fractalEyeBeams.py

'''
    See more of my content at https://co60.ca

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.

    Usage: import the module, run main
'''
from tkinter import *

WIDTH = 1366
HEIGHT= 768
SPACING = 10
LINE_WIDTH = 3


master = Tk()
w = Canvas(master, width=WIDTH, height=HEIGHT, bg="#000000")
w.pack()

stack = []

def main(depth):
    stack.append((WIDTH/2, HEIGHT/2, True, depth))
    while stack:
        nextitem = stack.pop(0)
        try:
            stack.index(nextitem)
            stack.remove(nextitem)
        except ValueError:
           draw_fract_lines(nextitem[0], nextitem[1], nextitem[2], nextitem[3])

def draw_fract_lines(startx, starty, verticle, depth):
    '''Stop fractalizing at depth = 0, draw two lines from
    startx, starty, in a verticle manor
    '''
    if (verticle):
        x1 = startx
        x2 = startx
        y1 = starty + SPACING
        y2 = starty - SPACING
    else:
        x1 = startx + SPACING
        x2 = startx - SPACING
        y1 = starty
        y2 = starty
    w.create_line(x1, y1, x2, y2, fill="#ffffff", width=LINE_WIDTH)
    if (depth > 0):
        stack.append((x1, y1, not verticle, depth - 1))
        stack.append((x2, y2, not verticle, depth - 1))
        

Now is iterative so does not fail after 52