discord.py (重写)如何为rps(石头，布，剪刀)游戏创建获胜条件？

import random
from discord.ext import commands

bot = commands.Bot(command_prefix='!')

@bot.command()
async def rps(ctx, player_choice):
    choices = ['石头', '剪刀', '布']
    bot_choice = random.choice(choices)

    if player_choice not in choices:
        await ctx.send("请选择石头、剪刀或布。")
        return

    if player_choice == bot_choice:
        result = "平局！"
    elif (player_choice == '石头' and bot_choice == '剪刀') or (player_choice == '剪刀' and bot_choice == '布') or (player_choice == '布' and bot_choice == '石头'):
        result = "你获胜了！"
    else:
        result = "机器人获胜了！"

    await ctx.send(f"你选择了：{player_choice}，机器人选择了：{bot_choice}。\n结果：{result}")

bot.run('YOUR_BOT_TOKEN')