围绕已被屏蔽用户的配对
Nakama的配对程序可以将用户聚集在一起，进行应用程序中可用的任何类型的社交游戏或交互。与任何社区一样，有些用户会相处融洽，有些则不会。
当一位用户屏蔽了另一位用户，理想情况下，配对程序不应将这两位用户置于同一个比赛、群组或其他此类社交功能中。
本指南介绍了一种方法，您可以使用该方法避免用户匹配其已经屏蔽的其他用户。这包括：
- 查找每个用户已屏蔽用户的列表
- 在各自配对程序属性中使用该列表
- 在配对程序查询中添加子句，避免匹配到已被屏蔽的用户
列出被屏蔽用户
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使用列出好友API，仅筛选处于被屏蔽状态的用户，获得该玩家已屏蔽的所有用户的完整列表。
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| var blockedState = 3;
var blockedFriendsResult = await client.ListFriendsAsync(session, blockedState, 100, null);
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| const blockedState = 3;
const blockedFriendsResult = await client.listFriends(session, null, blockedState);
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| int blockedState = 3;
auto successCallback = [](NFriendsPtr blockedFriendsResult)
{
// Blocked friends available as blockedFriendsResult->friends
};
client->listFriends(session, {}, blockedState, {}, successCallback);
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| var blocked_state = 3
var blocked_friends_result : NakamaAPI.ApiFriendList = yield(client.list_friends_async(session, blocked_state), "completed")
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您需要将被屏蔽的用户ID的完整列表写入一个用空格分隔的字符串（例如user-id-1 user-id-2 user-id-3），该字符串将成为用户的配对程序属性的一部分。
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| var blockedFriendIds = string.Join(" ", blockedFriendsResult.Friends.Select(x => x.User.Id));
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Client
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| const blockedFriendIds = blockedFriendsResult.friends.map(friend => friend.userId).join(' ');
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| auto successCallback = [](NFriendListPtr blockedFriendsResult)
{
string blockedFriendIds = "";
for (NFriend friend : blockedFriendsResult->friends) {
blockedFriendIdsString += friend.user.id + " ";
}
};
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| var blocked_friend_ids = ""
for friend in blocked_friends_result.friends:
blocked_friend_ids += friend.user.id + " "
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配对程序条件
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每位用户的配对程序标准现在将包括一个附加的属性，该属性使用上面创建的被屏蔽用户连接字符串的键blocked 。
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| var stringProperties = new Dictionary<string, string>
{
{ "blocked", blockedFriendIds }
};
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| const stringProperties = {
"blocked": blockedFriendIds
};
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| NStringMap stringProperties;
stringProperties.emplace("blocked", blockedFriendIds);
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Client
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| var string_properties = { "blocked", blocked_friend_ids }
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除了新属性之外，每个用户的配对程序查询还将在-properties.blocked:/.my\-user\-id./表单中包含一个新的must not子句。
通过使用玩家自己的ID，此子句确保搜索的玩家不会出现在任何潜在匹配的屏蔽列表中 - 即该玩家不会与任何已屏蔽他们的玩家匹配，并且最终任何玩家都不会匹配到他们已屏蔽的任何人。
完整的配对程序请求如下所示：
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| var blockedState = 3;
var blockedFriendsResult = await client.ListFriendsAsync(session, blockedState, 100, null);
var blockedFriendIds = string.Join(" ", blockedFriendsResult.Friends.Select(x => x.User.Id));]
var stringProperties = new Dictionary<string, string>
{
{ "blocked", blockedFriendIds }
};
var ticket =
await socket.AddMatchmakerAsync($"-properties.blocked:/.{session.UserId}./", 2, 4, stringProperties, null);
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| const blockedState = 3;
const blockedFriendsResult = await client.listFriends(session, null, blockedState);
const blockedFriendIds = blockedFriendsResult.friends.map(friend => friend.userId).join(' ');
const stringProperties = {
"blocked": blockedFriendIds
};
const ticket = await socket.addMatchmaker(`-properties.blocked:/.${session.userId}./`, 2, 4, stringProperties, null);
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| int blockedState = 3;
auto successCallback = [](NFriendsPtr blockedFriendsResult)
{
string blockedFriendIds = "";
for (NFriend friend : blockedFriendsResult->friends) {
blockedFriendIdsString += friend.user.id + " ";
}
NStringMap stringProperties;
NStringDoubleMap numericProperties;
stringProperties.emplace("blocked", blockedFriendIds);
string query = "-properties.blocked:/." + blockedFriendIds + "./";
rtClient->addMatchmaker(2, 4, query, stringProperties, numericProperties, matchmakerSuccessCallback);
};
client->listFriends(session, {}, blockedState, {}, successCallback);
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| var blocked_state = 3
var blocked_friends_result : NakamaAPI.ApiFriendList = yield(client.list_friends_async(session, blocked_state), "completed")
var blocked_friend_ids = ""
for friend in blocked_friends_result.friends:
blocked_friend_ids += friend.user.id + " "
var string_properties = { "blocked", blocked_friend_ids }
var query = "-properties.blocked:/.%s./" % [blocked_friend_ids]
var ticket : NakamaRTAPI.MatchmakerTicket = yield(socket.add_matchmaker_async(query, 2, 4, string_properties, null), "completed")
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