Question

好的，所以我正在构建一个服务器来玩战争游戏作为一项任务。我的服务器需要从两个不同的套接字获取输入，这就是我被卡住的地方。我已将我的套接字存储为键，将我的播放器存储为哈希值，但我无法在主程序中获取套接字。

我可以将哈希放在我的主程序中，但我不能只获得一个套接字以便我可以告诉我的程序从中读取。这是我的课程和我正在进行的测试：

require 'minitest/autorun'
require 'socket'
require_relative 'WarGame_Class.rb'
require_relative 'ModifiedPlayer_Class.rb'
require_relative 'DeckClass.rb'

class WarServer

    def initialize(host, port)  
        @socket_server = TCPServer.new(host, port)
        @players = [Player.new, Player.new]
        @deck = CardDeck.new
        @deck.deal_cards(@players[0].cards, @players[1].cards)
        game = WarGame.new
        @clients = {} # keys are sockets, values are players

    end

    def read_client_keys
        @clients.key[0] #does not work
    end

    def close
        @socket_server.close
    end


    def capture_input(player)   ##input client to get what they wrote
        @input = @clients.keys[0].read_nonblock(1000) # arbitrary max number of bytes

    end

    def accept_client
        #Hash here to link client to player? (or game?)
        client = @socket_server.accept
        @clients[client] = @players[@clients.size]
    #   puts "clients key 0: #{@clients.keys[0]}"
        puts
    #   puts "clients values: #{@clients.values}"
        if @clients.size == 2
            start_game#####################!!!! Starts game if two clients  can put client messages in start game
        end
    end


    def start_game  ##############!!!
        @clients.keys[0].puts  "Welcome to War.  Please press enter to play your card"
        @clients.keys[1].puts  "Welcome to War.  Please press enter to play your card"

    end

end

class MockWarClient
    def initialize
        @socket = TCPSocket.new('localhost', 2012)
    end

    def output
        @output 
    end

    def capture_output  #need to add (socket)?  How else read from specific socket?
        @output = @socket.read_nonblock(1000) # arbitrary max number of bytes
    rescue
        @output = "capture_output error."
    end

    def capture_input

    end
end

class WarServerTest < MiniTest::Unit::TestCase


    def setup   #This would be like our INITIALIZE Function
        #anything is available through out all tests (i.e., instance vars)
        @war_server = WarServer.new('localhost', 2012)
    end


    def teardown
        @war_server.close
    end


    def test_server_capture_output_from_client
        client_1 = MockWarClient.new
        @war_server.accept_client

        client_2 = MockWarClient.new
        @war_server.accept_client

        #can output @war_server.read_client_keys, though, if I take out the argument to pass in.
        #puts "Test_Server_output @client keys #{@war_server.read_client_keys(player)}" #cient_1?
        puts "Test_Server_output @client keys #{@war_server.read_client_keys}" 
        # I NEED TO JUST BE ABLE TO GET *ONE* KEY SO I CAN READ FROM THE SOCKET
        @warserver.capture_input
        refute(@war_server.input.empty)
    end
end

Answer 1

您必须使用#keys[0]（或#keys.first）来选择哈希的第一个键。

函数#key(val)执行不同的操作，返回与哈希中val出现对应的键。

http://www.ruby-doc.org/core-2.0.0/Hash.html#method-i-key-3F

def read_client_keys
  @clients.keys[0] # this should work
end

需要为我的主程序在哈希中访问ONE KEY / SOCKET

1 个答案: