def calculate_score(fan: int, base_score: int, is_self_draw: bool) -> dict:
    """
    根据成都麻将规则计算得分（不区分庄家和闲家）。

    参数:
    - fan: 总番数。
    - base_score: 底分。
    - is_self_draw: 是否为自摸。

    返回:
    - scores: 字典，包含赢家得分和输家扣分。
    """
    # 计算总分
    multiplier = 2 ** fan  # 根据番数计算倍率
    total_score = base_score * multiplier

    if is_self_draw:
        # 自摸：三家平摊分数
        per_loser_score = -total_score
        winner_score = total_score * 3  # 总赢家得分
        return {
            "winner": winner_score,
            "loser": [per_loser_score] * 3
        }
    else:
        # 点炮：点炮者独付
        loser_score = -total_score
        winner_score = total_score
        return {
            "winner": winner_score,
            "loser": [loser_score, 0, 0]
        }