#include "../cppbas.inc" #include #include #include DIM AS CHAR string[128]; // String used by txtIt & SDL_ttf // Conver Variable Argument into a string SUB txtIt(const char *pStr , ...) BEGIN DIM AS va_list valist; // Type to hold information about variable arguments va_start(valist, pStr); // Initialize a variable argument list vsprintf( string , pStr , valist ); // Print formatted variable argument list to string va_end(valist); // This macro should be executed before the function ENDSUB DIM AS INT FPS = 50; // Assign a FPS DIM AS INT NextTick , interval ; // Used by FPS_Fn // Initialize FPS_Fn( ) SUB FPS_Initialize() BEGIN NextTick = 0 ; interval = 1 * 1000 / FPS ; ENDSUB // Frame Per Second Function , put this in a loop SUB FPS_Fn() BEGIN IF ( NextTick > SDL_GetTicks( ) ) THEN SDL_Delay( NextTick - SDL_GetTicks( ) ); ENDIF NextTick = SDL_GetTicks( ) + interval ; ENDSUB // This function load a image file to a surface // Set bCKey with colorkey (R,G,B) to clear a color on the image // Set alpha value FOR transparency 0(No transparent) ~ 255(Ivisible) FUNCTION SDL_Surface *ImgLoader(CSTRING file, BOOL bCKey, INT r, INT g, INT b, INT alpha) BEGIN SDL_Surface *pic; pic = IMG_Load(file.c_str()); // From SDL_image.h , load the image to pic IF (pic==NULL) THEN fprintf(stderr,"Missing image %s : %s\n",file.c_str(),IMG_GetError()); ENDIF IF ( bCKey ) THEN SDL_SetColorKey(pic,SDL_SRCCOLORKEY|SDL_RLEACCEL,SDL_MapRGB(pic->format,r,g,b)); ENDIF IF (alpha) THEN SDL_SetAlpha(pic, SDL_SRCALPHA|SDL_RLEACCEL , 255 - alpha); ENDIF pic = SDL_DisplayFormat(pic); RETURN (pic); ENDFUNCTION // Load a normal picture into a surface FUNCTION SDL_Surface *ImgLoader(CSTRING file) BEGIN RETURN ImgLoader(file.c_str(),1,0,0,0,0) ; ENDFUNCTION // Load a pic & set the transparent color to (255,255,255) , no alpha FUNCTION SDL_Surface *ImgLoader(CSTRING file,bool bCKey) BEGIN RETURN ImgLoader(file.c_str(),1,255,255,255,0) ; ENDFUNCTION MAIN DIM AS TTF_Font *font; // Declare a SDL_ttf font : font TTF_Init(); // Initilize SDL_ttf font = TTF_OpenFont("./font/cour.ttf",16); // Open a font & set the font size DIM AS SDL_Surface *imgTxt ; // Store image of the text FOR blit DIM AS SDL_Rect txtRect ; // Store (x,y) of text FOR blit DIM AS SDL_Color fColor , fColorW , fColorR , fColorG ; // Font color (R,G,B) txtRect.x = 10; txtRect.y = 250; fColor.r = fColor.g = fColor.b = 245; // Set font to white color fColorW.r = 250; fColorW.g = 250; fColorW.b = 250; fColorR.r = 250; fColorR.g = 25; fColorR.b = 25; fColorG.r = 25; fColorG.g = 250; fColorG.b = 25; DIM AS SDL_Event event; // FOR keyboard event DIM AS BOOL bRun = 1; // The SELECT of WHILE loop // bKeyXXX Present the state of keyboard DIM AS BOOL bKeyUP = 0 , bKeyDOWN = 0 , bKeyLEFT = 0 , bKeyRIGHT = 0; DIM AS INT aTick = 0; DIM AS SHORT dx = 2; // The movement value when moving the object anim[ ] SDL_Surface *screen ; ENUM BEGIN pic1, pic_No ENDENUM DIM AS SDL_Surface *anim[pic_No]; DIM AS SDL_Rect animRect ; // The coordinate of anim[ ] animRect.x = 160 ; animRect.y = 160 ; atexit(SDL_Quit); IF( SDL_Init(SDL_INIT_VIDEO) < 0 ) EXIT(1); SDL_WM_SetCaption("SDL Window - Multiplication Table", NULL); screen = SDL_SetVideoMode( 400 , 300 , 32 , SDL_DOUBLEBUF|SDL_HWSURFACE|SDL_ANYFORMAT); anim[0] = ImgLoader("./anim/icon.gif"); FPS_Initialize( ); DIM AS INT xi=1 , yi=1 ; // Use FOR display picture WHILE (bRun) BEGIN aTick++; SDL_FillRect(screen , NULL , 0x221122); IF ( aTick%6 == 1) xi++; IF ( xi > 9 ) THEN xi = 1; yi++; ENDIF IF ( yi > 9 ) yi = 1; FOR(INT i=0 TO i < yi STEP i++ ) BEGIN animRect.x = 10 + i * 40 ; animRect.y = 200; SDL_BlitSurface( anim[0] , NULL , screen , &animRect ); END FOR (INT i=0 TO i < xi STEP i++ ) BEGIN animRect.x = 10 + i * 40 ; animRect.y = 240; SDL_BlitSurface( anim[0] , NULL , screen , &animRect ); END // A Multiplication Table FOR (INT i = 1 TO i <= 9 STEP i++) BEGIN FOR( INT j = 1 TO j <= 9 STEP j++) BEGIN txtIt("%2d" , i*j ); fColor = fColorW; // Default is white color // IF ( i==1 OR j==1 ) THEN IF ( i==xi OR j==yi ) THEN fColor = fColorG; IF ( i==1 AND j==yi ) fColor = fColorG; IF( j==1 AND i==xi ) fColor = fColorG; IF( i == xi AND j == yi ) fColor = fColorR; imgTxt = TTF_RenderText_Solid( font , string , fColor ); txtRect.x = 30 + i*30 ; txtRect.y = 30 + j*15 ; SDL_BlitSurface( imgTxt , NULL , screen , &txtRect ); END // FOR( INT j = 1 ; j <= 9 ; j++) { END END // FOR(INT i = 1 ; i <= 9 ; i++) { END txtIt("%1d %1d %1d %1d", bKeyUP , bKeyDOWN , bKeyLEFT , bKeyRIGHT); fColor = fColorW; // Default is white color imgTxt = TTF_RenderText_Solid( font , string , fColor ); SDL_BlitSurface( imgTxt , NULL , screen , NULL ); SDL_Flip(screen); FPS_Fn(); WHILE ( SDL_PollEvent( &event ) ) BEGIN SELECT ( event.type ){ CASE SDL_KEYDOWN: SELECT ( event.key.keysym.sym ){ CASE SDLK_UP: bKeyUP = 1; ENDCASE CASE SDLK_DOWN: bKeyDOWN = 1; ENDCASE CASE SDLK_LEFT: bKeyLEFT = 1; ENDCASE CASE SDLK_RIGHT: bKeyRIGHT = 1; ENDCASE CASE SDLK_ESCAPE: bRun = 0; ENDCASE CASE_ELSE: ENDCASE ENDSELECT // SELECT ( event.key.keysym.sym ){ END // CASE SDL_KEYDOWN: END CASE SDL_KEYUP: SELECT ( event.key.keysym.sym ){ CASE SDLK_UP: bKeyUP = 0; ENDCASE CASE SDLK_DOWN: bKeyDOWN = 0; ENDCASE CASE SDLK_LEFT: bKeyLEFT = 0; ENDCASE CASE SDLK_RIGHT: bKeyRIGHT = 0; ENDCASE CASE_ELSE: ENDCASE ENDSELECT // SELECT ( event.key.keysym.sym ){ END // CASE SDL_KEYUP: END CASE SDL_QUIT: bRun = 0; ENDCASE CASE_ELSE: ENDCASE ENDSELECT // SELECT ( event.type ){ END WEND // WHILE ( SDLK_PollEvent( &event ) ){ END // Deal with key states IF (bKeyUP) animRect.y = animRect.y - dx; IF (bKeyDOWN) animRect.y = animRect.y + dx; IF (bKeyLEFT) animRect.x = animRect.x - dx; IF (bKeyRIGHT) animRect.x = animRect.x + dx; WEND // WHILE (bRun) { END RETURN 0; END