Kan ikke se hvorfor det ikke virker.

Kode 

/*****************************
Includes / Defines
*****************************/
#include <stdio.h>
#include <stdlib.h>
#include <SDL/SDL.h>
#include "map.h"
#define MAP_SIZEX 10
#define MAP_SIZEY 10
/*****************************
Prototypes
*****************************/
void DrawIMG(SDL_Surface *img, int x, int y); // Draw an BMP to the screen
int InitImages(); // Init the surfaces to store bmp's
void DrawScene(SDL_Surface *screen); // Draw everthing to the screen
void DrawMap(SDL_Surface *screen); // Draw the map to the screen
/****************************
Surfaces
****************************/
SDL_Surface *Tile[2];
SDL_Surface *screen;
/****************************
DrawIMG()
****************************/

void DrawIMG(SDL_Surface *img, int x, int y)
{
  SDL_Rect dest;
  dest.x = x;
  dest.y = y;
  SDL_BlitSurface(img, NULL, screen, &dest);
}
/*****************************
Init Surfaces (load bitmaps)
*****************************/
int InitImages()
{
  Tile[0] = SDL_LoadBMP("gfx/t0.bmp");//Tile 0 (Grass)
  Tile[1] = SDL_LoadBMP("gfx/t1.bmp");//Tile 1 (Dirt)
    return 0;
}
/*****************************
Draw Map
*****************************/
void DrawMap(SDL_Surface *screen)
{
  int tile;
  int xcount;
  int ycount;
  int xpos;
  int ypos;
    for (int y = 0; y < MAP_SIZEY; y++)
    {
    for (int x = 0; x < MAP_SIZEX; x++)
    {
         tile = map[y][x];
         xcount = xcount + 1;
         //calc position
         xpos = xcount * 25;
         ypos = ycount * 25;
         DrawIMG(Tile[tile], xpos, ypos );
    }
    }
}
/*****************************
Draw Scene
*****************************/
void DrawScene(SDL_Surface *screen)
{
     SDL_FillRect( screen, NULL, 0x000000 );
     DrawMap(screen);

  SDL_Flip(screen);
}
/*****************************
Main
*****************************/
int main(int argc, char *argv[])
{

  if ( SDL_Init(SDL_INIT_AUDIO|SDL_INIT_VIDEO) < 0 )
  {
    printf("Unable to init SDL: %s\\n", SDL_GetError());
    exit(1);
  }
  atexit(SDL_Quit);

  screen=SDL_SetVideoMode(640,480,32,SDL_HWSURFACE|SDL_DOUBLEBUF);
  if ( screen == NULL )
  {
    printf("Unable to set 640x480 video: %s\\n", SDL_GetError());
    exit(1);
  }
  int done=0;
  // Thing that shall be done BEFORE entering main loop goes here:
     InitImages();      
           

  while(done == 0)
  {
    SDL_Event event;

    while ( SDL_PollEvent(&event) )
    {
      if ( event.type == SDL_QUIT )  {  done = 1;  }

      if ( event.type == SDL_KEYDOWN )
      {
        if ( event.key.keysym.sym == SDLK_ESCAPE ) { done = 1; }
      }
    }

    DrawScene(screen);
  }

  return 0;
}

Kode 

void DrawMap(SDL_Surface *screen)
{
  int tile;
  int xcount;
  int ycount;
  int xpos;
  int ypos;
    for (int y = 0; y < MAP_SIZEY; y++)
    {
    for (int x = 0; x < MAP_SIZEX; x++)
    {
         tile = map[y][x];
         xcount = xcount + 1;
         //calc position
         xpos = xcount * 25;
         ypos = ycount * 25;
         DrawIMG(Tile[tile], xpos, ypos );
    }
    }
}