public void Register(SpriteBatchType type, Vector2 position, Vector2i tile, bool flip_u)
{
Register( type, position, tile, flip_u, Vector2.One);
}
public void Register(SpriteBatchType type, Vector2 position, Vector2i tile, bool flip_u, Vector2 scale)
{
if(SpriteItemLists[(int)type]==null) {
SpriteItemLists[(int)type] = new List<SpriteItem>();
}
var list = SpriteItemLists[(int)type];
var item = new SpriteItem();
item.position = position;
item.tile = tile;
item.flip_u = flip_u;
item.scale = scale;
list.Add(item);
}