Unity 3d PhotonEngine 其他玩家如何获取masterclient生成的数据

Question

您好，我需要有关使用光子的在线 2 人游戏的帮助。每个玩家都会收到一个生成的票号，玩家 1 将客串 player2 的票号，而 player2 将客串 player1 的票号。

这是主客户端生成票证的脚本。当玩家 2 加入房间时，他将从玩家 1（主客户端）生成的票中获得票。我创建了一个附有照片视图的游戏对象和此处的脚本

void Start()
{
    if (PhotonNetwork.IsMasterClient)
    {
        player1ticket = UnityEngine.Random.Range(1000, 5000);
        player2ticket = UnityEngine.Random.Range(1000, 5000);
    }
    getTicket = true;
}

// Update is called once per frame
void Update()
{
    if (getTicket)
    {
        if (PhotonNetwork.IsMasterClient)
        {
            myTicket = player1ticket;
        }
        else
        {
            myTicket = player2ticket;
        }
        getTicket = false;
    }
}

但是玩游戏的时候玩家2没有票号

Answer 1

首先，您知道两者可能会获得相同的票号 - 不太可能但有可能。在这种情况下，您可能需要重复第二次随机

player1ticket = UnityEngine.Random.Range(1000, 5000);
do
{
    player2ticket = UnityEngine.Random.Range(1000, 5000); 
} 
while(player2ticket == player1ticket);   

那么你只在主服务器上生成值。所以客户端上的getTicket 永远不是true。

即使客户端也没有player2ticket 值。

也没有必要/感觉在更新中的每一帧都分配它们。

---

我宁愿使用 自定义房间属性 并在主服务器上使用 Room.SetCustomProperties，这将在所有客户端上触发 OnRoomPropertiesUpdate(Hashtable。此呼叫也会在客户加入房间后触发一次，因此您可以确保新连接的客户不会错过它。

void Start()
{
    if (PhotonNetwork.IsMasterClient)
    {
        player1ticket = UnityEngine.Random.Range(1000, 5000);
        player2ticket = UnityEngine.Random.Range(1000, 5000);

        // You are master so already get your ticket
        myTicket = player1ticket;

        // Then simply push the other ticket(s) into the room properties
        Hashtable properties = PhotonNetwork.room.customProperties; 
        properties["ticket2"] =  player2ticket);  

        // This will store the value in the current room
        // and triggers OnRoomPropertiesUpdate on all already connected clients
        PhotonNetwork.room.SetCustomProperties(properties);
    }
}

// This will be called
// - as soon as you entered a room
// - whenever someone writes into the room properties
public override void OnRoomPropertiesUpdate(Hashtable propertiesThatChanged)
{
    // Not sure about the exact API right now, it's not in their docs
    // it's either ContainsKey, HasKey or something similar ..maybe even TryGetValue works
    if(!propertiesThatChanged.ContainsKey("ticket2")) return;

    if(!PhotonNetwork.IsMasterClient)
    {
        myTicket = (int) PhotonNetwork.room.customProperties["ticket2"];
    }
}