# tk_spring_loaded.py

import tkinter as tk
import math
import time

# Setup
WIDTH, HEIGHT = 640, 480
CENTER_X, CENTER_Y = WIDTH // 2, HEIGHT // 2
canvas_scale = 100
num_points = 200
fov = 3.0

root = tk.Tk()
root.title("tk_spring_loaded.py")
canvas = tk.Canvas(root, width=WIDTH, height=HEIGHT, bg="black")
canvas.pack()

# Generate 3D points in a spiral
points = []
for i in range(num_points):
    a = i * 0.3
    x = math.cos(a) * (1 + i * 0.01)
    y = math.sin(a) * (1 + i * 0.01)
    z = i * 0.05
    points.append((x, y, z))

def project(x, y, z, t):
    # Rotate around Y axis
    angle = t * 0.5
    cos_a = math.cos(angle)
    sin_a = math.sin(angle)
    xz = x * cos_a - z * sin_a
    zz = x * sin_a + z * cos_a

    # Rotate around X axis
    angle2 = t * 0.3
    cos_b = math.cos(angle2)
    sin_b = math.sin(angle2)
    yz = y * cos_b - zz * sin_b
    zz = y * sin_b + zz * cos_b

    # Perspective projection
    scale = canvas_scale / (zz + fov)
    px = CENTER_X + xz * scale
    py = CENTER_Y + yz * scale
    return px, py, zz

def animate():
    canvas.delete("all")
    t = time.time()

    for i, (x, y, z) in enumerate(points):
        px, py, depth = project(x, y, z, t)

        # Color based on depth and time
        r = int(128 + 127 * math.sin(t + depth))
        g = int(128 + 127 * math.sin(t + depth + 2))
        b = int(128 + 127 * math.sin(t + depth + 4))
        color = f'#{r:02x}{g:02x}{b:02x}'

        size = max(1, int(6 - depth))
        canvas.create_oval(px - size, py - size, px + size, py + size, fill=color, outline="")

    root.after(1, animate)

animate()
root.mainloop()