基于openGl的三維旋轉(zhuǎn)魔方源代碼

基于openGl的三維旋轉(zhuǎn)魔方源代碼/* *This Code Was Created By Jeff Molofee 2000 *A HUGE Thanks To Fredric Echols For Cleaning Up *And Optimizing The Base Code, Making It More Flexible! *If Youve Found This Code Useful, Please Let Me Know. *Visit My Site At */ Header File For Standard Input/Output #include MoFang.hHDChDC=NULL;/ Private GDI Device ContextHGLRChRC=NULL;/ Permanent Rendering ContextHWNDhWnd=NULL;/ Holds Our Window HandleHINSTANCEhInstance;/ Holds The Instance Of The Applicationboolkeys256;/ Array Used For The Keyboard Routineboolactive=TRUE;/ Window Active Flag Set To TRUE By Defaultboolfullscreen=TRUE;/ Fullscreen Flag Set To Fullscreen Mode By DefaultGLfloatxrot;/ X Rotation ( NEW )GLfloatyrot;/ Y Rotation ( NEW )GLfloatzrot;/ Z Rotation ( NEW )GLfloat RX;GLfloat RY;GLuinttexture24;/ Storage For One Texture ( NEW )GLboolean b_RX,b_RY;LRESULTCALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);/ Declaration For WndProcAUX_RGBImageRec *LoadBMP(char *Filename)/ Loads A Bitmap ImageFILE *File=NULL;/ File Handleif (!Filename)/ Make Sure A Filename Was Givenreturn NULL;/ If Not Return NULLFile=fopen(Filename,r);/ Check To See If The File Existsif (File)/ Does The File Exist?fclose(File);/ Close The Handlereturn auxDIBImageLoad(Filename);/ Load The Bitmap And Return A Pointerreturn NULL;/ If Load Failed Return NULLint LoadGLTextures()/ Load Bitmaps And Convert To Texturesint Status=FALSE;/ Status IndicatorAUX_RGBImageRec *TextureImage1;/ Create Storage Space For The Texturememset(TextureImage,0,sizeof(void *)*1); / Set The Pointer To NULL/ Load The Bitmap, Check For Errors, If Bitmaps Not Found Quitif (TextureImage0=LoadBMP(Data/NeHe.bmp)Status=TRUE;/ Set The Status To TRUEglGenTextures(1, &texture0);/ Create The Texture/ Typical Texture Generation Using Data From The BitmapglBindTexture(GL_TEXTURE_2D, texture0);glTexImage2D(GL_TEXTURE_2D, 0, 3, TextureImage0-sizeX, TextureImage0-sizeY, 0, GL_RGB, GL_UNSIGNED_BYTE, TextureImage0-data);glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR);glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);if (TextureImage0)/ If Texture Existsif (TextureImage0-data)/ If Texture Image Existsfree(TextureImage0-data);/ Free The Texture Image Memoryfree(TextureImage0);/ Free The Image Structurereturn Status;/ Return The Statusint LoadGLTextures(char *file,int index)/ Load Bitmaps And Convert To Texturesint Status=FALSE;/ Status IndicatorAUX_RGBImageRec *TextureImage1;/ Create Storage Space For The Texturememset(TextureImage,0,sizeof(void *)*1); / Set The Pointer To NULL/ Load The Bitmap, Check For Errors, If Bitmaps Not Found Quitif (TextureImage0=LoadBMP(file)Status=TRUE;/ Set The Status To TRUEglGenTextures(1, &textureindex);/ Create The Texture/ Typical Texture Generation Using Data From The BitmapglBindTexture(GL_TEXTURE_2D, textureindex);glTexImage2D(GL_TEXTURE_2D, 0, 3, TextureImage0-sizeX, TextureImage0-sizeY, 0, GL_RGB, GL_UNSIGNED_BYTE, TextureImage0-data);glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR);glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);if (TextureImage0)/ If Texture Existsif (TextureImage0-data)/ If Texture Image Existsfree(TextureImage0-data);/ Free The Texture Image Memoryfree(TextureImage0);/ Free The Image Structurereturn Status;/ Return The StatusGLvoid ReSizeGLScene(GLsizei width, GLsizei height)/ Resize And Initialize The GL Windowif (height=0)/ Prevent A Divide By Zero Byheight=1;/ Making Height Equal OneglViewport(0,0,width,height);/ Reset The Current ViewportglMatrixMode(GL_PROJECTION);/ Select The Projection MatrixglLoadIdentity();/ Reset The Projection Matrix/ Calculate The Aspect Ratio Of The WindowgluPerspective(45.0f,(GLfloat)width/(GLfloat)height,0.1f,100.0f);glMatrixMode(GL_MODELVIEW);/ Select The Modelview MatrixglLoadIdentity();/ Reset The Modelview Matrixint InitGL(GLvoid)/ All Setup For OpenGL Goes Hereif (!LoadGLTextures(Data/y1.bmp,0)/ Jump To Texture Loading Routine ( NEW )return FALSE;/ If Texture Didnt Load Return FALSEif (!LoadGLTextures(Data/y2.bmp,1)/ Jump To Texture Loading Routine ( NEW )return FALSE;/ If Texture Didnt Load Return FALSEif (!LoadGLTextures(Data/y3.bmp,2)/ Jump To Texture Loading Routine ( NEW )return FALSE;/ If Texture Didnt Load Return FALSEif (!LoadGLTextures(Data/y4.bmp,3)/ Jump To Texture Loading Routine ( NEW )return FALSE;/ If Texture Didnt Load Return FALSEif (!LoadGLTextures(Data/y5.bmp,4)/ Jump To Texture Loading Routine ( NEW )return FALSE;/ If Texture Didnt Load Return FALSEif (!LoadGLTextures(Data/y6.bmp,5)/ Jump To Texture Loading Routine ( NEW )return FALSE;/ If Texture Didnt Load Return FALSEif (!LoadGLTextures(Data/y7.bmp,6)/ Jump To Texture Loading Routine ( NEW )return FALSE;/ If Texture Didnt Load Return FALSEif (!LoadGLTextures(Data/y8.bmp,7)/ Jump To Texture Loading Routine ( NEW )return FALSE;/ If Texture Didnt Load Return FALSE glEnable(GL_TEXTURE_2D);/ Enable Texture Mapping ( NEW )glShadeModel(GL_SMOOTH);/ Enable Smooth ShadingglClearColor(0.0f, 0.0f, 0.0f, 0.5f);/ Black BackgroundglClearDepth(1.0f);/ Depth Buffer SetupglEnable(GL_DEPTH_TEST);/ Enables Depth TestingglDepthFunc(GL_LEQUAL);/ The Type Of Depth Testing To DoglHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);/ Really Nice Perspective Calculationsreturn TRUE;/ Initialization Went OKvoid DrawObject1(GLfloat X,GLfloat Y,GLfloat Z)glBegin(GL_QUADS);/ Front FaceglTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f + X, -1.0f + Y, 1.0f + Z);glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f + X, -1.0f + Y, 1.0f + Z);glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f + X, 1.0f + Y, 1.0f + Z);glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f + X, 1.0f + Y, 1.0f + Z);/ Back FaceglTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f + X, -1.0f + Y, -1.0f + Z);glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f + X, 1.0f + Y, -1.0f + Z);glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f + X, 1.0f + Y, -1.0f + Z);glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f + X, -1.0f + Y, -1.0f + Z);/ Top FaceglTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f + X, 1.0f + Y, -1.0f + Z);glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f + X, 1.0f + Y, 1.0f + Z);glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f + X, 1.0f + Y, 1.0f + Z);glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f + X, 1.0f + Y, -1.0f + Z);/ Bottom FaceglTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f + X, -1.0f + Y, -1.0f + Z);glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f + X, -1.0f + Y, -1.0f + Z);glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f + X, -1.0f + Y, 1.0f + Z);glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f + X, -1.0f + Y, 1.0f + Z);/ Right faceglTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f + X, -1.0f + Y, -1.0f + Z);glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f + X, 1.0f + Y, -1.0f + Z);glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f + X, 1.0f + Y, 1.0f + Z);glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f + X, -1.0f + Y, 1.0f + Z);/ Left FaceglTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f + X, -1.0f + Y, -1.0f + Z);glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f + X, -1.0f + Y, 1.0f + Z);glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f + X, 1.0f + Y, 1.0f + Z);glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f + X, 1.0f + Y, -1.0f + Z);glEnd(); void DrawObject(int ID)stPoint *CubePoint = CubeID.CubePoint;glBegin(GL_QUADS);/ Front FaceglTexCoord2f(0.0f, 0.0f); glVertex3fv( CubePoint0.p);glTexCoord2f(1.0f, 0.0f); glVertex3fv( CubePoint1.p);glTexCoord2f(1.0f, 1.0f); glVertex3fv( CubePoint2.p);glTexCoord2f(0.0f, 1.0f); glVertex3fv( CubePoint3.p);/ Back FaceglTexCoord2f(1.0f, 0.0f); glVertex3fv( CubePoint4.p);glTexCoord2f(1.0f, 1.0f); glVertex3fv( CubePoint5.p);glTexCoord2f(0.0f, 1.0f); glVertex3fv( CubePoint6.p);glTexCoord2f(0.0f, 0.0f); glVertex3fv( CubePoint7.p);/ Top FaceglTexCoord2f(0.0f, 1.0f); glVertex3fv( CubePoint5.p);glTexCoord2f(0.0f, 0.0f); glVertex3fv( CubePoint3.p);glTexCoord2f(1.0f, 0.0f); glVertex3fv( CubePoint2.p);glTexCoord2f(1.0f, 1.0f); glVertex3fv( CubePoint6.p);/ Bottom FaceglTexCoord2f(1.0f, 1.0f); glVertex3fv( CubePoint4.p);glTexCoord2f(0.0f, 1.0f); glVertex3fv( CubePoint7.p);glTexCoord2f(0.0f, 0.0f); glVertex3fv( CubePoint1.p);glTexCoord2f(1.0f, 0.0f); glVertex3fv( CubePoint0.p);/ Right faceglTexCoord2f(1.0f, 0.0f); glVertex3fv( CubePoint7.p);glTexCoord2f(1.0f, 1.0f); glVertex3fv( CubePoint6.p);glTexCoord2f(0.0f, 1.0f); glVertex3fv( CubePoint2.p);glTexCoord2f(0.0f, 0.0f); glVertex3fv( CubePoint1.p);/ Left FaceglTexCoord2f(0.0f, 0.0f); glVertex3fv( CubePoint4.p);glTexCoord2f(1.0f, 0.0f); glVertex3fv( CubePoint0.p);glTexCoord2f(1.0f, 1.0f); glVertex3fv( CubePoint3.p);glTexCoord2f(0.0f, 1.0f); glVertex3fv( CubePoint5.p);glEnd(); int DrawGLScene(GLvoid)/ Heres Where We Do All The DrawingglClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);/ Clear The Screen And The Depth BufferglLoadIdentity();/ Reset The ViewglTranslatef(0.0f,0.0f,-12.0f);glTranslatef(RX,0.0f,0.0f); glTranslatef(0.0,RY,0.0); glRotatef(xrot,1.0f,0.0f,0.0f); glRotatef(yrot,0.0f,1.0f,0.0f); glRotatef(zrot,0.0f,0.0f,1.0f); /glBindTexture(GL_TEXTURE_2D, texture0); DrawObject(0);glBindTexture(GL_TEXTURE_2D, texture1); DrawObject(1);glBindTexture(GL_TEXTURE_2D, texture2); DrawObject(2);glBindTexture(GL_TEXTURE_2D, texture3); DrawObject(3);glBindTexture(GL_TEXTURE_2D, texture4); DrawObject(4);glBindTexture(GL_TEXTURE_2D, texture5); DrawObject(5);glBindTexture(GL_TEXTURE_2D, texture6); DrawObject(6);glBindTexture(GL_TEXTURE_2D, texture7); DrawObject(7);/*/ xrot+=0.15f; yrot+=0.1f; zrot+=0.2f;return TRUE;/ Keep GoingGLvoid KillGLWindow(GLvoid)/ Properly Kill The Windowif (fullscreen)/ Are We In Fullscreen Mode?ChangeDisplaySettings(NULL,0);/ If So Switch Back To The DesktopShowCursor(TRUE);/ Show Mouse Pointerif (hRC)/ Do We Have A Rendering Context?if (!wglMakeCurrent(NULL,NULL)/ Are We Able To Release The DC And RC Contexts?MessageBox(NULL,Release Of DC And RC Failed.,SHUTDOWN ERROR,MB_OK | MB_ICONINFORMATION);if (!wglDeleteContext(hRC)/ Are We Able To Delete The RC?MessageBox(NULL,Release Rendering Context Failed.,SHUTDOWN ERROR,MB_OK | MB_ICONINFORMATION);hRC=NULL;/ Set RC To NULLif (hDC & !ReleaseDC(hWnd,hDC)/ Are We Able To Release The DCMessageBox(NULL,Release Device Context Failed.,SHUTDOWN ERROR,MB_OK | MB_ICONINFORMATION);hDC=NULL;/ Set DC To NULLif (hWnd & !DestroyWindow(hWnd)/ Are We Able To Destroy The Window?MessageBox(NULL,Could Not Release hWnd.,SHUTDOWN ERROR,MB_OK | MB_ICONINFORMATION);hWnd=NULL;/ Set hWnd To NULLif (!UnregisterClass(OpenGL,hInstance)/ Are We Able To Unregister ClassMessageBox(NULL,Could Not Unregister Class.,SHUTDOWN ERROR,MB_OK | MB_ICONINFORMATION);hInstance=NULL;/ Set hInstance To NULL/*This Code Creates Our OpenGL Window. Parameters Are:* *title- Title To Appear At The Top Of The Window* *width- Width Of The GL Window Or Fullscreen Mode* *height- Height Of The GL Window Or Fullscreen Mode* *bits- Number Of Bits To Use For Color (8/16/24/32)* *fullscreenflag- Use Fullscreen Mode (TRUE) Or Windowed Mode (FALSE)*/ BOOL CreateGLWindow(char* title, int width, int height, int bits, bool fullscreenflag)GLuintPixelFormat;/ Holds The Results After Searching For A MatchWNDCLASSwc;/ Windows Class StructureDWORDdwExStyle;/ Window Extended StyleDWORDdwStyle;/ Window StyleRECTWindowRect;/ Grabs Rectangle Upper Left / Lower Right ValuesWindowRect.left=(long)0;/ Set Left Value To 0WindowRect.right=(long)width;/ Set Right Value To Requested WidthWindowRect.top=(long)0;/ Set Top Value To 0WindowRect.bottom=(long)height;/ Set Bottom Value To Requested Heightfullscreen=fullscreenflag;/ Set The Global Fullscreen FlaghInstance= GetModuleHandle(NULL);/ Grab An Instance For Our Windowwc.style= CS_HREDRAW | CS_VREDRAW | CS_OWNDC;/ Redraw On Size, And Own DC For Window.wc.lpfnWndProc= (WNDPROC) WndProc;/ WndProc Handles Messageswc.cbClsExtra= 0;/ No Extra Window Datawc.cbWndExtra= 0;/ No Extra Window Datawc.hInstance= hInstance;/ Set The Instancewc.hIcon= LoadIcon(NULL, IDI_WINLOGO);/ Load The Default Iconwc.hCursor= LoadCursor(NULL, IDC_ARROW);/ Load The Arrow Pointerwc.hbrBackground= NULL;/ No Background Required For GLwc.lpszMenuName= NULL;/ We Dont Want A Menuwc.lpszClassName= OpenGL;/ Set The Class Nameif (!RegisterClass(&wc)/ Attempt To Register The Window ClassMessageBox(NULL,Failed To Register The Window Class.,ERROR,MB_OK|MB_ICONEXCLAMATION);return FALSE;/ Return FALSEif (fullscreen)/ Attempt Fullscreen Mode?DEVMODE dmScreenSettings;/ Device Modememset(&dmScreenSettings,0,sizeof(dmScreenSettings);/ Makes Sure Memorys CleareddmScreenSettings.dmSize=sizeof(dmScreenSettings);/ Size Of The Devmode StructuredmScreenSettings.dmPelsWidth= width;/ Selected Screen WidthdmScreenSettings.dmPelsHeight= height;/ Selected Screen HeightdmScreenSettings.dmBitsPerPel= bits;/ Selected Bits Per PixeldmScreenSettings.dmFields=DM_BITSPERPEL|DM_PELSWIDTH|DM_PELSHEIGHT;/ Try To Set Selected Mode And Get Results. NOTE: CDS_FULLSCREEN Gets Rid Of Start Bar.if (ChangeDisplaySettings(&dmScreenSettings,CDS_FULLSCREEN)!=DISP_CHANGE_SUCCESSFUL)/ If The Mode Fails, Offer Two Options. Quit Or Use Windowed Mode.if (MessageBox(NULL,The Requested Fullscreen Mode Is Not Supported BynYour Video Card. Use Windowed Mode Instead?,NeHe GL,MB_YESNO|MB_ICONEXCLAMATION)=IDYES)fullscreen=FALSE;/ Windowed Mode Selected. Fullscreen = FALSEelse/ Pop Up A Message Box Letting User Know The Program Is Closing.MessageBox(NULL,Program Will Now Close.,ERROR,MB_OK|MB_ICONSTOP);return FALSE;/ Return FALSEif (fullscreen)/ Are We Still In Fullscreen Mode?dwExStyle=WS_EX_APPWINDOW;/ Window Extended StyledwStyle=WS_POPUP;/ Windows StyleShowCursor(FALSE);/ Hide Mouse PointerelsedwExStyle=WS_EX_APPWINDOW | WS_EX_WINDOWEDGE;/ Window Extended StyledwStyle=WS_OVERLAPPEDWINDOW;/ Windows StyleAdjustWindowRectEx(&WindowRect, dwStyle, FALSE, dwExStyle);/ Adjust Window To True Requested Size/ Create The Windowif (!(hWnd=CreateWindowEx(dwExStyle,/ Extended Style For The WindowOpenGL,/ Class Nametitle,/ Window TitledwStyle |/ Defined Window StyleWS_CLIPSIBLINGS |/ Required Window StyleWS_CLIPCHILDREN,/ Required Window Style0, 0,/ Window PositionWindowRect.right-WindowRect.left,/ Calculate Window WidthWindowRect.bottom-WindowRect.top,/ Calculate Window HeightNULL,/ No Parent WindowNULL,/ No MenuhInstance,/ InstanceNULL)/ Dont Pass Anything To WM_CREATEKillGLWindow();/ Reset The DisplayMessageBox(NULL,Window Creation Error.,ERROR,MB_OK|MB_ICONEXCLAMATION);return FALSE;/ Return FALSEstaticPIXELFORMATDESCRIPTOR pfd=/ pfd Tells Windows How We Want Things To Besizeof(PIXELFORMATDESCRIPTOR),/ Size Of This Pixel Format Descriptor1,/ Version NumberPFD_DRAW_TO_WINDOW |/ Format Must Support WindowPFD_SUPPORT_OPENGL |/ Format Must Support OpenGLPFD_DOUBLEBUFFER,/ Must Support Double BufferingPFD_TYPE_RGBA,/ Request An RGBA Formatbits,/ Select Our Co