PYGAME移動一個物體，同時讓其他人移動

Question

現在我擁有它，因此一些物體會以不同的時間和速度在屏幕上滾動，還有一個可以用我的箭頭鍵控制的圖標（英雄）。然而，每當我按下一個鍵，圖標就會返回到原來的位置。什麼可能導致這個？

import pygame, sys, time, random 
from pygame.locals import * 
pygame.init() 
winW = 800 
winH = 500 
surface = pygame.display.set_mode ((winW, winH),0,32) 

class Enemy(): 
    def __init__(self, char, xMoveAmnt, startY=0, startX=0, delay=0): 
     self.char = char 
     self.delay=delay 
     self.x = startX 
     self.y = startY 
     self.startX=startX 
     self.startY=startY 
     self.xMoveAmnt = xMoveAmnt 
     self.image = pygame.image.load(self.char) 
     self.rect = self.image.get_rect() 


    def moveChar(self): 
     if self.delay > 0: 
      self.delay -= 1 
      return 
     self.x += self.xMoveAmnt 
     if self.x + self.rect.right >= 800: 
      self.x=self.startX 
      self.y=random.randint(0,300) 

class FastEnemy(Enemy): 
    def moveChar(self): 
     if self.delay > 0: 
      self.delay -= 1 
      return 
     self.x += self.xMoveAmnt+10 
     if self.x + self.rect.right >= 800: 
      self.x=self.startX 
      self.y=random.randint(0,300) 

class SlowEnemy(Enemy):  
    def moveChar(self): 
     if self.delay > 0: 
      self.delay -= 1 
      return 
     self.x += self.xMoveAmnt-5 
     if self.x + self.rect.right >= 800: 
      self.x=self.startX 
      self.y=random.randint(0,300) 

class Hero(): 
    def __init__(self): 
     self.X_MOVE_AMT = 5 
     self.Y_MOVE_AMT = 5 
     self.spaceMoveX = 0 
     self.spaceMoveY = 0 
     self.startingX=400 
     self.startingY=250 
     self.x=self.startingX 
     self.y=self.startingY 
     self.space = pygame.image.load ("hero_sprite.jpg") 
     self.spaceRect = self.space.get_rect() 
     self.spaceRect.topleft = (100,100) 

    def moveHero(self): 


     for event in pygame.event.get(): 
      if event.type == KEYDOWN: 
       if event.key == K_LEFT : 
        self.x += -(self.X_MOVE_AMT) 
        self.y = 0 
       if event.key == K_RIGHT : 
        self.x += self.X_MOVE_AMT 
        self.y = 0 
       if event.key == K_UP : 
        self.y += -(self.Y_MOVE_AMT) 
        self.x = 0 
       if event.key == K_DOWN : 
        self.y += self.Y_MOVE_AMT 
        self.x = 0 
       if event.key == ord (' '): 
        self.y = 0 
        self.x = 0 
       if event.key == K_ESCAPE: 
        pygame.quit() 
        sys.exit() 

     self.spaceRect.top += self.spaceMoveY 
     self.spaceRect.left += self.spaceMoveX 

     if self.spaceRect.top < 0: 
      self.spaceRect.top = 0 

     if self.spaceRect.bottom > 500: 
      self.spaceRect.bottom = 500 

     if self.spaceRect.left < 0: 
      self.spaceRect.left = 0 

     if self.spaceRect.right > 800: 
      self.spaceRect.right = 800 



enemyList = [] 
hero=Hero() 
for i in range (0, 8): 
    xMoveAmnt=20 
    enemyList.append(SlowEnemy(("orc3.png"), xMoveAmnt, random.randint(0, 500), 0, random.randint(0,100))) 
    enemyList.append(Enemy(("orc.png"), xMoveAmnt, random.randint(0, 500), 0, random.randint(0,100))) 
    enemyList.append(FastEnemy(("orc2.png"), xMoveAmnt, random.randint(0, 500), 0, random.randint(0,100))) 

while True: 
    surface.fill ((255,255,255)) 
    for enemy in enemyList: 
     enemy.moveChar() 
     hero.moveHero() 
     surface.blit(enemy.image, (enemy.x, enemy.y)) 
     surface.blit(hero.space, (hero.x, hero.y)) 
     time.sleep(00.01) 
    pygame.display.update() 

Answer 1

  if event.key == K_LEFT : 
       self.x += -(self.X_MOVE_AMT) 
       self.y = 0 
      if event.key == K_RIGHT : 
       self.x += self.X_MOVE_AMT 
       self.y = 0 
      if event.key == K_UP : 
       self.y += -(self.Y_MOVE_AMT) 
       self.x = 0 
      if event.key == K_DOWN : 
       self.y += self.Y_MOVE_AMT 
       self.x = 0 
      if event.key == ord (' '): 
       self.y = 0 
       self.x = 0 
      if event.key == K_ESCAPE: 
       pygame.quit() 
       sys.exit() 

需要被

  if event.key == K_LEFT : 
       self.x += -(self.X_MOVE_AMT) 
      if event.key == K_RIGHT : 
       self.x += self.X_MOVE_AMT 
      if event.key == K_UP : 
       self.y += -(self.Y_MOVE_AMT) 
      if event.key == K_DOWN : 
       self.y += self.Y_MOVE_AMT 
      if event.key == K_ESCAPE: 
       pygame.quit() 
       sys.exit() 

我被重置Y和X每次我按下的按鈕。對不起浪費你的時間！