public void UpdatePairs(b2ContactManager callback)
{
// Reset pair buffer
m_pairCount = 0;
// Perform tree queries for all moving proxies.
// Console.WriteLine("move_count={0}", m_moveCount);
for (int i = 0; i < m_moveCount; ++i)
{
m_queryProxyId = m_moveBuffer[i];
if (m_queryProxyId == e_nullProxy)
{
continue;
}
// We have to query the tree with the fat AABB so that
// we don't fail to create a pair that may touch later.
b2AABB fatAABB = m_tree.GetFatAABB(m_queryProxyId);
// Query tree, create pairs and add them pair buffer.
m_tree.Query(this, fatAABB);
}
// Reset move buffer
m_moveCount = 0;
// Sort the pair buffer to expose duplicates.
// Sort starting with the m_pairCount
Array.Sort(m_pairBuffer, 0, m_pairCount, this);
// if (m_pairCount > 0)
// Console.WriteLine("UpdatePairs " + m_pairCount);
// Send the pairs back to the client.
int i2 = 0;
while (i2 < m_pairCount)
{
int i1 = i2;
b2Pair primaryPair = m_pairBuffer[i2];
object userDataA = m_tree.GetUserData(primaryPair.proxyIdA);
object userDataB = m_tree.GetUserData(primaryPair.proxyIdB);
callback.AddPair(userDataA, userDataB);
++i2;
// Skip any duplicate pairs.
while (i2 < m_pairCount)
{
b2Pair pair = m_pairBuffer[i2];
if (pair.proxyIdA != primaryPair.proxyIdA || pair.proxyIdB != primaryPair.proxyIdB)
{
break;
}
++i2;
}
}
// Try to keep the tree balanced.
//m_tree.Rebalance(4);
}
protected override void Draw(Settings settings)
{
base.Draw(settings);
b2ContactManager cm = m_world.ContactManager;
int height = cm.BroadPhase.GetTreeHeight();
int leafCount = cm.BroadPhase.GetProxyCount();
int minimumNodeCount = 2 * leafCount - 1;
float minimumHeight = (float)Math.Ceiling((float)Math.Log(minimumNodeCount) / (float)Math.Log(2.0f));
m_debugDraw.DrawString(5, m_textLine, "dynamic tree height = {0}, min = {1}", height, minimumHeight);
m_textLine += 15;
m_debugDraw.DrawString(5, m_textLine, "create time = {0:000000.00} ms, fixture count = {1}",
m_createTime, m_fixtureCount);
m_textLine += 15;
}
internal static global::System.Runtime.InteropServices.HandleRef getCPtr(b2ContactManager obj)
{
return((obj == null) ? new global::System.Runtime.InteropServices.HandleRef(null, global::System.IntPtr.Zero) : obj.swigCPtr);
}
public b2ContactManager GetContactManager()
{
b2ContactManager ret = new b2ContactManager(Box2dPINVOKE.b2World_GetContactManager(swigCPtr), false);
return(ret);
}
