/* * This code was created by Jeff Molofee '99 * (ported to Linux/SDL by Ti Leggett '01) * * If you've found this code useful, please let me know. * * Visit Jeff at http://nehe.gamedev.net/ * * or for port-specific comments, questions, bugreports etc. * email to leggett@eecs.tulane.edu */ /* Comment this out if you don't want sound. */ #define SOUND #include #include #include #include #include #include "SDL.h" #include "SDL_image.h" #ifdef SOUND #include "SDL_mixer.h" #endif /* screen width, height, and bit depth */ #define SCREEN_WIDTH 320 #define SCREEN_HEIGHT 240 #define SCREEN_BPP 16 /* Set up some booleans */ #define TRUE 1 #define FALSE 0 /* This is our SDL surface */ SDL_Surface *surface; #ifdef SOUND /* Our audio chunk */ Mix_Chunk *chunk; Mix_Chunk *chunk2; Mix_Music *music; #endif /* Build Our Vertex Structure */ typedef struct { float x, y, z; /* 3D Coordinates */ float u, v; /* Texture Coordinates */ } vertex; /* Build Our Triangle Structure */ typedef struct { vertex vertex[3]; /* Array Of Three Vertices */ } triangle; /* Build Our Sector Structure */ typedef struct { int numTriangles; /* Number Of Triangles In Sector */ triangle *triangle; /* Pointer To Array Of Triangles */ } sector; sector sector1; /* Our sector */ GLfloat yrot; /* Camera rotation variable */ GLfloat xpos, zpos; /* Camera pos variable */ GLfloat walkbias, walkbiasangle; /* Head-bobbing variables */ GLfloat lookupdown; /* Ambient Light Values */ GLfloat LightAmbient[] = { 0.5f, 0.5f, 0.5f, 1.0f }; /* Diffuse Light Values */ GLfloat LightDiffuse[] = { 1.0f, 1.0f, 1.0f, 1.0f }; /* Light Position */ GLfloat LightPosition[] = { 0.0f, 0.0f, 2.0f, 1.0f }; /* constant used for converting to radians */ const float piover180 = 0.0174532925f; GLuint filter; /* Which Filter To Use */ GLuint texture[3]; /* Storage for 3 textures */ GLuint floortexture[3]; /* Storage for 3 textures */ GLuint usatexture[2]; /* Storage for 1 textures */ GLuint pngtexture[2]; /* Storage for 1 textures */ GLuint horiztexture[2]; /* Storage for 1 textures */ int walk = 0; int gira = 0; int Map[12][12]; #ifdef SOUND void PlaySound( char *sound, int repeat ) { if ( sound == NULL ) { Mix_HaltChannel( 1 ); Mix_FreeChunk( chunk ); chunk = NULL; return; } if ( chunk ) { Mix_HaltChannel( 1 ); Mix_FreeChunk( chunk ); chunk = NULL; } chunk = Mix_LoadWAV( sound ); if ( chunk == NULL ) fprintf( stderr, "Failed to load sound: %s\n", sound ); Mix_PlayChannel( -1, chunk, repeat ); return; } void PlaySound2( char *sound, int repeat ) { if ( sound == NULL ) { Mix_HaltChannel( 2 ); Mix_FreeChunk( chunk2 ); chunk2 = NULL; return; } if ( chunk2 ) { Mix_HaltChannel( 2 ); Mix_FreeChunk( chunk2 ); chunk2 = NULL; } chunk2 = Mix_LoadWAV( sound ); if ( chunk2 == NULL ) fprintf( stderr, "Failed to load sound: %s\n", sound ); Mix_PlayChannel( -1, chunk2, repeat ); return; } #endif void TestColision(float x1, float y1, float x2, float y2, float u1, float v1, float u2, float v2) { float a1 = (y2-y1); float b1 = (x1-x2); double c1 = a1*x1+b1*y1; float a2 = (v2-v1); float b2 = (u1-u2); double c2 = a2*u1+b2*v1; double det = a1*b2 - a2*b1; double xi,yi,xmax,xmin,ymax,ymin,umax,umin,vmax,vmin; if (det == 0) { /*NO es tallen --- son paralelas*/ } else { xi = (b2*c1-b1*c2)/det; yi = (a1*c2-a2*c1)/det; if (x1<=x2) {xmin = x1; xmax = x2;}else {xmin = x2; xmax = x1;} if (y1<=y2) {ymin = y1; ymax = y2;}else {ymin = y2; ymax = y1;} if (u1<=u2) {umin = u1; umax = u2;}else {umin = u2; umax = u1;} if (v1<=v2) {vmin = v1; vmax = v2;}else {vmin = v2; vmax = v1;} if ((xmin <= xi) && ( xi <= xmax) && (ymin <= yi) && ( yi <= ymax) && (umin <= xi) && ( xi <= umax) && (vmin <= yi) && ( yi <= vmax)) { /* es tallen*/ PlaySound2( "data/target.wav", 0 ); } else { /* es tallen pero no en el segment*/ } } } /* function to release/destroy our resources and restoring the old desktop */ void Quit( int returnCode ) { #ifdef SOUND /* Stop playing the music */ Mix_HaltMusic( ); /* Free up the memory for the music */ Mix_FreeMusic( music ); /* Free up any memory for the sfx */ Mix_FreeChunk( chunk ); Mix_FreeChunk( chunk2 ); /* Close our audio device */ Mix_CloseAudio( ); /* Close up the sound sub system */ SDL_QuitSubSystem( SDL_INIT_AUDIO ); #endif /* clean up the window */ SDL_Quit( ); /* Deallocate things we allocated */ if ( sector1.triangle ) free( sector1.triangle ); /* and exit appropriately */ exit( returnCode ); } /* function to load in bitmap as a GL texture */ int LoadGLTextures( ) { /* Status indicator */ int Status = FALSE; /* Create storage space for the texture */ SDL_Surface *TextureImage[1]; /* Load The Bitmap, Check For Errors, If Bitmap's Not Found Quit */ if ( ( TextureImage[0] = SDL_LoadBMP( "data/mud.bmp" ) ) ) { /* Set the status to true */ Status = TRUE; /* Create The Texture */ glGenTextures( 3, &texture[0] ); /* Load in texture 1 */ /* Typical Texture Generation Using Data From The Bitmap */ glBindTexture( GL_TEXTURE_2D, texture[0] ); /* Generate The Texture */ glTexImage2D( GL_TEXTURE_2D, 0, 3, TextureImage[0]->w, TextureImage[0]->h, 0, GL_BGR, GL_UNSIGNED_BYTE, TextureImage[0]->pixels ); /* Nearest Filtering */ glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST ); glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST ); /* Load in texture 2 */ /* Typical Texture Generation Using Data From The Bitmap */ glBindTexture( GL_TEXTURE_2D, texture[1] ); /* Linear Filtering */ glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR ); glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR ); /* Generate The Texture */ glTexImage2D( GL_TEXTURE_2D, 0, 3, TextureImage[0]->w, TextureImage[0]->h, 0, GL_BGR, GL_UNSIGNED_BYTE, TextureImage[0]->pixels ); /* Load in texture 3 */ /* Typical Texture Generation Using Data From The Bitmap */ glBindTexture( GL_TEXTURE_2D, texture[2] ); /* Mipmapped Filtering */ glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST ); glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR ); /* Generate The MipMapped Texture ( NEW ) */ gluBuild2DMipmaps( GL_TEXTURE_2D, 3, TextureImage[0]->w, TextureImage[0]->h, GL_BGR, GL_UNSIGNED_BYTE, TextureImage[0]->pixels ); } Status = FALSE; /* Load The Bitmap, Check For Errors, If Bitmap's Not Found Quit */ if ( ( TextureImage[0] = SDL_LoadBMP( "data/floor.bmp" ) ) ) { /* Set the status to true */ Status = TRUE; /* Create The Texture */ glGenTextures( 3, &floortexture[0] ); /* Load in texture 1 */ /* Typical Texture Generation Using Data From The Bitmap */ glBindTexture( GL_TEXTURE_2D, floortexture[0] ); /* Generate The Texture */ glTexImage2D( GL_TEXTURE_2D, 0, 3, TextureImage[0]->w, TextureImage[0]->h, 0, GL_BGR, GL_UNSIGNED_BYTE, TextureImage[0]->pixels ); /* Nearest Filtering */ glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST ); glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST ); /* Load in texture 2 */ /* Typical Texture Generation Using Data From The Bitmap */ glBindTexture( GL_TEXTURE_2D, floortexture[1] ); /* Linear Filtering */ glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR ); glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR ); /* Generate The Texture */ glTexImage2D( GL_TEXTURE_2D, 0, 3, TextureImage[0]->w, TextureImage[0]->h, 0, GL_BGR, GL_UNSIGNED_BYTE, TextureImage[0]->pixels ); /* Load in texture 3 */ /* Typical Texture Generation Using Data From The Bitmap */ glBindTexture( GL_TEXTURE_2D, floortexture[2] ); /* Mipmapped Filtering */ glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST ); glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR ); /* Generate The MipMapped Texture ( NEW ) */ gluBuild2DMipmaps( GL_TEXTURE_2D, 3, TextureImage[0]->w, TextureImage[0]->h, GL_BGR, GL_UNSIGNED_BYTE, TextureImage[0]->pixels ); } /* Load The Bitmap, Check For Errors, If Bitmap's Not Found Quit */ if ( ( TextureImage[0] = SDL_LoadBMP( "data/usa.bmp" ) ) ) { /* Set the status to true */ Status = TRUE; /* Create The Texture */ glGenTextures( 1, &usatexture[0] ); /* Load in texture 1 */ /* Typical Texture Generation Using Data From The Bitmap */ glBindTexture( GL_TEXTURE_2D, usatexture[0] ); /* Generate The Texture */ glTexImage2D( GL_TEXTURE_2D, 0, 3, TextureImage[0]->w, TextureImage[0]->h, 0, GL_BGR, GL_UNSIGNED_BYTE, TextureImage[0]->pixels ); /* Nearest Filtering */ glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST ); glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST ); } /* Load The Bitmap, Check For Errors, If Bitmap's Not Found Quit */ if ( ( TextureImage[0] = SDL_LoadBMP( "data/usamask.bmp" ) ) ) { /* Set the status to true */ Status = TRUE; /* Create The Texture */ glGenTextures( 1, &usatexture[1] ); /* Load in texture 1 */ /* Typical Texture Generation Using Data From The Bitmap */ glBindTexture( GL_TEXTURE_2D, usatexture[1] ); /* Generate The Texture */ glTexImage2D( GL_TEXTURE_2D, 0, 3, TextureImage[0]->w, TextureImage[0]->h, 0, GL_BGR, GL_UNSIGNED_BYTE, TextureImage[0]->pixels ); /* Nearest Filtering */ glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST ); glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST ); } /* Load The Bitmap, Check For Errors, If Bitmap's Not Found Quit */ if ( ( TextureImage[0] = SDL_LoadBMP( "data/horiz.bmp" ) ) ) { /* Set the status to true */ Status = TRUE; /* Create The Texture */ glGenTextures( 1, &horiztexture[0] ); /* Load in texture 1 */ /* Typical Texture Generation Using Data From The Bitmap */ glBindTexture( GL_TEXTURE_2D, horiztexture[0] ); /* Generate The Texture */ glTexImage2D( GL_TEXTURE_2D, 0, 3, TextureImage[0]->w, TextureImage[0]->h, 0, GL_BGR, GL_UNSIGNED_BYTE, TextureImage[0]->pixels ); /* Nearest Filtering */ glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST ); glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST ); } /* Load The Bitmap, Check For Errors, If Bitmap's Not Found Quit */ if ( ( TextureImage[0] = SDL_LoadBMP( "data/horiz3.bmp" ) ) ) { /* Set the status to true */ Status = TRUE; /* Create The Texture */ glGenTextures( 1, &horiztexture[1] ); /* Load in texture 1 */ /* Typical Texture Generation Using Data From The Bitmap */ glBindTexture( GL_TEXTURE_2D, horiztexture[1] ); /* Generate The Texture */ glTexImage2D( GL_TEXTURE_2D, 0, 3, TextureImage[0]->w, TextureImage[0]->h, 0, GL_BGR, GL_UNSIGNED_BYTE, TextureImage[0]->pixels ); /* Nearest Filtering */ glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST ); glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST ); } if ( ( TextureImage[0] = IMG_Load( "data/mir.png" ) ) ) { /* Set the status to true */ Status = TRUE; /* Create The Texture */ glGenTextures( 1, &pngtexture[0] ); /* Load in texture 1 */ /* Typical Texture Generation Using Data From The Bitmap */ glBindTexture( GL_TEXTURE_2D, pngtexture[0] ); /* Generate The Texture */ glTexImage2D( GL_TEXTURE_2D, 0, 3, TextureImage[0]->w, TextureImage[0]->h, 0, GL_RGBA, GL_UNSIGNED_BYTE, TextureImage[0]->pixels ); /* Nearest Filtering */ glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST ); glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST ); } /* Free up any memory we may have used */ if ( TextureImage[0] ) SDL_FreeSurface( TextureImage[0] ); return Status; } /* Read In A String */ void readstr( FILE *f, char *string ) { /* Start A Loop */ do { /* Read One Line */ fgets( string, 255, f ); } while ( ( string[0] == '/' ) || ( string[0] == '\n' ) ); return; } /* Setup Our World */ void SetupWorld( char* worldFile ) { FILE *filein; /* File To Work With */ int numTriangles; /* Number of Triangles */ char oneLine[255]; /* One line from conf file */ float x, y, z, u, v; /* 3d and texture coordinates */ int triLoop; /* Triangle loop variable */ int verLoop; /* Vertex loop variable */ /* Open Our File */ filein = fopen( worldFile, "rt" ); /* Grab a line from 'filein' */ readstr( filein, oneLine ); /* Read in number of triangle */ sscanf( oneLine, "NUMPOLLIES %d\n", &numTriangles ); /* allocate space for our triangles */ sector1.triangle = malloc( numTriangles * sizeof( triangle ) ); if ( sector1.triangle == NULL ) { fprintf( stderr, "Could not allocate memory for triangles.\n" ); Quit( 1 ); } sector1.numTriangles = numTriangles; /* Get coords for each triangle */ for ( triLoop = 0; triLoop < numTriangles; triLoop++ ) { for ( verLoop = 0; verLoop < 3; verLoop++ ) { readstr( filein, oneLine ); sscanf( oneLine, "%f %f %f %f %f\n", &x, &y, &z, &u, &v ); sector1.triangle[triLoop].vertex[verLoop].x = x; sector1.triangle[triLoop].vertex[verLoop].y = y; sector1.triangle[triLoop].vertex[verLoop].z = z; sector1.triangle[triLoop].vertex[verLoop].u = u; sector1.triangle[triLoop].vertex[verLoop].v = v; } } /* Close Our File */ fclose( filein ); return; } void initMap () { short i, j; /* First initialize them all to FALSE to clear the map */ for (i = 0; i < 12; i++) { for (j = 0; j < 12; j++) { Map[i][j] = FALSE; } } Map [0][0] = TRUE; Map [1][0] = TRUE; Map [2][0] = TRUE; Map [3][0] = TRUE; Map [4][0] = TRUE; Map [7][0] = TRUE; Map [8][0] = TRUE; Map [9][0] = TRUE; Map [10][0] = TRUE; Map [11][0] = TRUE; Map [0][1] = TRUE; Map [1][1] = TRUE; Map [2][1] = TRUE; Map [3][1] = TRUE; Map [4][1] = TRUE; Map [7][1] = TRUE; Map [8][1] = TRUE; Map [9][1] = TRUE; Map [10][1] = TRUE; Map [11][1] = TRUE; Map [0][2] = TRUE; Map [1][2] = TRUE; Map [10][2] = TRUE; Map [11][2] = TRUE; Map [0][3] = TRUE; Map [1][3] = TRUE; Map [10][3] = TRUE; Map [11][3] = TRUE; Map [0][4] = TRUE; Map [1][4] = TRUE; Map [10][4] = TRUE; Map [11][4] = TRUE; Map [0][7] = TRUE; Map [1][7] = TRUE; Map [10][7] = TRUE; Map [11][7] = TRUE; Map [0][8] = TRUE; Map [1][8] = TRUE; Map [10][8] = TRUE; Map [11][8] = TRUE; Map [0][9] = TRUE; Map [1][9] = TRUE; Map [10][9] = TRUE; Map [11][9] = TRUE; Map [0][10] = TRUE; Map [1][10] = TRUE; Map [2][10] = TRUE; Map [3][10] = TRUE; Map [4][10] = TRUE; Map [7][10] = TRUE; Map [8][10] = TRUE; Map [9][10] = TRUE; Map [10][10] = TRUE; Map [11][10] = TRUE; Map [0][11] = TRUE; Map [1][11] = TRUE; Map [2][11] = TRUE; Map [3][11] = TRUE; Map [4][11] = TRUE; Map [7][11] = TRUE; Map [8][11] = TRUE; Map [9][11] = TRUE; Map [10][11] = TRUE; Map [11][11] = TRUE; } /* function to reset our viewport after a window resize */ int resizeWindow( int width, int height ) { /* Height / width ration */ GLfloat ratio; /* Protect against a divide by zero */ if ( height == 0 ) height = 1; ratio = ( GLfloat )width / ( GLfloat )height; /* Setup our viewport. */ glViewport( 0, 0, ( GLint )width, ( GLint )height ); /* change to the projection matrix and set our viewing volume. */ glMatrixMode( GL_PROJECTION ); glLoadIdentity( ); /* Set our perspective */ gluPerspective( 45.0f, ratio, 0.1f, 100.0f ); /* Make sure we're chaning the model view and not the projection */ glMatrixMode( GL_MODELVIEW ); /* Reset The View */ glLoadIdentity( ); return( TRUE ); } /* function to handle key press events */ void handleKeyPress( SDL_keysym *keysym ) { switch ( keysym->sym ) { case SDLK_ESCAPE: /* ESC key was pressed */ Quit( 0 ); break; case SDLK_F1: /* F1 key was pressed * this toggles fullscreen mode */ SDL_WM_ToggleFullScreen( surface ); break; case SDLK_RIGHT: /* Right arrow key was pressed * this effectively turns the camera right, but does it by * rotating the scene left */ yrot -= 1.5f; break; case SDLK_LEFT: /* Left arrow key was pressed * this effectively turns the camera left, but does it by * rotating the scene right */ yrot += 1.5f; break; case SDLK_UP: /* Up arrow key was pressed * this moves the player forward */ /* Move On The X-Plane Based On Player Direction */ xpos -= ( float )sin( yrot * piover180 ) * 0.05f; /* Move On The Z-Plane Based On Player Direction */ zpos -= ( float )cos( yrot * piover180 ) * 0.05f; if ( walkbiasangle >= 359.0f ) walkbiasangle = 0.0f; else walkbiasangle+= 10; /* Causes the player to bounce */ walkbias = ( float )sin( walkbiasangle * piover180 ) / 20.0f; break; case SDLK_DOWN: /* Down arrow key was pressed * this causes the player to move backwards */ /* Move On The X-Plane Based On Player Direction */ xpos += ( float )sin( yrot * piover180 ) * 0.05f; /* Move On The Z-Plane Based On Player Direction */ zpos += ( float )cos( yrot * piover180 ) * 0.05f; if ( walkbiasangle <= 1.0f ) walkbiasangle = 359.0f; else walkbiasangle -= 10; walkbias = ( float )sin( walkbiasangle * piover180 ) / 20.0f; break; case SDLK_SPACE: #ifdef SOUND /* Play The Death Sound */ PlaySound( "data/shot.wav", 0 ); #endif break; default: break; } return; } /* general OpenGL initialization function */ int initGL( GLvoid ) { /* Load in the texture */ if ( !LoadGLTextures( ) ) return FALSE; /* Enable Texture Mapping */ glEnable( GL_TEXTURE_2D ); /* Enable smooth shading */ glShadeModel( GL_SMOOTH ); glDisable (GL_LINE_SMOOTH); /* Set the background black */ glClearColor( 0.0f, 0.0f, 0.0f, 0.0f ); /* Depth buffer setup */ glClearDepth( 1.0f ); /* Enables Depth Testing */ glEnable( GL_DEPTH_TEST ); /* The Type Of Depth Test To Do */ glDepthFunc( GL_LEQUAL ); /* Really Nice Perspective Calculations */ glHint( GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST ); /* Setup The Ambient Light */ glLightfv( GL_LIGHT1, GL_AMBIENT, LightAmbient ); /* Setup The Diffuse Light */ glLightfv( GL_LIGHT1, GL_DIFFUSE, LightDiffuse ); /* Position The Light */ glLightfv( GL_LIGHT1, GL_POSITION, LightPosition ); /* Enable Light One */ glEnable( GL_LIGHT1 ); lookupdown = 0.0f; walkbias = 0.0f; walkbiasangle = 0.0f; /* Full Brightness, 50% Alpha */ glColor4f( 1.0f, 1.0f, 1.0f, 0.5f); /* Blending Function For Translucency Based On Source Alpha Value */ glBlendFunc( GL_SRC_ALPHA, GL_ONE ); return( TRUE ); } /* Here goes our drawing code */ int drawGLScene( GLvoid ) { /* These are to calculate our fps */ static GLint T0 = 0; static GLint Frames = 0; /* Floating Point For Temp X, Y, Z, U And V Vertices */ GLfloat x_m, y_m, z_m, u_m, v_m; /* Used For Player Translation On The X Axis */ GLfloat xtrans = -xpos; /* Used For Player Translation On The Z Axis */ GLfloat ztrans = -zpos; /* Used For Bouncing Motion Up And Down */ GLfloat ytrans = -walkbias - 0.18f; /* 360 Degree Angle For Player Direction */ GLfloat sceneroty = 360.0f - yrot; /* Loop variable */ int loop_m; float newx, newz; int Xmap, Zmap; /* per al punt de mira */ GLfloat xmir = xpos + 0.13 * sin(sceneroty* piover180); GLfloat zmir = zpos - 0.13 * cos(sceneroty* piover180); GLfloat ymir = +walkbias + 0.17f; if (gira == 1) { yrot += 1.5f; if (yrot > 359) yrot = 0; } else if (gira == -1) { yrot -= 1.5f; if (yrot < 0) yrot = 359; } if (walk == 1) { newx = xpos - 8 * (( float )sin( yrot * piover180 ) * 0.05f); newz = zpos - 8 * (( float )cos( yrot * piover180 ) * 0.05f); Xmap = floor((newx + 3) * 2); Zmap = floor((newz + 3) * 2); if ((Map[Xmap][Zmap] == FALSE)) { /* Up arrow key was pressed * this moves the player forward */ /* Move On The X-Plane Based On Player Direction */ xpos -= ( float )sin( yrot * piover180 ) * 0.05f; /* Move On The Z-Plane Based On Player Direction */ zpos -= ( float )cos( yrot * piover180 ) * 0.05f; if ( walkbiasangle >= 359.0f ) walkbiasangle = 0.0f; else walkbiasangle+= 10; /* Causes the player to bounce */ walkbias = ( float )sin( walkbiasangle * piover180 ) / 20.0f; } } else if (walk == -1) { newx = xpos + 8 * (( float )sin( yrot * piover180 ) * 0.05f); newz = zpos + 8 * (( float )cos( yrot * piover180 ) * 0.05f); Xmap = floor((newx + 3) * 2); Zmap = floor((newz + 3) * 2); if ((Map[Xmap][Zmap] == FALSE)) { /* Down arrow key was pressed * this causes the player to move backwards */ /* Move On The X-Plane Based On Player Direction */ xpos += ( float )sin( yrot * piover180 ) * 0.05f; /* Move On The Z-Plane Based On Player Direction */ zpos += ( float )cos( yrot * piover180 ) * 0.05f; if ( walkbiasangle <= 1.0f ) walkbiasangle = 359.0f; else walkbiasangle -= 10; walkbias = ( float )sin( walkbiasangle * piover180 ) / 20.0f; } } /* Clear The Screen And The Depth Buffer */ glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT ); glLoadIdentity( ); /* Rotate Up And Down To Look Up And Down */ glRotatef( lookupdown, 1.0f, 0.0f , 0.0f ); /* Rotate Depending On Direction Player Is Facing */ glRotatef( sceneroty, 0.0f, 1.0f , 0.0f ); /* Translate The Scene Based On Player Position */ glTranslatef( xtrans, ytrans, ztrans ); /* Select A Texture Based On filter */ glBindTexture( GL_TEXTURE_2D, floortexture[filter] ); glBegin(GL_QUADS); glTexCoord2f( 3.0, 3.0 ); glVertex3f( -3.0, 0.0, 3.0 ); glTexCoord2f( -3.0, 3.0 ); glVertex3f( 3.0, 0.0, 3.0 ); glTexCoord2f( -3.0, -3.0 ); glVertex3f( 3.0, 0.0, -3.0 ); glTexCoord2f( 3.0, -3.0 ); glVertex3f( -3.0, 0.0, -3.0 ); glEnd(); /* Select A Texture Based On filter */ glBindTexture( GL_TEXTURE_2D, horiztexture[0] ); glBegin(GL_QUADS); glTexCoord2f( 0.0, 1.0 ); glVertex3f( 3.0, 0.0, -3.0 ); glTexCoord2f( 1.0, 1.0 ); glVertex3f( -3.0, 0.0, -3.0 ); glTexCoord2f( 1.0, 0.0 ); glVertex3f( -3.0, 4.0, -3.0 ); glTexCoord2f( 0.0, 0.0 ); glVertex3f( 3.0, 4.0, -3.0 ); glEnd(); /* Select A Texture Based On filter */ glBindTexture( GL_TEXTURE_2D, horiztexture[1] ); glBegin(GL_QUADS); glTexCoord2f( 0.0, 1.0 ); glVertex3f( 3.0, 0.0, -3.0 ); glTexCoord2f( 0.0, 0.0 ); glVertex3f( 3.0, 4.0, -3.0 ); glTexCoord2f( 1.0, 0.0 ); glVertex3f( 3.0, 4.0, 3.0 ); glTexCoord2f( 1.0, 1.0 ); glVertex3f( 3.0, 0.0, 3.0 ); glTexCoord2f( 1.0, 1.0 ); glVertex3f( -3.0, 0.0, -3.0 ); glTexCoord2f( 1.0, 0.0 ); glVertex3f( -3.0, 4.0, -3.0 ); glTexCoord2f( 0.0, 0.0 ); glVertex3f( -3.0, 4.0, 3.0 ); glTexCoord2f( 0.0, 1.0 ); glVertex3f( -3.0, 0.0, 3.0 ); glTexCoord2f( 1.0, 1.0 ); glVertex3f( 3.0, 0.0, 3.0 ); glTexCoord2f( 0.0, 1.0 ); glVertex3f( -3.0, 0.0, 3.0 ); glTexCoord2f( 0.0, 0.0 ); glVertex3f( -3.0, 4.0, 3.0 ); glTexCoord2f( 1.0, 0.0 ); glVertex3f( 3.0, 4.0, 3.0 ); glEnd(); /* Select A Texture Based On filter */ glBindTexture( GL_TEXTURE_2D, texture[filter] ); /* Process Each Triangle */ for ( loop_m = 0; loop_m < sector1.numTriangles; loop_m++ ) { /* Start Drawing Triangles */ glBegin(GL_TRIANGLES); /* Normal Pointing Forward */ glNormal3f( 0.0f, 0.0f, 1.0f); /* X Vertex Of 1st Point */ x_m = sector1.triangle[loop_m].vertex[0].x; /* Y Vertex Of 1st Point */ y_m = sector1.triangle[loop_m].vertex[0].y; /* Z Vertex Of 1st Point */ z_m = sector1.triangle[loop_m].vertex[0].z; /* U Texture Coord Of 1st Point */ u_m = sector1.triangle[loop_m].vertex[0].u; /* V Texture Coord Of 1st Point */ v_m = sector1.triangle[loop_m].vertex[0].v; /* Set The TexCoord And Vertice */ glTexCoord2f( u_m, v_m ); glVertex3f( x_m, y_m, z_m ); /* X Vertex Of 2nd Point */ x_m = sector1.triangle[loop_m].vertex[1].x; /* Y Vertex Of 2nd Point */ y_m = sector1.triangle[loop_m].vertex[1].y; /* Z Vertex Of 2nd Point */ z_m = sector1.triangle[loop_m].vertex[1].z; /* U Texture Coord Of 2nd Point */ u_m = sector1.triangle[loop_m].vertex[1].u; /* V Texture Coord Of 2nd Point */ v_m = sector1.triangle[loop_m].vertex[1].v; /* Set The TexCoord And Vertice */ glTexCoord2f( u_m, v_m ); glVertex3f( x_m, y_m, z_m ); /* X Vertex Of 3rd Point */ x_m = sector1.triangle[loop_m].vertex[2].x; /* Y Vertex Of 3rd Point */ y_m = sector1.triangle[loop_m].vertex[2].y; /* Z Vertex Of 3rd Point */ z_m = sector1.triangle[loop_m].vertex[2].z; /* Texture Coord Of 3rd Point */ u_m = sector1.triangle[loop_m].vertex[2].u; /* V Texture Coord Of 3rd Point */ v_m = sector1.triangle[loop_m].vertex[2].v; /* Set The TexCoord And Vertice */ glTexCoord2f( u_m, v_m ); glVertex3f( x_m, y_m, z_m ); glEnd( ); } glEnable(GL_BLEND); glDisable(GL_DEPTH_TEST); glBlendFunc(GL_DST_COLOR,GL_ZERO); glBindTexture( GL_TEXTURE_2D, pngtexture[0] ); glBegin(GL_QUADS); glTexCoord2f( 0.0, 0.0 ); glVertex3f( xmir-0.02*cos(sceneroty*piover180), ymir, zmir-0.02*sin(sceneroty*piover180) ); glTexCoord2f( 1.0, 0.0 ); glVertex3f( xmir+0.02*cos(sceneroty*piover180), ymir, zmir+0.02*sin(sceneroty*piover180) ); glTexCoord2f( 1.0, 1.0 ); glVertex3f( xmir+0.02*cos(sceneroty*piover180), ymir + 0.025, zmir+0.02*sin(sceneroty*piover180) ); glTexCoord2f( 0.0, 1.0 ); glVertex3f( xmir-0.02*cos(sceneroty*piover180), ymir + 0.025, zmir-0.02*sin(sceneroty*piover180) ); glEnd(); glBlendFunc(GL_DST_COLOR,GL_ZERO); glBindTexture( GL_TEXTURE_2D, usatexture[1] ); glBegin(GL_QUADS); glTexCoord2f( 0.0, 0.0 ); glVertex3f( -0.062*cos(sceneroty*piover180), 0.0, -2-0.062*sin(sceneroty*piover180) ); glTexCoord2f( 1.0, 0.0 ); glVertex3f( 0.062*cos(sceneroty*piover180), 0.0, -2+0.062*sin(sceneroty*piover180) ); glTexCoord2f( 1.0, 1.0 ); glVertex3f( 0.062*cos(sceneroty*piover180), 0.35, -2+0.062*sin(sceneroty*piover180) ); glTexCoord2f( 0.0, 1.0 ); glVertex3f( -0.062*cos(sceneroty*piover180), 0.35, -2-0.062*sin(sceneroty*piover180) ); glEnd(); glBlendFunc(GL_ONE,GL_ONE); glBindTexture( GL_TEXTURE_2D, usatexture[0] ); glBegin(GL_QUADS); glTexCoord2f( 0.0, 0.0 ); glVertex3f( -0.062*cos(sceneroty*piover180), 0.0, -2-0.062*sin(sceneroty*piover180) ); glTexCoord2f( 1.0, 0.0 ); glVertex3f( 0.062*cos(sceneroty*piover180), 0.0, -2+0.062*sin(sceneroty*piover180) ); glTexCoord2f( 1.0, 1.0 ); glVertex3f( 0.062*cos(sceneroty*piover180), 0.35, -2+0.062*sin(sceneroty*piover180) ); glTexCoord2f( 0.0, 1.0 ); glVertex3f( -0.062*cos(sceneroty*piover180), 0.35, -2-0.062*sin(sceneroty*piover180) ); glEnd(); glEnable(GL_DEPTH_TEST); glDisable(GL_BLEND); TestColision( xpos, zpos, xpos + 9 * sin(sceneroty* piover180), zpos - 9 * cos(sceneroty* piover180), -0.062*cos(sceneroty*piover180), -2-0.062*sin(sceneroty*piover180) , 0.062*cos(sceneroty*piover180) ,-2+0.062*sin(sceneroty*piover180)); printf("%f %f -- %f %f ------------ %f %f -- %f %f\n", xpos, zpos, xpos + 3 * sin(sceneroty* piover180), zpos - 3 * cos(sceneroty* piover180), -0.062*cos(sceneroty*piover180), -2-0.062*sin(sceneroty*piover180) , 0.062*cos(sceneroty*piover180) ,-2+0.062*sin(sceneroty*piover180) ); /* Draw it to the screen */ SDL_GL_SwapBuffers( ); /* Gather our frames per second */ Frames++; { GLint t = SDL_GetTicks(); if (t - T0 >= 5000) { GLfloat seconds = (t - T0) / 1000.0; GLfloat fps = Frames / seconds; printf("%d frames in %g seconds = %g FPS\n", Frames, seconds, fps); T0 = t; Frames = 0; } } return( TRUE ); } int main( int argc, char **argv ) { /* Flags to pass to SDL_SetVideoMode */ int videoFlags; /* main loop variable */ int done = FALSE; /* used to collect events */ SDL_Event event; SDL_Joystick *js; /* this holds some info about our display */ const SDL_VideoInfo *videoInfo; /* whether or not the window is active */ int isActive = TRUE; /* initialize SDL */ if (SDL_Init(SDL_INIT_JOYSTICK | SDL_INIT_VIDEO) != 0) { fprintf( stderr, "Video initialization failed: %s\n", SDL_GetError( ) ); Quit( 1 ); } /* We'll use the first joystick for the demonstration. */ js = SDL_JoystickOpen(0); if (js == NULL) { printf("Unable to open joystick: %s\n", SDL_GetError()); } /* Fetch the video info */ videoInfo = SDL_GetVideoInfo( ); if ( !videoInfo ) { fprintf( stderr, "Video query failed: %s\n", SDL_GetError( ) ); Quit( 1 ); } /* the flags to pass to SDL_SetVideoMode */ videoFlags = SDL_OPENGL; /* Enable OpenGL in SDL */ videoFlags |= SDL_GL_DOUBLEBUFFER; /* Enable double buffering */ videoFlags |= SDL_HWPALETTE; /* Store the palette in hardware */ videoFlags |= SDL_RESIZABLE; /* Enable window resizing */ videoFlags |= SDL_FULLSCREEN; /* Enable window fullscreen*/ /* This checks to see if surfaces can be stored in memory */ if ( videoInfo->hw_available ) videoFlags |= SDL_HWSURFACE; else videoFlags |= SDL_SWSURFACE; /* This checks if hardware blits can be done */ if ( videoInfo->blit_hw ) videoFlags |= SDL_HWACCEL; /* Sets up OpenGL double buffering */ SDL_GL_SetAttribute( SDL_GL_DOUBLEBUFFER, 1 ); /* get a SDL surface */ surface = SDL_SetVideoMode( SCREEN_WIDTH, SCREEN_HEIGHT, SCREEN_BPP, videoFlags ); /* Verify there is a surface */ if ( !surface ) { fprintf( stderr, "Video mode set failed: %s\n", SDL_GetError( ) ); Quit( 1 ); } /* Hide the mouse pointer. */ SDL_ShowCursor(0); /* Enable key repeat */ if ( ( SDL_EnableKeyRepeat( 100, SDL_DEFAULT_REPEAT_INTERVAL ) ) ) { fprintf( stderr, "Setting keyboard repeat failed: %s\n", SDL_GetError( ) ); Quit( 1 ); } /* initialize OpenGL */ initGL( ); #ifdef SOUND /* Initialize Audio sub system */ if ( SDL_InitSubSystem( SDL_INIT_AUDIO ) == -1 ) { fprintf( stderr, "Could not initialize audio subsystem: %s\n", SDL_GetError( ) ); Quit( 1 ); } /* Open the sound device */ if ( Mix_OpenAudio( 22060, AUDIO_S16SYS, 2, 512 ) < 0 ) { fprintf( stderr, "Unable to open audio: %s\n", SDL_GetError( ) ); Quit( 1 ); } /* Load in the music */ music = Mix_LoadMUS( "data/lktheme.mod" ); #endif /* Read in the data */ SetupWorld( "data/world.txt" ); initMap(); /* resize the initial window */ resizeWindow( SCREEN_WIDTH, SCREEN_HEIGHT ); #ifdef SOUND /* Start playing the music */ Mix_PlayMusic( music, -1 ); #endif /* wait for events */ while ( !done ) { /* handle the events in the queue */ while ( SDL_PollEvent( &event ) ) { switch( event.type ) { case SDL_ACTIVEEVENT: /* Something's happend with our focus * If we lost focus or we are iconified, we * shouldn't draw the screen */ if ( event.active.gain == 0 ) isActive = FALSE; else isActive = TRUE; break; case SDL_VIDEORESIZE: /* handle resize event */ surface = SDL_SetVideoMode( event.resize.w, event.resize.h, 16, videoFlags ); if ( !surface ) { fprintf( stderr, "Could not get a surface after resize: %s\n", SDL_GetError( ) ); Quit( 1 ); } resizeWindow( event.resize.w, event.resize.h ); break; case SDL_KEYDOWN: /* handle key presses */ handleKeyPress( &event.key.keysym ); break; case SDL_QUIT: /* handle quit requests */ done = TRUE; break; /* This event is generated when an axis on an open joystick is moved. Most joysticks have two axes, X and Y (which will be reported as axes 0 and 1). */ case SDL_JOYAXISMOTION: printf("Joystick %i, axis %i movement to %i\n", event.jaxis.which, event.jaxis.axis, event.jaxis.value); if ((event.jaxis.axis == 0)&&(event.jaxis.value > 0)) {yrot -= 1.5f; gira = -1; if (yrot < 0) yrot = 359;} if ((event.jaxis.axis == 0)&&(event.jaxis.value < 0)) {yrot += 1.5f; gira = 1; if (yrot > 359) yrot = 0;} if ((event.jaxis.axis == 0)&&(event.jaxis.value == 0)) {gira = 0;} if ((event.jaxis.axis == 1)&&(event.jaxis.value > 0)) {walk = -1;} if ((event.jaxis.axis == 1)&&(event.jaxis.value < 0)) {walk = 1;} if ((event.jaxis.axis == 1)&&(event.jaxis.value == 0)) {walk = 0;} break; /* The SDL_JOYBUTTONUP and SDL_JOYBUTTONDOWN events are generated when the state of a joystick button changes. */ case SDL_JOYBUTTONUP: /* fall through to SDL_JOYBUTTONDOWN */ if (event.jbutton.button == 0) walk = 0; if (event.jbutton.button == 1) walk = 0; break; case SDL_JOYBUTTONDOWN: printf("Joystick %i button %i: %i\n", event.jbutton.which, event.jbutton.button, event.jbutton.state); if (event.jbutton.button == 0) walk = -1; if (event.jbutton.button == 1) walk = 1; if (event.jbutton.button == 7) PlaySound( "data/shot.wav", 0 ); break; default: break; } } /* draw the scene */ if ( isActive ) drawGLScene( ); } /* clean ourselves up and exit */ Quit( 0 ); return( 0 ); }