#!/usr/bin/env python

import thread
from threading import Timer
import kbhit

from kbhit import *

num = 15
flag = 0 # Used to detect key hit character exactly once

def kbListener(kb):
	''' Stores the input from the keyboard into global variable c--> used in thread
	'''
	global num
	global c
	global flag
	while num != 0:
		if (kb.kbhit()):
			c = kb.getch().lower() #Get character and change it to lower case
			flag = 1
			#Test patterns
			#if ord(c) == 97: # a
			#	print ("Pressed \'a\'\n")
			#if ord(c) == 10: # Newline/Linefeed
			#	print ("Pressed Enter\n")
			#if ord(c) == 27: # ESC
			#	print ("Success\n")
			#	num = 0
			#print(c)			
	
def count():
	''' Counts down from 15 to 0.  To be used in a separate thread
	'''
	global num
	num = num-1
	if num > 0:
		print num
		global t
		t = Timer(1.0, count)
		t.start()
	else:
		print "Time Out!"
	return 0  

state = 0
exstate = 0
countm = 0
t = Timer(1.0, count)	

#State machine code
def statemachine():
	global num
	global state
	global exstate
	global countm
	global c

	if(ord(c) == 27): #ESC key
		num = 0
	''' Add your State Machine code here
	'''
	
	''' End of state machine code
	'''
	return 0

# Code begins here   
if __name__ == "__main__":	
	kb = KBHit()
	
	listen = thread.start_new_thread(kbListener, (kb, ))

	c = ' '
	t.start()
	while(num != 0):
		if flag == 1:
			statemachine()
			flag = 0 #Reset flag so as to avoid checking the previous character
	
	t.cancel()