void Map::SyncDraw(Gdiplus::Graphics* g)
{
Vector3i northWestTile = mMapViewport->GetNorthWestTileCoordinate();
Vector3i southEastTile = mMapViewport->GetSouthEastTileCoordinate();
Vector2i origin = mMapViewport->GetTileOrigin(northWestTile);
int xTileCount = southEastTile.GetX() - northWestTile.GetX() + 1;
int yTileCount = southEastTile.GetY() - northWestTile.GetY() + 1;
int tileCount = xTileCount*yTileCount;
int k = 0;
for(int i = 0; i<xTileCount; i++)
{
for(int j = 0; j<yTileCount; j++)
{
k++;
std::cout << k << "/" << tileCount << std::endl;
Vector3i coord(northWestTile.GetX() + i, northWestTile.GetY() + j, mMapViewport->GetZoom());
Tile* tile = new Tile(coord, mMapSource);
tile->Download(false);
Gdiplus::Image* im = tile->GetImage();
if(im)
g->DrawImage(im, origin.GetX() + i*mMapSource->GetTileSize(), origin.GetY() + j*mMapSource->GetTileSize());
delete tile;
}
}
}
Tile* Map::GetTile(const Vector3i& coord, bool download)
{
TileMap::const_iterator it = mCache.find(coord);
if(it == mCache.end())
{
Tile* tile = new Tile(coord, mMapSource);
if(!download) return tile;
tile->Download(true);
if(mCache.size() >= mCacheSize)
{
Tile* lessUsed = mCacheUsage.back();
mCache.erase(lessUsed->GetCoordinates());
mCacheUsage.pop_back();
delete lessUsed;
}
mCache.insert({coord, tile});
mCacheUsage.push_front(tile);
return tile;
}
else
{
TileList::const_iterator uit = std::find(mCacheUsage.begin(), mCacheUsage.end(), it->second);
if(uit != mCacheUsage.begin())
mCacheUsage.splice(mCacheUsage.begin(), mCacheUsage, uit, std::next(uit));
return it->second;
}
}