixtureProxy();
Proxies[i].Fixture = null;
Proxies[i].ProxyId = BroadPhase.NullProxy;
}
ProxyCount = 0;
Density = density;
FixtureId = _fixtureIdCounter++;
}
