public static BSPTree ReadBSPTree(BinaryReader reader)
{
var rootId = reader.ReadInt16();
BSPNode[] nodes;
var numNodes = reader.ReadUInt16();
if (numNodes > 0)
{
nodes = new BSPNode[numNodes];
for (var i = 0; i < numNodes; i++)
{
nodes[i] = ReadBSPNode(reader);
}
}
else
{
nodes = null;
}
return new BSPTree(rootId, nodes);
}
public static BSPNode ReadBSPNode(BinaryReader reader)
{
var node = new BSPNode
{
flags = ((BSPNodeFlags)reader.ReadByte()),
negChild = reader.ReadInt16(),
posChild = reader.ReadInt16(),
planeDist = reader.ReadPackedFloat()
};
var numIndices = reader.ReadUInt16();
if (numIndices > 0)
{
var indices = new Index3[numIndices];
for (var i = 0; i < numIndices; i++)
{
indices[i] = reader.ReadIndex3();
}
node.TriIndices = indices;
}
else
{
node.TriIndices = null;
}
return node;
}
public BSPTree(short rootId, BSPNode[] nodes)
{
this.rootId = rootId;
this.nodes = nodes;
}