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