pygame 中的贪吃蛇游戏没有运行

Question

import pygame
from pygame.locals import *

class Snake:
    def __init__(self, parent_screen):
        self.parent_screen = parent_screen
        self.block = pygame.image.load("BLOCK.png")
        self.x = 100
        self.y = 100
    
    def draw(self):
        self.parent_screen.fill("White")
        self.parent_screen.blit(self.block, (self.x,self.y))
        pygame.display.flip()

    def move_up(self):
        self.y -= 10
        self.draw()

    def move_down(self):
        self.y += 10
        self.draw()

    def move_right(self):
        self.x += 10
        self.draw()

    def move_left(self):
        self.x -= 10
        self.draw()    

class game:
    def __init__(self):
        pygame.init()
        self.screen = pygame.display.set_mode((500,500))
        self.screen.fill("White")
        self.snake = Snake(self.screen)
        self.snake.draw()
        

    def run(self):
        game_on = True

        while game_on:
            for event in pygame.event.get():
                if event.type == KEYDOWN:
                    if event.key == K_w:
                        self.snake.move_up()

                    elif event.key == K_s:
                        self.snake.move_down()

                    elif event.key == K_a:
                        self.snake.move_left()

                    elif event.key == K_d:
                        self.snake.move_right()

                elif event.type == QUIT:
                    game_on = False
                
                pygame.display.flip()


Game = game()
Game.run

Answer 1

必须在应用程序中绘制和更新场景：

class game:
    def __init__(self):
        pygame.init()
        self.screen = pygame.display.set_mode((500,500))
        #self.screen.fill("White")                       # <-- DELETE
        self.snake = Snake(self.screen)
        #self.snake.draw()                               # <-- DELETE 
        
    def run(self):
        game_on = True
        while game_on:
            for event in pygame.event.get():
                if event.type == KEYDOWN:
                    if event.key == K_w:
                        self.snake.move_up()
                    elif event.key == K_s:
                        self.snake.move_down()
                    elif event.key == K_a:
                        self.snake.move_left()
                    elif event.key == K_d:
                        self.snake.move_right()

                elif event.type == QUIT:
                    game_on = False

            self.screen.fill("White")                   # <-- INSERT
            self.snake.draw()                           # <-- INSERT
            pygame.display.flip() 

Game = game()
Game.run()                                              # <-- ()

典型的 PyGame 应用程序循环必须：

限制每秒帧数以限制 CPU 使用 pygame.time.Clock.tick
通过调用 pygame.event.pump() or pygame.event.get().
根据输入事件和时间（分别为帧）更新对象的游戏状态和位置
清除整个显示或绘制背景
绘制整个场景（blit 所有对象）
通过调用 pygame.display.update() or pygame.display.flip()

pygame 中的贪吃蛇游戏没有运行

snake game in pygame doesn't run

python

pygame

pygame 中的贪吃蛇游戏没有 运行

snake game in pygame doesn't run

python

pygame

pygame 中的贪吃蛇游戏没有运行