import tkinter as tk
import random as rd

class MC:
    def __init__(self):
        self.top = tk.Tk()
        self.top.geometry('700x500')
        self.top.title('keep the ball')
        self.ball = Ball(200, 200)
        self.top.after(1, self.animate)
        self.make_widgets()
        self.top.mainloop()

    def make_widgets(self):
        self.label = tk.Label(text='Keep the ball inside',
                              font=('Avant Garde', 30))
        self.label.pack(side='top')
        self.canvas = tk.Canvas(self.top, height=400, width=700,
                                bg = '#104060')
        self.canvas.pack(side='bottom')
        self.canvas.bind("<Button-1>", lambda e: self.handler(e))
        self.display_ball()
        self.button=tk.Button(self.top, text='reset', command=self.reset)
        self.button.pack(side='bottom')

    def reset(self):
        self.ball = Ball(350, 250)
        print('reset')

    def display_ball(self):
        x,y = int(round(self.ball.x)), int(round(self.ball.y))
        self.canvas.delete('all')
        self.canvas.create_oval(x-5, y-5, x+5, y+5, fill='white')

    def animate(self):
        self.ball.move()
        self.display_ball()
        self.top.after(100, self.animate)

    def handler(self,e):
        self.ball.adjust(e.x, e.y)
        
        

class Ball:
    max_speed = 10
    def __init__(self, x, y):
        self.x, self.y = x, y
        self.dx, self.dy = rd.random()*10-5, rd.random()*10-5
    def move(self):
        self.x += self.dx
        self.y += self.dy
    def __str__(self):
        return f"x={self.x}, y={self.y}, dx={self.dx}, dy={self.dy}"
    def adjust(self, a,b):
        deltax = a - self.x
        deltay = b - self.y
        distance = ((a-self.x)**2+(b-self.y)**2)**1/2
        self.dx = 0.5 *self.dx + 0.5 * deltax
        self.dy = 0.5 *self.dy + 0.5 * deltay
        length = (self.dx**2+self.dy**2)**1/2
        #self.dx *= Ball.max_speed / length
        #self.dy *= Ball.max_speed / length
        print(self.dx, self.dy)

m=MC()