# -*- coding: utf-8 -*-
import tkinter
import random

# constants
WIDTH = 640
HEIGHT = 480
BG_COLOR = 'white'
ZERO = 0


class Ball():
    def __init__(self, x, y, r, color, dx = 0, dy = 0):
        self.x = x
        self.y = y
        self.r = r
        self.color = color
        self.dx = dx
        self.dy = dy

    def draw(self):
        canvas.create_oval(self.x - self.r, self.y - self.r,  self.x + self.r, self.y + self.r, fill = self.color, outline = self.color)
    def hide(self):
        canvas.create_oval(self.x - self.r, self.y - self.r,  self.x + self.r, self.y + self.r, fill = BG_COLOR, outline = BG_COLOR)
    def move(self):
        #отскакивание от стенок
        if (self.x + self.r + self.dx >= WIDTH) or (self.x - self.r + self.dx <= ZERO):
            self.dx = - self.dx

        if (self.y + self.r + self.dy >= HEIGHT) or (self.y - self.r + self.dy <= ZERO):
            self.dy = - self.dy
        #основное движение
        self.hide()
        self.x += self.dx
        self.y += self.dy
        self.draw()


# mouse_events
def mouse_click(event):
    global main_ball
    if event.num == 1:
        if 'main_ball' not in globals():
            main_ball = Ball(event.x, event.y, 30, "blue", 1, 1)
            if main_ball.x > WIDTH / 2:
                main_ball.dx = -main_ball.dx
            if main_ball.y > HEIGHT / 2:
                main_ball.dy = -main_ball.dy
            main_ball.draw()
        # повернуть налево
        else:
            if main_ball.dy * main_ball.dx > 0:
                main_ball.dy = -main_ball.dy
            else:
                main_ball.dx = -main_ball.dx
        main_ball.move()
    else:
        main_ball.hide()
#еще шары
def create_list_of_balls(number):
    lst = []
    while len(lst) < number:
        next_ball = Ball(random.choice(range(0,WIDTH)), random.choice(range(0,HEIGHT)), random.choice(range(20,25)), random.choice(['aqua', 'red', 'pink', 'yellow', 'gold', 'black', 'fuchsia', 'chartreuse', 'green']))
        lst.append(next_ball)
        next_ball.draw()
    return lst

def main():
    if 'main_ball' in globals():
        main_ball.move()
    root.after(10, main)


#Окно игры
root = tkinter.Tk()
root.title("Война пончиков") #имя окошка
canvas = tkinter.Canvas(root, width = WIDTH, height = HEIGHT, bg = BG_COLOR)
canvas.bind('<Button-1>', mouse_click)
canvas.bind('<Button-2>', mouse_click, "+")
canvas.bind('<Button-3>', mouse_click, "+")
canvas.pack()
balls = create_list_of_balls(7)
main()
root.mainloop()