# Psychedelic_Gradient_Circle.py

# Psychedelic_Gradient_Circle.py

import tkinter as tk
from PIL import Image, ImageTk
import math
import time

w, h = 300, 300
cx, cy = w // 2, h // 2

root = tk.Tk()
canvas = tk.Canvas(root, width=w, height=h)
canvas.pack()

img = Image.new("RGB", (w, h))
pixels = img.load()

while 1:
    t = time.time()

    for y in range(h):
        for x in range(w):
            dx = x - cx
            dy = y - cy
            angle = math.atan2(dy, dx)
            dist = math.hypot(dx, dy)

            r = int((math.sin(dist / 10 + angle + t) * 127 + 128))
            g = int((math.cos(dist / 10 - angle + t) * 127 + 128))
            b = int((math.sin(dist / 15 + t) * 127 + 128))

            pixels[x, y] = (r & 255, g & 255, b & 255)

    tk_img = ImageTk.PhotoImage(img)
    canvas.create_image(0, 0, anchor=tk.NW, image=tk_img)
    root.update_idletasks()
    root.update()