🌳✨ Python Turtle: The Neon Fractal Tree

 

Code:

import turtle import random import time screen = turtle.Screen() screen.setup(700, 700) screen.bgcolor("#02030a") t = turtle.Turtle() t.hideturtle() t.speed(0) t.width(2) colors = [ "#00ff9d", "#00e5ff", "#2979ff", "#9b30ff", "#ff2d75" ] def tree(length, angle, depth): if depth == 0: t.dot(7, random.choice(colors)) return t.forward(length) screen.update() time.sleep(0.015) pos = t.position() heading = t.heading() # Left branch t.left(angle) tree(length * 0.72, angle, depth - 1) t.penup() t.goto(pos) t.setheading(heading) t.pendown() # Right branch t.right(angle * 2) tree(length * 0.72, angle, depth - 1) t.penup() t.goto(pos) t.setheading(heading) t.pendown() t.penup() t.goto(0, -300) t.setheading(90) t.pendown() t.color("#00e5ff") tree(110, 28, 8) turtle.done()

Explanation:

1. Import Libraries

import turtle

import random

import time

turtle → Drawing.

random → Random colors.

time → Animation delay.

2. Create the Screen

screen = turtle.Screen()

screen.setup(700, 700)

screen.bgcolor("#02030a")

Creates a 700 × 700 dark canvas.

3. Configure the Turtle

t = turtle.Turtle()

t.hideturtle()

t.speed(0)

t.width(2)

Creates the turtle.

Hides the cursor.

Uses maximum speed.

Sets line thickness.

4. Define Neon Colors

colors = [...]

Stores colors for the glowing tree tips.

5. Create the Recursive Tree Function

def tree(length, angle, depth):

Defines the fractal tree.

length → Branch size.

angle → Branch angle.

depth → Recursion level.

6. Set the Base Case

if depth == 0:

    t.dot(7, random.choice(colors))

    return

Stops recursion when depth reaches 0.

Adds a random-colored glowing dot.

7. Draw the Main Branch

t.forward(length)

Draws the current branch.

8. Save Turtle Position

pos = t.position()

heading = t.heading()

Saves the current position and direction.

Allows the turtle to return after each branch.

9. Create the Left Branch

t.left(angle)

tree(length * 0.72, angle, depth - 1)

Turns left.

Recursively creates a smaller branch.

10. Return to the Branch Point

t.penup()

t.goto(pos)

t.setheading(heading)

t.pendown()

Returns to the saved position.

Restores the original direction.

11. Create the Right Branch

t.right(angle * 2)

tree(length * 0.72, angle, depth - 1)

Turns right.

Creates another smaller branch recursively.

12. Set the Starting Position

t.goto(0, -300)

t.setheading(90)

Places the turtle at the bottom center.

Points it upward.

13. Draw the Tree

tree(110, 28, 8)

Starts the recursive tree.

8 gives multiple branching levels.

14. Finish

turtle.done()

Keeps the Turtle window open.