[游戏开发]python进阶应用：飞机大作战小游戏完整代码实现（初级）

飞机大作战（初级）

完整代码如下：
注意，需要在对应同一个文件中放入相应的游戏需要用的图片及音效。否则可能报错

# 导入pygame库
import pygame
import random

# 设置常量
# 颜色
GREEN = (84, 255, 159)
BLACK = (0, 0, 0)
# 窗口大小
WIDTH, HEIGHT = 800, 600
# 自定义敌机出现事件
CREATE_ENEMY = pygame.USEREVENT

# 初始化
pygame.init()
# 创建游戏窗口
screen = pygame.display.set_mode((WIDTH, HEIGHT))
# 设置游戏名称
pygame.display.set_caption("飞机大战")
# 添加系统时钟
clock = pygame.time.Clock()
pygame.time.set_timer(CREATE_ENEMY, 2000)


class Hero(pygame.sprite.Sprite):
    # 初始化英雄
    def __init__(self, speed):
        pygame.sprite.Sprite.__init__(self)
        self.image = pygame.image.load("./image/plane.png")
        self.rect = self.image.get_rect()
        self.rect.width *= 0.6
        self.rect.height *= 0.6
        self.image = pygame.transform.scale(self.image, (self.rect.width, self.rect.height))
        self.rect.x = 100
        self.rect.y = 100
        self.speed = speed
        self.ready_to_fire = 0

    # 更新
    def update(self, *args):
        keys = pygame.key.get_pressed()
        if keys[pygame.K_UP]:
            self.rect.y -= self.speed
        if keys[pygame.K_DOWN]:
            self.rect.y += self.speed
        if keys[pygame.K_LEFT]:
            self.rect.x -= self.speed
        if keys[pygame.K_RIGHT]:
            self.rect.x += self.speed
        if keys[pygame.K_SPACE]:
            if self.ready_to_fire == 0:
                self.fire()
            self.ready_to_fire += 1
            if self.ready_to_fire > 5:
                self.ready_to_fire = 0
        else:
            self.ready_to_fire = 0

    def fire(self):
        # 发射子弹
        bullet = Bullet(10)
        bullet.rect.x = self.rect.right
        bullet.rect.centery = self.rect.centery
        bullet_group.add(bullet)


class Bullet(pygame.sprite.Sprite):
    # 初始化子弹
    def __init__(self, speed):
        pygame.sprite.Sprite.__init__(self)
        self.image = pygame.image.load("./image/bullet.png")
        self.rect = self.image.get_rect()
        self.speed = speed

    # 更新
    def update(self, *args):
        self.rect.x += self.speed
        if self.rect.x > WIDTH:
            self.kill()


class Enemy(pygame.sprite.Sprite):
    # 初始化敌人
    def __init__(self, speed):
        pygame.sprite.Sprite.__init__(self)
        self.image = pygame.image.load("./image/enemy1.png")
        self.rect = self.image.get_rect()
        self.rect.x = WIDTH
        self.rect.y = random.randint(0, HEIGHT)
        self.speed = speed

    # 更新
    def update(self, *args):
        self.rect.x -= self.speed
        if self.rect.x < 0:
            self.kill()


class Explode(pygame.sprite.Sprite):
    # 初始化爆炸
    def __init__(self):
        pygame.sprite.Sprite.__init__(self)
        self.images = [pygame.image.load("./image/explode" + str(i) + ".png") for i in range(1, 4) ]
        self.image_index = 0
        self.image = self.images[self.image_index]
        self.rect = self.image.get_rect()
        self.ready_to_change = 0

    def update(self, *args):
        if self.image_index < 2:
            self.ready_to_change += 1
            if self.ready_to_change % 4 == 0:
                self.image_index += 1
                self.image = self.images[self.image_index]
        else:
            self.kill()

class BackGround(pygame.sprite.Sprite):
    # 初始化背景
    def __init__(self):
        pygame.sprite.Sprite.__init__(self)
        self.image = pygame.image.load("./image/background.jpg")
        self.rect = self.image.get_rect()
        self.ready_to_move = 0

    # 更新
    def update(self, *args):
        if self.ready_to_move == 0:
            self.rect.x -= 1
            if self.rect.right <= 0:
                self.rect.x = self.rect.width
        if self.ready_to_move > 1:
            self.ready_to_move = 0
        else:
            self.ready_to_move += 1


# 初始化英雄
hero = Hero(4)
# 初始化背景
bg = BackGround()
bg2 = BackGround()
bg2.rect.x = bg2.rect.width

# 初始化精灵组
bg_group = pygame.sprite.Group()
hero_group = pygame.sprite.Group()
enemy_group = pygame.sprite.Group()
bullet_group = pygame.sprite.Group()
explode_group = pygame.sprite.Group()
# 添加到精灵组
hero_group.add(hero)
bg_group.add(bg, bg2)

# 游戏循环
while True:
    # 设置刷新频率
    clock.tick(60)
    # 玩家操作
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit()
            exit()
        if event.type == CREATE_ENEMY:
            enemy_group.add(Enemy(random.randint(1, 4)))
    # 游戏更新
    # 碰撞检测
    collision = pygame.sprite.groupcollide(enemy_group, bullet_group, True, True)
    for enemy in collision.keys():
        explode = Explode()
        explode.rect = enemy.rect
        explode_group.add(explode)
    # 屏幕更新
    screen.fill(BLACK)

    for group in [bg_group, hero_group, enemy_group, bullet_group, explode_group]:
        group.update()
        group.draw(screen)
    pygame.display.update()

本代码的不足：
飞机可以飞出屏幕；
飞机不会阵亡；
子弹为连发，但非为多排发；

效果如下图：

（注：代码为搬运，如有不妥，删，仅供学习参考使用）