/// <summary>
/// Read all lump headers
/// </summary>
private static bsp_header_t ReadHeader(BinaryStreamReader src)
{
bsp_header_lump_t lump;
bsp_header_t header;
// Read the magic number and the version
header = new bsp_header_t();
header.tag = src.ReadString(0, 4);
header.version = src.ReadInt32(); //src.readULong();
header.lumps = new List <bsp_header_lump_t>();
header.company = "GoldSrc"; // GoldSrc doesnt have a magic number
if (header.tag.StartsWith("I"))
{
header.company = "iD Software";
}
else if (header.tag.StartsWith("V"))
{
header.company = "Valve Software";
}
// Read the lump headers
for (int i = 0; i < 17; ++i)
{
lump = new bsp_header_lump_t();
//lump.offset = (ulong)src.ReadInt32();
//lump.length = (ulong)src.ReadInt32();
//lump.offset = src.ReadUInt64();
//lump.length = src.ReadUInt64();
//lump.offset = src.ReadUInt64();
//lump.length = src.ReadUInt64();
lump.offset = src.ReadUInt32();
lump.length = src.ReadUInt32();
header.lumps.Add(lump);
}
return(header);
}
/// <summary>
/// Parses the BSP file
/// </summary>
public static void Parse(BinaryStreamReader src, int tesselationLevel, OnBspIncompatible onIncompatible)
{
bsp_header_t header = ReadHeader(src);
// Check for appropriate format
if (header.tag != "IBSP" || header.version != 46)
{
onIncompatible(header);
return;
}
// info on different versions: https://github.com/zturtleman/bsp-sekai
/*---- LUMP INDEX ----
* Index Lump Name Description
* 0 Entities Game-related object descriptions.
* 1 Textures Surface descriptions (shaders).
* 2 Planes Planes used by map geometry.
* 3 Nodes BSP tree nodes.
* 4 Leafs BSP tree leaves.
* 5 Leaffaces Lists of face indices, one list per leaf.
* 6 Leafbrushes Lists of brush indices, one list per leaf.
* 7 Models Descriptions of rigid world geometry in map.
* 8 Brushes Convex polyhedra used to describe solid space.
* 9 Brushsides Brush surfaces.
* 10 Vertexes Vertices used to describe faces.
* 11 Meshverts Lists of offsets, one list per mesh.
* 12 Effects List of special map effects.
* 13 Faces Surface geometry.
* 14 Lightmaps Packed lightmap data.
* 15 Lightvols Local illumination data.
* 16 Visdata Cluster-cluster visibility data.*/
// Read map entities
bsp_parser_ibsp_v46.ReadEntities(header.lumps[0], src);
/* The entities lump stores game-related map information,
* including information about the map name, weapons, health, armor, triggers, spawn points,
* lights, and .md3 models to be placed in the map.
* The lump contains only one record, a string that describes all of the entities */
bsp_tree tree = new bsp_tree();
List <shader_p> shaders;
// Load visual map components
tree.surfaces = shaders = bsp_parser_ibsp_v46.ReadShaders(header.lumps[1], src);
List <lightmap_rect_t> lightmaps = bsp_parser_ibsp_v46.ReadLightmaps(header.lumps[14], src);
List <Vertex> verts = bsp_parser_ibsp_v46.ReadVerts(header.lumps[10], src);
List <int> meshVerts = bsp_parser_ibsp_v46.ReadMeshVerts(header.lumps[11], src);
List <Face> faces = bsp_parser_ibsp_v46.ReadFaces(header.lumps[13], src);
// COMPILE MAP
BspCompiler.CompileMap(verts, faces, meshVerts, lightmaps, shaders, tesselationLevel);
// postMessage2({
// "type": 'status',
//"message": 'Geometry compiled, parsing collision tree...'
// },null);
// Load bsp components
tree.planes = bsp_parser_ibsp_v46.ReadPlanes(header.lumps[2], src);
tree.nodes = bsp_parser_ibsp_v46.ReadNodes(header.lumps[3], src);
tree.leaves = bsp_parser_ibsp_v46.ReadLeaves(header.lumps[4], src);
tree.leafFaces = bsp_parser_ibsp_v46.ReadLeafFaces(header.lumps[5], src);
tree.leafBrushes = bsp_parser_ibsp_v46.ReadLeafBrushes(header.lumps[6], src);
tree.brushes = bsp_parser_ibsp_v46.ReadBrushes(header.lumps[8], src);
tree.brushSides = bsp_parser_ibsp_v46.ReadBrushSides(header.lumps[9], src);
VisData visData = bsp_parser_ibsp_v46.ReadVisData(header.lumps[16], src);
tree.visBuffer = visData.buffer;
tree.visSize = visData.size;
BspVisibilityChecking.visBuffer = visData.buffer;
BspVisibilityChecking.visSize = visData.size;
//tree.visData = visData;
q3bsp.onMessage(new MessageParams()
{
type = "bsp",
bsp = tree
});
}