upcase?

[Kaito]

Hiya...Well...I found this method in a script I'm editing...:

      }
      if count > 0
        hit = steal_prob * 200
        items.size.times { |i|
          hit = [hit / 2, 1].max
          next if self.stolen_items_flag[i]
          item = items[i]
          hit_result = (rand(100) < hit)
          if hit_result
            [COLOR=Red][b]case item[0].upcase[/b][/COLOR]
            when "B"
              self.stolen_items_flag[i] = true
              next
            when "I" 
              steal_item = $data_items[item[1]].name
              $game_party.gain_item(item[1], 1)
            when "W"
              steal_item = $data_weapons[item[1]].name
              $game_party.gain_weapon(item[1], 1)
            when "A"
              steal_item = $data_armors[item[1]].name
              $game_party.gain_armor(item[1], 1)
            when "G"
              steal_item = item[1]
              $game_party.gain_gold(item[1])
            end
            self.stolen_items_flag[i] = true
            break
          end
        }

Well...What is it? The script doesn't have the definition, and I never saw it before... o.O

thank you for any help,
cya~

 

[linkz0r]

If it´s a String, probably the author wanted to make all of them in upcase, like

myString = "Hiya!"
myString.upcase
p mystring    => "HIYA!"

This only works for letters ^^

 

[Kaito]

Ow?
Hurmmm...Still, I get an undefined method...Is there a written def for it, or is it hidden?

thankies~

 

[linkz0r]

It´s in the default Ruby´s code (note RUBY, not RGSS^). It´s a built-in function for String.

Also, try to see the class of this variable by printing it before that line. Like:

#.......more code above....
if hit_result
# NEW
p item[0].class
case item[0].upcase
#......more code below......

This is just for debugging issues. If it´s not a String class, it´ll surely give nomethod errors.

 

[Kaito]

Hurm...I got a NilClass printed. ;x
what does that means?

 

[linkz0r]

Means that somewhere on your script you´re defining somrthing wrong, or that you may be putting a wrong index for that array. Is it a battle system script?

 

[Kaito]

It's a steal scipt...Editing it to fit RTAB...Almost got it I think.
Neways...Removing .upcase does make it work...No more error. Do you think it will affect the script if .u[pcase is removed?

thankies~
cya!

 

[linkz0r]

Maybe, i don´t know how this script IS, from the inside. This is something that you´ll notice with the time, while test playing it.

But at least your problem is solved ^^

 

[Kaito]

haha...Guess so.^^
I'll post if I have more problem later,

thankies,
cya~

 

[MagicMagor]

Just a note:
There are two methods "upcase" and "upcase!". The difference is, the one without ! will create a copy of the string, modify this copy and return it. The one with ! will modify the string itself.

So:

foo = "foo"
bar = foo.upcase
p bar => "FOO"
p foo => "foo"

foo.upcase!
p foo => "FOO"

There are several different methods in the string-class where this ! is used to differ this behavior.