Python项目实战——“飞机大战”

主文件：

from plane_sprites import *
import pygame


class PlaneGame:
    """主游戏类"""
    grade = 0

    def __init__(self):
        print("游戏初始化")

        # 创建游戏窗口对象
        self.screen = pygame.display.set_mode(SCREEN_RECT.size)
        # 创建时钟对象
        self.clock = pygame.time.Clock()
        # 调用私有方法创建精灵和精灵组
        self.__create_sprites()

        # 添加创建敌机的定时器
        pygame.time.set_timer(CREATE_ENEMY_EVENT, 1000)
        # 添加发射子弹的定时器
        pygame.time.set_timer(HERO_FIRE_EVENT, 300)

    # 创建精灵和精灵组
    def __create_sprites(self):
        # 创建背景精灵组
        background1 = BackGround()
        background2 = BackGround(True)
        self.back_group = pygame.sprite.Group(background1, background2)

        # 创建敌机精灵组
        self.enemy_group = pygame.sprite.Group()

        # 创建英雄的精灵和精灵组
        self.hero = Hero()
        self.hero_group = pygame.sprite.Group(self.hero)

    def start_game(self):
        print("游戏开始")

        while True:
            self.clock.tick(FRAME_PER_SEC)
            self.__event_hand()
            self.__check_collide()
            self.__update_sprites()
            pygame.display.update()

    # 事件监听
    def __event_hand(self):
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                print("退出游戏...")
                pygame.quit()
                exit()
            elif event.type == CREATE_ENEMY_EVENT:
                enemy = Enemy()
                self.enemy_group.add(enemy)
            elif event.type == HERO_FIRE_EVENT:
                self.hero.fire()

        # 判断用户按下的按键
        keys_pressed = pygame.key.get_pressed()
        if keys_pressed[pygame.K_RIGHT]:
            self.hero.speed = 3
        elif keys_pressed[pygame.K_LEFT]:
            self.hero.speed = -3
        else:
            self.hero.speed = 0

    # 碰撞检测
    def __check_collide(self):
        bullets = pygame.sprite.groupcollide(self.hero.bullet_group, self.enemy_group, True, True)
        if len(bullets) > 0:
            PlaneGame.grade += 1

        enemis = pygame.sprite.spritecollide(self.hero, self.enemy_group, True)

        if len(enemis) > 0:
            self.hero.kill()
            print("英雄阵亡。。。")
            print("您的得分为：%d" % PlaneGame.grade)
            pygame.quit()
            exit()

    # 更新精灵组/精灵
    def __update_sprites(self):
        self.back_group.update()
        self.back_group.draw(self.screen)

        self.enemy_group.update()
        self.enemy_group.draw(self.screen)

        self.hero_group.update()
        self.hero_group.draw(self.screen)

        self.hero.bullet_group.update()
        self.hero.bullet_group.draw(self.screen)

    @staticmethod
    def __game_over():
        print("游戏结束")
        pygame.quit()
        exit()


if __name__ == '__main__':

    game = PlaneGame()

    # 启动游戏
    game.start_game()

工具文件：

import random
import pygame

# 屏幕大小的常量
SCREEN_RECT = pygame.Rect(0, 0, 480, 700)
# 刷新的帧率
FRAME_PER_SEC = 60
# 创建敌机定时器事件常量
CREATE_ENEMY_EVENT = pygame.USEREVENT
# 发射子弹定时器事件常量
HERO_FIRE_EVENT = pygame.USEREVENT + 1


class GameSprite(pygame.sprite.Sprite):
    """游戏精灵"""
    def __init__(self, image_name, speed=1):

        super().__init__()
        self.image = pygame.image.load(image_name)
        self.rect = self.image.get_rect()
        self.speed = speed

    def update(self):
        self.rect.y += self.speed


class BackGround(GameSprite):

    def __init__(self, is_alt=False):
        super().__init__("./images/background.png")
        if is_alt:
            self.rect.y = -self.rect.height

    def update(self):
        super().update()
        # 判断是否超出屏幕
        if self.rect.y >= SCREEN_RECT.height:
            self.rect.y = -self.rect.height


class Enemy(GameSprite):
    def __init__(self):
        super().__init__("./images/enemy1.png")
        # 指定敌机速度
        self.speed = random.randint(1, 3)
        # 指定敌机初始位置
        self.rect.bottom = 0
        max_x = SCREEN_RECT.width - self.rect.width
        self.rect.x = random.randint(0, max_x)

    def update(self):
        super().update()
        if self.rect.y >= SCREEN_RECT.height:
            self.kill()

    def __del__(self):
        # print("%s 被销毁了" % self.rect)
        pass


class Hero(GameSprite):

    def __init__(self):
        super().__init__("./images/me1.png", 0)
        self.rect.centerx = SCREEN_RECT.centerx
        self.rect.bottom = SCREEN_RECT.bottom - 120

        self.bullet_group = pygame.sprite.Group()

    def update(self):
        self.rect.x += self.speed

        if self.rect.left < SCREEN_RECT.left:
            self.rect.left = SCREEN_RECT.left
        elif self.rect.right > SCREEN_RECT.right:
            self.rect.right = SCREEN_RECT.right

    def fire(self):
        bullet = Bullet()
        bullet.rect.y = self.rect.y
        bullet.rect.centerx = self.rect.centerx
        self.bullet_group.add(bullet)


class Bullet(GameSprite):

    def __init__(self):
        super().__init__("./images/bullet1.png", -2)

    def update(self):
        super().update()
        if self.rect.y < 0:
            self.kill()

项目中使用到的图片资源：
链接：https://pan.baidu.com/s/1Md0c80fxaa5hK9kHrcpvqA
提取码：1781
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