/// <summary>
/// Default constructor - used by BspResourceManager (do not call directly).
/// </summary>
/// <param name="name"></param>
public BspLevel(string name)
{
this.name = name;
this.objectToNodeMap = new Bsp.Collections.Map();
}
/// <summary>
/// Default constructor - used by BspResourceManager (do not call directly).
/// </summary>
/// <param name="name"></param>
public BspLevel(string name)
{
this.name = name;
this.objectToNodeMap = new Bsp.Collections.Map();
}
public override void Execute(IIntersectionSceneQueryListener listener)
{
//Go through each leaf node in BspLevel and check movables against each other and world
//Issue: some movable-movable intersections could be reported twice if 2 movables
//overlap 2 leaves?
BspLevel lvl = ((BspSceneManager) this.creator).Level;
int leafPoint = lvl.LeafStart;
int numLeaves = lvl.NumLeaves;
Bsp.Collections.Map objIntersections = new Bsp.Collections.Map();
PlaneBoundedVolume boundedVolume = new PlaneBoundedVolume(PlaneSide.Positive);
while ((numLeaves--) != 0)
{
BspNode leaf = lvl.Nodes[leafPoint];
MovableObjectCollection objects = leaf.Objects;
int numObjects = objects.Count;
for(int a = 0; a < numObjects; a++)
{
MovableObject aObj = objects[a];
// Skip this object if collision not enabled
if((aObj.QueryFlags & queryMask) == 0)
continue;
if(a < (numObjects - 1))
{
// Check object against others in this node
int b = a;
for (++b; b < numObjects; ++b)
{
MovableObject bObj = objects[b];
// Apply mask to b (both must pass)
if ((bObj.QueryFlags & queryMask) != 0)
{
AxisAlignedBox box1 = aObj.GetWorldBoundingBox();
AxisAlignedBox box2 = bObj.GetWorldBoundingBox();
if (box1.Intersects(box2))
{
//Check if this pair is already reported
bool alreadyReported = false;
IList interObjList = objIntersections.FindBucket(aObj);
if (interObjList != null)
if (interObjList.Contains(bObj))
alreadyReported = true;
if (!alreadyReported)
{
objIntersections.Insert(aObj,bObj);
listener.OnQueryResult(aObj,bObj);
}
}
}
}
}
// Check object against brushes
/*----This is for bounding sphere-----
float radius = aObj.BoundingRadius;
//-------------------------------------------*/
for (int brushPoint=0; brushPoint < leaf.SolidBrushes.Length; brushPoint++)
{
BspBrush brush = leaf.SolidBrushes[brushPoint];
if (brush == null) continue;
bool brushIntersect = true; // Assume intersecting for now
/*----This is for bounding sphere-----
IEnumerator planes = brush.Planes.GetEnumerator();
while (planes.MoveNext())
{
float dist = ((Plane)planes.Current).GetDistance(pos);
if (dist > radius)
{
// Definitely excluded
brushIntersect = false;
break;
}
}
//-------------------------------------------*/
boundedVolume.planes = brush.Planes;
//Test object as bounding box
if (!boundedVolume.Intersects(aObj.GetWorldBoundingBox()))
brushIntersect = false;
if (brushIntersect)
{
//Check if this pair is already reported
bool alreadyReported = false;
IList interObjList = objIntersections.FindBucket(aObj);
if (interObjList != null)
if (interObjList.Contains(brush))
alreadyReported = true;
if (!alreadyReported)
{
objIntersections.Insert(aObj,brush);
// report this brush as it's WorldFragment
brush.Fragment.FragmentType = WorldFragmentType.PlaneBoundedRegion;
listener.OnQueryResult(aObj,brush.Fragment);
}
}
}
}
++leafPoint;
}
}