python_graphics_2.py

# Example for interactivedatascience.courses
# Draws from the center of a drawing to the user's cursor.
# Author: A Samuel Pottinger
# License: BSD-3-Clause

import sketchingpy
import time

sketch = sketchingpy.Sketch2D(500, 400)

center_x = 500 / 2
center_y = 400 / 2
end_x = 100
end_y = 50
sketch.draw_line(center_x, center_y, end_x, end_y)

def draw_moving_line(self):
    mouse = sketch.get_mouse()
    sketch.draw_line(250, 200, mouse.get_pointer_x(), mouse.get_pointer_y())

sketch.on_step(draw_moving_line)

sketch.show()