# Tk_rgb_transition.py

# Tk_rgb_transition.py

from tkinter import *
import time
from PIL import Image, ImageTk
from random import shuffle as rs, randint as ri

tx =  time.time
ww = 600
hh = 600

root = Tk()
root.title("Tk_rgb_transition")
root.geometry("%dx%d+-6+-2"%(ww,hh))
canvas = Canvas(width=ww, height=hh)
canvas.pack()

def motion(event):
    mouse_pos.append((event.x, event.y))
root.bind('<B1-Motion>', motion)

rgb = []
screen = []
xy = {}
w = 255.0/ww
h = 255.0/hh

ttt = [i for i in range(0,255)]
ttt = ttt[:-1]+ttt[::-1]
ttt.pop()
L = len(ttt)

for j in range(0,hh):
    for i in range(0,ww):
        xy[i,j] = len(rgb)
        rgb += [(int(j*h),int(i*w),min(i,j))]
        screen += [(i,j)]

rgb_float = rgb[:]

mouse_pos = []
image = Image.new("RGB", (ww,hh))

def draw():
    image.putdata(rgb)
    photo = ImageTk.PhotoImage(image)
    canvas.create_image(0,0,image=photo,anchor=NW)
    canvas.update()

incr = [round(i*0.01,2) for i in range(1,101)]
incr = incr[:-1]+incr[::-1]
incr.pop()
incr2 = incr[:]

transition = range(3,70000,111)
L2 = len(transition)

while 1:
    # rs(screen)
    for i,j in screen:
        t = xy[i,j]
        pa = []
        pb = []
        for k,v in enumerate(rgb_float[t]):
            v2 = transition[(t**(k*3+7))%L2]
            p = (v+v2)%L
            pa += [p]
            pb += [ttt[int(p)%L]]
        rgb_float[t] = pa
        rgb[t] = tuple(pb)
    draw()