这是程序

主程序

import pygame#模块pygame包含开发游戏所需的功能

from pygame.sprite import Group

from setting import  Settings

from ship import Ship

import game_function as gf

def run_game():

#初始化游戏并创建一个屏幕对象

pygame.init()

#初始化背景设置

ai_settings=Settings()

screen=pygame.display.set_mode((ai_settings.screen_width,ai_settings.screen_height))

#(1200,800)是一个元组   pygame.display.set_mode()返回一个surface(每个元素都是都是一个surface)，显示整个游戏画面

bullets=Group()#创建一个用于储存子弹的编组

aliens=Group()

gf.create_fleet(ai_settings,screen,aliens)

pygame.display.set_caption("Alien Invasion")

ship=Ship(ai_settings,screen)

#开始游戏主循环

while True:

gf.check_events(ai_settings,screen,ship,bullets)

ship.update()

gf.update_bullets(bullets)

gf.update_screen(ai_settings,screen,ship,aliens,bullets)

run_game()

游戏设置

import sys

import pygame

from Bullet import bullet

from alien import Alien

def check_key_down_events(event,ai_settings,screen,ship,bullets):

if event.key == pygame.K_RIGHT:

ship.moving_right = True

elif event.key == pygame.K_LEFT:

ship.moving_left = True

elif event.key==pygame.K_UP:

ship.moving_up=True

elif event.key==pygame.K_DOWN:

ship.moving_down=True

elif event.key==pygame.K_SPACE:

fire_bullet(ai_settings, screen, ship, bullets)

def check_key_up_events(event,ship):

if event.key == pygame.K_RIGHT:

ship.moving_right = False

elif event.key == pygame.K_LEFT:

ship.moving_left = False

elif event.key == pygame.K_UP:

ship.moving_up = False

elif event.key == pygame.K_DOWN:

ship.moving_down = False

def check_events(ai_settings,screen,ship,bullets):

"响应按键和鼠标事件"

for event in pygame.event.get():

if event.type==pygame.QUIT or pygame.K_q:

sys.exit()

elif event.type==pygame.KEYDOWN:

check_key_down_events(event,ai_settings,screen,ship,bullets)

elif event.type==pygame.KEYUP:

check_key_up_events(event,ship)

def update_screen(ai_settings,screen,ship,aliens,bullets):

# 每次循环都重绘屏幕

screen.fill(ai_settings.bg_color)

for bullet in bullets:

bullet.draw_bullet()

ship.blitme()

aliens.draw(screen)

pygame.display.flip()

def update_bullets(bullets):

bullets.update()

for bullet in bullets:

if bullet.rect.bottom < 0:

bullets.remove(bullet)

# 让最近绘制的屏幕可见

pygame.display.flip()

def fire_bullet(ai_settings,screen,ship,bullets):

if len(bullets) <= ai_settings.bullet_allowed:

new_bullet = bullet(ai_settings, screen, ship)

bullets.add(new_bullet)

def create_fleet(ai_settings,screen,aliens):

alien=Alien(ai_settings,screen)

alien_width=alien.rect.width

available_space_x=ai_settings.screen_width-alien_width*2

number_alien_x=int(available_space_x/(2*alien_width))

for alien_number in range(number_alien_x):

alien=Alien(ai_settings,screen)

alien.x=alien_width+2alien_widthalien_number

alien.rect.x=alien.x

aliens.add(alien)

class Settings:

def __init__(self):

"初始化游戏的设置"

#屏幕设置

self.screen_width=1200

self.screen_height=800

self.bg_color=(102,204,255)

self.ship_speed_factor=1.5

#子弹设置

self.bullet_speed_factor=2

self.bullet_width=1

self.bullet_height=15

self.bullet_color=60,60,60

self.bullet_allowed=3

class Settings:

def __init__(self):

"初始化游戏的设置"

#屏幕设置

self.screen_width=1200

self.screen_height=800

self.bg_color=(102,204,255)

self.ship_speed_factor=1.5

#子弹设置

self.bullet_speed_factor=2

self.bullet_width=1

self.bullet_height=15

self.bullet_color=60,60,60

self.bullet_allowed=3

基础

class Settings:

def __init__(self):

"初始化游戏的设置"

#屏幕设置

self.screen_width=1200

self.screen_height=800

self.bg_color=(102,204,255)

self.ship_speed_factor=1.5

#子弹设置

self.bullet_speed_factor=2

self.bullet_width=1

self.bullet_height=15

self.bullet_color=60,60,60

self.bullet_allowed=3

class Settings:

def __init__(self):

"初始化游戏的设置"

#屏幕设置

self.screen_width=1200

self.screen_height=800

self.bg_color=(102,204,255)

self.ship_speed_factor=1.5

#子弹设置

self.bullet_speed_factor=2

self.bullet_width=1

self.bullet_height=15

self.bullet_color=60,60,60

self.bullet_allowed=3

飞船

import pygame

class Ship():

def __init__(self,ai_settings,screen):

self.screen=screen

self.ai_setting=ai_settings

#加载飞船并获取其外接矩形

self.image=pygame.image.load("imagesšipb.bmp")

self.rect=self.image.get_rect()

self.screen_rect=self.screen.get_rect()

#将飞船放在屏幕底部中央

self.rect.centerx=self.screen_rect.centerx

self.rect.bottom=self.screen_rect.bottom

self.center_x=float(self.rect.centerx)

self.center_y=float(self.rect.centery)

#移动标志

self.moving_right=False

self.moving_left= False

self.moving_up=False

self.moving_down=False

def update(self):

if self.moving_right and self.rect.right

self.center_x+=self.ai_setting.ship_speed_factor

if self.moving_left and self.rect.left>0:

self.center_x-=self.ai_setting.ship_speed_factor

if self.moving_up and self.rect.top>0:

self.center_y-=self.ai_setting.ship_speed_factor

if self.moving_down and self.rect.bottom

self.center_y+=self.ai_setting.ship_speed_factor

self.rect.centerx=self.center_x

self.rect.centery=self.center_y

def blitme(self):

"在指定位置绘制飞船"

self.screen.blit(self.image,self.rect)

外星人

import pygame

from pygame.sprite import Sprite

class Alien(Sprite):

def __init__(self,ai_settings,screen):

super().__init__()

self.screen=screen

self.ai_settings=ai_settings

self.image=pygame.image.load("images/alien.bmp")

self.rect=self.image.get_rect()

self.rect.x=self.rect.width

self.rect.y=self.rect.height

self.x=float(self.rect.x)

def blitme(self):

self.screen.blit(self.image,self.rect)

子弹

rt pygame

from pygame.sprite import Sprite

class bullet(Sprite):

"一个对飞船发射的子弹进行管理的类"

def __init__(self,ai_settings,screen,ship):

super().__init__()

self.screen=screen

#在(0,0)处创建一个表示子弹的矩形，在设置正确的位置

self.rect=pygame.Rect(0,0,ai_settings.bullet_width,ai_settings.bullet_height)

self.rect.centerx=ship.rect.centerx

self.rect.top=ship.rect.top

#存储用小数表示的子弹位置

self.y=float(self.rect.y)

self.color=ai_settings.bullet_color

self.speed_factor=ai_settings.bullet_speed_factor

def update(self):

self.y-=self.speed_factor

self.rect.y=self.y

def draw_bullet(self):

pygame.draw.rect(self.screen,self.color,self.rect)