public void Purge(IOutputGenerator outGen, bool main = true, bool draft = true)
{
foreach (TerrainTile tile in tiles.Tiles())
{
if (tile.main?.data != null)
{
outGen.Purge(tile.main.data, tile.main.terrain);
}
if (tile.draft?.data != null)
{
outGen.Purge(tile.draft.data, tile.draft.terrain);
}
}
}