oop pygame player_x变量更改，但在显示中没有发生任何变化

Question

嗨，整个编程非常陌生，所以这可能是一个非常愚蠢的问题。目前正在尝试通过制作游戏来了解有关OOP的更多信息。

虽然player_x的价值正在变化，但由于某些原因，它没有像我预期的那样移动。

main.py

import pygame, settings, obstacles, npc, player
from utils import *
pygame.init()

window = pygame.display.set_mode((settings.WIDTH, settings.HEIGHT))
FPS = pygame.time.Clock()

player = player.Player(window)

Loop

run = True

while run:
    FPS.tick(settings.FPS)

    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            run = False
        if event.type == pygame.KEYDOWN:
            if event.key == pygame.K_w:
                settings.PLAYER_X -= 5
                print(settings.PLAYER_X)

    pygame.display.update()

player.py

import pygame, settings
pygame.init()

class Player():
    def __init__(self, window) -> None:
        pygame.draw.rect(window, settings.OLIVE, (settings.PLAYER_X, settings.PLAYER_Y, settings.PLAYER_WIDTH, settings.PLAYER_HEIGHT)) # (x, y, width, height)
    
    def player_control(self):
        pass

settings.py

WIDTH = 1440
HEIGHT = 720
FPS = 60

PLAYER_X = 100
PLAYER_Y = 200
PLAYER_WIDTH = 50 
PLAYER_HEIGHT = 50

OLIVE = (136, 196, 23)

Answer 1

要移动player，您需要：

• 在每个while-loop中渲染player，
• 使用更新的player，使用更新的player_x

，您需要在代码中进行一些修改：

1. 创建一个函数以在player.py.py.py中渲染并在循环中调用，而不是渲染player在__ INIT __中，只能称为一次。

2. 参考settings.player_x在__ INT __ INT __ in player.py.py中仅一次，然后更新player 按下键时对象。

   


3. 在每个循环的末尾，渲染player对象。

---

player.py

import pygame, settings
pygame.init()

class Player():
    def __init__(self, window) -> None:
        self.window = window
        self.color = settings.OLIVE
        self.X = settings.PLAYER_X
        self.Y = settings.PLAYER_Y
        self.W = settings.PLAYER_WIDTH
        self.H = settings.PLAYER_HEIGHT
        self.render()
    
    def render(self):
        pygame.draw.rect(self.window, self.color, (self.X, self.Y, self.W, self.H)) 
        
    def player_control(self):
        pass

---

main.py

import pygame, settings, player
pygame.init()

window = pygame.display.set_mode((settings.WIDTH, settings.HEIGHT))
FPS = pygame.time.Clock()

player = player.Player(window)

run = True

while run:
    FPS.tick(settings.FPS)
    
    for event in pygame.event.get():
        
        if event.type == pygame.QUIT:
            run = False
        if event.type == pygame.KEYDOWN:
            if event.key == pygame.K_w:
                player.X -= 5
                print(player.X)
    window.fill((0, 0, 0))
    player.render()
    pygame.display.update()