I’ve got the following code in main.lua and using storyboard.
I’m trying to create swipes which will change between scenes. It works in the Corona simulator but not in the Xcode simulator or on an iOS device. Not sure how to trouble shoot that.
Any help would be appreciated. If you need more info, let me know.
I’m using the latest build as of April 11, 2012 (783)
Here is my current main.lua file.
-----------------------------------------------------------------------------------------
--
-- main.lua
--
-----------------------------------------------------------------------------------------
local storyboard = require "storyboard"
display.setStatusBar( display.HiddenStatusBar ) -- hide the status bar
-- Global Variables
\_W = display.contentWidth;
\_H = display.contentHeight;
oldCurrentChapter = currentChapter
currentChapter = 0
nextChapter = 0
previousChapter = 0
currentSlide = 0
nextSlide = 0
previousSlide = 0
-- load menu.lua
storyboard.gotoScene( "c0s0" )
-- Add any objects that should appear on all scenes below (e.g. tab bar, hud, etc.):
-- Universal Swipe functions
local beginX
local beginY
local endX
local endY
local xDistance
local yDistance
function fileExists(fileName, base)
local path = system.pathForFile( fileName, system.ResourceDirectory )
if (path)then
local fhd = io.open( path )
print (path)
if fhd then
return true
end
end
end
function checkSwipeDirection()
xDistance = math.abs(endX - beginX)
yDistance = math.abs(endY - beginY)
if xDistance \> 50 or yDistance \> 50 then
if xDistance \> yDistance then
if beginX \> endX then
print("swipe left")
--Go to next scene
if fileExists(nextChapter .. ".lua") then
storyboard.gotoScene( nextChapter, "slideLeft", 800 )
end
else
print("swipe right")
--Go to previous scene
if fileExists(previousChapter .. ".lua") and (currentChapter ~= 0) then
storyboard.gotoScene( previousChapter, "slideRight", 800 )
end
end
else
if beginY \> endY then
print("swipe up")
--Move the scene up
if fileExists(nextSlide .. ".lua") then
storyboard.gotoScene( nextSlide, "slideUp", 800 )
end
else
print("swipe down")
--Move the scene down
if fileExists(previousSlide .. ".lua") then
storyboard.gotoScene( previousSlide, "slideDown", 800 )
end
end
end
else
--This was considered a touch event
--Run touch events here.
print ("This was a touch not a swipe")
end
end
function swipe(event)
if event.phase == "began" then
beginX = event.x
beginY = event.y
end
if event.phase == "ended" then
endX = event.x
endY = event.y
checkSwipeDirection();
end
end
Runtime:addEventListener("touch", swipe) And here is the first scene (base on scenetemplate.lua from storyboard) if you want to test it. If you want to add additional scenes, basically duplicate this file and change the “currentChapter” and “currentSlide” variables at the top. Name the files eg. c0s0.lua, c1s0.lua, c1s1.lua
----------------------------------------------------------------------------------
--
-- c0s0.lua
-- Chapter 0 Slide 0
--
----------------------------------------------------------------------------------
local storyboard = require( "storyboard" )
local scene = storyboard.newScene()
----------------------------------------------------------------------------------
--
-- NOTE:
--
-- Code outside of listener functions (below) will only be executed once,
-- unless storyboard.removeScene() is called.
--
---------------------------------------------------------------------------------
---------------------------------------------------------------------------------
-- BEGINNING OF YOUR IMPLEMENTATION
---------------------------------------------------------------------------------
-- Called when the scene's view does not exist:
function scene:createScene( event )
local group = self.view
-----------------------------------------------------------------------------
-- CREATE display objects and add them to 'group' here.
-- Example use-case: Restore 'group' from previously saved state.
-----------------------------------------------------------------------------
oldCurrentChapter = currentChapter
currentChapter = 0
nextChapter = "c" .. (currentChapter + 1) .. "s0";
previousChapter = "c" .. (currentChapter - 1) .. "s0";
oldCurrentSlide = currentSlide
currentSlide = 0
nextSlide = "c" .. currentChapter.."s" .. (currentSlide + 1);
previousSlide = "c" .. currentChapter.."s" .. (currentSlide - 1);
-- Create the slides for this chapter
-- Slide 0
local slide0 = display.newGroup();
local startBtn = display.newText( "Start", 0, 0, native.systemFont, 24 )
startBtn.x = \_W/2;
startBtn.y = \_H/2;
startBtn:setTextColor ( 255, 255, 255 );
local startSquare = display.newRect(0,0,180, 50);
startSquare.x = \_W - \_W/2;
startSquare.y = \_H - \_H/7;
startSquare:setFillColor(gradient);
slide0:insert(startSquare);
slide0:insert(startBtn);
-- Insert slides into parent group
group:insert(slide0)
end
-- Called immediately after scene has moved onscreen:
function scene:enterScene( event )
local group = self.view
-----------------------------------------------------------------------------
-- INSERT code here (e.g. start timers, load audio, start listeners, etc.)
-----------------------------------------------------------------------------
if oldCurrentChapter~=0 then
storyboard.removeScene( "c" .. oldCurrentChapter .. "s" .. oldCurrentSlide );
end
end
-- Called when scene is about to move offscreen:
function scene:exitScene( event )
local group = self.view
-----------------------------------------------------------------------------
-- INSERT code here (e.g. stop timers, remove listeners, unload sounds, etc.)
-----------------------------------------------------------------------------
end
-- Called prior to the removal of scene's "view" (display group)
function scene:destroyScene( event )
local group = self.view
-----------------------------------------------------------------------------
-- INSERT code here (e.g. remove listeners, widgets, save state, etc.)
-----------------------------------------------------------------------------
end
---------------------------------------------------------------------------------
-- END OF YOUR IMPLEMENTATION
---------------------------------------------------------------------------------
-- "createScene" event is dispatched if scene's view does not exist
scene:addEventListener( "createScene", scene )
-- "enterScene" event is dispatched whenever scene transition has finished
scene:addEventListener( "enterScene", scene )
-- "exitScene" event is dispatched before next scene's transition begins
scene:addEventListener( "exitScene", scene )
-- "destroyScene" event is dispatched before view is unloaded, which can be
-- automatically unloaded in low memory situations, or explicitly via a call to
-- storyboard.purgeScene() or storyboard.removeScene().
scene:addEventListener( "destroyScene", scene )
---------------------------------------------------------------------------------
return scene [import]uid: 111212 topic_id: 24772 reply_id: 324772[/import]