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// Lod.h: interface for the CLod class. 
// 
////////////////////////////////////////////////////////////////////// 
 
#if !defined(AFX_LOD_H__8C91EFFD_346E_4F84_A1E4_F20F3431FFF0__INCLUDED_) 
#define AFX_LOD_H__8C91EFFD_346E_4F84_A1E4_F20F3431FFF0__INCLUDED_ 
 
#if _MSC_VER > 1000 
#pragma once 
#endif // _MSC_VER > 1000 
#define DISTANCE(v1, v2) sqrt((v1[0] - v2[0]) * (v1[0] - v2[0]) + \ 
                              (v1[2] - v2[2]) * (v1[2] - v2[2])) 
 
#define MAP 256 
#define QUAD_MAP (MAP + 1) 
#define IX_QT(x, z) (((x)%QUAD_MAP) + (((z)%QUAD_MAP) * QUAD_MAP)) 
#define EDGE_POINT 0 
#define NODE_POINT 1 
#define UNKNOWN    2 
//方向的宏定义 
#define NORTH   0 
#define WEST    1 
#define SOUTH   2 
#define EAST    3 
#define NW      4 
#define NE      5 
#define SW      6 
#define SE      7 
#define NORTH_L 8 
#define NORTH_R 9 
#define WEST_T  10 
#define WEST_B  11 
#define SOUTH_L 12 
#define SOUTH_R 13 
#define EAST_T  14 
#define EAST_B  15 
#define texScale 64.0  
 
#define TRUE 1 
#define FALSE 0 
#define WIDTH 4.0 
 
#define ZOOMSIZE 4 
 
#define COMP 128  
#define SHIFT 7  
 
#define FORWARD 1 
#define ROTATE 2 
#define LOOKUP 3 
 
typedef struct COLOUR  
{ 
	int r,g,b; 
} COLOUR; 
 
class CLod   
{ 
public: 
	CLod(); 
	virtual ~CLod(); 
 
	BOOL m_bFlag; 
 
	void reset_quad_tree(void); 
	void draw(int x, int z, int width, int direction); 
	void setup_quadtree(int x, int y, int width); 
	void draw_point(int x, int z, int width, int direction); 
	void triangle1(int x1, int z1, int x2, int z2, int x3, int z3) ; 
	void triangle2(int x1, int z1, int x2, int z2, int x3, int z3) ; 
	void setColor(int x, int z);  
	void setVertex(int x, int z);  
 
}; 
 
#endif // !defined(AFX_LOD_H__8C91EFFD_346E_4F84_A1E4_F20F3431FFF0__INCLUDED_)