Python Animation - Circle Baloon

 

import tkinter as tk

import random

class Bubble():

    def __init__(self, canvas, x, y, size, color='red'):

        self.canvas = canvas

        self.x = x

        self.y = y

        self.start_x = x

        self.start_y = y

        self.size = size

        self.color = color

        self.circle = canvas.create_oval([x, y, x+size, y+size], outline=color, fill=color)

    def move(self):

        x_vel = random.randint(-5, 5)

        y_vel = -5

        self.canvas.move(self.circle, x_vel, y_vel)

        coordinates = self.canvas.coords(self.circle)

        self.x = coordinates[0]

        self.y = coordinates[1]

        # if outside screen move to start position

        if self.y < -self.size:

            self.x = self.start_x

            self.y = self.start_y

            self.canvas.coords(self.circle, self.x, self.y, self.x + self.size, self.y + self.size)

def move():

    for item in bubbles:

        item.move()

    window.after(33, move)

# --- main ---

start_x = 230

start_y = 270

window = tk.Tk()

window.geometry("1000x1000")

canvas = tk.Canvas(window, height=1000, width=1000)

canvas.grid(row=0, column=0, sticky='w')

bubbles = []

for i in range(5):

    offset = random.randint(10, 20)

    b = Bubble(canvas, start_x+10, start_y-offset, 20, 'red')

    bubbles.append(b)

for i in range(5):

    offset = random.randint(0, 10)

    b = Bubble(canvas, start_x+10, start_y-offset, 20, 'green')

    bubbles.append(b)

coord = [start_x, start_y, start_x+40, start_y+40]

rect = canvas.create_rectangle(coord, outline="Blue", fill="Blue")

move()

window.mainloop ()