Messagebox Tutorial/Set Variables

This code allows the player to use a menu to set a variable to any number (I suppose it's limited by the short/long variable limits). Basically, the player is given the current number the variable is set to, and is allowed to change it from -2 to +2. If they want to change it by more than that, they can modify it by -10, -5, +5, or +10 and then the menu is displayed again, with the new number. This allows the player to select any number (i.e., if they want -3, they would choose -5 and then +2). Due to the limit of the number of choices available, there can only be one other option. For most, this option should be Return to Previous Menu. Here's an example: (NumNewIngsDefault is the variable that the player is setting. Also, due to wiki limitations, the messagebox has several line breaks even though these wouldn't be in the CS script)

...
        elseif (Choosing == -22)
          messagebox "Set the default number of essences to be created.
                     (Currently %g)", NumNewIngsDefault,
                            "About 10 fewer (-12 to -8)"
                            "About 5 fewer (-7 to -3)"
                            "Default to that amount -2"
                            "Default to that amount -1"
                            "Default to that amount"
                            "Default to that amount +1"
                            "Default to that amount +2"
                            "About 5 more (+3 to +7)"
                            "About 10 more (+8 to +12)"
                            "Return to previous menu"
          set Choosing to 22
          set Choice to GetButtonPressed

        elseif (Choosing == 22)
          if (Choice == -1)
            set Choice to GetButtonPressed
            return
          elseif (Choice == 0) ;10 fewer
            set NumNewIngsDefault to (NumNewIngsDefault - 10)
            set Choosing to -22
            return
          elseif (Choice == 1) ;5 fewer
            set NumNewIngsDefault to (NumNewIngsDefault - 5)
            set Choosing to -22
            return
          elseif (Choice == 7) ;5 more
            set NumNewIngsDefault to (NumNewIngsDefault + 5)
            set Choosing to -22
            return
          elseif (Choice == 8) ;10 more
            set NumNewIngsDefault to (NumNewIngsDefault + 10)
            set Choosing to -22
            return
          elseif (Choice == 2) ;-2
            set NumNewIngsDefault to (NumNewIngsDefault - 2)
            set Choosing to -21
            return
          elseif (Choice == 3) ;-1
            set NumNewIngsDefault to (NumNewIngsDefault - 1)
            set Choosing to -21
            return
          elseif (Choice == 4) ;Cancel
            set Choosing to -21
            return    
          elseif (Choice == 5) ;+1
            set NumNewIngsDefault to (NumNewIngsDefault + 1)
            set Choosing to -21
            return
          elseif (Choice == 6) ;+2
            set NumNewIngsDefault to (NumNewIngsDefault + 2)
            set Choosing to -21
            return 
          elseif (Choice == 9) ;Return to previous menu
            set Choosing to -2
            return
          endif
...

Mins and Maxs

If you want to use minimums and/or maximums for the variable, you'll need to run checks at a few key locations. To cover all of the -10, -5, +5, +10 options place the check right before the MessageBox function, as such:

...
        elseif (Choosing == -22)
          if (NumNewIngsDefault < 0)
            set NumNewIngsDefault to 0
          endif
          messagebox "Set the default number of essences to be created.
                     (Currently %g)", NumNewIngsDefault,
...

You have 2 options for the other, variable-changing options (-2, -1, +1, +2):

• Place the check(s) inside each of those Choice sections, as such:

...
          elseif (Choice == 2) ;-2
            set NumNewIngsDefault to (NumNewIngsDefault - 2)
            if (NumNewIngsDefault < 0)
              set NumNewIngsDefault to 0
            endif
            set Choosing to -21
            return
...

• Place the check(s) in a menu that all of them run through. In this case, all of these Choices run through Choosing == -21, so all of the checks(s) can be placed immediately before the MessageBox function of that menu, as such:

...
        elseif (Choosing == -21)
          if (NumNewIngsDefault < 0)
            set NumNewIngsDefault to 0
          endif
          messagebox "Creation Options:"
                          "Set default number of ingredients"
...