[zokemon]

Originally Posted by xAndrewx

public function setValue(oldVal, newVal)
(@ oldVal) = newVal;  

Bad names, here try this

public function setValue(stringName, newValue)
{
  (@ temp.stringName) = temp.newValue; 
} 

Also, all you're doing with 'this.on' is re-placing it into your core NPC...
You'd use a function like this on an item database, changing local item flags. [updating etc]

Originally Posted by zokemon

SECOND EDIT:

On second thought, that won't work either as "this.on" will be using the first NPC as "this" (in essence it would be the same as doing "core.setValue("core.on", (this.on = !this.on));")

Didn't realize someone would reply so fast!