/// <summary>Gets all objects within a specified radius.</summary>
/// <typeparam name="T">the minimum type of the objects to retrieve</typeparam>
/// <param name="sphere">the area to search</param>
/// <param name="entities">the list to append retrieved objects to</param>
internal void GetEntitiesInArea <T>(ref BoundingSphere sphere, List <T> entities, Func <T, bool> filter,
uint phase, ref int limitCounter) where T : WorldObject
{
if (IsLeaf)
{
if (!HasObjects)
{
return;
}
foreach (WorldObject worldObject in m_objects.Values)
{
Vector3 position = worldObject.Position;
if (sphere.Contains(ref position) && worldObject.IsInPhase(phase) && worldObject is T)
{
T obj = worldObject as T;
if (filter(obj))
{
entities.Add(obj);
if (--limitCounter == 0)
{
break;
}
}
}
}
}
else
{
for (int index1 = 0; index1 < 2; ++index1)
{
for (int index2 = 0; index2 < 2; ++index2)
{
ZoneSpacePartitionNode child = m_children[index1, index2];
if (child.Bounds.Intersects(ref sphere).HasAnyFlag(IntersectionType.Touches))
{
child.GetEntitiesInArea(ref sphere, entities, filter, phase, ref limitCounter);
}
}
}
}
}
/// <summary>Gets all objects within a specified radius.</summary>
/// <param name="box">the area to search</param>
/// <param name="entities">the list to append retrieved objects to</param>
/// <param name="filter">the type (in respect to the WoW client) that the object must be</param>
internal void GetEntitiesInArea(ref BoundingBox box, List <WorldObject> entities, ObjectTypes filter, uint phase,
ref int limitCounter)
{
if (IsLeaf)
{
if (!HasObjects)
{
return;
}
foreach (WorldObject worldObject in m_objects.Values)
{
Vector3 position = worldObject.Position;
if (box.Contains(ref position) && worldObject.IsInPhase(phase) &&
worldObject.Type.HasAnyFlag(filter))
{
entities.Add(worldObject);
if (--limitCounter == 0)
{
break;
}
}
}
}
else
{
for (int index1 = 0; index1 < 2; ++index1)
{
for (int index2 = 0; index2 < 2; ++index2)
{
ZoneSpacePartitionNode child = m_children[index1, index2];
if (child.Bounds.Intersects(ref box).HasAnyFlag(IntersectionType.Touches))
{
child.GetEntitiesInArea(ref box, entities, filter, phase, ref limitCounter);
}
}
}
}
}