ObjectLoader3ds.h

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#ifndef _C3DS_OBJECT_H_
#define _C3DS_OBJECT_H_

#include<stdio.h>
#include<vector>

struct stChunk {
  stChunk() : id(0), length(0), bytesRead(0) {}
  unsigned short id; // unsigned added
  size_t length;
  size_t bytesRead;
};

struct stVertex {
  stVertex() : x(0), y(0), z(0) {}
  float x, y, z;
};

struct stFace {
  stFace() : matId(0) { indices[0] = indices[1] = indices[2] = 0; }
  unsigned int indices[3];
  stVertex normal;
  int matId;
};

struct stFileFace {
  stFileFace() : vis(0) { indices[0] = indices[1] = indices[2] = 0; }
  unsigned short indices[3], vis;
};

struct stColor {
  stColor() : r(0), g(0), b(0) {}
  unsigned char r, g, b;
};

struct stTexCoord {
  stTexCoord() : tu(0), tv(0) {}
  float tu, tv;
};

struct stMaterial {
  stMaterial() { name[0] = 0; textureName[0] = 0; }
  char name[256];
  stColor colorDiffuse;
  stColor colorAmbient;
  stColor colorSpecular;
  char textureName[256];
};

struct stMesh {
  stMesh() : pFaces(0), pVertices(0), pTexCoords(0),
    totalFaces(0), totalVertices(0), totalTexCoords(0) {}

  char name[256];

  stFace *pFaces;
  stVertex *pVertices;
  stTexCoord *pTexCoords;

  unsigned int totalFaces;
  unsigned int totalVertices;
  unsigned int totalTexCoords;
};

class ObjectLoader3ds {
public:
  ObjectLoader3ds();
  ~ObjectLoader3ds();

  // load a file
  bool LoadModel(const char *fileName);

  // deals with reading chunk headers.
  void ReadSubChunk(FILE *fp, stChunk *pChunk);
  void MoveToNextChunk(FILE *fp, stChunk *pChunk);
  size_t GetNextString(FILE *fp, char *str);
  void ReadChunk(FILE *fp, stChunk *pChunk);

  // read different sections out of the file like vertex
  // positions, tex coords, faces, etc.
  void ReadMaterials(FILE *fp, stChunk *pChunk);
  void ReadDiffuse(FILE *fp, stChunk *pChunk);
  void ReadAmbient(FILE *fp, stChunk *pChunk);
  void ReadSpecular(FILE *fp, stChunk *pChunk);
  void ReadMeshMaterials(FILE *fp, stChunk *pChunk);
  void ReadFaces(FILE *fp, stChunk *pChunk);
  void ReadVertices(FILE *fp, stChunk *pChunk);
  void ReadTexCoords(FILE *fp, stChunk *pChunk);

  void shutdown();

  // List of mesh objects if there are more than 1,
  // list of materials, and counters for each.
  std::vector<stMesh> meshList;
  std::vector<stMaterial> materialList;
  int totalMeshes;
  int totalMaterials;
};

#endif