Array Issues

Comments

• OZApps Guru

  January 2013 Accepted Answer

  A couple of things
  
  1. What is assets? you need to have that instantiated before you use it. So adding a line like

  assets = {}

  would help
  2. You need to position the line

  local dots = ...

  after the function declaration
  3. Since you are using

  self:addChild

  , you need that assets is an object that is has the addChild function. So the line we added in #1 needs to change to

  assets = Core.class(Sprite).new()

  then this should work for you.

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• Cyberience Member

  January 2013

  well, slap me with a wet fish, I am moving away from javascript, and stumbling into the way od doing things properly again, thanks. it hard trying to find working examples or a good reference book to show how its done.

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• BJG Member

  January 2013 edited January 2013

  I don't understand what this code is supposed to do. I was wondering if you intended something more like this...(but I'm probably talking nonsense...)

  Assets = Core.class(Sprite) function Assets:init(texture) local bitmap = Bitmap.new(Texture.new(texture)) self:addChild(bitmap) end local dots = {Assets.new("./images/1.png")}

  Otherwise, what is the idea of:

  local dots = { assets:init("./images/1.png")}

  (Just a novice here.)

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• john26 Maintainer

  January 2013

  I agree with @BJG. Also I think it should be

  local dots=Assets.new("/images/1.png")

  No need for curly brackets here I think (unless you really want dots to be a table whose first element is the newly-created asset.)
  
  I have used "/" not "./" as I think this is more correct. Gideros will automatically load your file from the Resources directory. The "." directory is really only meaningful when using a command prompt/Xterm window.

  Likes: Cyberience

  http://giderosmobile.com
  https://github.com/gideros/gideros
  https://www.youtube.com/c/JohnBlackburn1975
  

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• Cyberience Member

  January 2013

  yes, I get your meaning about the ./. thanks for that, as in terms of use, I am making an array of dots,, of which I solved the problem already, I needed to initialise the Assets class to work,

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• Cyberience Member

  January 2013

  the way it is now, and working is like this for reference, and hopefully will help others was like this.
  
  assets = Core.class(Sprite)
  
  function assets:init(texture)
  local bitmap = Bitmap.new(Texture.new(texture))
  bitmap:setAnchorPoint(0.5, 0.5)
  self:addChild(bitmap)
  end
  
  dots = { assets.new("./images/1.png"),
  assets.new("./images/2.png"),
  assets.new("./images/3.png"),
  assets.new("./images/4.png"),
  assets.new("./images/5.png") }
  
  local function onTouchesBegin(event)
  local dot = dots[event.touch.id]
  if dot then
  stage:addChild(dot)
  dot:setPosition(event.touch.x, event.touch.y)
  end
  end
  
  stage:addEventListener(Event.TOUCHES_BEGIN, onTouchesBegin)
  
  Theres more, like on move and touch end, but the above code is a complete cycle and works nice......
  

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