Question

我正在使用pygame制作游戏，玩家应该能够连接到托管游戏的服务器，然后能够使用客户端与服务器交互以更改玩家的方向。我的问题是，当第一个客户端连接时，客户端上会发生此错误：

Traceback (most recent call last):
  File "<input>", line 1, in <module>
  File "C:\Users\charl\Desktop\PyCharm 2019.2.1\helpers\pydev\_pydev_bundle\pydev_umd.py", line 197, in runfile
    pydev_imports.execfile(filename, global_vars, local_vars)  # execute the script
  File "C:\Users\charl\Desktop\PyCharm 2019.2.1\helpers\pydev\_pydev_imps\_pydev_execfile.py", line 18, in execfile
    exec(compile(contents+"\n", file, 'exec'), glob, loc)
  File "C:/Users/charl/OneDrive - King Edward VI College, Stourbridge/Programming project course work/Main game/Tron 5.1/Tron client.py", line 91, in <module>
    g.run()
  File "C:/Users/charl/OneDrive - King Edward VI College, Stourbridge/Programming project course work/Main game/Tron 5.1/Tron client.py", line 85, in run
    self.send()
  File "C:/Users/charl/OneDrive - King Edward VI College, Stourbridge/Programming project course work/Main game/Tron 5.1/Tron client.py", line 78, in send
    data = (read_pos(self.n.send(make_pos(self.direction))))
  File "C:/Users/charl/OneDrive - King Edward VI College, Stourbridge/Programming project course work/Main game/Tron 5.1/Tron client.py", line 35, in read_pos
    return json.loads(str)  # returns as tuple
  File "C:\Users\charl\Desktop\Coding\lib\json\__init__.py", line 348, in loads
    return _default_decoder.decode(s)
  File "C:\Users\charl\Desktop\Coding\lib\json\decoder.py", line 337, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "C:\Users\charl\Desktop\Coding\lib\json\decoder.py", line 355, in raw_decode
    raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)

但是当我在另一个窗口中运行代码时，它可以正常工作。

这是我在服务器上开始游戏的方式：

g = Game(650, 600, "tron")
start = time.time()
g.runGame()

currentPlayer = 0
while True:
   conn, addr = player1.accept()
   print("Connected to:", addr)

   start_new_thread(threaded_client, (conn, currentPlayer))
   currentPlayer += 1

   if currentPlayer == 2:
       break

我认为问题出在'if currentPlayer == 2：'，但是没有这个客户端将无法连接

我认为可能还会引起问题的唯一其他代码是：

def threaded_client(conn, player):
  global startData
  if player == 0:  # player 1
      startData = direction[0]
  if player == 1:  # player 2
      startData = direction[1]

  conn.send(str.encode(make_pos(startData)))  # converts to a string then sends to player

  while True:
      try:
          data = read_pos(conn.recv(2048).decode())
          if type(data) == list:
              direction[player] = data  # updates player in window

              g.p1.direction = direction[0]
              g.p2.direction = direction[1]

              reply = "got dir"
              conn.sendall(str.encode(make_pos(reply)))


      except:
          break

  print("Lost connection")
  conn.close()

这是客户端上的代码：

class game:
   def __init__(self, h, w, t):
       self.WIDTH = w
       self.HEIGHT = h
       self.TITLE = t
       self.direction = (0, 0)
       self.clock = pygame.time.Clock()
       self.n = Network()

       self.screen = pygame.display.set_mode((self.WIDTH, self.HEIGHT))
       pygame.display.set_caption(self.TITLE)

   def start(self):
       self.direction = read_pos(self.n.getStartData())

   def Events(self):
       for event in pygame.event.get():  # gets all events in last tick
           if event.type == pygame.KEYDOWN:  # If key is pressed
               # *** Player one control ***
               if event.key == pygame.K_w:
                   self.direction = (0, -2)

               elif event.key == pygame.K_s:
                   self.direction = (0, 2)

               elif event.key == pygame.K_d:
                   self.direction = (2, 0)

               elif event.key == pygame.K_a:
                   self.direction = (-2, 0)

   def flip(self):
       pygame.display.flip()  # Update the screen
       self.clock.tick(60)  # Controls the FPS

   def send(self):
       data = (read_pos(self.n.send(make_pos(self.direction))))
       print(data)

   def run(self):
       self.start()
       while True:
           self.Events()
           self.send()
           print(self.direction)
           self.flip()

第一个客户端无法连接到服务器

0 个答案: