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witherton
witherton
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Possible:Booleans in Arrays?

Jul 18, 2012 2:27 AM

I would like to use an array to A)define the Boolean state of a group of variables and B) check those variables. I have tried a bunch of different methods of doing this but get a bunch of different errors. Is this actually something that's possible? What would sample code look like?

541 Views   6 Replies   Latest reply: witherton, Jul 19, 2012 9:03 AM
 
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  • _spoboyle
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    1. _spoboyle,
    Jul 18, 2012 3:02 AM   in reply to witherton
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    definately possible, several different ways of doing no different to anything else really

     

    post code and errors for specific help

     

    var i:int = -1

     

     

    var boolArray:Array = [true, false, 3>2, true, false, false, i == -2, true];

    trace("4th bool: " + boolArray[3])

     

     

    if (boolArray[2])

    {

              trace("3rd bool is true");

    }

    else

    {

              trace("3rd bool is false");

    }

     
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  • witherton
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    2. witherton,
    Jul 18, 2012 3:55 AM   in reply to _spoboyle
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    Let's say I have this array:

     

    var buttons:Array=[button1, button2,button3]

     

    Instead of doing this for each index:

    var button1:Boolean=false

     

    I would like to do something like this:

    buttons[i]:Boolean=false

     

    Then I would like to be able to do something like this for conditional:

    if (buttons[i]=true){trace ("true")}

     
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  • _spoboyle
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    3. _spoboyle,
    Jul 18, 2012 4:06 AM   in reply to witherton
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    then you can just use buttons[i] = false;

     

    and

     

    if (buttons[i] == true) {trace("true")}

     

    (note using single = is an assigment not an equality)

     

    here is another demo that might help

     

    package

    {

              import flash.display.Sprite;

     

              public class Main extends Sprite

              {

                        private var buttons:Array;

     

                        public function Main()

                        {

                                  buttons = new Array();

     

                                  setUpButtons(6);

     

                                  testButtons();

                        }

     

                        private function testButtons():void

                        {

                                  for (var i:int = 0; i < buttons.length; i++)

                                  {

                                            if (buttons[i])

                                            {

                                                      trace("button " + i + " is true");

                                            }

                                            else

                                            {

                                                      trace("button " + i + " is false");

                                            }

                                  }

                        }

     

                        private function setUpButtons(len:int):void

                        {

                                  for (var i:int = 0; i < len; i++)

                                  {

                                            buttons[i] = false;

                                  }

                        }

              }

    }

     
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  • witherton
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    4. witherton,
    Jul 18, 2012 10:10 AM   in reply to _spoboyle
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    Ok, I've been playing around with this and it looks like you have to define the contents of the array as a variable first, then define the contents as a variable.

     
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  • _spoboyle
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    5. _spoboyle,
    Jul 19, 2012 12:52 AM   in reply to witherton
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    that will work but is not the case if you want to paste your code here I can get it to work without the variables first

     
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  • witherton
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    6. witherton,
    Jul 19, 2012 9:03 AM   in reply to _spoboyle
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    Thanks. This is the code:

     

    var button1, button2,button3;

    var buttons:Array=[button1, button2,button3];

    for (var i:uint=0;i<buttons.length; i++)

    buttons[i]=false;

    for (var j:uint=0;j<buttons.length; j++)

    if (buttons[j]!=true){trace([j])}

     
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