switch(event.key.keysym.sym){ 
                    case SDLK_UP: 
                        if(map[player.x / TILESIZE][player.y / TILESIZE - 1] == 0) 
                            player.y = player.y - player.p_speed; 
                        break; 
                    case SDLK_DOWN: 
                        if(map[player.x / TILESIZE][player.y / TILESIZE + 1] == 0) 
                            player.y = player.y + player.p_speed; 
                        break; 
                    case SDLK_RIGHT: 
                        if(map[player.x / TILESIZE + 1][player.y / TILESIZE ] == 0) 
                            player.x = player.x + player.p_speed; 
                        break; 
                    case SDLK_LEFT: 
                        if(map[player.x / TILESIZE - 1][player.y / TILESIZE ] == 0) 
                            player.x = player.x - player.p_speed; 
                        break; 
                    default: 
                        break; 
                }

int Write_Text(int x, int y, char *string){ 

    SFont_Font* Font; 

   Font = SFont_InitFont(IMG_Load("font\24P_Copperplate_Blue.png")); 
   if(!Font) { 
      fprintf(stderr, "An error occured while loading the font."); 
      exit(1); 
   } 

   // a simple text blit to (0/0) 
   SFont_Write (screen, Font, x,y,string); 

   // Update the screen 
   SDL_UpdateRect(screen, 0, 0, 0, 0); 
   // Let the user time to look at the font 

   // Don't forget to free our font 
   SFont_FreeFont(Font); 
}