python第一個遊戲__python

球拍接球，球拍可左右移動，球落地，遊戲over。

from Tkinter import *import randomimport timeclass Ball:    def __init__(self,canvas,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)        starts=[-3,-2,-1,1,2,3]        random.shuffle(starts)        self.x=starts[0]        self.y=-3        self.canvas_height=self.canvas.winfo_height()        self.canvas_width=self.canvas.winfo_width()        self.hit_bottom=False    def hit_paddle(self,pos):        paddle_pos=self.canvas.coords(self.paddle.id)        if pos[2]>=paddle_pos[0] and pos[0]<=paddle_pos[2]:            if pos[3]>=paddle_pos[1] and pos[3]<=paddle_pos[3]:                return True            return False    def draw(self):        self.canvas.move(self.id,self.x,self.y)        pos=self.canvas.coords(self.id)        if pos[1]<=0:            self.y=3        if pos[3]>=self.canvas_height:            self.hit_bottom=True        if self.hit_paddle(pos)==True:            self.y=-3        if pos[0]<=0:            self.x=3        if pos[2]>=self.canvas_width:            self.x=-3class 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,200,300)       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        elif pos[2]>=self.canvas_width:            self.x=0    def turn_left(self,evt):        self.x=-2    def turn_right(self,evt):        self.x=2tk=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()paddle=Paddle(canvas,'blue')ball=Ball(canvas,'red')while 1:    if ball.hit_bottom==False:        ball.draw()        paddle.draw()    tk.update_idletasks()    tk.update()    time.sleep(0.01)

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