internal BSPTree(short rootId, BSPNode[] nodes)
{
this.rootId = rootId;
this.nodes = nodes;
}
private static BSPNode ReadBSPNode(BinaryReader br)
{
var node = new BSPNode
{
flags = (BSPNodeFlags)br.ReadByte(),
negChild = br.ReadInt16(),
posChild = br.ReadInt16(),
planeDist = br.ReadSingle()
};
var numIndices = br.ReadInt32();
if (numIndices > 0)
{
var indices = new Index3[numIndices];
for (var i = 0; i < numIndices; i++)
{
indices[i] = br.ReadIndex3();
}
node.TriIndices = indices;
}
else
{
node.TriIndices = null;
}
return node;
}
private void DumpBranchContents(TextWriter file, BSPNode startAt, Vector3[] vectors)
{
// Write the vertices referenced by the first
var posVertList = new List<Vector3>();
GetBranchContents(startAt.posChild, vectors, posVertList);
file.WriteLine("Positive Polys: {0}", posVertList.Count);
file.WriteLine("_______________");
file.Write(file.NewLine);
var min = new Vector3(float.MaxValue);
var max = new Vector3(float.MinValue);
foreach (var vert in posVertList)
{
min = Vector3.Min(min, vert);
max = Vector3.Max(max, vert);
}
file.WriteLine("MinVals: {0}", min);
file.WriteLine("MaxVals: {0}", max);
file.WriteLine(file.NewLine);
//Write the vertices referenced by the last
var negVertList = new List<Vector3>();
GetBranchContents(startAt.negChild, vectors, negVertList);
file.WriteLine("Negative Polys: {0}", negVertList.Count);
file.WriteLine("_______________");
file.Write(file.NewLine);
min = new Vector3(float.MaxValue);
max = new Vector3(float.MinValue);
foreach (var vert in negVertList)
{
min = Vector3.Min(min, vert);
max = Vector3.Max(max, vert);
}
file.WriteLine("MinVals: {0}", min);
file.WriteLine("MaxVals: {0}", max);
file.WriteLine(file.NewLine);
}
private static BSPTree ReadBSPTree(BinaryReader br)
{
var rootId = br.ReadInt16();
BSPNode[] nodes;
var numNodes = br.ReadInt32();
if (numNodes > 0)
{
nodes = new BSPNode[numNodes];
for (var i = 0; i < numNodes; i++)
{
nodes[i] = ReadBSPNode(br);
}
}
else
{
nodes = null;
}
return new BSPTree(rootId, nodes);
}