Irrlicht游戏引擎（V0.1）源码学习系列之一

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首先创建DLL工程，然后编辑文件：

#include "Irrlicht.h"#include <Windows.h>#ifdef _DEBUG#include <crtdbg.h>#endif#pragma comment(exestr, "Irrlicht Engine")BOOL APIENTRY DllMain( HANDLE hModule,DWORD ul_reason_for_call,LPVOID lpReserved){switch( ul_reason_for_call ){case DLL_PROCESS_ATTACH:#ifdef _DEBUG_CrtSetDbgFlag(_CRTDBG_LEAK_CHECK_DF | _CRTDBG_ALLOC_MEM_DF);#endifbreak;case DLL_THREAD_ATTACH:case DLL_THREAD_DETACH:case DLL_PROCESS_DETACH:break;}return true;}

再编辑文件：

#ifndef _IRRLICHT_H_INCLUDE_#define _IRRLICHT_H_INCLUDE_#include "aabbox3d.h"#endif

再编辑文件：

#ifndef _IRR_AABBOX_3D_H_INCLUDE_#define _IRR_AABBOX_3D_H_INCLUDE_#include "irrTypes.h"#include "plane3dex.h"#endif

再编辑文件：

#ifndef _IRR_TYPES_H_INCLUDE_#define _IRR_TYPES_H_INCLUDE_namespace irr{typedef unsigned char u8;typedef signed char s8;typedef char c8;typedef unsigned short u16;typedef signed short s16;typedef unsigned int u32;typedef signed int s32;<pre name="code" class="cpp">#ifndef _IRR_PLANE_3D_H_INCLUDE#define _IRR_PLANE_3D_H_INCLUDE#include "irrmath.h"#include "vector3d.h"namespace irr{namespace core{enum EInterSectionRelation3D{ISREL3D_FRONT = 0,ISREL3D_BACK,ISREL3D_PLANAR,ISREL3D_SPANNING,ISREL3D_CLIPPED};template<typename T>class plane3d{public://plane3d():MPoint(0,0,0),Normal(0,1,0){};//vector3d<T> MPoint;//vector3d<T> Normal;};}}#endif

再编辑文件：

#ifndef _IRR_PLANE_3D_EX_H_INCLUDE_#define _IRR_PLANE_3D_EX_H_INCLUDE_#include "irrTypes.h"#include "plane3d.h"#endif

再编辑文件：

#ifndef _IRR_PLANE_3D_H_INCLUDE#define _IRR_PLANE_3D_H_INCLUDE#include "irrmath.h"#include "vector3d.h"namespace irr{namespace core{enum EInterSectionRelation3D{ISREL3D_FRONT = 0,ISREL3D_BACK,ISREL3D_PLANAR,ISREL3D_SPANNING,ISREL3D_CLIPPED};template<typename T>class plane3d{public://plane3d():MPoint(0,0,0),Normal(0,1,0){};//vector3d<T> MPoint;//vector3d<T> Normal;};}}#endif

再编辑文件：

/**************************** * 2015年5月24 星期日 零点 *（周六一天写了仿真的代码，晚上闲余来敲一敲IRRLICHT引擎的代码，不知不觉已经到了周日凌晨了。） *（要学习Irrlicht的编码方式和各种编程方法。以提高自己用C++编码以及思考的能力。）  ***************************/#ifndef _IRR_POINT_3D_H_INCLUDE_#define _IRR_POINT_3D_H_INCLUDE_#include <math.h>#include "irrTypes.h"namespace irr{namespace core{template<typename T>class vector3d{public:vector3d():X(0), Y(0), Z(0){};vector3d( T nx, T ny, T nz) : X(nx), Y(ny), Z(nz){};vector3d(const vector3d<T>& other ) :X(other.X), Y(other.Y), Z(other.Z){};// 操作符vector3d<T>& operator=(const vector3d<T>& other){ X = other.X; Y = other.Y; Z = other.Z; return *this; }vector3d<T>& operator+(const vector3d<T>& other) const { return vector3d<T>(X + other.X, Y + other.Y, Z + other.Z); }// 成员变量T X, Y, Z;};}}#endif

未完待续：

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