如何使用socket编程发送pygame屏幕

Question

我试图使用套接字编程将我的pygame屏幕发送到另一台电脑，但客户端出现错误。py实际上在pygame的新版本中，所以为什么会发生这种情况我没有理解

Traceback（最近的调用最后）：文件"webclient.py"，第24行，在图像=pygame.image.fromstring（数据集，（320,240），"RGB"）#转换接收到的图像从字符串值错误：字符串长度不等于格式和分辨率大小

在server.py

Traceback（最后一次调用）： File"/home/gaurav/Desktop/Games_Project/panda.py"，第35行，在Image=screen.blit（bg，（0,0））AtiniteError：'NoneType'对象没有属性'blit'

这是我的服务器。派克

import pygame
import socket
import os
import time
width=800
height=600
fps=60
port=5012
imgdir=os.path.join(os.path.dirname(__file__),"img")
serversocket =socket.socket(socket.AF_INET,socket.SOCK_STREAM)
serversocket.bind(("",port))
serversocket.listen(1)
pygame.init()
clock=pygame.time.Clock()
screen=pygame.display.set_mode((width,height))
screen=pygame.display.set_caption("Game by Players")
bg = pygame.image.load(os.path.join(imgdir,"starfield.png")).convert()

running=True
while running:
    clock.tick(fps)
    for event in pygame.event.get():
    # check for closing window
        if event.type == pygame.QUIT:
            running = False
    connection, address = serversocket.accept()
    image = screen.blit(bg, (0, 0))
    pygame.display.flip()
    data = pygame.image.tostring(image, "RGB")  # convert captured image  to string, use RGB color scheme
    connection.sendall(data)
    connection.close()
 pygame.quit()

这是我的客户。派克

import socket
import pygame
import sys

host = "127.0.0.1"
port=5012
screen = pygame.display.set_mode((320,240),0)
while True:
    clientsocket=socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    clientsocket.connect((host, port))
    received = []
# loop .recv, it returns empty string when done, then transmitted data is completely received
    while True:
        recvd_data = clientsocket.recv(230400)
    if not recvd_data:
        break
    else:
        received.append(recvd_data)

dataset = ''.join(received)
image = pygame.image.fromstring(dataset,(320,240),"RGB") # convert received image from string
screen.blit(image,(0,0)) # "show image" on the screen
pygame.display.update()

# check for quit events
for event in pygame.event.get():
    if event.type == pygame.QUIT:
        pygame.quit()
        sys.exit()

Answer 1

Traceback (most recent call last): File "webclient.py", line 24,
in image = pygame.image.fromstring(dataset,(320,240),"RGB") # convert received image from string
ValueError: String length does not equal format and resolution size

我不确定你是否完全理解blit的工作。它会将图像推送到屏幕上的某个位置。它的返回值是一个pygame。Rect对象，但看起来您需要一个图像。

然后，你试图发送这个pyplay。Rect对象，将发生此错误，因为您的代码期待一个包含图像的字符串，但它接收到一个表示pyplay的字符串。Rect对象。

您似乎正在尝试发送bg图像。为此，请在服务器内部更改此代码。py:

data = pygame.image.tostring(image, "RGB")  # convert captured image  to string, use RGB color scheme

到

data = pygame.image.tostring(bg, "RGB")  # convert captured image  to string, use RGB color scheme

Traceback (most recent call last): File "panda.py", line 35,
in image = screen.blit(bg, (0, 0)) AttributeError: 'NoneType' object has no attribute 'blit'

请看以下几行：

screen=pygame.display.set_mode((width,height))
screen=pygame.display.set_caption("Game by Players")

在第一行中，您正确地创建了pyplay。要显示的表面。在第二行中，您正试图设置窗口标题。这就是错误发生的地方。看看这个函数的pyplay文档：

pygame.display.set_caption()
    Set the current window caption
    set_caption(title, icontitle=None) -> None

函数返回None！这意味着当您尝试调用screen时，屏幕现在等于None。blit，因此出现了错误。

要解决此问题，请更改此行：

screen=pygame.display.set_caption("Game by Players")

到

pygame.display.set_caption("Game by Players")