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C-/C++-Quelltext

#include <SDL2/SDL.h>
#include <SDL2/SDL_image.h>

#define __USE_C99_MATH
#include <stdbool.h>

SDL_Surface* screen =NULL;
SDL_Surface* window = NULL;
SDL_Surface* Background = NULL;
SDL_Surface* Cursor = NULL;

int main(int argc, char** argv)
{
  SDL_DisplayMode mode;
  SDL_Init(SDL_INIT_VIDEO);
  SDL_GetDesktopDisplayMode(0, &mode);

 SDL_Window * window = SDL_CreateWindow("SDL Example",
                                         SDL_WINDOWPOS_UNDEFINED,
                                         SDL_WINDOWPOS_UNDEFINED,
                                         mode.w, mode.h,
                                         SDL_WINDOW_SHOWN );

  screen = SDL_GetWindowSurface(window);

  Background = SDL_LoadBMP("data/background.bmp");
  Cursor = IMG_Load("data/cursor.png");

 SDL_Rect cursorPosition;
 cursorPosition.x = 100;
 cursorPosition.y = 300;


 SDL_Event event;
 bool quit;

 //GAME LOOP
 while (quit == false)
 {
    while (SDL_PollEvent(&event))
 {
  switch(event.type)
  {
   case SDL_QUIT:
   quit= true;
   break;
  }

   if(event.type == SDL_MOUSEMOTION)
   {
    cursorPosition.x = event.motion.x;
    cursorPosition.y = event.motion.y;
   }


     if (event.type == SDL_WINDOWEVENT &&
      event.window.event == SDL_WINDOWEVENT_RESIZED)
     {
       screen =  SDL_GetWindowSurface(window);
       SDL_UpdateWindowSurface(window);
      }
 }

  SDL_BlitSurface(Background, NULL, screen, NULL);
  SDL_BlitSurface(Cursor, NULL, screen,&cursorPosition);

  SDL_UpdateWindowSurface(window);
 }

 SDL_DestroyWindow(window);
 SDL_FreeSurface(screen);

 SDL_FreeSurface(Background);
 SDL_FreeSurface(Cursor);

 IMG_Quit();
 SDL_Quit();
 return 0;
}