New Paste :: Recent Pastes:: Add Line Numbers
hhhh by banshee23
#include <windows.h> // Standard Header For Most Programs #include <gl/gl.h> // The GL Header File #include <gl/glut.h> // The GL Utility Toolkit (Glut) Header #include <fstream.h> #include <iostream.h> #include <stdlib.h> #include <math.h> #include <stdio.h> #define BITMAP_ID 0x4D42 // the universal bitmap ID const int MAX_POLYGONS = 25000; int i = 0; float XPOS = -1.5; float YPOS = -20.0; float ZPOS = -6.0; int max_vertices = 0; float a = 0; float b = 0; float c = 0; float MOUSE_X = 0; float MOUSE_Y = 0; double data[MAX_POLYGONS * 3]; //MAX Polygons int mapdata(); void gravity(); ////// Texture Information BITMAPINFOHEADER bitmapInfoHeader; // bitmap info header unsigned char* bitmapData; // the texture data unsigned int texture; // the texture object // LoadBitmapFile // desc: Returns a pointer to the bitmap image of the bitmap specified // by filename. Also returns the bitmap header information. // No support for 8-bit bitmaps. unsigned char *LoadBitmapFile(char *filename, BITMAPINFOHEADER *bitmapInfoHeader) { FILE *filePtr; // the file pointer BITMAPFILEHEADER bitmapFileHeader; // bitmap file header unsigned char *bitmapImage; // bitmap image data int imageIdx = 0; // image index counter unsigned char tempRGB; // swap variable // open filename in "read binary" mode filePtr = fopen(filename, "rb"); if (filePtr == NULL) return NULL; // read the bitmap file header fread(&bitmapFileHeader, sizeof(BITMAPFILEHEADER), 1, filePtr); // verify that this is a bitmap by checking for the universal bitmap id if (bitmapFileHeader.bfType != BITMAP_ID) { fclose(filePtr); return NULL; } // read the bitmap information header fread(bitmapInfoHeader, sizeof(BITMAPINFOHEADER), 1, filePtr); // move file pointer to beginning of bitmap data fseek(filePtr, bitmapFileHeader.bfOffBits, SEEK_SET); // allocate enough memory for the bitmap image data bitmapImage = (unsigned char*)malloc(bitmapInfoHeader->biSizeImage); // verify memory allocation if (!bitmapImage) { free(bitmapImage); fclose(filePtr); return NULL; } // read in the bitmap image data fread(bitmapImage, 1, bitmapInfoHeader->biSizeImage, filePtr); // make sure bitmap image data was read if (bitmapImage == NULL) { fclose(filePtr); return NULL; } // swap the R and B values to get RGB since the bitmap color format is in BGR for (imageIdx = 0; imageIdx < bitmapInfoHeader->biSizeImage; imageIdx+=3) { tempRGB = bitmapImage[imageIdx]; bitmapImage[imageIdx] = bitmapImage[imageIdx + 2]; bitmapImage[imageIdx + 2] = tempRGB; } // close the file and return the bitmap image data fclose(filePtr); return bitmapImage; } // WriteBitmapFile() // desc: takes image data and saves it into a 24-bit RGB .BMP file // with width X height dimensions int WriteBitmapFile(char *filename, int width, int height, unsigned char *imageData) { FILE *filePtr; // file pointer BITMAPFILEHEADER bitmapFileHeader; // bitmap file header BITMAPINFOHEADER bitmapInfoHeader; // bitmap info header int imageIdx; // used for swapping RGB->BGR unsigned char tempRGB; // used for swapping // open file for writing binary mode filePtr = fopen(filename, "wb"); if (!filePtr) return 0; // define the bitmap file header bitmapFileHeader.bfSize = sizeof(BITMAPFILEHEADER); bitmapFileHeader.bfType = 0x4D42; bitmapFileHeader.bfReserved1 = 0; bitmapFileHeader.bfReserved2 = 0; bitmapFileHeader.bfOffBits = sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER); // define the bitmap information header bitmapInfoHeader.biSize = sizeof(BITMAPINFOHEADER); bitmapInfoHeader.biPlanes = 1; bitmapInfoHeader.biBitCount = 24; // 24-bit bitmapInfoHeader.biCompression = BI_RGB; // no compression bitmapInfoHeader.biSizeImage = width * abs(height) * 3; // width * height * (RGB bytes) bitmapInfoHeader.biXPelsPerMeter = 0; bitmapInfoHeader.biYPelsPerMeter = 0; bitmapInfoHeader.biClrUsed = 0; bitmapInfoHeader.biClrImportant = 0; bitmapInfoHeader.biWidth = width; // bitmap width bitmapInfoHeader.biHeight = height; // bitmap height // switch the image data from RGB to BGR for (imageIdx = 0; imageIdx < bitmapInfoHeader.biSizeImage; imageIdx+=3) { tempRGB = imageData[imageIdx]; imageData[imageIdx] = imageData[imageIdx + 2]; imageData[imageIdx + 2] = tempRGB; } // write the bitmap file header fwrite(&bitmapFileHeader, 1, sizeof(BITMAPFILEHEADER), filePtr); // write the bitmap info header fwrite(&bitmapInfoHeader, 1, sizeof(BITMAPINFOHEADER), filePtr); // write the image data fwrite(imageData, 1, bitmapInfoHeader.biSizeImage, filePtr); // close our file fclose(filePtr); return 1; } // DrawTextureCube // desc: draws a cube at the specified location in // the current coordinate space void processMousePassiveMotion(int x, int y) { //XPOS = x / 10; //YPOS = y / 10; MOUSE_X = x; MOUSE_Y = y; } void InitGL ( GLvoid ) // Create Some Everyday Functions { glShadeModel(GL_SMOOTH); // Enable Smooth Shading glClearColor(0.0f, 0.0f, 0.0f, 0.5f); // Black Background glClearDepth(1.0f); // Depth Buffer Setup glEnable(GL_DEPTH_TEST); // Enables Depth Testing glDepthFunc(GL_LEQUAL); // The Type Of Depth Testing To Do glEnable ( GL_COLOR_MATERIAL ); glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST); // added! glEnable(GL_TEXTURE_2D); // enable 2D texturing // load our bitmap file bitmapData = LoadBitmapFile("checker.bmp", &bitmapInfoHeader); glGenTextures(1, &texture); // generate texture object glBindTexture(GL_TEXTURE_2D, texture); // enable our texture object glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); // generate the texture image glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, bitmapInfoHeader.biWidth, bitmapInfoHeader.biHeight, 0, GL_RGB, GL_UNSIGNED_BYTE, bitmapData); } void display ( void ) // Create The Display Function { i = 0; float tex1 = 0.0; float tex = 1.0; glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // Clear Screen And Depth Buffer glLoadIdentity(); // Reset The Current Modelview Matrix glPushMatrix(); //glTranslatef(XPOS,YPOS,ZPOS); // Move Left 1.5 Units And Into The Screen 6.0 gluPerspective(60, 1.0, 1.0, 10000.0); gluLookAt ( 0.0, 0.0, ZPOS, MOUSE_X, MOUSE_Y, 0.0, 0.0, 1.0, 0.0); //glRotatef(MOUSE_X,MOUSE_Y, 0.0, 0.0); glBegin(GL_TRIANGLES); while(i <= max_vertices) { glTexCoord2f(i + 0.5, i + 0.5); //glColor3f(data[0],data[i+1],data[0]); glVertex3f(data[i],data[i+1],data[i+2]); i = i + 3; } glEnd(); // Done Drawing The triangles glPopMatrix(); glutSwapBuffers ( ); //gravity(); //Call gravity } void reshape ( int width , int height ) // Create The Reshape Function (the viewport) { if (height==0) // Prevent A Divide By Zero By { height=1; // Making Height Equal One } glViewport(0,0,width,height); // Reset The Current Viewport glMatrixMode(GL_PROJECTION); // Select The Projection Matrix glLoadIdentity(); // Reset The Projection Matrix // Calculate The Aspect Ratio Of The Window gluPerspective(45.0f,(GLfloat)width/(GLfloat)height,0.1f,10000.0f); glMatrixMode(GL_MODELVIEW); // Select The Modelview Matrix glLoadIdentity(); } void keyboard ( unsigned char key, int x, int y ) // Create Keyboard Function { switch ( key ) { case 27: // When Escape Is Pressed... exit ( 0 ); // Exit The Program break; // Ready For Next Case default: // Now Wrap It Up break; } } void arrow_keys ( int a_keys, int x, int y ) // Movement! { switch (a_keys) { case GLUT_KEY_UP: ZPOS = ZPOS + 10.1; break; case GLUT_KEY_DOWN: ZPOS = ZPOS - 10.1; break; case GLUT_KEY_LEFT: XPOS = XPOS + 10.1; break; case GLUT_KEY_RIGHT: XPOS = XPOS - 10.1; break; default: break; } } void main ( int argc, char** argv ) // Create Main Function For Bringing It All Together { mapdata(); //read the map data glutInit ( &argc, argv ); // Erm Just Write It =) glutInitDisplayMode ( GLUT_RGBA | GLUT_DOUBLE ); // Display Mode glutInitWindowSize ( 500, 500 ); // If glutFullScreen wasn't called this is the window size glutCreateWindow ( "NeHe's OpenGL Framework" ); // Window Title (argv[0] for current directory as title) glutFullScreen ( ); // Put Into Full Screen InitGL (); glutDisplayFunc ( display ); // Matching Earlier Functions To Their Counterparts glutReshapeFunc ( reshape ); glutKeyboardFunc ( keyboard ); glutPassiveMotionFunc(processMousePassiveMotion); glutSpecialFunc ( arrow_keys ); glutIdleFunc ( display ); //adding here the mouse processing callbacks glutMainLoop ( ); // Initialize The Main Loop } int mapdata() //Raw data loader pumps values into an array { ifstream file_in("ahh.txt"); if(!file_in) return 1; int i = 0; while(!file_in.eof()) { file_in >> data[i]; cout << data[i] << endl; i++; } max_vertices = i; cout << "Vertices = " << max_vertices << endl; cout << "Polygons = " << max_vertices / 3 <<endl; file_in.close(); return 0; } void gravity() { YPOS = YPOS + 0.01; }
