1
我创建使用pygame的模块Python中的太空侵略者克隆，但我遇到了一些困难，让他们到达游戏画面的边缘时，向下移动到一起。pygame的太空侵略者游戏 - 让外国人一起移动
我怎么会让它所以当外星人到达游戏画面都同时改变方向和下拉一个级别的边缘？
import pygame
import random
class spaceInvader(pygame.sprite.Sprite):
def __init__(self):
self.image = pygame.image.load("spaceInvader.png")
self.x = 200
self.y = 390
self.shots = []
def handle_keys(self):
key = pygame.key.get_pressed()
dist = 5
if key[pygame.K_RIGHT]:
self.x+=dist
elif key[pygame.K_LEFT]:
self.x-=dist
def draw(self, surface):
surface.blit(self.image,(self.x,self.y))
for s in self.shots:
s.draw(screen)
class Alien(pygame.sprite.Sprite):
def __init__(self,x,y,direction,alienType):
pygame.sprite.Sprite.__init__(self)
self.AlienType = alienType
self.Direction = direction
if alienType == 1:
alienImage = pygame.image.load("alien1.png")
self.Speed = 1
self.Score = 5
if alienType == 2:
alienImage = pygame.image.load("alien2.png")
self.Score = 15
self.Speed = 1
if alienType == 3:
alienImage = pygame.image.load("alien3.png")
self.Score = 10
self.Speed = 1
if alienType == 4:
alienImage = pygame.image.load("alien4.png")
self.Score = 20
self.Speed = 1
if alienType == 5:
alienImage = pygame.image.load("alien5.png")
self.Score = 25
self.Speed = 1
self.image = pygame.Surface([26, 50])
self.image.set_colorkey(black)
self.image.blit(alienImage,(0,0))
self.rect = self.image.get_rect()
self.rect.x = x
self.rect.y = y
def moveAliens(self):
if self.Direction == "right":
self.rect.x += self.Speed
if self.Direction == "left":
self.rect.x -= self.Speed
pygame.init()
pygame.mouse.set_visible(False)
screen = pygame.display.set_mode([400,400])
allAliens = pygame.sprite.Group()
spaceInvader = spaceInvader()
pygame.display.set_caption("Space Attack")
background_image = pygame.image.load("Galaxy.png").convert()
pygame.mouse.set_visible(True)
done = False
clock = pygame.time.Clock()
black =(0, 0, 0)
white =(255,255,255)
red = (255, 0, 0)
score = 0
enemies = []
#For X coords
spawnPositions = [50,100,150,200,250,300,350]
yCoord = 10
for n in range(5):
for i in range(len(spawnPositions)):
xCoord = spawnPositions[i]
alienType = random.randint(1,5)
alien = Alien(xCoord, yCoord,"right", alienType)
allAliens.add(alien)
yCoord = yCoord + 15
loop = 0
while done == False:
for event in pygame.event.get():
if event.type == pygame.QUIT:
done = True
for alien in (allAliens.sprites()):
if alien.rect.x < 0:
alien.rect.y = alien.rect.y + 15
alien.Direction = "right"
if alien.rect.x > 395:
alien.rect.y = alien.rect.y + 15
alien.Direction = "left"
loop =+1
for alien in (allAliens.sprites()):
alien.moveAliens()
spaceInvader.handle_keys()
screen.blit(background_image,[0,0])
spaceInvader.draw(screen)
allAliens.draw(screen)
pygame.display.flip()
clock.tick(20)
pygame.quit()
谢谢。
对于类，请为每个单词使用大写字母命名。例如'SpaceInvader'而不是'spaceInvader'。对于属性和变量，用小写和下划线来命名它们以分隔每个单词。例如'self.alien_type'而不是'self.AlienType'和'y_coord'而不是'yCoord'。这样你就可以遵循Python的命名约定，并且使其他程序员更容易快速识别什么是类，什么是属性或变量。 –