问题描述
我创建了一个播放器类并实例化了它,但当我尝试移动它时它不起作用。 我不明白出了什么问题。 我以为问题出在函数的顺序上,但不是。
代码如下:
import pygame
from variabile import *
pygame.init()
screen = pygame.display.set_mode((1000,1000))
def ecranAlb():
WHITE = (255,255,255)
screen.fill(WHITE)
class Player():
def __init__(self,x,y):
self.x = x
self.y = y
def display(self):
rect = pygame.Rect(self.x,self.y,100,100)
pygame.draw.rect(screen,(255,0),rect)
def move(self):
keys = pygame.key.get_pressed()
if keys[pygame.K_UP]:
self.x = self.x + 2
running = True
while running:
for event in pygame.event.get():
if event.type == pygame.QUIT:
running = False
a = Player(100,100)
ecranAlb()
a.move()
a.display()
pygame.display.flip()
解决方法
您必须在应用程序循环之前创建 Player
类的实例对象。当你在循环中这样做时,那么在每一帧中都会在初始位置生成一个新对象:
a = Player(100,100) # <--- INSERET
running = True
while running:
for event in pygame.event.get():
if event.type == pygame.QUIT:
running = False
# a = Player(100,100) <--- DELETE
ecranAlb()
a.move()
a.display()
pygame.display.flip()