addEventListener in Mashballs scene

saeys

Hi all,
I'm a big newbie, going through the Mashballs tutorial in the Gideros Mobile Game Development book.

In the start scene, there are 3 addEventListeners, but only the last one in the code works, the other 2 doesn't seem to "listen", I get no error on them either. If I move one of the two not-working addEventListeners to be the last, that one begins to work, and the other two before it doesn't. Hope you get what I mean...

Hope anyone can explain how to get several evenlisteners working in the same scene... (sorry for some swedish in the code, just ignore them)

Cheers, thomas

---
StartScene = Core.class(Sprite)

function StartScene:init()

print("\ninside start scene")

--lägg till bakgrundsbilden
local bg = Bitmap.new(Texture.new("images/bg.jpg", true))
bg:setAnchorPoint(0.5,0.5)
bg:setPosition(conf.width/2, conf.height/2)
self:addChild(bg)

--lägg till logotypen
local logo = Bitmap.new(Texture.new("images/logo.png", true))
logo:setAnchorPoint(0.5,0.5)
logo:setPosition(conf.width/2, conf.height/2 - 50)
self:addChild(logo)

--lägg till textknapp "starta spelet", lyssna efter onMouseUp
local startText = TextField.new(conf.fontLarge, "Starta spelet")
startText:setTextColor(0xffff00)
local startButton = Button.new(startText)
startButton:setPosition((conf.width - startButton:getWidth())/2, conf.height - 80)
self:addChild(startButton)
startButton:addEventListener("click", function()
print("startaspeletknappen")
sceneManager:changeScene("level", conf.transitionTime, conf.transition, conf.easing)
end)

--lägg till textknapp "inställningar", lyssna efter onMouseUp
local optionsText = TextField.new(conf.fontMedium, "Inställningar")
optionsText:setTextColor(0xffff00)
local optionsButton = Button.new(optionsText)
optionsButton:setPosition(30, conf.height - 30)
self:addChild(optionsButton)
optionsButton:addEventListener("click", function()
print("optionsknappen")
sceneManager:changeScene("options", conf.transitionTime, conf.transition, conf.easing)
end)

--lägg till textknapp "om spelet", lyssna efter onMouseUp
local aboutText = TextField.new(conf.fontMedium, "Om spelet")
aboutText:setTextColor(0xffff00)
local aboutButton = Button.new(aboutText)
aboutButton:setPosition(conf.width - aboutButton:getWidth() - 30, conf.height - 30)
self:addChild(aboutButton)
aboutButton:addEventListener("click", function()
print("aboutknappen")
sceneManager:changeScene("about", conf.transitionTime, conf.transition, conf.easing)
end)

saeys

Hmm, did I just post this in the category? :-/

pie

@saeys that's strange. I believe that the issue is somewhere else in your project.
did you notice that there's an "end" missing to close your init? maybe it's just this, maybe you missed it pasting in forum.
However to lua-format a post use tags:
< pre lang = " lua " >
your lua code
</ pre >
without spaces. it's a lot easier to read.

I made a little copy/paste of your init function in a empty game template, had to change
some things in references but your code is ok to me - just the init() end missing

saeys

thanks pie, I just missed pasting the last "end" in the forum, sorry about that. Thank you though for the tag tip!

I've gone through dependencies (don't think what's causing it) and references but can't find anything wrong (although I bet I'm missing something). What puzzles me is that, again, it's always the *last* addEventListener in the code that's leading to a expected behavior, it's like the two before weren't there. No matter how I rearrange them. I'm having a hard time understanding that something else in my project could be causing this.

The code one more time, readable: ;;)

StartScene = Core.class(Sprite)   function StartScene:init()   print("\ninside start scene")   --lägg till bakgrundsbilden local bg = Bitmap.new(Texture.new("images/bg.jpg", true)) bg:setAnchorPoint(0.5,0.5) bg:setPosition(conf.width/2, conf.height/2) self:addChild(bg)   --lägg till logotypen local logo = Bitmap.new(Texture.new("images/logo.png", true)) logo:setAnchorPoint(0.5,0.5) logo:setPosition(conf.width/2, conf.height/2 - 50) self:addChild(logo)   --lägg till textknapp "starta spelet", lyssna efter onMouseUp local startText = TextField.new(conf.fontLarge, "Starta spelet") startText:setTextColor(0xffff00) local startButton = Button.new(startText) startButton:setPosition((conf.width - startButton:getWidth())/2, conf.height - 80) self:addChild(startButton) startButton:addEventListener("click", function() print("startaspeletknappen") sceneManager:changeScene("level", conf.transitionTime, conf.transition, conf.easing) end)   --lägg till textknapp "om spelet", lyssna efter onMouseUp local aboutText = TextField.new(conf.fontMedium, "Om spelet") aboutText:setTextColor(0xffff00) local aboutButton = Button.new(aboutText) aboutButton:setPosition(conf.width - aboutButton:getWidth() - 30, conf.height - 30) self:addChild(aboutButton) aboutButton:addEventListener("click", function() print("aboutknappen!") sceneManager:changeScene("about", conf.transitionTime, conf.transition, conf.easing) end)   --lägg till textknapp "inställningar", lyssna efter onMouseUp local optionsText = TextField.new(conf.fontMedium, "Inställningar") optionsText:setTextColor(0xffff00) local optionsButton = Button.new(optionsText) optionsButton:setPosition(30, conf.height - 30) self:addChild(optionsButton) optionsButton:addEventListener("click", function() print("optionsknappen!") sceneManager:changeScene("options", conf.transitionTime, conf.transition, conf.easing) end)   --lyssna efter tryck på androids bakknapp self:addEventListener(Event.KEY_DOWN, function(event) if event.keyCode == KeyCode.BACK then if application:getDeviceInfo() == "Android" then application:exit() end end end) end

pie

@saeys I can see nothing wrong here :-??

Try comparing your project with my previous upload, the basics of scene manager and event listeners should be almost the same.
As an alternative you can zip and upload your project I will take a look to it (no warranties aout success though ) .

saeys

I compared with the complete project code that came with the book, and I found a piece of code in a button class that I, in an earlier stage, experimented with. "Back then" the "experiment" went well, but left there it caused this unwanted behavior. Deleted, all good now!

Thanks anyway for your quick replies! =D>