day 6 敌机

1.显示敌机

#-*- coding:utf-8 -*-
import pygame
import time
from pygame.locals import *

class HeroPlane(object):
    '''飞机类'''

    def __init__(self,screen_temp):
        self.x = 210
        self.y = 500
        self.screen = screen_temp
        self.image = pygame.image.load("./feiji/hero1.png")
        self.bullent_list = [] #存放发射出去的子弹的引用

    def display(self):
        self.screen.blit(self.image,(self.x,self.y))
        for bullent in self.bullent_list:
            bullent.display()
            bullent.move()   

    def move_left(self):
        self.x -= 5

    def move_right(self):
        self.x += 5

    def fire(self):
        self.bullent_list.append(Bullent(self.screen,self.x,self.y))

class EnemyPlane(object):
    '''敌人的飞机类'''

    def __init__(self,screen_temp):
        self.x = 0
        self.y = 0
        self.screen = screen_temp
        self.image = pygame.image.load("./feiji/enemy0.png")
       # self.bullent_list = [] #存放发射出去的子弹的引用

    def display(self):
        self.screen.blit(self.image,(self.x,self.y))
       # for bullent in self.bullent_list:
       #     bullent.display()
        #    bullent.move()   

    def move_left(self):
        self.x -= 5

    def move_right(self):
        self.x += 5

    def fire(self):
        self.bullent_list.append(Bullent(self.screen,self.x,self.y))

class Bullent(object):
    def __init__(self,screen_temp,x,y):
        self.x = x+40
        self.y = y-20
        self.screen = screen_temp
        self.image = pygame.image.load("./feiji/bullet.png")

    def display(self):
        self.screen.blit(self.image,(self.x,self.y))

    def move(self):
        self.y -= 10

def key_control(hero_temp):
     ## 检测键盘
    #获取事件，比如按键等
    for event in pygame.event.get():
        #判断是否是点击了退出按钮
        if event.type == QUIT:
            print("exit")
            exit()
        #判断是否是按下了键
        elif event.type == KEYDOWN:
            #检测按键是否是a或者left
            if event.key == K_a or event.key == K_LEFT:
                print('left')
                hero_temp.move_left()

            #检测按键是否是d或者right
            elif event.key == K_d or event.key == K_RIGHT:
                print('right')
                hero_temp.move_right()

            #检测按键是否是空格键
            elif event.key == K_SPACE:
                print('space')
                hero_temp.fire()

def main():
    #1.创建窗口
    screen = pygame.display.set_mode((480,652),0,32) #x=480,y=852  #0,32固定参数    

    #2.创建一个背景图片
    background = pygame.image.load("./feiji/background.png").convert()

    #3.创建飞机图片
    hero = HeroPlane(screen)

    #4。创建一个敌机
    enemy = EnemyPlane(screen)

    ##3. 把背景图片放到窗口中显示
    while True:
        screen.blit(background,(0,0))#图片顶点在窗口的位置
        hero.display()

        enemy.display()
        ## 检测键盘
        key_control(hero)
        pygame.display.update()
        time.sleep(0.02)  #占用cpu太多，降低点

if __name__ == "__main__":
    main()

2.飞机左右移动

　　　　

####   飞机不动了

 def move(self):
     if self.x <480-50:
         self.x += 5
     elif self == 480-50:
         self.x -= 5

#-*- coding:utf-8 -*-
import pygame
import time
from pygame.locals import *

class HeroPlane(object):
    '''飞机类'''

    def __init__(self,screen_temp):
        self.x = 210
        self.y = 500
        self.screen = screen_temp
        self.image = pygame.image.load("./feiji/hero1.png")
        self.bullent_list = [] #存放发射出去的子弹的引用

    def display(self):
        self.screen.blit(self.image,(self.x,self.y))
        for bullent in self.bullent_list:
            bullent.display()
            bullent.move()   

    def move_left(self):
        self.x -= 5

    def move_right(self):
        self.x += 5

    def fire(self):
        self.bullent_list.append(Bullent(self.screen,self.x,self.y))

class EnemyPlane(object):
    '''敌人的飞机类'''

    def __init__(self,screen_temp):
        self.x = 0
        self.y = 0
        self.screen = screen_temp
        self.image = pygame.image.load("./feiji/enemy0.png")
       # self.bullent_list = [] #存放发射出去的子弹的引用
        self.direct = "right"

    def display(self):
        self.screen.blit(self.image,(self.x,self.y))
       # for bullent in self.bullent_list:
       #     bullent.display()
        #    bullent.move()   

    def move(self):
       # if self.x <480-50:
        #    self.x += 5
        #elif self == 480-50:
        #    self.x -= 5
        if self.direct == "right":
            self.x += 5
        elif self.direct == "left":
            self.x -= 5

        if self.x == 480-50:
            self.direct = "left"
        elif self.x == 0 :
            self.direct = "right"

    def fire(self):
        self.bullent_list.append(Bullent(self.screen,self.x,self.y))

class Bullent(object):
    def __init__(self,screen_temp,x,y):
        self.x = x+40
        self.y = y-20
        self.screen = screen_temp
        self.image = pygame.image.load("./feiji/bullet.png")

    def display(self):
        self.screen.blit(self.image,(self.x,self.y))

    def move(self):
        self.y -= 10

def key_control(hero_temp):
     ## 检测键盘
    #获取事件，比如按键等
    for event in pygame.event.get():
        #判断是否是点击了退出按钮
        if event.type == QUIT:
            print("exit")
            exit()
        #判断是否是按下了键
        elif event.type == KEYDOWN:
            #检测按键是否是a或者left
            if event.key == K_a or event.key == K_LEFT:
                print('left')
                hero_temp.move_left()

            #检测按键是否是d或者right
            elif event.key == K_d or event.key == K_RIGHT:
                print('right')
                hero_temp.move_right()

            #检测按键是否是空格键
            elif event.key == K_SPACE:
                print('space')
                hero_temp.fire()

def main():
    #1.创建窗口
    screen = pygame.display.set_mode((480,652),0,32) #x=480,y=852  #0,32固定参数    

    #2.创建一个背景图片
    background = pygame.image.load("./feiji/background.png").convert()

    #3.创建飞机图片
    hero = HeroPlane(screen)

    #4。创建一个敌机
    enemy = EnemyPlane(screen)

    ##3. 把背景图片放到窗口中显示
    while True:
        screen.blit(background,(0,0))#图片顶点在窗口的位置
        hero.display()
        enemy.display()
        enemy.move()#调用敌机的移动方法
        ## 检测键盘
        pygame.display.update()
        key_control(hero)
        time.sleep(0.02)  #占用cpu太多，降低点

if __name__ == "__main__":
    main()

3.代码优化：子弹消失

#-*- coding:utf-8 -*-
import pygame
import time
from pygame.locals import *

class HeroPlane(object):
    '''飞机类'''

    def __init__(self,screen_temp):
        self.x = 210
        self.y = 500
        self.screen = screen_temp
        self.image = pygame.image.load("./feiji/hero1.png")
        self.bullent_list = [] #存放发射出去的子弹的引用

    def display(self):
        self.screen.blit(self.image,(self.x,self.y))
        for bullent in self.bullent_list:
            bullent.display()
            bullent.move()
            if bullent.judge():  #判断子弹是否越界
                self.bullent_list.remove(bullent)

    def move_left(self):
        self.x -= 5

    def move_right(self):
        self.x += 5

    def fire(self):
        self.bullent_list.append(Bullent(self.screen,self.x,self.y))

class EnemyPlane(object):
    '''敌人的飞机类'''

    def __init__(self,screen_temp):
        self.x = 0
        self.y = 0
        self.screen = screen_temp
        self.image = pygame.image.load("./feiji/enemy0.png")
       # self.bullent_list = [] #存放发射出去的子弹的引用
        self.direct = "right"

    def display(self):
        self.screen.blit(self.image,(self.x,self.y))
       # for bullent in self.bullent_list:
       #     bullent.display()
        #    bullent.move()   

    def move(self):
       # if self.x <480-50:
        #    self.x += 5
        #elif self == 480-50:
        #    self.x -= 5
        if self.direct == "right":
            self.x += 5
        elif self.direct == "left":
            self.x -= 5

        if self.x == 480-50:
            self.direct = "left"
        elif self.x == 0 :
            self.direct = "right"

    def fire(self):
        self.bullent_list.append(Bullent(self.screen,self.x,self.y))

class Bullent(object):
    def __init__(self,screen_temp,x,y):
        self.x = x+40
        self.y = y-20
        self.screen = screen_temp
        self.image = pygame.image.load("./feiji/bullet.png")

    def display(self):
        self.screen.blit(self.image,(self.x,self.y))

    def move(self):
        self.y -= 10

    def judge(self):
        if self.y < 200:            #让效果提前显示
            return True
        else:
            return False

def key_control(hero_temp):
     ## 检测键盘
    #获取事件，比如按键等
    for event in pygame.event.get():
        #判断是否是点击了退出按钮
        if event.type == QUIT:
            print("exit")
            exit()
        #判断是否是按下了键
        elif event.type == KEYDOWN:
            #检测按键是否是a或者left
            if event.key == K_a or event.key == K_LEFT:
                print('left')
                hero_temp.move_left()

            #检测按键是否是d或者right
            elif event.key == K_d or event.key == K_RIGHT:
                print('right')
                hero_temp.move_right()

            #检测按键是否是空格键
            elif event.key == K_SPACE:
                print('space')
                hero_temp.fire()

def main():
    #1.创建窗口
    screen = pygame.display.set_mode((480,652),0,32) #x=480,y=852  #0,32固定参数    

    #2.创建一个背景图片
    background = pygame.image.load("./feiji/background.png").convert()

    #3.创建飞机图片
    hero = HeroPlane(screen)

    #4。创建一个敌机
    enemy = EnemyPlane(screen)

    ##3. 把背景图片放到窗口中显示
    while True:
        screen.blit(background,(0,0))#图片顶点在窗口的位置
        hero.display()
        enemy.display()
        enemy.move()#调用敌机的移动方法
        ## 检测键盘
        pygame.display.update()
        key_control(hero)
        time.sleep(0.02)  #占用cpu太多，降低点

if __name__ == "__main__":
    main()

bug：不要在遍历list列表的时候删除元素

In [1]: a = [11,22,33,44,55,66]

In [2]: for i in a:
   ...:     if i == 33 or i == 44:
   ...:         a.remove(i)
   ...:         

In [3]: a
Out[3]: [11, 22, 44, 55, 66]           #44没有删除，漏掉了

　　

###   找个空list

In [1]: a = [11,22,33,44,55,66]

In [2]: b = []

In [3]: for i in a:
   ...:     if i == 33 or i == 44:    #遍历列表时，把要删除的添加到空列表
   ...:         b.append(i)
   ...:         

In [4]: b
Out[4]: [33, 44]

In [5]: for i in b:                    #下次遍历list列表b再删除
   ...:     a.remove(i)
   ...:     

In [6]: a
Out[6]: [11, 22, 55, 66]

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