#include "room_object.h"

namespace yaze {
namespace app {
namespace zelda3 {
namespace dungeon {

void RoomObject::DrawTile(Tile t, int xx, int yy,
                          std::vector<uint8_t>& current_gfx16,
                          std::vector<uint8_t>& tiles_bg1_buffer,
                          std::vector<uint8_t>& tiles_bg2_buffer,
                          ushort tileUnder) {
  bool preview = false;
  if (width < xx + 8) {
    width = xx + 8;
  }
  if (height < yy + 8) {
    height = yy + 8;
  }
  if (preview) {
    if (xx < 57 && yy < 57 && xx >= 0 && yy >= 0) {
      gfx::TileInfo ti;  // t.GetTileInfo();
      for (auto yl = 0; yl < 8; yl++) {
        for (auto xl = 0; xl < 4; xl++) {
          int mx = xl;
          int my = yl;
          uint8_t r = 0;

          if (ti.horizontal_mirror_) {
            mx = 3 - xl;
            r = 1;
          }
          if (ti.vertical_mirror_) {
            my = 7 - yl;
          }

          // Formula information to get tile index position in the array.
          //((ID / nbrofXtiles) * (imgwidth/2) + (ID - ((ID/16)*16) ))
          int tx =
              ((ti.id_ / 16) * 512) + ((ti.id_ - ((ti.id_ / 16) * 16)) * 4);
          auto pixel = current_gfx16[tx + (yl * 64) + xl];
          // nx,ny = object position, xx,yy = tile position, xl,yl = pixel
          // position

          int index =
              ((xx / 8) * 8) + ((yy / 8) * 512) + ((mx * 2) + (my * 64));
          preview_object_data_[index + r ^ 1] =
              (uint8_t)((pixel & 0x0F) + ti.palette_ * 16);
          preview_object_data_[index + r] =
              (uint8_t)(((pixel >> 4) & 0x0F) + ti.palette_ * 16);
        }
      }
    }
  } else {
    if (((xx / 8) + nx + offsetX) + ((ny + offsetY + (yy / 8)) * 64) < 4096 &&
        ((xx / 8) + nx + offsetX) + ((ny + offsetY + (yy / 8)) * 64) >= 0) {
      ushort td = 0;  // gfx::GetTilesInfo();  // TODO t.GetTileInfo()

      // collisionPoint.Add(
      //     new Point(xx + ((nx + offsetX) * 8), yy + ((ny + +offsetY) * 8)));

      if (Layer == 0 || (uint8_t)Layer == 2 || allBgs) {
        if (tileUnder == tiles_bg1_buffer[((xx / 8) + offsetX + nx) +
                                          ((ny + offsetY + (yy / 8)) * 64)]) {
          return;
        }

        tiles_bg1_buffer[((xx / 8) + offsetX + nx) +
                         ((ny + offsetY + (yy / 8)) * 64)] = td;
      }

      if ((uint8_t)Layer == 1 || allBgs) {
        if (tileUnder == tiles_bg2_buffer[((xx / 8) + nx + offsetX) +
                                          ((ny + offsetY + (yy / 8)) * 64)]) {
          return;
        }

        tiles_bg2_buffer[((xx / 8) + nx) + offsetX +
                         ((ny + offsetY + (yy / 8)) * 64)] = td;
      }
    }
  }
}

}  // namespace dungeon
}  // namespace zelda3
}  // namespace app
}  // namespace yaze