Python-弹球游戏增强版

from tkinter import *
import time
import random

tk = Tk()
tk.title("Game")
tk.resizable(0,0)
tk.wm_attributes('-topmost',1)
canvas = Canvas(tk,width=500,height=400,bd=0,highlightthickness=0)
canvas.pack()
tk.update()
bg = PhotoImage(file="F:\\1、Python\\Python代码\\弹球游戏\\图片\\背景.gif")
for x in range(0,5):
    for y in range(0,4):
        canvas.create_image(x*100,y*100,image=bg,anchor='nw')

class Ball:
    def __init__(self,canvas,paddle,color):
        self.canvas = canvas
        self.paddle = paddle
        self.id = canvas.create_oval(10,10,25,25,fill=color)
        self.canvas.move(self.id,245,100)
        self.x = 0
        self.y = 0
        self.canvas_width = self.canvas.winfo_width()
        self.canvas_height = self.canvas.winfo_height()
        self.hit_bottom = False
        self.num = 0
        self.canvas.bind_all('<Button-1>',self.turn_sb)
    def turn_sb(self,evt):
        start = [-3,-2,-1,1,2,3]
        random.shuffle(start)
        self.x = start[0]
        self.y = 3
    def hit(self,pos):
        pos_paddle = self.canvas.coords(self.paddle.id)
        if pos[3] <= pos_paddle[3] and pos[3] >= pos_paddle[1]:
            if pos[2] >= pos_paddle[0] and pos[0] <= pos_paddle[2]:
                return True
        return False
    def draw(self):
        self.canvas.move(self.id,self.x,self.y)
        pos = self.canvas.coords(self.id)
        if pos[0] <= 0:
            self.x = 3
        if pos[2] >= self.canvas_width:
            self.x = -3
        if pos[1] <= 0:
            self.y = 3
        if pos[3] >= self.canvas_height:
            self.hit_bottom = True
        if self.hit(pos) == True:
            self.y = -3
            self.num += 1

class Paddle:
    def __init__(self,canvas,color):
        self.canvas = canvas
        self.id = canvas.create_rectangle(0,0,100,10,fill=color)
        self.canvas.move(self.id,250,330)
        self.x = 0
        self.canvas_width = self.canvas.winfo_width()
        self.canvas.bind_all('<KeyPress-Left>',self.turn_left)
        self.canvas.bind_all('<KeyPress-Right>',self.turn_right)
    def draw(self):
        self.canvas.move(self.id,self.x,0)
        pos = self.canvas.coords(self.id)
        if pos[0] <= 0:
            self.x = 0
        if pos[2] >= self.canvas_width:
            self.x = 0
    def turn_left(self,evt):
        self.x = -4
    def turn_right(self,evt):
        self.x = 4
        
paddle = Paddle(canvas,'blue')
ball = Ball(canvas,paddle,'red')

while 1:
    if ball.hit_bottom == False:
        ball.draw()
        paddle.draw()
    else:
        time.sleep(1)
        canvas.create_text(250,150,text="游戏失败，继续努力", \
                           font=("Courier",30),fill='yellow')
        string = "成功次数 %s "
        canvas.create_text(250,180,text= string % ball.num,font=("Courier",20),fill="yellow")
        break
    tk.update_idletasks()
    tk.update()
    time.sleep(0.01)