protected virtual bool ReadTriangleList(BinaryReader reader, ref TRLTriangleList triangleList)
{
triangleList.polygonCount = (UInt32)reader.ReadUInt16() / 3;
triangleList.groupID = reader.ReadUInt16(); // Used by MON_SetAccessories and INSTANCE_UnhideAllDrawGroups
triangleList.polygonStart = (UInt32)(reader.BaseStream.Position) + 0x10;
UInt16 xWord0 = reader.ReadUInt16();
UInt16 xWord1 = reader.ReadUInt16();
UInt32 xDWord0 = reader.ReadUInt32();
UInt32 xDWord1 = reader.ReadUInt32();
triangleList.material = new Material();
triangleList.material.visible = true; // ((xWord1 & 0xFF00) == 0);
triangleList.material.textureID = (UInt16)(xWord0 & 0x1FFF);
triangleList.material.colour = 0xFFFFFFFF;
if (triangleList.material.textureID > 0)
{
triangleList.material.textureUsed = true;
}
else
{
triangleList.material.textureUsed = false;
//xMaterial.colour = 0x00000000;
}
triangleList.next = reader.ReadUInt32();
if (triangleList.polygonCount == 0)
{
triangleList.next = 0;
}
return(triangleList.material.visible);
}
protected override void ReadPolygons(BinaryReader reader, CDC.Objects.ExportOptions options)
{
if (_materialStart == 0)
{
return;
}
List <TRLTriangleList> triangleListList = new List <TRLTriangleList>();
UInt32 materialPosition = _materialStart;
_groupCount = 0;
while (materialPosition != 0)
{
reader.BaseStream.Position = materialPosition;
TRLTriangleList triangleList = new TRLTriangleList();
bool isVisible = (ReadTriangleList(reader, ref triangleList) /*&& triangleList.m_usGroupID == 0*/);
if (isVisible)
{
triangleListList.Add(triangleList);
_polygonCount += triangleList.polygonCount;
if ((UInt32)triangleList.groupID > _groupCount)
{
_groupCount = triangleList.groupID;
}
}
_materialsList.Add(triangleList.material);
materialPosition = triangleList.next;
}
_materialCount = (UInt32)_materialsList.Count;
_groupCount++;
_trees = new Tree[_groupCount];
for (UInt32 t = 0; t < _groupCount; t++)
{
_trees[t] = new Tree();
_trees[t].mesh = new Mesh();
foreach (TRLTriangleList triangleList in triangleListList)
{
if (t == (UInt32)triangleList.groupID)
{
_trees[t].mesh.polygonCount += triangleList.polygonCount;
}
}
_trees[t].mesh.indexCount = _trees[t].mesh.polygonCount * 3;
_trees[t].mesh.polygons = new Polygon[_trees[t].mesh.polygonCount];
_trees[t].mesh.vertices = new Vertex[_trees[t].mesh.indexCount];
}
for (UInt32 t = 0; t < _groupCount; t++)
{
UInt32 tp = 0;
foreach (TRLTriangleList triangleList in triangleListList)
{
if (t != (UInt32)triangleList.groupID)
{
continue;
}
reader.BaseStream.Position = triangleList.polygonStart;
for (int pl = 0; pl < triangleList.polygonCount; pl++)
{
_trees[t].mesh.polygons[tp].v1 = _geometry.Vertices[reader.ReadUInt16()];
_trees[t].mesh.polygons[tp].v2 = _geometry.Vertices[reader.ReadUInt16()];
_trees[t].mesh.polygons[tp].v3 = _geometry.Vertices[reader.ReadUInt16()];
_trees[t].mesh.polygons[tp].material = triangleList.material;
tp++;
}
}
for (UInt16 poly = 0; poly < _trees[t].mesh.polygonCount; poly++)
{
_trees[t].mesh.vertices[(3 * poly) + 0] = _trees[t].mesh.polygons[poly].v1;
_trees[t].mesh.vertices[(3 * poly) + 1] = _trees[t].mesh.polygons[poly].v2;
_trees[t].mesh.vertices[(3 * poly) + 2] = _trees[t].mesh.polygons[poly].v3;
}
}
_polygons = new Polygon[_polygonCount];
UInt32 p = 0;
foreach (TRLTriangleList triangleList in triangleListList)
{
reader.BaseStream.Position = triangleList.polygonStart;
for (int pl = 0; pl < triangleList.polygonCount; pl++)
{
_polygons[p].v1 = _geometry.Vertices[reader.ReadUInt16()];
_polygons[p].v2 = _geometry.Vertices[reader.ReadUInt16()];
_polygons[p].v3 = _geometry.Vertices[reader.ReadUInt16()];
_polygons[p].material = triangleList.material;
p++;
}
}
}
