|
public GetZoneData ( |
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| zone | ||
| return | ||
public void RemoveNode( PCZSceneNode node )
{
//PCZSceneNode check;
//int i;
//int Index;
//Index = NodeList.Count - 1;
//for ( i = Index; i >= 0; i-- )
//{
// check = ( PCZSceneNode ) NodeList.Values[ i ];
// if ( check == node )
// {
// ( ( OctreeZoneData ) node.GetZoneData( zone ) ).Octant = null;
// NodeList.RemoveAt( i );
// UnRef();
// }
//}
( (OctreeZoneData)node.GetZoneData( this.zone ) ).Octant = null;
NodeList.Remove( node );
UnRef();
}
void AddNodeToOctree( PCZSceneNode n, Octree octant, int depth )
{
// Skip if octree has been destroyed (shutdown conditions)
if ( null == rootOctree )
return;
AxisAlignedBox bx = n.WorldAABB;
//if the octree is twice as big as the scene node,
//we will add it to a child.
if ( ( depth < maxDepth ) && octant.IsTwiceSize( bx ) )
{
int x = 0, y = 0, z = 0;
octant._getChildIndexes( bx, ref x, ref y, ref z );
if ( octant.Children[ x, y, z ] == null )
{
octant.Children[ x, y, z ] = new Octree( this, octant );
Vector3 octantMin = octant.Box.Minimum;
Vector3 octantMax = octant.Box.Maximum;
Vector3 min, max;
if ( x == 0 )
{
min.x = octantMin.x;
max.x = ( octantMin.x + octantMax.x ) / 2;
}
else
{
min.x = ( octantMin.x + octantMax.x ) / 2;
max.x = octantMax.x;
}
if ( y == 0 )
{
min.y = octantMin.y;
max.y = ( octantMin.y + octantMax.y ) / 2;
}
else
{
min.y = ( octantMin.y + octantMax.y ) / 2;
max.y = octantMax.y;
}
if ( z == 0 )
{
min.z = octantMin.z;
max.z = ( octantMin.z + octantMax.z ) / 2;
}
else
{
min.z = ( octantMin.z + octantMax.z ) / 2;
max.z = octantMax.z;
}
octant.Children[ x, y, z ].Box.SetExtents( min, max );
octant.Children[ x, y, z ].HalfSize = ( max - min ) / 2;
}
AddNodeToOctree( n, octant.Children[ x, y, z ], ++depth );
}
else
{
if ( ( (OctreeZoneData)n.GetZoneData( this ) ).Octant == octant )
return;
RemoveNodeFromOctree( n );
octant.AddNode( n );
}
}
public void AddNode( PCZSceneNode node )
{
this.nodeList[ node.Name ] = node;
( (OctreeZoneData)node.GetZoneData( this.zone ) ).Octant = this;
//update total counts.
Ref();
}
/** Only removes the node from the octree. It leaves the octree, even if it's empty.
*/
public void RemoveNodeFromOctree( PCZSceneNode n )
{
// Skip if octree has been destroyed (shutdown conditions)
if ( null == rootOctree )
return;
Octree oct = ( (OctreeZoneData)n.GetZoneData( this ) ).Octant;
if ( null != oct )
{
oct.RemoveNode( n );
}
( (OctreeZoneData)n.GetZoneData( this ) ).Octant = null;
}