Jump to content
  • Advertisement
Sign in to follow this  

2d direct draw map help rotating on y axis

This topic is 4751 days old which is more than the 365 day threshold we allow for new replies. Please post a new topic.

If you intended to correct an error in the post then please contact us.

Recommended Posts

How can i roatae my map on its y axis so all the tiles line up. I need to ratat the y axis by 45 degrees or less. How is this done? thanks.
void draw_tiles(void)
    for(Tileset.y= 0; Tileset.y < Mapy;Tileset.y++)
    {for(Tileset.x= 0; Tileset.x < Mapx; Tileset.x++)
    {  //what does this do?
      Tileset.scroll_x = Tileset.x + (Tileset.world_camerax/Tileset.Tile_size);//this allows scrolling on y axis
      Tileset.scroll_y = Tileset.y+   (Tileset.world_cameray/Tileset.Tile_size);//this allows scrolling on x axis

      Tileset.offset_x = Tileset.world_camerax % Tileset.Tile_size;       
      Tileset.offset_y = Tileset.world_cameray % Tileset.Tile_size;   
          Tileset.tiles = map[Tileset.scroll_y][Tileset.scroll_x];

    tile_src.left = ((Tileset.tiles -1)%4) *Tileset.Tile_size;
    tile_src.top =  ((Tileset.tiles -1)/4) * Tileset.Tile_size;
    tile_src.right = tile_src.left + Tileset.Tile_size;
    tile_src.bottom = tile_src.top + Tileset.Tile_size; 

dstr.left=((Tileset.x-Tileset.y)*Tileset.Tile_size/2)/*- Tileset.offset_x */+(800/2);
dstr.right=dstr.left + Tileset.Tile_size;

dstr.top= ((Tileset.y+Tileset.x)*Tileset.Tile_size/2)/*- Tileset.offset_y*/-(600/2);
dstr.bottom=dstr.top + Tileset.Tile_size;

bout<<dstr.left<<" "<<dstr.top<<" ";

//the above is for debugging use



Share this post

Link to post
Share on other sites
Sign in to follow this  

  • Advertisement

Important Information

By using GameDev.net, you agree to our community Guidelines, Terms of Use, and Privacy Policy.

Participate in the game development conversation and more when you create an account on GameDev.net!

Sign me up!