Heart.py

# " .,-~:;=!*♥♥♥♥"

from tkinter import Tk, Frame, Canvas
from math import cos, sin
from random import randint
import numpy as np

class Heart(Frame):
    def __init__(self, master):
        super().__init__(master)
        self.canvas = Canvas(master, bg = 'black')
        self.canvas.place(relx = 0, rely = 0, relwidth = 1, relheight = 1)
        self.objects = []
        self.n = 0
        self.x = 0
        self.y = 0
        self.create_obj()
        self.update()

    def create_obj(self):
        for i in range(900):
            obj = self.canvas.create_text(0, 0, font = ('Arial', 18, 'bold'))
            self.objects.append(obj)
                                          
    def draw(self, obj, char, x, y, color):
        self.canvas.itemconfig(obj, fill = color, text = char)
        self.canvas.coords(obj, x + 200, y + 30)

    def update(self):
        zbuffer = [0]*900
        maxz = 0
        num = 0
        chars = " .,-~:;=!*♥♥♥♥"
        c = cos(self.n)
        s = sin(self.n)
        for y in np.arange(-0.5, 0.51, 0.01):
            r = 0.4 + 0.04*(0.4 + 0.4*sin(self.n*6 + y*2))**8
            for x in np.arange(-0.5, 0.51, 0.01):
                z = -x**2 - (1.2*y - abs(x)*(2/3))**2 + r**2
                if z > 0:
                    z = (z**(1/2))/(2 - y)
                    for z2 in np.arange(-z, z, z/6):
                        ax = x*c - z2*s
                        az = x*s + z2*c
                        p = 1 + az/2

                        px = round((ax*p + 0.5)*30)
                        py = round((-y*p + 0.5)*30)

                        pos = px + 30*py
                        if zbuffer[pos] <= az:
                            zbuffer[pos] = az
                            if maxz <= az:
                                maxz = az
                            
        for i in range(30):
            self.y += 20
            for j in range(30):
                self.x += 20
                idx = int(zbuffer[num]/maxz*13)
                color = '#{:02x}{:02x}{:02x}'.format(randint(50, 255), randint(50, 255), randint(50, 255))
                self.draw(self.objects[num], chars[idx], self.x, self.y, color)
                num += 1
            self.x = 0
        self.y = 0
        num = 0
        self.n += 0.3
        self.master.after(80, self.update)

if __name__ == '__main__':
    root = Tk()
    root.title('Heart Animation')
    root.geometry('1000x600')
    app = Heart(root)
    app.mainloop()