Page 212 - Programming With Python 3

An Introduction to STEM Programming with Python — 2019-09-03a Page 199
Chapter 19 — Better Graphics

Sample Program — Animate a Stick Human

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This program creates a couple of classes to draw multiple shape objects and then animates them. The
first is called "list_of_shapes" that allows us to make a list of shapes, draw them all at once, and move
them all with a single method call. The second method inherits list_of_shapes and then creates several
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shapes to draw a stick figure.

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1| import graphics
2| import time
3|
4| class list_of_shapes:
5| def __init__(self):
6| self.shapes = [] eBook
7| def move(self, dx, dy):
8| for shape in self.shapes:
9| shape.move(dx, dy)
10| def draw(self, window):
11| for shape in self.shapes:
12| shape.draw(window) Edition
13|
14| class stickman(list_of_shapes):

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