magic-sparkle-11.py

# magic_sparkle.py

import turtle
import time

from dot import Dot

BACKGROUND_COLOUR = "#1a6b72"


lead_dot_speed = 1
lead_dot_rotation_angle = 5

window = turtle.Screen()
window.tracer(0)
window.bgcolor(BACKGROUND_COLOUR)

lead_dot = turtle.Turtle()
lead_dot.shape("circle")
lead_dot.color("white")
lead_dot.penup()


def turn_left():
    lead_dot.left(lead_dot_rotation_angle)


def turn_right():
    lead_dot.right(lead_dot_rotation_angle)


window.onkeypress(turn_left, "Left")
window.onkeypress(turn_right, "Right")
window.listen()

dots = []

interval_start = 0
while True:
    lead_dot.forward(lead_dot_speed)
    # Spawn a new dot every half a second (for now)
    if time.time() - interval_start > 0.5:
        interval_start = time.time()
        dots.append(
            Dot(
                lead_dot.xcor(),
                lead_dot.ycor(),
            )
        )

    # Move all the dots
    for dot in dots:
        dot.fall()
        if dot.ycor() < -window.window_height() / 2:
            dots.remove(dot)
            turtle.turtles().remove(dot)

    print(f"\nNumber of dots in the 'dots' list: {len(dots)}")
    print(f"Number of dots in the 'turtle.turtles()' list: {len(turtle.turtles())}")

    window.update()