Python飞机大战代码

Python飞机大战代码

plane_main.py文件

import pygame
from plane_sprites import *


class PlaneGame(object):
    def __init__(self):
        print("游戏初始化")
        self.screen = pygame.display.set_mode(SCREEN_RECT.size)
        self.clock = pygame.time.Clock()
        self.__create_sprites()
        pygame.time.set_timer(CREATE_ENEMY_EVENT, 1000)
        pygame.time.set_timer(HERO_FIRE_EVENT, 500)

    def __create_sprites(self):

        bg1 = Background()
        bg2 = Background(True)

        self.back_group = pygame.sprite.Group(bg1, bg2)

        self.enemy_group = pygame.sprite.Group()

        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_handler()
            self.__check_collide()
            self.__update_sprites()
            pygame.display.update()

    def __event_handler(self):

        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                PlaneGame.__game_over()
            elif event.type == CREATE_ENEMY_EVENT:
                # print("敌机出场。。。")
                enemy = Enemy()
                self.enemy_group.add(enemy)
            # elif event.type == pygame.KEYDOWN and event.key == pygame.K_RIGHT:
            #     print("向右移动。。。")
            elif event.type == HERO_FIRE_EVENT:
                self.hero.fire()

        keys_pressed = pygame.key.get_pressed()
        if keys_pressed[pygame.K_RIGHT]:
            self.hero.speed = 2
        elif keys_pressed[pygame.K_LEFT]:
            self.hero.speed = -2
        else:
            self.hero.speed = 0

    def __check_collide(self):
        pygame.sprite.groupcollide(self.hero.bullets, self.enemy_group, True, True)
        enemies = pygame.sprite.spritecollide(self.hero, self.enemy_group, True)
        if len(enemies) > 0:
            self.hero.kill()
            PlaneGame.__game_over()

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

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


if __name__ == '__main__':
    game = PlaneGame()
    game.start_game()

plane_sprites.py文件

import random
import pygame

SCREEN_RECT = pygame.Rect(0, 0, 480, 700)
FRAME_PER_SEC = 60
CREATE_ENEMY_EVENT = pygame.USEREVENT
HERO_FIRE_EVENT = pygame.USEREVENT + 1


class GameSprite(pygame.sprite.Sprite):

    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()
        if self.rect.y >= SCREEN_RECT.height:
            self.rect.y = -self.rect.height


class Enemy(GameSprite):
    def __init__(self):
        super().__init__("./images/enemy1.png")
        self.speed = random.randint(1, 3)
        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:
            # print("飞出屏幕，需要从精灵组删除。。。")

            self.kill()

    def __del__(self):
        # print("敌机挂了 %s" % 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.bullets = pygame.sprite.Group()

    def update(self):
        self.rect.x += self.speed
        if self.rect.x < 0:
            self.rect.x = 0
        elif self.rect.right > SCREEN_RECT.right:
            self.rect.right = SCREEN_RECT.right

    def fire(self):
        print("发射子弹。。。")
        for i in (0, 1, 2):
            bullet = Bullet()
            bullet.rect.bottom = self.rect.y - i * 20
            bullet.rect.centerx = self.rect.centerx
            self.bullets.add(bullet)


class Bullet(GameSprite):

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

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

    def __del__(self):
        print("子弹被销毁。。。")

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