public ContactManager(World argPool)
{
ContactList = null;
ContactCount = 0;
ContactFilter = new ContactFilter();
ContactListener = null;
BroadPhase = new BroadPhase();
pool = argPool;
}
/// <summary>
/// Internal method
/// </summary>
/// <param name="broadPhase"></param>
/// <param name="transform1"></param>
/// <param name="transform2"></param>
protected internal void Synchronize(BroadPhase broadPhase, Transform transform1, 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 = pool1;
AABB aab = pool2;
Shape.ComputeAABB(aabb1, transform1, proxy.ChildIndex);
Shape.ComputeAABB(aab, transform2, proxy.ChildIndex);
proxy.AABB.LowerBound.X = aabb1.LowerBound.X < aab.LowerBound.X ? aabb1.LowerBound.X : aab.LowerBound.X;
proxy.AABB.LowerBound.Y = aabb1.LowerBound.Y < aab.LowerBound.Y ? aabb1.LowerBound.Y : aab.LowerBound.Y;
proxy.AABB.UpperBound.X = aabb1.UpperBound.X > aab.UpperBound.X ? aabb1.UpperBound.X : aab.UpperBound.X;
proxy.AABB.UpperBound.Y = aabb1.UpperBound.Y > aab.UpperBound.Y ? aabb1.UpperBound.Y : aab.UpperBound.Y;
displacement.X = transform2.P.X - transform1.P.X;
displacement.Y = transform2.P.Y - transform1.P.Y;
broadPhase.MoveProxy(proxy.ProxyId, proxy.AABB, displacement);
}
}
/// <summary>
/// Internal method
/// </summary>
/// <param name="broadPhase"></param>
public void DestroyProxies(BroadPhase broadPhase)
{
// Destroy proxies in the broad-phase.
for (int i = 0; i < ProxyCount; ++i)
{
FixtureProxy proxy = Proxies[i];
broadPhase.DestroyProxy(proxy.ProxyId);
proxy.ProxyId = BroadPhase.NULL_PROXY;
}
ProxyCount = 0;
}
// These support body activation/deactivation.
public void CreateProxies(BroadPhase broadPhase, Transform xf)
{
Debug.Assert(ProxyCount == 0);
// Create proxies in the broad-phase.
ProxyCount = Shape.ChildCount;
for (int i = 0; i < ProxyCount; ++i)
{
FixtureProxy proxy = Proxies[i];
Shape.ComputeAABB(proxy.AABB, xf, i);
proxy.ProxyId = broadPhase.CreateProxy(proxy.AABB, proxy);
proxy.Fixture = this;
proxy.ChildIndex = i;
}
}
/// <summary>
/// Internal method
/// </summary>
/// <param name="broadPhase"></param>
/// <param name="xf1"></param>
/// <param name="xf2"></param>
protected internal virtual void synchronize(BroadPhase broadPhase, Transform transform1, Transform transform2)
{
if (m_proxyCount == 0)
{
return;
}
for (int i = 0; i < m_proxyCount; ++i)
{
FixtureProxy proxy = m_proxies[i];
// Compute an AABB that covers the swept shape (may miss some rotation effect).
AABB aabb1 = pool1;
AABB aab = pool2;
m_shape.computeAABB(aabb1, transform1, proxy.childIndex);
m_shape.computeAABB(aab, transform2, proxy.childIndex);
proxy.aabb.lowerBound.x = aabb1.lowerBound.x < aab.lowerBound.x ? aabb1.lowerBound.x : aab.lowerBound.x;
proxy.aabb.lowerBound.y = aabb1.lowerBound.y < aab.lowerBound.y ? aabb1.lowerBound.y : aab.lowerBound.y;
proxy.aabb.upperBound.x = aabb1.upperBound.x > aab.upperBound.x ? aabb1.upperBound.x : aab.upperBound.x;
proxy.aabb.upperBound.y = aabb1.upperBound.y > aab.upperBound.y ? aabb1.upperBound.y : aab.upperBound.y;
displacement.x = transform2.p.x - transform1.p.x;
displacement.y = transform2.p.y - transform1.p.y;
broadPhase.moveProxy(proxy.proxyId, proxy.aabb, displacement);
}
}
/// <summary>
/// Internal method
/// </summary>
/// <param name="broadPhase"></param>
public virtual void destroyProxies(BroadPhase broadPhase)
{
// Destroy proxies in the broad-phase.
for (int i = 0; i < m_proxyCount; ++i)
{
FixtureProxy proxy = m_proxies[i];
broadPhase.destroyProxy(proxy.proxyId);
proxy.proxyId = BroadPhase.NULL_PROXY;
}
m_proxyCount = 0;
}
// These support body activation/deactivation.
public virtual void createProxies(BroadPhase broadPhase, Transform xf)
{
Debug.Assert(m_proxyCount == 0);
// Create proxies in the broad-phase.
m_proxyCount = m_shape.ChildCount;
for (int i = 0; i < m_proxyCount; ++i)
{
FixtureProxy proxy = m_proxies[i];
m_shape.computeAABB(proxy.aabb, xf, i);
proxy.proxyId = broadPhase.createProxy(proxy.aabb, proxy);
proxy.fixture = this;
proxy.childIndex = i;
}
}
