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# -*- coding: utf-8 -*-
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"""
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Created on Wed May 29 19:18:32 2024
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@author: keshen
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"""
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import random
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import pygame
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# 屏幕大小的常量
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SCREEN_RECT = pygame.Rect(0, 0, 480, 700)
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# 刷新的帧率
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FRAME_PER_SEC = 60
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# 创建敌机的定时器常量
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CREATE_ENEMY_EVENT = pygame.USEREVENT
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# 英雄发射子弹事件
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HERO_FIRE_EVENT = pygame.USEREVENT + 1
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class GameSprite(pygame.sprite.Sprite):
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"""飞机大战游戏精灵"""
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def __init__(self, image_name, speedx=1,speedy=1):
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# 调用父类的初始化方法
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super().__init__()
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# 定义对象的属性
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self.image = pygame.image.load(image_name)
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self.rect = self.image.get_rect()
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self.speedx = speedx
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self.speedy = speedy
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def update(self):
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# 在屏幕的垂直和水平方向上移动
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self.rect.y += self.speedy
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self.rect.x += self.speedx
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class Background(GameSprite):
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"""游戏背景精灵"""
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def __init__(self, is_alt=False):
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# 1. 调用父类方法实现精灵的创建(image/rect/speed)
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super().__init__("image/background.png")
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# 2. 判断是否是交替图像，如果是，需要设置初始位置
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if is_alt:
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self.rect.y = -self.rect.height
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def update(self):
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# 1. 调用父类的方法实现
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self.rect.y += self.speedy
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# 2. 判断是否移出屏幕，如果移出屏幕，将图像设置到屏幕的上方
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if self.rect.y >= SCREEN_RECT.height:
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self.rect.y = -self.rect.height
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class Enemy1(GameSprite):
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counted = 0
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#对死亡的Enemy1进行计数
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"""敌机精灵"""
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def __init__(self):
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# 1. 调用父类方法，创建敌机精灵，同时指定敌机图片
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super().__init__("image/enemy1.png",0,0)
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# 2. 指定敌机的初始随机速度 1 ~ 3
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self.speedy = random.randint(1, 3)
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# 3. 指定敌机的初始随机位置
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self.rect.bottom = 0
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max_x = SCREEN_RECT.width - self.rect.width
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self.rect.x = random.randint(0, max_x)
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def update(self):
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# 1.保持垂直方向的飞行，但不能调用父类方法，否则会斜着移动
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self.rect.y += self.speedy
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# 2. 判断是否飞出屏幕，如果是，需要从精灵组删除敌机
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if self.rect.y >= SCREEN_RECT.height:
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# print("飞出屏幕，需要从精灵组删除...")
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# kill方法可以将精灵从所有精灵组中移出，精灵就会被自动销毁
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self.kill()
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def __del__(self):
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print("敌机挂了 %s" % self.rect)
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Enemy1.counted+=1
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#用计数方法记录杀掉的敌机，每print一次count值就加1
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print("enemy1_count=%s"%self.counted)
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if 40>=Enemy1.counted>=20:
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self.speedx = random.randint(4, 7)
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elif 100>=Enemy1.counted>=40:
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self.speedx = random.randint(10, 20)
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elif Enemy1.counted>100:
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self.speedx = random.randint(200,300)
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#对不同的计数程度，赋予不同的难度，为减少玩家的疲劳感，我们特地在计数值达到100后，进入地狱难度
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pass
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class Enemy2(GameSprite):
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count = 0
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"""不同于enemy1的敌机精灵"""
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def __init__(self):
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# 1. 调用父类方法，创建敌机精灵，同时指定敌机图片
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super().__init__("image/enemy2.png",0,0)
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# 2. 指定敌机的初始随机速度 2 ~ 4
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self.speedy = random.randint(2,4)
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# 3. 指定敌机的初始随机位置
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self.rect.bottom = 0
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max_x = SCREEN_RECT.width - self.rect.width
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self.rect.x = random.randint(0, max_x)
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def update(self):
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# 1. 保持垂直方向的飞行
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self.rect.y += self.speedy
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# 2. 判断是否飞出屏幕，如果是，需要从精灵组删除敌机
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if self.rect.y >= SCREEN_RECT.height:
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# print("飞出屏幕，需要从精灵组删除...")
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# kill方法可以将精灵从所有精灵组中移出，精灵就会被自动销毁
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self.kill()
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def __del__(self):
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print("敌机挂了 %s" % self.rect)
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Enemy2.count+=1
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#用计数方法记录杀掉的敌机，每print一次count值就加1
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print("enemy2_count=%s"%self.count)
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if 40>=Enemy2.count>=20:
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self.speedx = random.randint(5, 8)
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elif 100>=Enemy2.count>=40:
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self.speedx = random.randint(15, 25)
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elif Enemy2.count>100:
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self.speedx = random.randint(200,300)
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#对不同的计数程度，赋予不同的难度，为减少玩家的疲劳感，我们特地在计数值达到100后，进入地狱难度
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pass
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class Enemy3(GameSprite):
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count = 0
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"""敌机作者精灵"""
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def __init__(self):
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# 1. 调用父类方法，创建敌机精灵，同时指定敌机图片
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super().__init__("image/r.png")#作者的图片
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# 2. 指定作者的初始随机速度 10~20 因为众所周知作者的速度是很快的，并且杀伤力极强
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self.speedy = random.randint(10, 20)
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# 3. 指定作者的初始随机位置
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self.rect.bottom = 0
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max_x = SCREEN_RECT.width - self.rect.width
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self.rect.x = random.randint(0, max_x)
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def update(self):
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# 1. 保持垂直方向的飞行
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self.rect.y += self.speedy
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# 2. 判断是否飞出屏幕，如果是，需要从精灵组删除作者
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if self.rect.y >= SCREEN_RECT.height:
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# print("飞出屏幕，需要从精灵组删除...")
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# kill方法可以将精灵从所有精灵组中移出，精灵就会被自动销毁
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self.kill()
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def __del__(self):
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print("作者好帅 %s" % self.rect)
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class Hero(GameSprite):
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"""英雄精灵"""
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def __init__(self):
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# 1. 调用父类方法，设置image&speed
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super().__init__("image/hero1.png", 0,0)
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# 2. 设置英雄的初始位置
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self.rect.centerx = SCREEN_RECT.centerx
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self.rect.bottom = SCREEN_RECT.bottom - 120
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# 3. 创建子弹的精灵组
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self.bullets = pygame.sprite.Group()
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def update(self):
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# 英雄在水平和竖直方向移动
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self.rect.x += self.speedx
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self.rect.y += self.speedy
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# 控制英雄不能离开屏幕
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if self.rect.x < 0:
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self.rect.x = 0
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elif self.rect.right > SCREEN_RECT.right:
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self.rect.right = SCREEN_RECT.right
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if self.rect.y < 0:
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self.rect.y = 0
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elif self.rect.height > SCREEN_RECT.height:
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self.rect.height = SCREEN_RECT.height
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def fire(self):
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print("发射子弹...")
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for i in (0, 1, 2):
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# 1. 创建子弹精灵
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bullet = Bullet()
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# 2. 设置精灵的位置
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bullet.rect.bottom = self.rect.y - i * 20
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bullet.rect.centerx = self.rect.centerx
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# 3. 将精灵添加到精灵组
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self.bullets.add(bullet)
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class Bullet(GameSprite):
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"""子弹精灵"""
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def __init__(self):
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# 调用父类方法，设置子弹图片，设置初始速度
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super().__init__("image/bullet1.png", 0,-4)#x方向速度为0，经测试该系统y轴方向向下，所以给予y方向初始速度-4
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def updates(self):
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# 让子弹沿垂直方向飞行
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self.rect.y += self.speedy
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# 判断子弹是否飞出屏幕
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if self.rect.bottom < 0:
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self.kill()
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def __del__(self):
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print("子弹被销毁...")
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class PlaneGame(object):
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"""飞机大战主游戏"""
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def __init__(self):
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print("游戏初始化")
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# 1. 创建游戏的窗口
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self.screen = pygame.display.set_mode(SCREEN_RECT.size)
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# 2. 创建游戏的时钟
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self.clock = pygame.time.Clock()
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# 3. 调用私有方法，精灵和精灵组的创建
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self.__create_sprites()
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# 4. 设置定时器事件 - 创建敌机 1s
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pygame.time.set_timer(CREATE_ENEMY_EVENT, 1000)
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pygame.time.set_timer(HERO_FIRE_EVENT, 500)
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def __create_sprites(self):
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# 创建背景精灵和精灵组
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bg1 = Background()
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bg2 = Background(True)
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self.back_group = pygame.sprite.Group(bg1, bg2)
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# 创建敌机的精灵组
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self.enemy_group = pygame.sprite.Group()
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# 创建英雄的精灵和精灵组
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self.hero = Hero()
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self.hero_group = pygame.sprite.Group(self.hero)
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def start_game(self):
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print("游戏开始...")
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while True:
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# 1. 设置刷新帧率
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self.clock.tick(FRAME_PER_SEC)
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# 2. 事件监听
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self.__event_handler()
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# 3. 碰撞检测
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self.__check_collide()
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# 4. 更新/绘制精灵组
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self.__update_sprites()
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# 5. 更新显示
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pygame.display.update()
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def __event_handler(self):
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for event in pygame.event.get():
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# 判断是否退出游戏
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if event.type == pygame.QUIT:
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PlaneGame.__game_over()
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elif event.type == CREATE_ENEMY_EVENT:
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print("敌机出场...")
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# 创建敌机精灵
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enemy = Enemy1()
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enemy1 = Enemy2()
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enemy2 = Enemy3()
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# 将敌机精灵添加到敌机精灵组
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self.enemy_group.add(enemy)
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self.enemy_group.add(enemy1)
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self.enemy_group.add(enemy2)
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elif event.type == HERO_FIRE_EVENT:
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self.hero.fire()
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elif event.type == pygame.KEYDOWN and event.key == pygame.K_RIGHT:
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print("向右移动...")
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# 使用键盘提供的方法获取键盘按键 - 按键元组
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keys_pressed = pygame.key.get_pressed()
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# 判断元组中对应的按键索引值 1
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if keys_pressed[pygame.K_RIGHT]:
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self.hero.speedx = 4
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self.hero.speedy = 0
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elif keys_pressed[pygame.K_LEFT]:
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self.hero.speedx = -4
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self.hero.speedy = 0
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elif keys_pressed[pygame.K_DOWN]:
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self.hero.speedx = 0
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self.hero.speedy = 4
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elif keys_pressed[pygame.K_UP]:
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self.hero.speedx = 0
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self.hero.speedy = -4
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else:
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self.hero.speedx = 0
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self.hero.speedy = 0
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def __check_collide(self):
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# 1. 子弹摧毁敌机
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pygame.sprite.groupcollide(self.hero.bullets, self.enemy_group, True, True)
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# 2. 敌机撞毁英雄
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enemies = pygame.sprite.spritecollide(self.hero, self.enemy_group, True)
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# 判断列表时候有内容
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if len(enemies) > 0:
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# 让英雄牺牲
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self.hero.kill()
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# 结束游戏
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PlaneGame.__game_over()
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def __update_sprites(self):#屏幕更新
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self.back_group.update()
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self.back_group.draw(self.screen)
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self.enemy_group.update()
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self.enemy_group.draw(self.screen)
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self.hero_group.update()
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self.hero_group.draw(self.screen)
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self.hero.bullets.update()
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self.hero.bullets.draw(self.screen)
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@staticmethod
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def __game_over():
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print("游戏结束")
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pygame.quit()
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exit()#游戏结束，退出游戏
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if __name__ == '__main__':
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# 创建游戏对象
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game = PlaneGame()
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# 启动游戏
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game.start_game()
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