public McnkChunk_s parseMcnkChunk(MemoryStream ms, Terrain_s terrain)
{
long mcnk_off = ms.Position;
McnkChunk_s mcnk_chunk = new McnkChunk_s();
mcnk_chunk.Read(ms);
// set stream position to MCVT chunk
ms.Position = mcnk_off + mcnk_chunk.mcvtOff;
McvtChunk_s mcvt_chunk = new McvtChunk_s();
mcvt_chunk.Read(ms, "MCVT");
// read all height values
uint num_heights = mcvt_chunk.size / sizeof(float);
HeightMap_t height_map = terrain.heightMap;
height_map.Capacity = (int) num_heights;
for (int i = 0; i < num_heights; i++)
{
height_map.Add(ms.ReadFloat());
}
// set stream position to MCNR chunk
McnrChunk_s mcnr_chunk = new McnrChunk_s();
ms.Position = mcnk_off + mcnk_chunk.mcnrOff;
mcnr_chunk.Read(ms);
// read all normal values
//int num_normals = mcnr_chunk.size / sizeof( char ); // size is wrong
Normals_t normals = terrain.normals;
normals.Capacity = (int) num_heights;
byte normal;
for (int i = 0; i < num_heights; i++)
{
Vector3 v = new Vector3();
normal = (byte) ms.ReadByte();
v.X = normal * 0.00787401574803149606299212598425f;
normal = (byte)ms.ReadByte();
v.Z = normal * 0.00787401574803149606299212598425f;
normal = (byte)ms.ReadByte();
v.Y = normal * 0.00787401574803149606299212598425f;
normals.Add(v);
}
ms.Position = mcnk_off + 0x8 + mcnk_chunk.size;
return mcnk_chunk;
}
public bool Load(mpq.Wrapper mpq_h, string name)
{
byte[] buf = mpq_h.GetFile(name + ".adt");
if (buf == null)
return false;
MemoryStream ms = new MemoryStream(buf);
int chunk_size = 0;
chunk_size = (int) _mverChunk.Read(ms);
chunk_size = (int)_mhdrChunk.Read(ms);
if (_mhdrChunk.mh2oOff != 0)
{
chunk_size = (int)_mh2oChunk.Read(ms);
}
_adtTerrain.Capacity = 256;
for (int i = 0; i < 256; i++)
{
Terrain_s terrain = new Terrain_s();
McnkChunk_s mcnk_chunk = parseMcnkChunk(ms, terrain);
terrain.areaId = mcnk_chunk.areaId;
terrain.position = mcnk_chunk.position;
terrain.holes = mcnk_chunk.holes ;
// deal w/ water
if (i < _mh2oChunk.headers.Count)
{
Mh2oChunk_s.Header_s hdr = _mh2oChunk.headers[i];
terrain.GenerateTerrain();
if ( hdr.renderMap == 0 &&
hdr.numLayers > 0 &&
hdr.infos[0].type == 0x2 )
hdr.renderMap = 0xffffffffffffffff;
if (hdr.renderMap != 0)
{
for (int wy = 0; wy < 8; wy++)
{
for (int wx = 0; wx < 8; wx++)
{
int cell_idx = wy * 8 + wx; // water cell index
// Do we have water in this cell?
if ((hdr.renderMap & (1UL << cell_idx)) != 0)
{
int terr_idx = cell_idx; // terrain index
// A terrain cell is made up of 12 indices which describe
// 4 polygons that make up a cell in our map chunk.
for (int ii = 0; ii < 12; ii++)
{
terrain.indices[terr_idx * 12 + ii] = -1; // mark every index with uint max
}
}
}
}
}
Util.removeGeometry(ref terrain.indices, ref terrain.vertices, ref terrain.normals);
}
_adtTerrain.Add(terrain);
}
return true;
}
