menu.lua

local composer = require( "composer" )
local scene = composer.newScene()

local path_track      = "audio/Escape_Looping.wav"
local path_background = "imgs/background.png"
local path_title      = "imgs/title_virus.png"
local musicTrack
-- -----------------------------------------------------------------------------------
-- Code outside of the scene event functions below will only be executed ONCE unless
-- the scene is removed entirely (not recycled) via "composer.removeScene()"
-- -----------------------------------------------------------------------------------
local function gotoGame()
  composer.gotoScene("game", {time=800,effect="crossFade"})
end

local function gotoLocHighScore()
 composer.gotoScene("highscores", {time = 800, effect= "crossFade"})
end

local function gotoNetHighScore()
 composer.gotoScene("nethighscores", {time = 800, effect= "crossFade"})
end

local function loadAudio()
	musicTrack      = audio.loadStream( path_track)
end
-- -----------------------------------------------------------------------------------
-- Scene event functions
-- -----------------------------------------------------------------------------------

-- create()
function scene:create( event )

	local sceneGroup = self.view
	-- Code here runs when the scene is first created but has not yet appeared on screen
	local background = display.newImageRect(sceneGroup,path_background,800,1400)
	background.x = display.contentCenterX
	background.y = display.contentCenterY

	local title = display.newImageRect(sceneGroup,path_title,500,80)
	title.x = display.contentCenterX
	title.y = 200

	local playButton = display.newText(sceneGroup,"Play",display.contentCenterX,700,native.systemFont,44)
	playButton:setFillColor(0.82,0.86,1)
	
	local highScoresButton = display.newText(sceneGroup,"Local High Scores", display.contentCenterX, 810, native.systemFont, 44)
	highScoresButton:setFillColor(0.75,0.78,1)

	local netHighScoresButton = display.newText(sceneGroup,"World High Scores", display.contentCenterX, 920, native.systemFont, 44)
	netHighScoresButton:setFillColor(0.75,0.78,1)
	
	playButton:addEventListener("tap",gotoGame)
	highScoresButton:addEventListener("tap",gotoLocHighScore)
	netHighScoresButton:addEventListener("tap",gotoNetHighScore)

	loadAudio()
end


-- show()
function scene:show( event )

	local sceneGroup = self.view
	local phase = event.phase

	if ( phase == "will" ) then
		-- Code here runs when the scene is still off screen (but is about to come on screen)

	elseif ( phase == "did" ) then
		-- Code here runs when the scene is entirely on screen
        -- Start the music!
        audio.play( musicTrack, { channel=1, loops=-1 } )
	end
end


-- hide()
function scene:hide( event )

	local sceneGroup = self.view
	local phase = event.phase

	if ( phase == "will" ) then
		-- Code here runs when the scene is on screen (but is about to go off screen)

	elseif ( phase == "did" ) then
		-- Code here runs immediately after the scene goes entirely off screen
        -- Stop the music!
		audio.stop( 1 )
		composer.removeScene( "menu" )
	end
end


-- destroy()
function scene:destroy( event )

	local sceneGroup = self.view
	-- Code here runs prior to the removal of scene's view
  audio.dispose( musicTrack)
end


-- -----------------------------------------------------------------------------------
-- Scene event function listeners
-- -----------------------------------------------------------------------------------
scene:addEventListener( "create", scene )
scene:addEventListener( "show", scene )
scene:addEventListener( "hide", scene )
scene:addEventListener( "destroy", scene )
-- -----------------------------------------------------------------------------------

return scene