OpenGL物理碰撞效果

//========================================================================= /** * @file CollideDemo.cpp * * 项目描述： 碰撞检测演示 * 文件描述: 具体实例类 * 适用平台： Windows98/2000/NT/XP * * 作者： WWBOSS * 电子邮件: wwboss123@gmail.com * 创建日期： 2006-09-13 * 修改日期： 2006-10-10 * * 在这个类中您必须重载如下几个虚函数 * * virtual bool Init(); * 执行所有的初始化工作，如果成功函数返回true * * virtual void Uninit(); * 执行所有的卸载工作 * * virtual void Update(DWORD milliseconds); * 执行所有的更新操作，传入的参数为两次操作经过的时间，以毫秒为单位 * * virtual void Draw(); * 执行所有的绘制操作 */ //========================================================================= #include "CollideDemo.h" /**< 包含头文件 */ ///初始化摄像机参数 Vector3 dir(0,0,-10); /**< 方向 */ Vector3 pos(0,-50,1000); /**< 位置 */ float camera_rotation = 0; /**< 旋转速度 */ ///初始化球的属性 Vector3 veloc(0.5,-0.1,0.5); /**< 速度 */ Vector3 accel(0,-0.05,0); /**< 重力加速度 */ Vector3 ArrayVel[10]; /**< 保存各个球的速度 */ Vector3 ArrayPos[10]; /**< 保存各个球的位置 */ Vector3 OldPos[10]; /**< 保存上一次球的位置 */ int NrOfBalls; /**< 设置球的个数 */ double Time = 0.6; /**< 设置模拟的时间精度 */ /** 创建一个程序的实例 */ GLApplication * GLApplication::Create(const char * class_name) { CDemo * demo = new CDemo(class_name); return reinterpret_cast<GLApplication *>(demo); } /** 构造函数 */ CDemo::CDemo(const char * class_name) : GLApplication(class_name) { /// 初始化用户自定义的程序变量 m_Fps = 0; } /** 初始化变量 */ void CDemo::InitVars() { ///构造平面 pl1._Position = Vector3(0,-300,0); pl1._Normal = Vector3(0,1,0); pl2._Position = Vector3(300,0,0); pl2._Normal = Vector3(-1,0,0); pl3._Position = Vector3(-300,0,0); pl3._Normal = Vector3(1,0,0); pl4._Position = Vector3(0,0,300); pl4._Normal = Vector3(0,0,-1); pl5._Position = Vector3(0,0,-300); pl5._Normal = Vector3(0,0,1); ///构造圆柱体 cyl1._Position = Vector3(0,0,0); cyl1._Axis = Vector3(0,1,0); cyl1._Radius = 60 + 20; cyl2._Position = Vector3(200,-300,0); cyl2._Axis = Vector3(0,0,1); cyl2._Radius = 60 + 20; cyl3._Position = Vector3(-200,0,0); cyl3._Axis = Vector3(0,1,1); cyl3._Axis.unit(); cyl3._Radius = 30 + 20; ///构造二次几何体 cylinder_obj = gluNewQuadric(); gluQuadricTexture(cylinder_obj, GL_TRUE); ///设置球的初始属性,并初始化爆炸数组 NrOfBalls = 10; ArrayVel[0] = veloc; ArrayPos[0] = Vector3(199,180,10); ExplosionArray[0]._Alpha = 0; ExplosionArray[0]._Scale = 1; ArrayVel[1] = veloc; ArrayPos[1] = Vector3(0,150,100); ExplosionArray[1]._Alpha = 0; ExplosionArray[1]._Scale = 1; ArrayVel[2] = veloc; ArrayPos[2] = Vector3(-100,180,-100); ExplosionArray[2]._Alpha = 0; ExplosionArray[2]._Scale = 1; for (int i = 3; i < 10; i++) { ArrayVel[i] = veloc; ArrayPos[i] = Vector3(-500 + i*75, 300, -500 + i*50); ExplosionArray[i]._Alpha = 0; ExplosionArray[i]._Scale = 1; } for (int i = 10; i < 20; i++) { ExplosionArray[i]._Alpha = 0; ExplosionArray[i]._Scale = 1; } } /** 载入纹理 */ bool CDemo::LoadTexture() { glEnable(GL_TEXTURE_2D); /**< 启用纹理映射 */ char* file[] = {"data/marble.bmp","data/spark.bmp","data/boden.bmp","data/wand.bmp"}; /** 循环读入位图纹理 */ for(int i = 0; i < 4; i++) { if(!m_texture[i].Load(file[i])) /**< 载入位图文件 */ { MessageBox(NULL,"装载位图文件失败！","错误",MB_OK); /**< 如果载入失败则弹出对话框 */ return false; } } return true; } /** 初始化OpenGL */ bool CDemo::Init() { /** 用户自定义的初始化过程 */ glClearColor(0.0f, 0.0f, 0.0f, 0.5f); glClearDepth(1.0f); glDepthFunc(GL_LEQUAL); glEnable(GL_DEPTH_TEST); glShadeModel(GL_SMOOTH); glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST); ResizeDraw(true); /** 初始化输入系统 */ m_pInput = new CInputSystem(); m_pInput->Init(this->m_Window.GetHwnd(),(HINSTANCE)GetModuleHandle(NULL), true,IS_USEKEYBOARD|IS_USEMOUSE); /** 设置光源参数 */ GLfloat spec[] = { 1.0, 1.0 ,1.0 ,1.0 }; GLfloat posl[] = { 0, 400, 0, 1 }; GLfloat amb[] = { 0.2f, 0.2f, 0.2f ,1.0f }; GLfloat amb2[] = { 0.3f, 0.3f, 0.3f ,1.0f }; float df=100.0; glClearDepth(1.0f); glEnable(GL_DEPTH_TEST); glDepthFunc(GL_LEQUAL); glEnable(GL_DEPTH_TEST); glShadeModel(GL_SMOOTH); glEnable(GL_CULL_FACE); glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST); /** 设置材质属性 */ glMaterialfv(GL_FRONT,GL_SPECULAR,spec); glMaterialfv(GL_FRONT,GL_SHININESS,&df); /** 设置光源 */ glEnable(GL_LIGHTING); glLightfv(GL_LIGHT0,GL_POSITION,posl); glLightfv(GL_LIGHT0,GL_AMBIENT,amb2); glEnable(GL_LIGHT0); glLightModelfv(GL_LIGHT_MODEL_AMBIENT,amb); glEnable(GL_COLOR_MATERIAL); glColorMaterial(GL_FRONT,GL_AMBIENT_AND_DIFFUSE); /** 开启混合 */ glEnable(GL_BLEND); glBlendFunc(GL_SRC_ALPHA, GL_ONE); /** 开启纹理映射，并载入纹理 */ glEnable(GL_TEXTURE_2D); LoadTexture(); /** 用两个互相垂直的平面模拟爆炸效果 */ glNewList( dlist = glGenLists(1), GL_COMPILE); /**< 创建显示列表 */ glBegin(GL_QUADS); glRotatef(-45,0,1,0); glNormal3f(0,0,1); glTexCoord2f(0.0f, 0.0f); glVertex3f(-50,-40,0); glTexCoord2f(0.0f, 1.0f); glVertex3f(50,-40,0); glTexCoord2f(1.0f, 1.0f); glVertex3f(50,40,0); glTexCoord2f(1.0f, 0.0f); glVertex3f(-50,40,0); glNormal3f(0,0,-1); glTexCoord2f(0.0f, 0.0f); glVertex3f(-50,40,0); glTexCoord2f(0.0f, 1.0f); glVertex3f(50,40,0); glTexCoord2f(1.0f, 1.0f); glVertex3f(50,-40,0); glTexCoord2f(1.0f, 0.0f); glVertex3f(-50,-40,0); glNormal3f(1,0,0); glTexCoord2f(0.0f, 0.0f); glVertex3f(0,-40,50); glTexCoord2f(0.0f, 1.0f); glVertex3f(0,-40,-50); glTexCoord2f(1.0f, 1.0f); glVertex3f(0,40,-50); glTexCoord2f(1.0f, 0.0f); glVertex3f(0,40,50); glNormal3f(-1,0,0); glTexCoord2f(0.0f, 0.0f); glVertex3f(0,40,50); glTexCoord2f(0.0f, 1.0f); glVertex3f(0,40,-50); glTexCoord2f(1.0f, 1.0f); glVertex3f(0,-40,-50); glTexCoord2f(1.0f, 0.0f); glVertex3f(0,-40,50); glEnd(); glEndList(); /**< 结束显示列表定义 */ /** 初始化变量 */ InitVars(); /** 初始化字体 */ if(!m_Font.InitFont()) MessageBox(NULL,"初始化字体失败!","错误",MB_OK); return true; } /** 用户自定义的卸载函数 */ void CDemo::Uninit() { /** 用户自定义的卸载过程 */ if(m_pInput) { delete m_pInput; m_pInput = NULL; } for(int i=0; i < 4; i++) { m_texture[i].FreeImage(); /**< 释放纹理图像占用的内存 */ glDeleteTextures(1, &m_texture[i].ID); /**< 删除纹理对象 */ } /** 释放二次对象 */ if(cylinder_obj != NULL) gluDeleteQuadric(cylinder_obj); } /** 程序更新函数 */ void CDemo::Update(DWORD milliseconds) { /** 用户自定义的更新过程 */ m_pInput->Update(); if(m_pInput->GetKeyboard()->KeyDown(DIK_ESCAPE)) { TerminateApplication(); } } /** 计算帧速 */ void CDemo::CaculateFrameRate() { static float framesPerSecond = 0.0f; /**< 保存显示帧数 */ static float lastTime = 0.0f; /**< 记录上次时间 */ float currentTime = GetTickCount() * 0.001f; /**< 获得当前时间 */ ++framesPerSecond; /**< 显示帧数递增1 */ /** 如果时间差大�