"""
encoding=utf-8
Time    : 2018/7/26 20:23
Author  : 蘑菇plus
Email   : 497392071@qq.com
File    : 显示图形.py
Software: PyCharm
"""
import random
from random import randint
import pygame
#定义一个子弹类
class Bullet:
    def __init__(self):
        self.pos=[p1.pos[0]+46,p1.pos[1]-21]
        self.bullet_speed=25
    #定义移动方法
    def move(self):
        bullet = pygame.image.load(r'D:\成都Python学习\pycharm\day10-学生管理系统\8_03\picture\bullet1.png')
        screen.blit(bullet, (self.pos[0], self.pos[1]))
        self.pos[1]-= self.bullet_speed
#定义敌机类
class Enemy:
    def __init__(self,x_enemy_speed=0,y_enemy_speed=0):
        self.x_enemy_speed = random.randint(0,1)
        self.y_enemy_speed =2
        self.pos=[randint(0,360),randint(-50,-20)]
    def add_enemy(self):
        enemy = pygame.image.load('./picture/enemy1_5.png')
        screen.blit(enemy,(self.pos[0],self.pos[1]))
        self.pos[0] += self.x_enemy_speed
        self.pos[1] += self.y_enemy_speed
#定义一个战机类
class Plane():
    #定义战机属性
    def __init__(self):
        self.pos=[155,505]
        list1=[]
        self.list3=[]
    #添加战机
    def add_plane(self):
        her01=pygame.image.load('./picture/hero1.png')
        screen.blit(her01,(self.pos[0],self.pos[1]))

    #发射子弹
    def shoot(self):
        bullet = Bullet()
        bullet.pos=[self.pos[0]+46,self.pos[1]-21]
        self.list3.append(bullet)

#初始化pygame
pygame.init()
Up = 273
Down = 274
Left = 276
Right = 275
screen=pygame.display.set_mode((400,650))
pygame.display.set_caption('飞机大战')
background=pygame.image.load('./picture/background.png')
#将图片渲染到窗口上
screen.blit(background,(0,0))
def background():
    background=pygame.image.load('./picture/background.png')
    screen.blit(background, (0,0))



if __name__ == '__main__':
    x_speed=0
    y_speed=0
    #实例化飞机对象
    p1=Plane()
    #创建一个列表用来存放产生的敌机
    list2 = []
    #定义一个变量
    e_fre = 0
    b_fre=0
    while True:
        b_fre+=1
        if b_fre%20==0:
            p1.shoot()
        if b_fre>100:
            b_fre=0
        for bullet in p1.list3:
            bullet.move()
        #每50次，调用一次add_enemy()函数
        e_fre +=1
        if e_fre %50==0:
            e1 = Enemy()
            list2.append(e1)
        if e_fre>100:
            e_fre=0
        for e in list2:
            e.add_enemy()
        for event in pygame.event.get():
            if event.type==pygame.QUIT:
                exit()
            #判断键盘是否按下
            if event.type == pygame.KEYDOWN:
            #判断键盘方向
                if event.key == Up:
                    y_speed = -4
                    x_speed = 0
                elif event.key == Down:
                    y_speed = 4
                    x_speed = 0
                elif event.key == Left:
                    y_speed = 0
                    x_speed = -4
                elif event.key == Right:
                    x_speed = 4
                    y_speed = 0
            #判断键盘按键
            if event.type==pygame.KEYUP:
                    y_speed=0
                    x_speed=0
        #判断飞机是否飞出界面
        p1.pos[0] += x_speed
        p1.pos[1] += y_speed
        #判断飞机是否飞出边界
        if p1.pos[0] + 100 >= 400:
            p1.pos[0] -= 4
        if p1.pos[1] + 124 >= 650:
            p1.pos[1] -= 4
        if p1.pos[0]<=0:
            p1.pos[0]+=4
        if p1.pos[1]<=0:
            p1.pos[1]+=4


        #调用add_plane函数产生战机
        p1.add_plane()

        for bullet in p1.list3:
            for e1 in list2:
                w=-9<=(bullet.pos[0]-e1.pos[0])<=91
                h=-21<=(bullet.pos[1]-e1.pos[1])<=91
                if w and h:
                    list2.remove(e1)
        for e1 in list2:
            w1 = -51<=p1.pos[0]-e1.pos[0]<=49
            h1= -39<=p1.pos[1]-e1.pos[1]<=85
            if w1 and h1:
                exit()
        #检测子弹是否飞出边界，如果非
        for bullet in p1.list3:
            print(p1.list3)
            if bullet.pos[1]<=-22:
                p1.list3.remove(bullet)
        pygame.display.update()
        background()