-- promenne --

do
  zetony = 0
  vyseSazky = 0
  a = 0
  b = 0
  c = 0
  vyhra = 0
  kolikDobit = 0

  term.clear()
end

-- vysvetleni principu hry --

do
  term.clear()
  x, y = term.getSize()
  term.setCursorPos(x/2-4, 2)
  print("AUTOMATY")
  textutils.slowPrint("---------------------------------------------------")
  print("Pokud vam padne 3x stejne cislo, vyhravate dvojnasobek vaseho vkladu")
  print("1 diamant = 1 zeton")
  print("Diamanty hazejte po vyzvani do vody vedle automatu")
  print("Pro pokracovani stisknete ENTER")
  io.read()
  term.clear()
end

-- hlavni program --

while true do
  term.clear()
  x, y = term.getSize()
  term.setCursorPos(x/2-4, 2)
  print("AUTOMATY")
  print("---------------------------------------------------")
  print("Zvolte moznost:")
  print("1. Dobit zetony")
  print("2. Hrat automaty")
  print("3. Vybrat vyhru")
  print("4. Odejit")
  print("Vas pocet zetonu je: "..zetony)
  volba = read()
  volba = tonumber(volba)

  if volba == 1 then

    term.clear()
	x, y = term.getSize()
    term.setCursorPos(x/2-4, 2)
    print("AUTOMATY")
    print("---------------------------------------------------")
	print("Zadej, kolik zetonu chces dobit:")
	kolikDobit = read()
	kolikDobit = tonumber(kolikDobit)

    p = kolikDobit

	while p > 0 do
	  os.pullEvent()
      if redstone.getInput("left") == true then
        zetony = zetony + 1
		p = p - 1
		print("Jeste zbyva "..p.." diamantu")
        sleep(1)
      end
    end
  elseif volba == 2 then

    term.clear()

	a = math.random(1,3)
	b = math.random(1,3)
	c = math.random(1,3)

	x, y = term.getSize()
    term.setCursorPos(x/2-4, 2)
    print("AUTOMATY")
    print("---------------------------------------------------")
    print("Vas pocet zetonu je: "..zetony)
	print("Zadejte o kolik zetonu chcete hrat")
	vyseSazky = read()
	vyseSazky = tonumber(vyseSazky)
	term.clear()

    if vyseSazky > zetony then
      x, y = term.getSize()
      term.setCursorPos(x/2-4, 2)
      print("AUTOMATY")
      print("---------------------------------------------------")
	  print("Nemate dostatek zetonu, dobijte si prosim")
	  sleep(1)
	else
	  if a == b then
        if a == c then
	      if b == c then
		   	x, y = term.getSize()
            term.setCursorPos(x/2-4, 2)
            print("AUTOMATY")
            print("---------------------------------------------------")
		    print("Vyhral jste "..vyseSazky * 2.." zetonu!!!")
			zetony = zetony + vyseSazky * 2
			sleep(2)
		  end
	    else
	      print("Prohral jste!")
		  x, y = term.getSize()
          term.setCursorPos(x/2-4, 2)
          print("AUTOMATY")
          print("---------------------------------------------------")
		  zetony = zetony - vyseSazky
		  sleep(2)
	    end
	  else
	    print("Prohral jste!")
		x, y = term.getSize()
        term.setCursorPos(x/2-4, 2)
        print("AUTOMATY")
        print("---------------------------------------------------")
		zetony = zetony - vyseSazky
		sleep(2)
	  end
	end

  elseif volba == 3 then

	term.clear()

	if zetony > 0 then
	  print("Je vam vyplacena vyhra")

	  i = zetony

	  while i > 0 do
	    sleep(1)
	    redstone.setOutput("back", true)
	    sleep(1)
	    redstone.setOutput("back", false)
	    i = i - 1
	  end
	  term.clear()
	  print("Vyhra byla vyplacena")
	  zetony = 0
	  sleep(3)
    else
	  term.clear()
	  x, y = term.getSize()
      term.setCursorPos(x/2-4, 2)
      print("AUTOMATY")
      print("---------------------------------------------------")
	  print("Nemate zadne zetony na vyplaceni")
	  sleep(3)
	end

  elseif volba == 4 then
    term.clear()
   	x, y = term.getSize()
    term.setCursorPos(x/2-4, 2)
    print("AUTOMATY")
    print("---------------------------------------------------")
    print("Navidenou a preji hezky zbytek dne")
    sleep(3)
    term.clear()
	break

  else
    x, y = term.getSize()
    term.setCursorPos(x/2-4, 2)
    print("AUTOMATY")
    print("---------------------------------------------------")
    print("Neplatna volba")
	sleep(3)
  end
end