#!/usr/bin/env python3
from PIL import Image
from math import sin, cos, pi


def main():
    bg = Image.open('./stars.png')
    cookie = Image.open('./cookie.png').resize((100, 100))
    cookie_mask = cookie.split()[0].point(lambda i: i != 0 and 255)
    muffin = Image.open('./muffin.png').resize((100, 100))
    muffin_mask = muffin.split()[0].point(lambda i: i != 0 and 255)
    doughnut = Image.open('./doughnut.png').resize((100, 100))
    doughnut_mask = doughnut.split()[0].point(lambda i: i != 0 and 255)

    snacks = [cookie, muffin, doughnut]
    masks = [cookie_mask, muffin_mask, doughnut_mask]
    n = 150

    def combine(t):
        A = 0.1
        w = 6*2*pi/n

        bg_copy = bg.copy()

        # left_c.paste(left, box=(offset, 0))
        # right_c.paste(right, box=(-offset, 0))

        N = 10
        radius = 400
        center = 450, 450
        for i in range(N+1):
            strain_x = 1 + A*sin(w*t)
            strain_y = 1 - A*sin(w*t)
            theta = i*2*pi/(N+1)
            x = int(center[0] + strain_x*radius*cos(theta))
            y = int(center[1] + strain_y*radius*sin(theta))
            bg_copy.paste(snacks[i % 3], mask=masks[i % 3], box=(x, y))

        # bg.show()
        return bg_copy

    # combine(0)
    frames = [combine(i) for i in range(n)]

    frames[0].save('snacks.gif', save_all=True, append_images=frames[1:], duration=int(1000/30), loop=0)


if __name__ == '__main__':
    main()