Pygame乒乓球拍不顯示

Question

我正在Pygame中開發乒乓球游戲。 使槳在班級的屏幕上顯示時遇到一些麻煩。 我感到我的構造函數init方法不正確（盡管沒有拋出任何錯誤），或者顯示顏色覆蓋了槳。

這是我的代碼。

Program.py

import sys
import pygame

from settings import Settings
from paddles import Paddles
import game_functions as gf


def run_game():
    # Initialise pygame, settings and screen object.
    pygame.init()

    ai_settings = Settings()
    screen = pygame.display.set_mode((ai_settings.screen_width,ai_settings.screen_height))
    pygame.display.set_caption('Ping Pong')


    # Start the main loop for the game.
    while True:
        gf.check_events()
        gf.update_screen(ai_settings,screen)

    #Make paddles
    paddles = Paddles(screen)


run_game()

paddles.py

import pygame
import sys

class Paddles():

    def __init__(self, screen):
        self.screen = screen
        self.paddle_l = pygame.draw.rect(screen, (255, 255, 255), [15, 250, 10, 100])
        self.paddle_r = pygame.draw.rect(screen, (255, 255, 255), [780, 250, 10, 100])

    def paddles(self):
        pass

settings.py

class Settings():
    """A class to store all settings for Ping Pong"""

    def __init__(self):
        """Initialise the game's settings."""
        # Screen settings
        self.screen_width = 800
        self.screen_height = 600
        self.bg_colour = (0,0,0)

game_functions.py

import sys
import pygame

def check_events():
    """Respond to keypresses and mouse events."""
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            sys.exit()

def update_screen(ai_settings, screen):
    """Update images on the screen and flip to the new screen."""
    # Redraw the screen during each pass through the loop.
    screen.fill(ai_settings.bg_colour)


    pygame.display.flip()

就像我說的我沒有收到任何錯誤一樣，游戲窗口只是打開為黑色背景。 當我將其放入普通函數而不是類中時，代碼可以工作。

我究竟做錯了什么？ 如何顯示槳？

Answer 1

您將paddles設置在“主循環”之外是有原因的嗎？

至少將paddles移入update_screen方法update_screen它們顯示。 但是，這在每次調用update_screen時update_screen更新一個新的update_screen對象。

def update_screen(ai_settings, screen):
    """Update images on the screen and flip to the new screen."""
    # Redraw the screen during each pass through the loop.
    screen.fill(ai_settings.bg_colour)
    paddles = Paddles(screen)
    pygame.display.flip()