spieleprogrammierer.de - Forum und Wiki zur Spieleprogrammierung und Spieleentwicklung

C-/C++-Quelltext

#include <iostream>
#include <SDL.h>
#include <SDL_ttf.h>

using std::cerr;
using std::endl;

int DrawText(SDL_Surface* screen, TTF_Font* font, const char* text)
{
    if (screen == NULL)
    {
        cerr << "screen gleich NULL" << endl; 
    }

    SDL_Color color = {0,0,0};
    SDL_Surface *text_surface;

    text_surface = TTF_RenderText_Solid(font, text, color);
    if (text_surface != NULL)
    {
        SDL_BlitSurface(text_surface, NULL, screen, NULL);
        SDL_FreeSurface(text_surface);                          // An diesem Punkt bricht das Programm ab
        return 1;
    }
    else
    {
        // report error
        return 0;
    }
}

int main(int argc, char* args[])
{
   if (SDL_Init(SDL_INIT_VIDEO) != 0)
   {
      cerr << "SDL_Init() Failed: " <<
      SDL_GetError() << endl;
      system ("pause");
      exit(1);
   }

   SDL_Surface* display;
   display = SDL_SetVideoMode(800, 800, 32, SDL_HWSURFACE | SDL_DOUBLEBUF);

   if (display == NULL)
   {
      cerr << "SDL_SetVideoMode() Failed: " <<        
      SDL_GetError() << endl;
      system ("pause");
      exit(1);
   }

   SDL_WM_SetCaption("SDL Tutorial", "SDL Tutorial");

   if (TTF_Init() != 0)
   {
      cerr << "TTF_Init() Failed: " << TTF_GetError() << endl;
      SDL_Quit();
      system ("pause");
      exit(1);
   }

   TTF_Font *font;
   font = TTF_OpenFont("Data/arial.ttf", 24);
   if (font == NULL)
   {
      cerr << "TTF_OpenFont() Failed: " << TTF_GetError() << endl;
      TTF_Quit();
      SDL_Quit();
      system ("pause");
      exit(1);
   }

   SDL_Rect Rect;
   Rect.x = 20;
   Rect.y = 20;
   Rect.h = 600;
   Rect.w = 600;

    SDL_Rect eRect;
   Rect.x = 20;
   Rect.y = 20;
   Rect.h = 600;
   Rect.w = 600;

   SDL_Surface *text = NULL;
   SDL_Color text_color = {255, 255, 255};

   if (text != NULL)
   {
      cerr << "TTF_RenderText_Solid() Failed: " << TTF_GetError() << endl;
      TTF_Quit();
      SDL_Quit();
      system ("pause");
      exit(1);
   }

   int a;

   while(1)
   {
       SDL_Event event;
      if (SDL_PollEvent(&event))
      {
         if (event.type == SDL_QUIT)
         {
            break;
         }
      }
      
      if (SDL_FillRect(display, 
                       NULL,
                       SDL_MapRGB( display->format, 255,0,255))
                       != 0)
      {
         cerr << "SDL_FillRect() Failed: " << SDL_GetError() << endl;
         system ("pause");
         break;
      }

      if (display == NULL)
      {
          cerr << "fehler in der matrix :D" << endl;
          system ("pause");
      }

      a = DrawText (display, font, "Ausgabe");

      if (a==0)
      {
          cerr << "fehler" << endl;
      }

      SDL_Flip(display);
     

   }

   SDL_FreeSurface (display);
   TTF_Quit();

   SDL_Quit();
    
   return 0;    
}