#!/usr/bin/env python3
from tkinter import *
import random
import time

# Ball class
class Ball:
	def __init__(self, canvas, paddle, score, color):
		self.canvas = canvas
		self.paddle = paddle
		self.score = score
		self.id = canvas.create_oval(10, 10, 25, 25, fill=color)
		self.canvas.move(self.id, 245, 100)
		starts = [-3, -2, -1, 1, 2, 3]
		random.shuffle(starts)
		self.x = starts[0]
		self.y = -3
		self.canvas_height = self.canvas.winfo_height()
		self.canvas_width = self.canvas.winfo_width()
		self.hit_bottom = False

	def hit_paddle(self, pos):
		paddle_pos = self.canvas.coords(self.paddle.id) # paddle coords
		if pos[2] >= paddle_pos[0] and pos[0] <= paddle_pos[2]:
			if pos[3] >= paddle_pos[1] and pos[3] <= paddle_pos[3]:
				self.x += self.paddle.x
				self.score.hit()
				return True
		return False
		
	def draw(self):
		self.canvas.move(self.id, self.x, self.y)
		pos = self.canvas.coords(self.id)
		print('Ball: %s' %self.canvas.coords(self.id))
		#     [x1,     y1,     x2,     y2   ]
		# ex: [255.0,  203.0,  270.0,  218.0]
		#     [pos[0], pos[1], pos[2], pos[3]]
		if pos[1] <= 0:
			self.y = 3
		if pos[3] >= self.canvas_height:
			self.hit_bottom = True
		if self.hit_paddle(pos) == True:
			self.y = -3
		if pos[0] <= 0:
			self.x = 3
		if pos[2] >= self.canvas_width:
			self.x = -3

class Paddle:
	def __init__(self, canvas, color):
		self.canvas = canvas
		self.id = canvas.create_rectangle(0, 0, 100, 10, fill=color)
		self.canvas.move(self.id, 200, 300)
		self.x = 0
		self.canvas_width = self.canvas.winfo_width()
		self.started = False
		self.canvas.bind_all('<KeyPress-Left>', self.turn_left)
		self.canvas.bind_all('<KeyPress-Right>', self.turn_right)
		self.canvas.bind_all('<Button-1>', self.start_game)
		
	def draw(self):
		self.canvas.move(self.id, self.x, 0) # no vertical moves allowed
		pos = self.canvas.coords(self.id)
		print('Paddle: %s' % self.canvas.coords(self.id))
		if pos[0] <= 0:
			self.x = 0
		elif pos[2] >= self.canvas_width:
			self.x = 0
	
	def turn_left(self, evt):
		self.x = -2
		
	def turn_right(self, evt):
		self.x = 2
		
	def start_game(self, evt):
		self.started = True
	
class Score:
	def __init__(self, canvas, color):
		self.score = 0
		self.canvas = canvas
		self.id = canvas.create_text(450, 10, text=self.score, fill=color)
	
	def hit(self):
		self.score += 10
		self.canvas.itemconfig(self.id, text=self.score)


tk = Tk()
tk.title("Game")
tk.resizable(0, 0) # windows is not resizeable
tk.wm_attributes("-topmost", 1) # window always on top
w=500
h=400
canvas = Canvas(tk, width=w, height=h, bd=0, highlightthickness = 0)
canvas.pack()
tk.update()

score = Score(canvas, 'red')
paddle = Paddle(canvas, 'blue')
ball = Ball(canvas, paddle, score, 'yellow')
#game_start_text = canvas.create_text(250, 200, text='GAME START', state='hidden')
game_over_text = canvas.create_text(250, 200, text='GAME OVER', state='hidden')
#game_score_text = canvas.create_text(0,400, text=ball.score, state='hidden')

# main loop: tells tk to redraw screen
while 1:
##	if paddle.started == True:
##		time.sleep(1)
##		canvas.itemconfig(game_start_text, state='normal') 

	if ball.hit_bottom == False and paddle.started == True:
		ball.draw()
		paddle.draw()
	if ball.hit_bottom == True:
		time.sleep(1)
		canvas.itemconfig(game_over_text, state='normal')
	tk.update_idletasks()
	tk.update()
	time.sleep(0.01) # two hundredth of a second