Redis在游戏开发中的作用及应用案例

import redis

# 连接Redis服务器
r = redis.Redis(host='localhost', port=6379, db=0)

# 将玩家分数存储到有序集合中
def update_score(player_id, score):
    r.zadd('rank', {player_id: score})

# 获取排行榜前N名玩家
def get_top_players(n):
    return r.zrevrange('rank', 0, n-1, withscores=True)

import redis

# 连接Redis服务器
r = redis.Redis(host='localhost', port=6379, db=0)

# 用户发送聊天消息
def send_message(user_id, message):
    r.publish('chat', f'{user_id}: {message}')

# 用户接收聊天消息
def receive_message():
    pubsub = r.pubsub()
    pubsub.subscribe('chat')

    for message in pubsub.listen():
        print(message['data'])

import redis
import time

# 连接Redis服务器
r = redis.Redis(host='localhost', port=6379, db=0)

# 获取锁
def acquire_lock(lock_key, timeout):
    while True:
        result = r.setnx(lock_key, time.time())
        if result == 1 or (time.time() - r.get(lock_key)) > timeout:
            return True
        time.sleep(0.1)

# 释放锁
def release_lock(lock_key):
    r.delete(lock_key)