I am creating a game using storyboard most of it is working smoothly as far as moving between scenes but when in my game.lua the words created with the next word function will not go away. They will continue to display and function when the home touch takes me back to the start.lua.
Here is the code for the game.lua. From my research so far I've already gathered that I need to somehow put that newQuestion function into a display object so it can be inserted into the screenGroup.
--lua for game
--creates the storyboard variable and calls the storyboard api
local storyboard = require ("storyboard")
local content = require "content"
local operations = require "operations"
local defaultWidth = 1024
local defaultHeight = 768
local displayWidth = display.viewableContentWidth
local displayHeight = display.viewableContentHeight
local centerX = defaultWidth/2;
local centerY = defaultHeight/2;
local maxSightwords = 3
local currQuestion = 0
local playOrder
local randWord1
local randWord2
local wordButtons
local wrongGraphic
local correctButton
local nextQuestion
local homeButton
--tells storyboard to create a new scene
local scene = storyboard.newScene()
-- assign random order for words
playOrder = operations.getRandomOrder(#content)
randWord1 = operations.getRandomOrder(#content)
randWord2 = operations.getRandomOrder(#content)
local function onHomeTouch(event)
if event.phase == "began" then
storyboard.gotoScene("start")
end
end
function scene:createScene(event)
local gameScreen = self.view
--creates a transparent background image centered on the display
local gameBackground = display.newImage("images/graphics/jungle1.jpg")
gameBackground.x = display.contentWidth/2
gameBackground.y = display.contentHeight/2
gameScreen:insert(gameBackground)
homeButton = display.newImage("images/buttons/home.png")
homeButton.alpha = .8
homeButton.y = 70
gameScreen:insert(homeButton)
end
function scene:enterScene(event)
local screenGroup = self.view
homeButton:addEventListener("touch", onHomeTouch)
nextQuestion ()
end
function scene:exitScene(event)
homeButton:removeEventListener("touch", onHomeTouch)
end
function scene:destroyScene(event)
end
--***** game functions *****--
function nextQuestion()
-- update question number index
currQuestion = currQuestion+1
if currQuestion > #playOrder then
currQuestion = 1
end
local questionNumber = playOrder[currQuestion]
print("Question# "..currQuestion)
print("id "..content[questionNumber].id)
-- make word buttons
wordButtons = {}
-- make word button for correct word
--picks a word from the content table
local word = content[playOrder[currQuestion]].word
--inserts the word in the form of an image into the wordButtons table
table.insert(wordButtons, operations.newWordButton(word))
--identifies the first item in the wordButtons.graphics array as the correct answer
correctButton = wordButtons[1].graphics
local buttonWidth = 150
playWord ()
-- ****make random word button 1***
local Rword1 = content[randWord1[currQuestion]].word
print (Rword1)
for i=1, 1 do
table.insert(wordButtons, operations.newWord1Button(Rword1))
end
-- ****make random word button 2***
local Rword2 = content[randWord2[currQuestion]].word
print (Rword2)
for i=1, 1 do
table.insert(wordButtons, operations.newWord2Button(Rword2))
end
-- position letter buttons and add touch event listener
local randomWordOrder = operations.getRandomOrder(#wordButtons)
local buttonSpacing = buttonWidth * 1.5
local buttonsWidth = (#wordButtons * buttonWidth) + ((#wordButtons-1) * (buttonSpacing/4))
local buttonsX = centerX - (buttonWidth)
for i=1, #wordButtons do
local button = wordButtons[i].graphics
button.xScale = 1.5
button.yScale = 1.5
button.y = centerY
button.x = buttonsX + (buttonSpacing * (randomWordOrder[i]-1))
button:addEventListener("touch", onWordTouch)
--local randomDelay = transitionDuration + (math.random(1,10) * 10)
--transition.from(button, {time = 500, delay = randomDelay, y = defaultHeight + button.height})
end
return wordButtons
end
function clearQuestion()
-- remove wrongGraphic if present
if wrongGraphic then
wrongGraphic:removeSelf()
wrongGraphic = nil
end
-- remove all word buttons
for i=1,#wordButtons do
wordButtons[i].graphics:removeSelf()
wordButtons[i].graphics = nil
end
end
function onWordTouch(event)
local t = event.target
if "ended" == event.phase then
if t == correctButton then
onCorrect()
else
onIncorrect(t)
end
end
end
function onIncorrect(incorrectButton)
media.playSound("sounds/splat.wav")
wrongGraphic = display.newImageRect("images/graphics/wrong.png", 137, 136)
wrongGraphic.x = incorrectButton.x
wrongGraphic.y = incorrectButton.y + incorrectButton.height/2
transition.to(incorrectButton, {time=100, delay=500, alpha=0})
transition.to(wrongGraphic, {time=200, delay=500, alpha=0, onComplete=wrongCompleteListener})
local wrongCompleteListener = function(obj)
obj:removeSelf()
obj = nil
incorrectButton:removeSelf()
incorrectButton = nil
end
end
function onCorrect()
-- play correct sound then display word
media.playSound("sounds/correct.mp3", playWord)
-- remove the letter buttons
clearQuestion()
nextQuestion ()
-- disable the home button until new screen is shown
homeEnabled = false
end
function playWord()
local audioFile = "sounds/words/"..content[playOrder[currQuestion]].id..".wav"
media.playSound(audioFile, showWord)
end
--the actual event listeners that make the functions work
scene:addEventListener("createScene", scene)
scene:addEventListener("enterScene", scene)
scene:addEventListener("exitScene", scene)
scene:addEventListener("destroyScene", scene)
return scene
What am I missing?
