AttributeError：typeオブジェクトにid属性がありませんPYTHON

Question

このエラーが発生したときに基本的なpython pongゲームを作成しようとしていました： AttributeError：typeオブジェクトには属性「id」がありません。それがどういう意味か分かりません。

C:\Users\****\AppData\Local\Programs\Python\Python35-32\python.exe C:/Users/****/untitled/src/testing.py 
Traceback (most recent call last): 
    File "C:/Users/****/untitled/src/testing.py", line 113, in <module> 
    ball.draw() 
    File "C:/Users/****/untitled/src/testing.py", line 36, in draw 
    if self.hit_paddle2(pos) == True: 
    File "C:/Users/****/untitled/src/testing.py", line 53, in hit_paddle2 
    paddle2_pos = self.canvas.coords(self.paddle2.id) 
AttributeError: type object 'Paddle2' has no attribute 'id' 

Process finished with exit code 1 

これは私が使用するコードです：

from tkinter import * 
import random 
import time 

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() 


class Ball: 
    def __init__(self, canvas, paddle, paddle2, color): 
     self.canvas = canvas 
     self.paddle = paddle 
     self.paddle2 = paddle2 
     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 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 self.hit_paddle(pos) == True: 
      self.y = -3 
     if self.hit_paddle2(pos) == True: 
      self.y = 3 
     if pos[3] >= self.canvas_height: 
      self.hit_bottom = True 
     if pos[0] <= 0: 
      self.x = 3 
     if pos[2] >= self.canvas_width: 
      self.x = -3 

    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 hit_paddle2(self, pos): 
     paddle2_pos = self.canvas.coords(self.paddle2.id) 
     if pos[2] >= paddle2_pos[0] and pos[0] <= paddle2_pos[2]: 
      if pos[3] >= paddle2_pos[1] and pos[3] <= paddle2_pos[3]: 
       return True 
     return False 


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, 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 turn_left(self, evt): 
     self.x = -2 

    def turn_right(self, evt): 
     self.x = 2 

    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 

class Paddle2: 
    def __init__(self, canvas, color): 
     self.canvas = canvas 
     self.id = canvas.create_rectangle(0, 10, 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-W>', self.turn_left) 
     self.canvas.bind_all('<KeyPress-A>', self.turn_right) 

    def turn_left(self, evt): 
     self.x = -2 

    def turn_right(self, evt): 
     self.x = 2 

    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 

paddle = Paddle(canvas, 'blue') 
ball = Ball(canvas, paddle, Paddle2, 'red') 
paddle2 = Paddle2(canvas, 'blue') 
while 1: 
    if ball.hit_bottom == False: 
     ball.draw() 
     paddle.draw() 
     paddle2.draw() 
    tk.update_idletasks() 
    tk.update() 
    time.sleep(0.01) 

Answer 1

あなたはBallコンストラクタにPaddleとPaddle2のインスタンスを渡す必要があります。

paddle = Paddle(canvas, 'blue') 
paddle2 = Paddle2(canvas, 'blue') 
ball = Ball(canvas, paddle, paddle2, 'red') 

Answer 2

paddle = Paddle(canvas, 'blue') 
ball = Ball(canvas, paddle, Paddle2, 'red') 
paddle2 = Paddle2(canvas, 'blue') 

あなたはpaddle2インスタンスに渡す必要がありますか？このような？

paddle = Paddle(canvas, 'blue') 
paddle2 = Paddle2(canvas, 'blue') 
ball = Ball(canvas, paddle, paddle2, 'red')