cbsplevel.h

一个DXD制作的读取QUAKE的BSP结构的Demo可以参考

/*
   Class Name:

      CBspLevel.

   Created by:

      Allen Sherrod (Programming Ace of www.UltimateGameProgramming.com).

   Description:

      This class represents a Quake3 3D map that can be rendered in OpenGL
      or in Direct3D.
*/


#ifndef _CBSP_LEVEL_H_
#define _CBSP_LEVEL_H_


struct stTexCoord2
{
   float tu, tv;
};


struct stPoint3D
{
   float x, y, z;
};


enum enQ3LumpOffsets
{
   iEnitiesOffset = 0,
   iTextureOffset,
   iPlanesOffset,
   iNodesOffset,
   iLeafOffset,
   iLeafFacesOffset,
   iLeafBrushesOffset,
   iModelsOffset,
   iBrushesOffset,
   iBrushesSidesOffset,
   iVerticesOffset,
   iMeshVerticesOffset,
   iShaderFilesOffset,
   iFacesOffset,
   iLightMapsOffset,
   iLightVolumeOffset,
   iVisibleDataOffset,
   iMaxLumpsOffset
};


struct stQ3Header
{
   char bspID[4];
   int version;
};


struct stQ3FileLump
{
   int offset;
   int length;
};


struct stQ3Texture
{
   char file[64];
   int flags;
   int contents;
};


struct stQ3Face
{
   int texID;
   int effect;
   int type;
   int startVertexIndex;
   int totalVertices;
   int meshVertexIndex;
   int totalMeshVertices;
   int lightmapID;
   int lightMapCorner[2];
   int lightMapSize[2];
   stPoint3D lightMapPos;
   stPoint3D lightMapVectors[2];
   stPoint3D normal;
   int size[2];
};


struct stQ3Vertex
{
   stPoint3D vertex;
   stTexCoord2 texCoord;
   stTexCoord2 lightmapCoord;
   stPoint3D normal;
   unsigned char color[4];
};


struct stQ3LightMap
{
   unsigned char lightMap[128][128][3];
};


class CBspLevel
{
   public:
      CBspLevel() : m_totalTextures(0), m_totalVertices(0),
                    m_totalLightMaps(0), m_totalFaces(0), m_faces(0),
                    m_vertices(0), m_textures(0), m_lightMaps(0) {}
      ~CBspLevel()
      {
         Shutdown();
      }

      bool LoadLevel(char *filename);
      void SwapAxis();
      void Shutdown();

      int m_totalTextures;
      int m_totalLightMaps;
      int m_totalVertices;
      int m_totalFaces;

      stQ3Face *m_faces;
      stQ3Vertex *m_vertices;
      stQ3Texture *m_textures;
      stQ3LightMap *m_lightMaps;
};

#endif


// Copyright December 2004
// All Rights Reserved!
// Allen Sherrod
// [e-mail]
// www.UltimateGameProgramming.com