# Tk_1D_Walk.py

# Tk_1D_Walk.py

from PIL import Image, ImageTk, ImageDraw
from tkinter import *
import PIL
import math
import random

ww = 1400
hh = 600

yy = hh/2
root=Tk()
root.title("Tk_1D_Walk")
root.geometry("%dx%d+0+0"%(ww,hh))
canvas = Canvas(root,width=ww,height=hh,bg='black')
canvas.grid(row=0,column=0,sticky=N+S+E+W)
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def oRGB(rgb):
    r,g,b = rgb
    return "#%02x%02x%02x" % (r,g,b)

def plot():
    color = oRGB(rgb)
    x = xx+2
    canvas.create_line((x, 0, x, yy), fill=color)
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while 1:
    canvas.delete('all')
    for xx in range(0,ww):
        rgb = 255,255,0 # yellow
        yy = max(20,min(hh-20,yy+random.choice([-2,-1,0,1,2])))
        plot()
    canvas.update()