private void CreateLeaves(Quake3Level q3lvl)
{
for (int i = 0; i < q3lvl.NumLeaves; ++i)
{
BspNode node = nodes[i + this.LeafStart];
InternalBspLeaf q3leaf = q3lvl.Leaves[i];
node.IsLeaf = true;
node.Owner = this;
// Set bounding box
node.BoundingBox.Minimum = new Vector3(
q3leaf.bbox[0],
q3leaf.bbox[1],
q3leaf.bbox[2]
);
node.BoundingBox.Maximum = new Vector3(
q3leaf.bbox[3],
q3leaf.bbox[4],
q3leaf.bbox[5]
);
// Set faces
node.FaceGroupStart = q3leaf.faceStart;
node.NumFaceGroups = q3leaf.faceCount;
node.VisCluster = q3leaf.cluster;
// Load Brushes for this leaf
int realBrushIdx = 0, solidIdx = 0;
int brushCount = q3leaf.brushCount;
int brushIdx = q3leaf.brushStart;
node.SolidBrushes = new BspBrush[brushCount];
while (brushCount-- > 0)
{
realBrushIdx = q3lvl.LeafBrushes[brushIdx];
InternalBspBrush q3brush = q3lvl.Brushes[realBrushIdx];
// Only load solid ones, we don't care about any other types
// Shader determines this.
InternalBspShader brushShader = q3lvl.Shaders[q3brush.shaderIndex];
if ((brushShader.contentFlags & ContentFlags.Solid) == ContentFlags.Solid)
{
node.SolidBrushes[solidIdx] = brushes[realBrushIdx];
}
brushIdx++;
solidIdx++;
}
}
}
private void ReadBrushes(InternalBspLump lump, BinaryReader reader)
{
reader.BaseStream.Seek(lump.offset, SeekOrigin.Begin);
brushes = new InternalBspBrush[lump.size / Marshal.SizeOf(typeof(InternalBspBrush))];
for (int i = 0; i < brushes.Length; i++)
{
brushes[i] = new InternalBspBrush();
brushes[i].firstSide = reader.ReadInt32();
brushes[i].numSides = reader.ReadInt32();
brushes[i].shaderIndex = reader.ReadInt32();
}
}
private void CreateBrushes(Quake3Level q3lvl)
{
// Reserve enough memory for all brushes, solid or not (need to maintain indexes)
brushes = new BspBrush[q3lvl.NumBrushes];
for (int i = 0; i < q3lvl.NumBrushes; i++)
{
InternalBspBrush q3brush = q3lvl.Brushes[i];
// Create a new OGRE brush
BspBrush brush = new BspBrush();
int numBrushSides = q3brush.numSides;
int brushSideIdx = q3brush.firstSide;
// Iterate over the sides and create plane for each
while (numBrushSides-- > 0)
{
InternalBspPlane side = q3lvl.Planes[q3lvl.BrushSides[brushSideIdx].planeNum];
// Notice how we normally invert Q3A plane distances, but here we do not
// Because we want plane normals pointing out of solid brushes, not in.
Plane brushSide = new Plane(
new Vector3(
q3lvl.Planes[q3lvl.BrushSides[brushSideIdx].planeNum].normal[0],
q3lvl.Planes[q3lvl.BrushSides[brushSideIdx].planeNum].normal[1],
q3lvl.Planes[q3lvl.BrushSides[brushSideIdx].planeNum].normal[2]
), q3lvl.Planes[q3lvl.BrushSides[brushSideIdx].planeNum].distance);
brush.Planes.Add(brushSide);
brushSideIdx++;
}
// Build world fragment
brush.Fragment.FragmentType = WorldFragmentType.PlaneBoundedRegion;
brush.Fragment.Planes = brush.Planes;
brushes[i] = brush;
}
}
private void ReadBrushes( InternalBspLump lump, BinaryReader reader )
{
reader.BaseStream.Seek( lump.offset, SeekOrigin.Begin );
for ( int i = 0; i < brushes.Length; i++ )
{
brushes[ i ] = new InternalBspBrush();
brushes[ i ].firstSide = reader.ReadInt32();
brushes[ i ].numSides = reader.ReadInt32();
brushes[ i ].shaderIndex = reader.ReadInt32();
}
}