Problem comparing 2 variables

--Written by EpicnessTwo
local rounds = 0 --Dont Change!
--Config Items
local lives = 10 --Number of lives at the start
local deathPoints = 1 --Lives lost upon losing
local healPoints = 1 --Lives gained upon winning
local lowestValue = 1 --Lowest random number
local highestValue = 5 --Highest random number

function resetStats()
local lives = 10
local deathPoints = 1
local healPoints = 1
local lowestValue = 1
local highestValue = 5
end
resetStats()
--Main Code
function writeStats()
term.setTextColor(colors.green)
term.setCursorPos(40, 1)
term.write("Your Stats")
term.setCursorPos(40, 2)
term.write("Lives: "..lives)
term.setCursorPos(40, 3)
term.write("Debug: "..gameNumber)
end
function chooseNumber()
gameNumber = math.random(lowestValue, highestValue)
end
function editStats(changeLives)
lives = lives + changeLives
end
function gameCorrect()
term.clear()
term.setCursorPos(10, 10)
term.write("Correct!")
editStats(1)
os.sleep(.3)
startGame()
end
function gameIncorrect()
term.clear()
term.setCursorPos(10, 10)
term.write("BANG!")
editStats(-1)
os.sleep(.3)
startGame()
end
function gameOver(Score)
term.clear()
term.setCursorPos(10, 10)
term.write("Your Dead!")
term.setCursorPos(10, 11)
term.write("Your Final Score: "..Score)
os.pullEvents()
os.reboot()
end
--Main Game Code
function startGame()
if lives==0 then
gameOver(rounds)
end
rounds = rounds + 1
while true do
term.clear()
chooseNumber()
writeStats()
term.setCursorPos(2, 3)
term.setTextColor(colors.blue)
term.write("Choose a number between "..lowestValue.." and "..highestValue..": ")
userInput = read()
if not(userInput==gameNumber) == true then
gameIncorrect()
else
gameCorrect()
end

end
end
---Menu
term.clear()
term.setCursorPos(1, 2)
--print("  _ ________,	   ,________ _")
--print("  >'/==/----'	   '----\==\'<")
--print(" /__/--'				 '--\__\")
--print(" ")
print("			  _____________________")
print("			   |				 |")
print("			   | Number Roulette |")
print("			   |		By	   |")
print("			   |   EpicnessTwo   |")
print("			   |_________________|")

local menu_options = { --This is our menu table. It contains basic data about the menu
  [1] = {text="Start Game", color=colors.blue},
  [2] = {text="Options", color=colors.orange},
  [3] = {text="How To Play", color=colors.cyan}
}
local termX, termY = term.getSize() --The x/y size of the terminal
local function menuDraw(selected) --Our main draw function
  local yPos = termY/2 - #menu_options/2 + 1 --The initial y position
  for index, data in pairs(menu_options) do
	menu_options[index].bounds = { --Create a new table in each option with the boundary data
	  x1 = termX/2 - (#data.text+4)/2;
	  x2 = termX/2 + (#data.text+4)/2;
	  y = yPos;
	}
	term.setTextColor(data.color)
	term.setCursorPos(data.bounds.x1, data.bounds.y)

	local text =
	  index==selected and "> "..data.text.." <" or
	  "  "..data.text.."  " --Essentially an if statement, but in a contracted form
	term.write(text)
	yPos = yPos+1 --Increment the initial y pos so we can move on the next line
  end
end

local function checkClick(x,y) --Check the mouse click to see if there's a menu option
  for index, data in pairs(menu_options) do
	if x>= data.bounds.x1 and x<= data.bounds.x2 and y==data.bounds.y then
	  return index --Returns the index of the clicked option
	end
  end
  return false --If it went through the entire for loop without success, return false
end

--term.setBackgroundColor(colors.white)
--term.clear()

local selector = 1 --Our selector
while true do --The main loop. I would generally put this inside of a function for a program.
  menuDraw(selector) --Draw the menu first
  local e = {os.pullEvent()} --Pull an event and put the returned values into a table
  if e[1] == "key" then --If it's a key...
	if e[2] == keys.down then -- ... and it's the down arrow
	  selector = selector < #menu_options and selector+1 or 1 --Increment the selector if the selector < #menu_options. Otherwise reset it to 1
	elseif e[2] == keys.up then
	  selector = selector > 1 and selector-1 or #menu_options --Decrement the selector if the selector > 1. Otherwise, reset it to #menu_options
	elseif e[2] == keys.enter then
	  break --Break out of the loop
	end
  elseif e[1] == "mouse_click" then
	local value = checkClick(e[3], e[4]) --Check the mouse click
	if value then --If checkClick returns a value and not false
	  selector = value --Set the selector to that value and break out of the loop
	  break
	end
  end
end

if selector==1 then
startGame()
else if selector==2 then
gameOptions()
else if selector==3 then
gameCredits()
end
end
end