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【作品源代码】

#coding:utf-8
import pygame,sys,random,time,turtle
from pygame.locals import*
#初始化pygame环境
pygame.init()
x = 80
y = 27
import os

os.environ['SDL_VIDEO_WINDOW_POS'] = "%d,%d" % (x, y)
#创建一个长宽分别为480/650窗口
canvas = pygame.display.set_mode((1500, 600))
canvas.fill((255,255,255))
#设置窗口标题
pygame.display.set_caption("抗击疫情")
bg=pygame.image.load("img/bg.png")
h = pygame.image.load("img/hero.png")
b = pygame.image.load("img/b.png")
h1 = pygame.image.load("img/hero1.png")
b1 = pygame.image.load("img/b1.png")
v = pygame.image.load("img/v.png")
vb = pygame.image.load("img/vb.png")
d = pygame.image.load("img/d.png")
def handleEvent():
    for event in pygame.event.get():
        if event.type == pygame.QUIT or event.type == KEYDOWN and event.key == K_ESCAPE:
            pygame.quit()
            sys.exit()    
        if event.type == KEYDOWN and event.key == K_SPACE:
            pygame.key.set_repeat(10, 10)
            GameVar.h.shoot()
        if event.type == KEYDOWN and event.key == K_a:  
            GameVar.h.x -= 10
            GameVar.h.img= h1
        if event.type == KEYDOWN and event.key == K_d:
            GameVar.h.x += 10
            GameVar.h.img= h

def renderText(text, position, view=canvas):
    # 设置字体样式和大小
    my_font = pygame.font.Font("font3.ttf", 100)
    # 渲染文字
    text = my_font.render(text, True, (0, 0, 0)) 
    view.blit(text, position)


def isActionTime(lastTime, interval):
    if lastTime == 0:
        return True
    currentTime = time.time()
    return currentTime - lastTime >= interval
class Enemy():
    def __init__(self,x):
        self.x = x
        self.y = 500
        self.width = 100
        self.height = 100
        self.life = 200
        self.atracct = 10
        self.img = v
        self.canDelete = False
    def paint(self):
        canvas.blit(self.img,(self.x, self.y))
    def move(self):
        if self.x > GameVar.h.x:
            self.x -= 3
        else:
            self.x += 3

    def hit(self, c):
        return c.x > self.x - c.width and c.x < self.x + self.width and c.y > self.y - c.height and c.y < self.y + self.height

    # 处理碰撞发生后要做的事
    def 喵(self):
        for i in GameVar.bullets:
            self.life -= i.atracct
        if self.life <= 0:
            self.canDelete = True


class Hero():
    def __init__(self):
        self.x = 750
        self.y = 420
        self.width = 156
        self.height = 180
        self.life = 800
        self.img = h
        self.canDelete = False

    def paint(self):
        canvas.blit(self.img, (self.x, self.y))

    def shoot(self):
        if self.img == h1 :
            GameVar.bullets.append(Bullet(self.x + self.width / 2, self.y+100,b1,-15))
        else:
            GameVar.bullets.append(Bullet(self.x + self.width / 2, self.y+100,b,15))

    def hit(self, c):
        return c.x > self.x - c.width and c.x < self.x + self.width and c.y > self.y - c.height and c.y < self.y + self.height

    # 处理碰撞发生后要做的事
    def 喵(self):
        for i in GameVar.enemies:
            self.life -= 20
        if self.life == 0:
            # 生命值为0时将down置为True
            self.canDelete = True


class Bullet():
    def __init__(self,x,y,img,speed):
        self.x = x
        self.y = y
        self.width = 41
        self.height = 30
        self.img = img
        self.speed = speed
        self.canDelete = False
        self.life = 1
        self.atracct = 20
    def paint(self):
        canvas.blit(self.img, (self.x, self.y))
    def move(self):
        self.x+=self.speed

    def hit(self, c):
        return c.x >= self.x - c.width and c.x < self.x + self.width and c.y > self.y - c.height and c.y < self.y + self.height

    # 处理碰撞发生后要做的事
    def 喵(self):
        self.life -= 1
        if self.life == 0:
            # 生命值为0时将down置为True
            self.canDelete  = True





def componentEnter():
    if not isActionTime(GameVar.lastTime, GameVar.interval):
        return
    GameVar.lastTime = time.time()
    x = random.randint(1,2)
    if x==1:
        x=-200
    else:
        x = 1700
    GameVar.enemies.append(Enemy(x))
def compaint():
    canvas.blit(bg,(0,0))
    for enemy in GameVar.enemies:  
        enemy.paint()
    GameVar.h.paint()
    for bullet in GameVar.bullets:
        bullet.paint()
    #  renderText('score'+str(GameVar.score), (780 + 305, 25))
    #  renderText('life'+str(GameVar.h.life), (780 + 305, 58))
def commove():
    for enemy in GameVar.enemies:
        enemy.move()
    for b in GameVar.bullets:
        b.move()


def componentStep():
    # 调用sky对象的step方法
    GameVar.sky.step()
    for enemy in GameVar.enemies:
        enemy.step()
    # 子弹移动
    for bullet in GameVar.bullets:
        bullet.step()


# 检测组件碰撞
def checkHit():
    # 判断敌飞机是否和英雄机相撞
    for enemy in GameVar.enemies:
        # 如果当前飞机已经喵亡则换下一架飞机
        if enemy.canDelete == True:
            GameVar.enemies.remove(enemy)
            GameVar.score +=5
        if GameVar.h.hit(enemy):
            enemy.life = 0
            enemy.喵()
            GameVar.h.喵() 
        for bullet in GameVar.bullets:
            # 如果当前子弹是无效的子弹则换下一颗子弹
            if bullet.canDelete == True:
                GameVar.bullets.remove(bullet)

            if enemy.hit(bullet):
                enemy.喵()
                bullet.喵()


class GameVar(object):
    enemies = []
    bullets = []
    lastTime = 0
    interval = 1
    h = Hero()
    score = 0
while True:
    if GameVar.h.life>0:
        componentEnter()
        compaint()
        commove()
        checkHit()
    else:
        canvas.fill((255,255,255))
        renderText('游戏结束,你最终的得分为'+str(GameVar.score), (100, 250))
#处理关闭游戏
    handleEvent()
    #刷新屏幕
    pygame.display.update()
    #延迟处理
    pygame.time.delay(15)

 

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