基于openGl的三维旋转魔方源代码

1、 基于openGl的三维旋转魔方源代码/* *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 You've Found This Code Useful, Please Let Me Know. * */ Header File For Standard Input/Output #include ""HDChDC

2、=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=TRU

3、E;/ 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);/ Declar

4、ation 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);/

5、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(Text

6、ureImage,0,sizeof(void *)*1); / Set The Pointer To NULL/ Load The Bitmap, Check For Errors, If Bitmap's Not Found Quitif (TextureImage0=LoadBMP("Data/NeHe.bmp")Status=TRUE;/ Set The Status To TRUEglGenTextures(1, &texture0);/ Create The Texture/ Typical Texture Generation Using Dat

7、a 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

8、_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 Bitmap

9、s 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 Bitmap's Not Found Quitif (TextureImage0=LoadBMP(file)Status=

10、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, Text

11、ureImage0->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(

12、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 ViewportglMat

13、rixMode(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

14、 Matrixint InitGL(GLvoid)/ All Setup For OpenGL Goes Hereif (!LoadGLTextures("Data/y1.bmp",0)/ Jump To Texture Loading Routine ( NEW )return FALSE;/ If Texture Didn't Load Return FALSEif (!LoadGLTextures("Data/y2.bmp",1)/ Jump To Texture Loading Routine ( NEW )return FALSE;/

15、If Texture Didn't Load Return FALSEif (!LoadGLTextures("Data/y3.bmp",2)/ Jump To Texture Loading Routine ( NEW )return FALSE;/ If Texture Didn't Load Return FALSEif (!LoadGLTextures("Data/y4.bmp",3)/ Jump To Texture Loading Routine ( NEW )return FALSE;/ If Texture Didn

16、9;t Load Return FALSEif (!LoadGLTextures("Data/y5.bmp",4)/ Jump To Texture Loading Routine ( NEW )return FALSE;/ If Texture Didn't Load Return FALSEif (!LoadGLTextures("Data/y6.bmp",5)/ Jump To Texture Loading Routine ( NEW )return FALSE;/ If Texture Didn't Load Return FA

17、LSEif (!LoadGLTextures("Data/y7.bmp",6)/ Jump To Texture Loading Routine ( NEW )return FALSE;/ If Texture Didn't Load Return FALSEif (!LoadGLTextures("Data/y8.bmp",7)/ Jump To Texture Loading Routine ( NEW )return FALSE;/ If Texture Didn't Load Return FALSE glEnable(GL_TE

18、XTURE_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_PERS

19、PECTIVE_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 +

20、 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,

21、-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);glT

22、exCoord2f(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(

23、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)

24、; 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(

25、-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( CubePoin

26、t1.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,

27、 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); glVe

28、rtex3fv( 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);

29、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)

30、; glVertex3fv( CubePoint5.p);glEnd(); int DrawGLScene(GLvoid)/ Here's 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,

31、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, tex

32、ture3); 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 Goi

33、ngGLvoid 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 D

34、C 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_ICONINFORMATI

35、ON);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 Destr

36、oy 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.","SHUTDO

37、WN 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- Nu

38、mber 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 Structu

39、reDWORDdwExStyle;/ Window Extended StyleDWORDdwStyle;/ Window StyleRECTWindowRect;/ Grabs Rectangle Upper Left / Lower Right Values=(long)0;/ Set Left Value To 0=(long)width;/ Set Right Value To Requested Width=(long)0;/ Set Top Value To 0=(long)height;/ Set Bottom Value To Requested Heightfullscree

40、n=fullscreenflag;/ Set The Global Fullscreen FlaghInstance= GetModuleHandle(NULL);/ Grab An Instance For Our Window= CS_HREDRAW | CS_VREDRAW | CS_OWNDC;/ Redraw On Size, And Own DC For Window.= (WNDPROC) WndProc;/ WndProc Handles Messages= 0;/ No Extra Window Data= 0;/ No Extra Window Data= hInstanc

41、e;/ Set The Instance= LoadIcon(NULL, IDI_WINLOGO);/ Load The Default Icon= LoadCursor(NULL, IDC_ARROW);/ Load The Arrow Pointer= NULL;/ No Background Required For GL= NULL;/ We Don't Want A Menu= "OpenGL"/ Set The Class Nameif (!RegisterClass(&wc)/ Attempt To Register The Window Cl

42、assMessageBox(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 Memory's

43、Cleared=sizeof(dmScreenSettings);/ Size Of The Devmode Structure= width;/ Selected Screen Width= height;/ Selected Screen Height= 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

44、 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?","

45、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 (fu

46、llscreen)/ 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(&

47、;WindowRect, dwStyle, FALSE, dwExStyle);/ Adjust Window To True Requested Size/ Create The Windowif (!(hWnd=CreateWindowEx(dwExStyle,/ Extended Style For The Window"OpenGL",/ Class Nametitle,/ Window TitledwStyle |/ Defined Window StyleWS_CLIPSIBLINGS |/ Required Window StyleWS_CLIPCHILDRE

48、N,/ Required Window Style0, 0,/ Window Position,/ Calculate Window Width,/ Calculate Window HeightNULL,/ No Parent WindowNULL,/ No MenuhInstance,/ InstanceNULL)/ Dont Pass Anything To WM_CREATEKillGLWindow();/ Reset The DisplayMessageBox(NULL,"Window Creation Error.","ERROR",MB_O

49、K|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

50、 OpenGLPFD_DOUBLEBUFFER,/ Must Support Double BufferingPFD_TYPE_RGBA,/ Request An RGBA Formatbits,/ Select Our Color Depth0, 0, 0, 0, 0, 0,/ Color Bits Ignored0,/ No Alpha Buffer0,/ Shift Bit Ignored0,/ No Accumulation Buffer0, 0, 0, 0,/ Accumulation Bits Ignored16,/ 16Bit Z-Buffer (Depth Buffer) 0,/ No Stencil Buffer0,/ No Auxiliary BufferPFD_MAIN_PLANE,/ Main Drawing Layer0,/ Reserved0, 0, 0/ Layer Masks Ignored;if (!(hDC=GetDC(hWnd)/ Did We Get A Device Context?KillGLWindow();/ Reset The DisplayMessageBox(NULL,"Can'