How to down the canvas without naming it

Question

I want to make all of the rectangles get down, but its impossble to name them, someone can help me?
https://code.sololearn.com/ckrn4Q5wGFNu/?ref=app

Answer 1

PyDan

Answer 2

PyDan i know this, i want like, after 5 secs all the canvas that was made change their position

Answer 3

PyDan
https://code.sololearn.com/c30v34663Uy0/?ref=app

Answer 4

PyDan Yeah, but what about changing their position instead of deleting them, is it possible?

Answer 5

PyDan
https://code.sololearn.com/cQh6Z60cHyAz/?ref=app

Take a look at line 56, why it doesn't work?

Answer 6

PyDan Their position didn't change

Answer 7

Can you specify what is the real problem? What you want obtain? Its hard understand your problem without futher info

Answer 8

It maybe like this

https://code.sololearn.com/cFGlcn6eWn5L/?ref=app

Answer 9

I Am Not Arthur
Yes, it is

Example,

Assuming "canvas" move right, we have
x_pos +1

if x_pos >= parent.width:
x_pos *= -1

=> This is help "canvas" moving reverse (move left).

Answer 10

Its still work

Answer 11

another Animation

https://code.sololearn.com/c6275BZqnY6T/?ref=app

Answer 12

But do you want move multiple rects (not widget) without store all refs? If yes, you can store the rects in an array and modify when you have to update they, the pos attribute.
See here for an example

https://code.sololearn.com/cNCdOt9Z6A07/?ref=app

Answer 13

Test it with pydroid 3

https://code.sololearn.com/cQsSl2M6IDP0/?ref=app

Answer 14

To Change properties of canvas

with widget.canvas:
Rectangle(
size=...,
pos=(x, y_pos)
# SEE HERE: y_pos
)

When you call Clock, y_pos will change its value
Move up: y_pos += 5
Move down: y_pos -= 5

Answer 15

It cannot work.

class Janela(FloatLayout):
Y=0
def __init__(self, **kwargs):
super().__init__(**kwargs)
with self.canvas:
Rectangle(size=(50,50), pos=(100, self.Y))
Clock.schedule_interval(self.update, 1/60)

def update(self, *args):
self.Y += 0.01