Thanx Chris for posting this query and Tab for solving it "in his head".
Been looking for the same thing for the longest time!
Regds
Dimple
>From: "Chris McCoy" <[EMAIL PROTECTED]>
>Reply-To: [EMAIL PROTECTED]
>To: [EMAIL PROTECTED]
>Subject: Re: <lingo-l> Urgent and tough .....Please Help
>Date: Sun, 06 May 2001 05:49:02 -0000
>
>Thanks man you saved me.
>You really did.
>I got what you mean.
>Thanks a lot.
>
>
>>From: Tab Julius <[EMAIL PROTECTED]>
>>Reply-To: [EMAIL PROTECTED]
>>To: [EMAIL PROTECTED]
>>CC: [EMAIL PROTECTED]
>>Subject: Re: <lingo-l> Urgent and tough .....Please Help
>>Date: Sat, 05 May 2001 22:32:10 -0400
>>
>>
>>What you want is a basic stack. It looks like this:
>>
>>on push info
>> global stack
>>
>> if (voidP(stack)) then
>> stack =[]
>> end if
>>
>> add(stack, info)
>>end
>>
>>
>>
>>on pop
>> global stack
>>
>> if (voidP(stack)) then
>> stack =[]
>> end if
>>
>> -- If stack is empty, you have nothing to return. You can return VOID,
>>or #empty,
>> -- or whatever works for you. You could give an alert or just have a
>>silent return.
>> numItems =count(stack)
>> if (numItems =0) then
>> alert "Pops exceed pushes!" -- Or make a put statement, or
>>something to let you know there's no more back
>> return(VOID)
>> end if
>>
>> -- Otherwise there's something to return
>> info =stack[numItems] -- Retrieve the last entry
>> deleteAt(stack, numItems) -- then kill it from the stack
>>
>> return(info) -- Send it back
>>end
>>
>>
>>so, to use it, you push whatever information you want to store. This
>>could
>>be a frame number, or a label, or whatever. Then, when they click the
>>back
>>button, you pop off the info, and go to whatever it is.
>>
>>So, as an example, when they click to go somewhere, you have a script
>>attached to the button that first, before you relocate, remembers where
>>you
>>are. Let's say for the sake of this demonstration that it's the frame
>>number (easy enough). So it's:
>>
>>on mouseUp
>> -- This is attached to the button that takes you somewhere
>>
>> push(the frame)
>>
>> -- Now relocate, etc...
>>end
>>
>>
>>
>>The back button, however, will retrieve the information, and go to it.
>>
>>on mouseUp
>> -- This is specific to the back button.
>>
>> lastLoc =pop()
>> if (voidP(lastLoc)) then
>> alert "Can't go back any further!"
>> return
>> end if
>>
>> -- Otherwise, it's good
>> go to frame lastLoc
>>end
>>
>>
>>I haven't tested this specific code out - just did it in my head - but it
>>should be fine.
>>
>>- Tab
>>
>>
>>At 01:22 AM 5/6/01 +0000, Chris McCoy wrote:
>>>Hi everybody.
>>>I have this problem...
>>>I intend to implement a Back Button for my multimedia cd rom.
>>>It's made with Director 8 and i want to add some smart features in it.
>>>I searched the web for available tips and tricks and i came up with this
>>>code:
>>>
>>>
>>>property spriteNum
>>>
>>>global gBackList, gBack
>>>
>>>on prepareFrame me
>>>if gBack = void then set gBack = false
>>>if gBackList = void then set gBackList = []
>>>if spriteNum < 1 then
>>> --framescript
>>> set totalBacks = count(gBackList)
>>> if gBack = false then
>>> --did not come from back button
>>> if totalBacks > 0 then
>>> set lastEntry = getAt(gBackList, totalBacks)
>>> else
>>> set lastEntry = ["", 0]
>>> end if
>>> if lastEntry <> [the moviePath & the movieName, the frame] then
>>> --not thecurrent frame, add tothe list
>>> add gBackList, [the moviePath & the movieName, the frame]
>>> end if
>>> else
>>> --came from the back button. Remove last entry
>>> deleteAt(gBackList, totalBacks)
>>> set gBack = false
>>> end if
>>>end if
>>>end
>>>
>>>on mouseUp me
>>>if gBack = void then set gBack = false
>>>if gBackList = void then set gBackList = []
>>>if spriteNum >= 1 then
>>> --is a button
>>> if count(gBackList) > 1 then
>>> --there are back locations
>>> set gBack = true
>>> set destination = getAt(gBackList, count(gBackList) - 1)
>>> if the moviePath & the movieName = getAt(destination, 1) then
>>> --same movie
>>> go to frame getAt(destination, 2)
>>> else
>>> --different movie
>>> go to frame getAt(destination, 2) of movie getAt(destination, 1)
>>> end if
>>> end if
>>>end if
>>>end
>>>
>>>on getBehaviorDescription me
>>>return "Drop this behavior on the framescript of each frame you want ot
>>>be
>>>included in the back button history. Also drop it on the back button and
>>>the script does the rest."
>>>end
>>>
>>>
>>>The author of this code doesn't give much explanation of how to use it
>>>...
>>>
>>>It is quite obvious that this script works only if in your movie you have
>>>only buttons and the script...
>>>Does anyone has the script for all cases....
>>>I am asking much here i know...!!!
>>>But if this someone has the solution to my problem
>>>it would be very appreciated if he/she shares it with me...
>>>Any recomentations?
>>>Thanks for your time....
>>>
>>>
>>>
>>>_________________________________________________________________________
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>>>
>>>
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>>>
>>
>>
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>
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