public void AddForeground(Vector3Int position, IOverlay overlay)
{
if (overlayTiles.TryGetValue(position, out OverlayTile overlayTile))
{
overlayTile.overlays.Add(overlay);
UpdateOverlays(overlayTile.overlays);
}
else
{
overlayTiles.Add(position,
new OverlayTile(overlay, backgroundTilemap.GetTile(position)));
overlay.SetDisplay(true);
//remove it from the tilemap
backgroundTilemap.SetTile(position, null);
}
}