/// <summary>
/// Checks if two objects are equal.
/// </summary>
/// <param name="obj">The object to check against.</param>
/// <returns>Returns true if they are equal, otherwise false.</returns>
public override bool Equals(object obj)
{
OverlapPair other = (OverlapPair)obj;
return(other.Entity1.Equals(Entity1) && other.Entity2.Equals(Entity2) ||
other.Entity1.Equals(Entity2) && other.Entity2.Equals(Entity1));
}
private void DirtySortAxis(List <SweepPoint> axis)
{
axis.Sort(QuickSort);
activeList.Clear();
for (int i = 0, length = axis.Count; i < length; i++)
{
SweepPoint keyelement = axis[i];
if (keyelement.Begin)
{
foreach (IBroadphaseEntity body in activeList)
{
if (CheckBoundingBoxes(body, keyelement.Body))
{
//fullOverlaps.Add(new OverlapPair(body, keyelement.Body));
OverlapPair pair = OverlapPair.Pool.GetNew();
pair.Entity1 = body;
pair.Entity2 = keyelement.Body;
fullOverlaps.Add(pair);
}
}
activeList.Add(keyelement.Body);
}
else
{
activeList.Remove(keyelement.Body);
}
}
}
/// <summary>
/// Tells the collisionsystem to check all bodies for collisions. Hook into the
/// <see cref="CollisionSystem.PassedBroadphase"/>
/// and <see cref="CollisionSystem.CollisionDetected"/> events to get the results.
/// </summary>
public override void Detect()
{
if (addCounter > AddedObjectsBruteForceIsUsed)
{
fullOverlaps.Clear();
DirtySortAxis(axis1);
DirtySortAxis(axis2);
DirtySortAxis(axis3);
}
else
{
sortCallback(axis1);
sortCallback(axis2);
sortCallback(axis3);
}
addCounter = 0;
for (int index = 0, length = fullOverlaps.Count; index < length; index++)
{
OverlapPair pair = fullOverlaps[index];
if (this.CheckBothStaticNonKinematic(pair.Entity1, pair.Entity2))
{
continue;
}
if (base.RaisePassedBroadphase(pair.Entity1, pair.Entity2))
{
Detect(pair.Entity1, pair.Entity2);
}
}
}
private void SortAxis(List <SweepPoint> axis)
{
for (int j = 1; j < axis.Count; j++)
{
SweepPoint keyelement = axis[j];
FP key = keyelement.Value;
int i = j - 1;
while (i >= 0 && axis[i].Value > key)
{
SweepPoint swapper = axis[i];
if (keyelement.Begin && !swapper.Begin)
{
if (CheckBoundingBoxes(swapper.Body, keyelement.Body))
{
lock (fullOverlaps)
{
//fullOverlaps.Add(new OverlapPair(swapper.Body, keyelement.Body));
OverlapPair pair = OverlapPair.Pool.GetNew();
pair.Entity1 = swapper.Body;
pair.Entity2 = keyelement.Body;
fullOverlaps.Add(pair);
}
}
}
if (!keyelement.Begin && swapper.Begin)
{
lock (fullOverlaps)
{
//fullOverlaps.Remove(new OverlapPair(swapper.Body, keyelement.Body));
OverlapPair pair = OverlapPair.Pool.GetNew();
pair.Entity1 = swapper.Body;
pair.Entity2 = keyelement.Body;
fullOverlaps.Remove(pair);
}
}
axis[i + 1] = swapper;
i = i - 1;
}
axis[i + 1] = keyelement;
}
}
public override bool RemoveEntity(IBroadphaseEntity body)
{
int count;
count = 0;
for (int i = 0, length = axis1.Count; i < length; i++)
{
if (axis1[i].Body == body)
{
count++;
axis1.RemoveAt(i);
if (count == 2)
{
break;
}
i--;
}
}
count = 0;
for (int i = 0, length = axis2.Count; i < length; i++)
{
if (axis2[i].Body == body)
{
count++;
axis2.RemoveAt(i);
if (count == 2)
{
break;
}
i--;
}
}
count = 0;
for (int i = 0, length = axis3.Count; i < length; i++)
{
if (axis3[i].Body == body)
{
count++;
axis3.RemoveAt(i);
if (count == 2)
{
break;
}
i--;
}
}
foreach (var pair in fullOverlaps)
{
if (pair.Entity1 == body || pair.Entity2 == body)
{
deprecated.Push(pair);
}
}
while (deprecated.Count > 0)
{
OverlapPair pair = deprecated.Pop();
fullOverlaps.Remove(pair);
OverlapPair.Pool.GiveBack(pair);
}
bodyList.Remove(body);
return(true);
}
public override bool RemoveEntity(IBroadphaseEntity body)
{
int count;
count = 0;
for (int i = 0, length = axis1.Count; i < length; i++)
{
if (axis1[i].Body == body)
{
count++;
axis1.RemoveAt(i);
if (count == 2)
{
break;
}
i--;
}
}
count = 0;
for (int i = 0, length = axis2.Count; i < length; i++)
{
if (axis2[i].Body == body)
{
count++;
axis2.RemoveAt(i);
if (count == 2)
{
break;
}
i--;
}
}
count = 0;
for (int i = 0, length = axis3.Count; i < length; i++)
{
if (axis3[i].Body == body)
{
count++;
axis3.RemoveAt(i);
if (count == 2)
{
break;
}
i--;
}
}
for (int index = 0, length = fullOverlaps.Count; index < length; index++)
{
OverlapPair pair = fullOverlaps[index];
if (pair.Entity1 == body || pair.Entity2 == body)
{
deprecated.Push(pair);
}
}
fullOverlaps.RemoveAll(deprecated);
bodyList.Remove(body);
return(true);
}