public static level_maker_action_insert_column create(level_maker lm, int x)
    {
        var lma = new level_maker_action_insert_column();

        lma.lm = lm;
        lma.x  = x;

        return(lma);
    }
    public static level_maker_action_insert_row create(level_maker lm, int y)
    {
        var lma = new level_maker_action_insert_row();

        lma.lm = lm;
        lma.y  = y;

        return(lma);
    }