[python]代码库import pygame

from random import randint

import math

print("按下空格建发射子弹")

pygame.init()

screen = pygame.display.set_mode((800, 600))

pygame.display.set_caption("飞机大战")

icon = pygame.image.load('ufo.png')

pygame.display.set_icon(icon)

bgimg = pygame.image.load('bg.png')

enemyimg = pygame.image.load('enemy.png')

pygame.mixer.music.load('bg.wav')

pygame.mixer.music.play(-1)

bomb_sound = pygame.mixer.Sound('exp.wav')

playerimg = pygame.image.load('player.png')

playerX = 400

playerY = 500

playStep = 0

score = 0

font = pygame.font.Font('freesansbold.ttf', 35)

def show_score():

text = f"score:{score}"

score_render = font.render(text, True, (0, 200, 255))

screen.blit(score_render, (10, 10))

is_over = False

over_font = pygame.font.Font('freesansbold.ttf', 64)

def check_is_over():

if is_over:

text = "Game Over"

render = over_font.render(text, True, (255, 50, 10))

screen.blit(render, (230, 250))

number_of_enemies = 10

class Enemy():

def __init__(self):

self.img = pygame.image.load('enemy.png')

self.x = randint(100, 600)

self.y = randint(50, 250)

self.step = randint(2, 5)

def reset(self):

self.x = randint(100, 600)

self.y = randint(50, 250)

Enemies = []

for i in range(number_of_enemies):

Enemies.append(Enemy())

def show_enemy():

global is_over

for e in Enemies:

screen.blit(e.img, (e.x, e.y))

e.x += e.step

if (e.x > 736 or e.x < 0):

e.step *= -1

e.y += 40

if e.y > 450:

is_over = True

print("游戏结束啦！")

Enemies.clear()

def distance(bx, by, ex, ey):

a = bx - ex

b = by - ey

return math.sqrt(a*a + b*b)

bullets = []

class Bullet():

def __init__(self):

self.img = pygame.image.load('bullet.png')

self.x = playerX

self.y = playerY + 10

self.step = 10

def hit(self):

global score

for e in Enemies:

if (distance(self.x, self.y, e.x, e.y) < 40):

bomb_sound.play()

bullets.remove(self)

e.reset()

score += 1

def show_bullet():

for bull in bullets:

screen.blit(bull.img, (bull.x, bull.y))

bull.hit()

bull.y -= bull.step

if bull.y < 0:

bullets.remove(bull)

def distance_two(bx, by, ex, ey):

a = bx - ex

b = by - ey

return math.sqrt(a*a + b*b)

bullets_two = []

class Bullet_two():

def __init__(self):

self.img = pygame.image.load('bullet.png')

self.x = playerX + 30

self.y = playerY + 10

self.step = 10

def hit_two(self):

for d in Enemies:

if (distance_two(self.x, self.y, d.x, d.y) < 40):

bomb_sound.play()

bullets_two.remove(self)

d.reset()

def show_bullet_two():

for b in bullets_two:

screen.blit(b.img, (b.x, b.y))

b.hit_two()

b.y -= b.step

if b.y < 0:

bullets_two.remove(b)

def move_player():

global playerX

playerX += playStep

while playerX > 736:

playerX -= 6

while playerX < 0:

playerX +=6

running = True

while running:

screen.blit(bgimg, (0, 0))

show_score()

for event in pygame.event.get():

if event.type == pygame.QUIT:

running = False

if event.type == pygame.KEYDOWN:

if event.key == pygame.K_RIGHT:

playStep = 6

elif event.key == pygame.K_LEFT:

playStep = -6

elif event.key == pygame.K_SPACE:

print("发射子弹....")

bullets.append(Bullet())

bullets_two.append(Bullet_two())

if event.type == pygame.KEYUP:

playStep = 0

screen.blit(playerimg, (playerX, playerY))

move_player()

show_bullet()

show_bullet_two()

show_enemy()

check_is_over()

pygame.display.update()

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