Darkchili Slayer Darkchili Slayer - 2 months ago 15
Python Question

AttributeError: type object has no attribute "id" PYTHON

So I was trying to make a basic python pong game when this error came up:
It seems to say that AttributeError: type object has no attribute "id" which I have no idea what it means.

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


This is the code I used:

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

You need to pass instances of Paddle and Paddle2 to Ball constructor.

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