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Basic help with Flash v10 (creating a simple calculator)

May 18, 2010 10:11 PM

I have Adobe CS4 Pro with Flash v10.  I'm trying to create a simple, basic calculator that adds 2 numbers.  I followed the tutorial at http://layersmagazine.com/flash-design-calculator.html.  At first, I was unable to assign variables to any objects, but got that cleared up by selecting ActionScript 2.0 (was set to 3.0).  At this point, the calculator accepts the two numbers, but when I select the "add" button with the associated code as shown in the tutorial, nothing happens.  Does anyone have a suggestion as to what I might be doing wrong?  Thanks.

378 Views   9 Replies   Latest reply: kglad, Jan 29, 2013 9:30 AM
 
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  • kglad
    62,165 posts
    Jul 21, 2002
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    1. kglad,
    May 18, 2010 11:05 PM   in reply to paprmakr213
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    use the trace() function to debug your code.

     

    you can start by checking if your listeners are called when your button is clicked.

     
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  • paprmakr213
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    2. paprmakr213,
    May 19, 2010 12:26 PM   in reply to kglad
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    Thanks for your reply.  I am truly a novice at Flash, so I'm not sure how to check my listeners.  I did use the Trace() function, and the only output I'm getting is "NaN" (NotANumber).  I don't understand this since I've defined both of my input variables as number - Number(firstnumber) and Number(secondnumber).  I tried defining the output as a number - Number(total) - but then got a compiler error.

     
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  • kglad
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    Jul 21, 2002
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    3. kglad,
    May 19, 2010 1:26 PM   in reply to paprmakr213
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    copy and paste a short snippet of your code that's causing an error.

     
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  • paprmakr213
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    4. paprmakr213,
    May 19, 2010 2:13 PM   in reply to kglad
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    This is all the code there is:

     

    on(release) {
    total = Number(firstnumber)+Number(secondnumber);
    }

    There's really not an error--I just don't get any output.  I've created two 'Input Text' boxes, and on the properties tab for each I have defined the "Variable:" field as either 'Number(firstnumber)' or 'Number(secondnumber)'.  I've also created a 'Dynamic Text' box and defined the "Variable:" field as 'Number(total)'.

     

    Note:  the example I was following did not specify to include the 'Number()' function in the "Variable:" fields.  However, when I don't, and I run 'Test Movie', the 3 boxes are automatically filled with "_level0.firstnumber", "_level0.secondnumber" and "_level0.total".  When I type 2 numbers in to the 2 'Input Text' boxes, and then select my button that has the above code associated with it, I get "NaN" in the output ('Dynamic Text') box.

     

    Thanks again for your help!

     
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  • kglad
    62,165 posts
    Jul 21, 2002
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    5. kglad,
    May 19, 2010 2:39 PM   in reply to paprmakr213
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    remove all those textfield variables from the properties panel.  if you also did the same thing for the total textfield and it has instance name total, use:

     

    on(release){

    total.text =Number(firstnumber.text)+Number(secondnumber.text);

    }

     
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  • paprmakr213
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    6. paprmakr213,
    May 19, 2010 3:08 PM   in reply to kglad
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    That worked!  I'm still not sure why none of the examples that I found on the web mentioned the '.text', but oh well.  Thank you so much for your time and assistance!

     
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  • kglad
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    Jul 21, 2002
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    7. kglad,
    May 19, 2010 5:17 PM   in reply to paprmakr213
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    you're welcome.

     
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  • RSchenck302@Hotmail.com
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    8. RSchenck302@Hotmail.com,
    Jan 29, 2013 8:49 AM   in reply to kglad
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    This works fine for text.  I am having the same difficulty creating a dynamic score box.

     

    For example,

    onClipEvent (enterFrame)  {

     

            if(this.hitTest(MC2)) {

                score++;

     

    }

     

         

    }

     

    Message was edited by: RSchenck302@Hotmail.com

     
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  • kglad
    62,165 posts
    Jul 21, 2002
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    9. kglad,
    Jan 29, 2013 9:30 AM   in reply to RSchenck302@Hotmail.com
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    start a new thread on the as1/as2 forum:  http://forums.adobe.com/thread/1141486?tstart=0

     
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