Terrain类

#include <string> #include <vector> class Terrain { public: Terrain(IDirect3DDevice9 *device, std::string heightmapFileName, int numVertsPerRow, int numVertsPerCol, int cellSpacing, float heightScale); ~Terrain(); int getHeightmapEntry(int row, int col); void setHeightmapEntry(int row, int col, int value); float getHeight(float x, float z); bool loadTexture(std::string fileName); bool genTexture(D3DXVECTOR3* directionToLight); bool draw(D3DXMATRIX* world, bool drawTris); private: IDirect3DDevice9* _device; IDirect3DTexture9* _tex; IDirect3DVertexBuffer9* _vb; IDirect3DIndexBuffer9* _ib; int _numVertsPerRow; int _numVertsPerCol; int cellSpacing; int _numCellsPerRow; int _numCellsPerCol; int _width; int _depth; int _numVertices; int _numTriangles; float _heightScale; std::vector<int> _heightmap; //helper methods bool readRawFile(std::string fileName); bool computeVertices(); bool computeIndices(); bool lightTerrain(D3DXVECTOR3* directionToLight); float computeShade(int cellRow, int cellCol, D3DXVECTOR3* directionToLight); struct TerrainVertex { TerrainVertex(){} TerrainVertex(float x, float y, float z, float u, float v) { _x = x; _y = y; _z = z; _u = u; _v = v; } float _x, _y, _z; float _u, _v; static const DWORD FVF; }; };