I need help with Variable Manipulation

Question

I've been searching on google for over an hour and a half to find Variable manipulation. It seems either you know how to do it or you don't. I'm trying to do 3 things:
I want a text box in which I enter text and it manipulates a variable so that when I press enter, the variable becomes that text.
I want to be able to at the click of a button either assign a variable or add to that variable, whether it be incrementing or adding larger numbers.
Finally, I want to be able to reveal those variable either at the click of a button or when the frame of the scene I'm making starts.
Could someone please explain to me either how to do it or where to look so I can teach myself?

Answer 1

Ok...after creating what you are looking for I think your confusion may be in global variables initialization with Director vs other languages.   Within Director it is necessary to reintialize the global variable within each script you need to access it in.
So what I have done is create a two slide movie...for lack of better names slide 1 and slide 2.
Step 1:  create the PrepareMovie Script - this script preloads the field (text box) with  "type your name".  In this case I just assigned "type your name" to the playerName global varialble.
On prepareMovie
  global playerName
  playerName="type your name"
  member("fName").text=playerName
end
Step 2:
Place cast members into slide 1
your name - text cast member
fname - field cast member
continue - sprite button
Step 3:
Place cast members into slide 2
verify - text cast member
recall - sprite button
reveal - text cast member
Result should look something like this in the score:
Step 4:  Scripts
Script 6 is nothing more than a "go to the frame" script to keep the play head in place.
on exitFrame me
  go to the frame
end
Script 7 just under the Slider 2 Marker
on prepareframe me
  global playerName
  member("verify").text="Just to be certain your name is " & playerName
end
The Continue Button Script - attach this to the button as button script
on mouseUp
  global playerName
  ---stuff within the field box
  playerName=member("fname").text
  go to next
end
The Reveal Button Script
on mouseUp me
  global playerName
  member("revealname").text=playerName
end
Thats it really....if its your first time using global variables inside director it can be a bit confusing if you are used to other programming languages.
Good luck