import time
import pygame
import random
player = pygame.image.load('player.png')
BLACK = (0, 0, 0)
WHITE = (255, 255, 255)
RED = (255, 0, 0)
BLUE = (0, 0, 255)
GREEN = (0, 255, 0)
class enemy(pygame.sprite.Sprite):
def __init__(self, color):
super().__init__()
self.image = pygame.Surface([10, 15])
self.image.fill(color)
self.rect = self.image.get_rect()
enemy_spd = 1
class Barrier(pygame.sprite.Sprite):
def __init__(self, color):
super().__init__()
self.image = pygame.Surface([30, 10])
self.image.fill(color)
self.rect = self.image.get_rect()
class Player(pygame.sprite.Sprite):
def __init__(self):
super().__init__()
self.image = player
self.rect = self.image.get_rect()
def update(self):
pos = pygame.mouse.get_pos()
self.rect.x = pos[0]
class Bullet(pygame.sprite.Sprite):
def __init__(self):
super().__init__()
self.image = pygame.Surface([2, 10])
self.image.fill(GREEN)
self.rect = self.image.get_rect()
def update(self):
self.rect.y -= 2
pygame.init()
screen = pygame.display.set_mode([700, 400])
all_sprites_list = pygame.sprite.Group()
enemy_list = pygame.sprite.Group()
bullet_list = pygame.sprite.Group()
barrier_list = pygame.sprite.Group()
#Create the moving space enemies
###############
enemy1 = enemy(WHITE)
enemy2 = enemy(WHITE)
enemy3 = enemy(WHITE)
enemy4 = enemy(WHITE)
enemy5 = enemy(WHITE)
enemy6 = enemy(WHITE)
enemy7 = enemy(WHITE)
enemy8 = enemy(WHITE)
################
#create barriers
###################
barrier1 = Barrier(GREEN)
barrier2 = Barrier(GREEN)
barrier3 = Barrier(GREEN)
barrier4 = Barrier(GREEN)
barrier5 = Barrier(GREEN)
barrier6 = Barrier(GREEN)
barrier7 = Barrier(GREEN)
barrier8 = Barrier(GREEN)
barrier9 = Barrier(GREEN)
barrier10 = Barrier(GREEN)
barrier11 = Barrier(GREEN)
barrier12 = Barrier(GREEN)
barrier13 = Barrier(GREEN)
barrier14 = Barrier(GREEN)
barrier15 = Barrier(GREEN)
barrier16 = Barrier(GREEN)
barrier17 = Barrier(GREEN)
barrier18 = Barrier(GREEN)
barrier19 = Barrier(GREEN)
barrier20 = Barrier(GREEN)
barrier21 = Barrier(GREEN)
barrier22 = Barrier(GREEN)
barrier23 = Barrier(GREEN)
barrier24 = Barrier(GREEN)
barrier25 = Barrier(GREEN)
barrier26 = Barrier(GREEN)
barrier27 = Barrier(GREEN)
barrier28 = Barrier(GREEN)
barrier29 = Barrier(GREEN)
barrier30 = Barrier(GREEN)
barrier31 = Barrier(GREEN)
barrier32 = Barrier(GREEN)
###################
enemy1.rect.x =30
enemy1.rect.y =50
enemy2.rect.x =50
enemy2.rect.y =50
enemy3.rect.x =70
enemy3.rect.y =50
enemy4.rect.x =90
enemy4.rect.y =50
enemy5.rect.x =110
enemy5.rect.y =50
enemy6.rect.x =130
enemy6.rect.y =50
enemy7.rect.x =150
enemy7.rect.y =50
enemy8.rect.x =170
enemy8.rect.y =50
####################
barrier1.rect.x =0
barrier1.rect.y =320
barrier2.rect.x =30
barrier2.rect.y =320
barrier3.rect.x =60
barrier3.rect.y =320
barrier4.rect.x =150
barrier4.rect.y =320
barrier5.rect.x =180
barrier5.rect.y =320
barrier6.rect.x =210
barrier6.rect.y =320
barrier7.rect.x =300
barrier7.rect.y =320
barrier8.rect.x =330
barrier8.rect.y =320
barrier9.rect.x =350
barrier9.rect.y =320
barrier10.rect.x =440
barrier10.rect.y =320
barrier12.rect.x =470
barrier12.rect.y =320
barrier13.rect.x =500
barrier13.rect.y =320
barrier14.rect.x =590
barrier14.rect.y =320
barrier15.rect.x =620
barrier15.rect.y =320
barrier16.rect.x =650
barrier16.rect.y =320
barrier17.rect.x =0
barrier17.rect.y =330
barrier18.rect.x =30
barrier18.rect.y =330
barrier19.rect.x =60
barrier19.rect.y =330
barrier20.rect.x =150
barrier20.rect.y =330
barrier21.rect.x =180
barrier21.rect.y =330
barrier22.rect.x =210
barrier22.rect.y =330
barrier23.rect.x =300
barrier23.rect.y =330
barrier24.rect.x =330
barrier24.rect.y =330
barrier25.rect.x =350
barrier25.rect.y =330
barrier26.rect.x =440
barrier26.rect.y =330
barrier27.rect.x =470
barrier28.rect.y =330
barrier29.rect.x =500
barrier29.rect.y =330
barrier30.rect.x =590
barrier30.rect.y =330
barrier31.rect.x =620
barrier31.rect.y =330
barrier32.rect.x =650
barrier32.rect.y =330
enemy_list.add(enemy1, enemy2, enemy3, enemy4, enemy5, enemy6, enemy7, enemy8, barrier1, barrier2, barrier3, barrier4, barrier5, barrier6, barrier7, barrier8, barrier9, barrier10, barrier11, barrier12, barrier13, barrier14, barrier15, barrier16, barrier17, barrier18, barrier19, barrier20, barrier21, barrier22, barrier23, barrier24, barrier25, barrier26, barrier27, barrier28, barrier29, barrier30, barrier31, barrier32)
all_sprites_list.add(enemy1, enemy2, enemy3, enemy4, enemy5, enemy6, enemy7, enemy8, barrier1, barrier2, barrier3, barrier4, barrier5, barrier6, barrier7, barrier8, barrier9, barrier10, barrier11, barrier12, barrier13, barrier14, barrier15, barrier16, barrier17, barrier18, barrier19, barrier20, barrier21, barrier22, barrier23, barrier24, barrier25, barrier26, barrier27, barrier28, barrier29, barrier30, barrier31, barrier32)
player = Player()
all_sprites_list.add(player)
done = False
clock = pygame.time.Clock()
score = 0
player.rect.y = 370
# Main Program
while not done:
for event in pygame.event.get():
if event.type == pygame.QUIT:
done = True
elif event.type == pygame.MOUSEBUTTONDOWN:
# Fire a bullet if the user clicks the mouse button
bullet = Bullet()
# Set the bullet so it is where the player is
bullet.rect.x = player.rect.x + 14
bullet.rect.y = player.rect.y + 8
# Add the bullet to the lists
all_sprites_list.add(bullet)
bullet_list.add(bullet)
pygame.mouse.set_visible(0)
################STACKOVERFLOW#################
if enemy1.rect.x<=700:
enemy1.rect.x += 1
if enemy1.rect.x>=560 and enemy1.rect.y<=55:
enemy1.rect.y += 5
enemy1.rect.x -= 2
if enemy2.rect.x<=700:
enemy2.rect.x += 1
if enemy2.rect.x>=580 and enemy2.rect.y<=55:
enemy2.rect.y += 5
if enemy3.rect.x<=700:
enemy3.rect.x += 1
if enemy3.rect.x>=600 and enemy3.rect.y<=55:
enemy3.rect.y += 5
if enemy4.rect.x<=700:
enemy4.rect.x += 1
if enemy4.rect.x>= 620 and enemy4.rect.y<=55:
enemy4.rect.y += 5
if enemy5.rect.x<=700:
enemy5.rect.x += 1
if enemy5.rect.x>=640 and enemy5.rect.y<=55:
enemy5.rect.y += 5
if enemy6.rect.x<=700:
enemy6.rect.x += 1
if enemy6.rect.x>=660 and enemy6.rect.y<=55:
enemy6.rect.y += 5
if enemy7.rect.x<=700:
enemy7.rect.x += 1
if enemy7.rect.x>=680 and enemy7.rect.y<=55:
enemy7.rect.y += 5
if enemy8.rect.x<= 700:
enemy8.rect.x += 1
if enemy8.rect.x>=700 and enemy8.rect.y<=55:
enemy8.rect.y += 5
all_sprites_list.update()
for bullet in bullet_list:
enemy_hit_list = pygame.sprite.spritecollide(bullet, enemy_list, True)
for enemy in enemy_hit_list:
bullet_list.remove(bullet)
all_sprites_list.remove(bullet)
#Make bullet disappear after going off screen
if bullet.rect.y < -10:
bullet_list.remove(bullet)
all_sprites_list.remove(bullet)
pygame.display.set_caption("Speece Invoders")
# Clear the screen
screen.fill(BLACK)
# Draw all the spites
all_sprites_list.draw(screen)
# Go ahead and update the screen with what we've drawn.
pygame.display.flip()
clock.tick(40)
pygame.quit()
在它所说的部分##### STACKOVERFLOW #####是我遇到问题的地方，我试图让第一个敌人在太空入侵者向下移动后离开（游戏是一个克隆人） ）。然而，所发生的一切都是敌人倒下并完全停顿。有关如何解决它的任何想法？我是一名初学程序员，任何事情都会有所帮助。谢谢！
答案 0 :(得分：1)
为Enemy课程制作曲目的一种可能方法是拥有这样的默认曲目：
class Enemy(pygame.sprite.Sprite):
path = [(0,0), (1,5), (2,11) .... ]
def __init__(self, color, x, y): #adding additional x, y arguments will declutter your code
super().__init__()
self.x, self.y = x, y #assign coordinates NOW
self.start_x, self.start_y = x, y #added to using path
self.current_path_index = 0
#et cetera
def update(self):
self.x = self.start_x + path[self.current_path_index][0]
self.y = self.start_y + path[self.current_path_index][0]
self.current_path_index += 1
创建的路径可以Enemy.path访问，或者在Enemy的实例中访问self.path，有点像self.update()。
这样做会为你的敌人制作一个默认路径，并在每次为精灵调用update()函数时增加它。