passAttempt = ""
pass = "1111"
function clear()
  term.clear()
  term.setCursorPos(1,1)
end

function getClicked()
  if y == 7 then
    if x == 8 then
      clickedNum = 1
    elseif x == 10 then
      clickedNum = 2
    elseif x == 12 then
      clickedNum = 3
    end
  elseif y == 9 then
    if x == 8 then
      clickedNum = 4
    elseif x == 10 then
      clickedNum = 5
    elseif x == 12 then
      clickedNum = 6
    end
  elseif y == 11 then
    if x == 8 then
      clickedNum = 7
    elseif x == 10 then
      clickedNum = 8
    elseif x == 12 then
      clickedNum = 9
    end
  elseif y == 13 then
    if x == 10 then
      clickedNum = 0
    end
  end
end

function PINsetup()

clear()
x = 3

print("SVETprog PIN program V0.1 - LUA, CC")
term.setCursorPos(12,x)
print("Please enter your PIN.")
term.setCursorPos(12,x+2)
print("----------------------")

x=8
y=7

term.setCursorPos(x,y)
term.setBackgroundColor(colors.white)
term.setTextColor(colors.black)
print(1)
term.setCursorPos(x+2,y)
print(2)
term.setCursorPos(x+4,y)
print(3)
term.setCursorPos(x, y+2)
print(4)
term.setCursorPos(x+2,y+2)
print(5)
term.setCursorPos(x+4,y+2)
print(6)
term.setCursorPos(x, y+4)
print(7)
term.setCursorPos(x+2, y+4)
print(8)
term.setCursorPos(x+4,y+4)
print(9)
term.setCursorPos(x+2, y+6)
print(0)

term.setTextColor(colors.white)
term.setBackgroundColor(colors.black)
term.setCursorPos(30,9)
print(">  ")
term.setCursorPos(34,9)
end

clickCounter = 0
PINsetup()

while true do
  event, x, y = os.pullEvent()
  if event == "click" then
    getClicked()
    if clickedNum ~= nil then
      write("*")
      passAttempt = passAttempt .. tostring(clickedNum)
      clickedNum = nil
      clickCounter = clickCounter + 1
    else
      term.setCursorPos(34,10)
      print("Invalid Click.")
      sleep(1)
      PINsetup()
      term.setCursorPos(34,9)
      asNum = string.len(passAttempt)
      for i = 1,asNum do
        write("*")
      end
    end
  if clickCounter >= 4 then
    PINsetup()
    print("Please Wait")
    break
  end
  end
end

sleep(5)
clear()

if passAttempt == pass then
  print("Password Accepted!")
else
  print("Password denied!")
end

term.setBackgroundColor(colors.black)