打飞机

# -*- coding: utf-8 -*-
import pygame
from sys import exit
class Bullet:
    def __init__(self):
        #初始化成员变量，x，y，image
        self.x = 0
        self.y = -1
        self.image = pygame.image.load(‘bullet.png‘).convert_alpha()

    def move(self):
        #处理子弹的运动
        if self.y < 0:
            mouseX, mouseY = pygame.mouse.get_pos()
            self.x = mouseX - self.image.get_width() / 2
            self.y = mouseY - self.image.get_height() / 2
        else:
            self.y -= 5
pygame.init()
screen = pygame.display.set_mode((450, 800), 0, 32)
pygame.display.set_caption("Hello, World!")
background = pygame.image.load(‘back.jpg‘).convert()
plane = pygame.image.load(‘plane.png‘).convert_alpha()
bullet = Bullet()
#加载子弹图像
#初始化子弹位置
while True:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit()
            exit()
    screen.blit(background, (0,0))
    bullet.move()
    screen.blit(bullet.image, (bullet.x, bullet.y))
    #把子弹画到屏幕上
    x, y = pygame.mouse.get_pos()
    x-= plane.get_width() / 2
    y-= plane.get_height() / 2
    screen.blit(plane, (x, y))
    pygame.display.update()

# -*- coding: utf-8 -*-
import pygame
#导入pygame库
from sys import exit
#向sys模块借一个exit函数用来退出程序
pygame.init()
#初始化pygame,为使用硬件做准备
screen = pygame.display.set_mode((600, 170), 0, 32)
#创建了一个窗口,窗口大小和背景图片大小一样
pygame.display.set_caption("Hello, World!")
#设置窗口标题
background = pygame.image.load(‘0.jpg‘).convert()
#加载并转换图像
plane = pygame.image.load(‘2.jpg‘).convert()
while True:
#游戏主循环
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            #接收到退出事件后退出程序
            pygame.quit()
            exit()
 
    screen.blit(background, (0,0))
    x, y = pygame.mouse.get_pos()
    #获取鼠标位置
    x-= plane.get_width() / 2
    y-= plane.get_height() / 2
    #计算飞机的左上角位置
    screen.blit(plane, (x,y))
    #把飞机画到屏幕上
    pygame.display.update()
    #刷新一下画面

# -*- coding: utf-8 -*-
import pygame
from sys import exit
pygame.init()
screen = pygame.display.set_mode((450, 800), 0, 32)
pygame.display.set_caption("Hello, World!")
background = pygame.image.load(‘back.jpg‘).convert()
plane = pygame.image.load(‘plane.png‘).convert_alpha()
bullet = pygame.image.load(‘bullet.png‘).convert_alpha()
#加载子弹图像
bullet_x = 0
bullet_y = -1
#初始化子弹位置
while True:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit()
            exit()
    screen.blit(background, (0,0))
    x, y = pygame.mouse.get_pos()
    if bullet_y < 0:
        #如果子弹位置超出了屏幕上端
        bullet_x = x - bullet.get_width() / 2
        bullet_y = y - bullet.get_height() / 2
        #把子弹的中心位置设为鼠标坐标
    else:
        bullet_y -= 5
        #子弹的位置往上移
    screen.blit(bullet, (bullet_x, bullet_y))
    #把子弹画到屏幕上
    x-= plane.get_width() / 2
    y-= plane.get_height() / 2
    screen.blit(plane, (x, y))
    pygame.display.update()