Grimrock

Posted: **Thu Feb 06, 2014 12:37 am**

So I have three scripts here that all work fine on there own, the problem I have is if the three are all used at some point it causes the game to crash when trying to save, otherwise everything works fine

Code: Select all

function LvlComp()
   if (party:getChampion(2):getEnabled()) then
   
      local C1 = OrdinalScript.getChampionWithOrdinal(1);
      local C2 = OrdinalScript.getChampionWithOrdinal(2);
      
      while (C2:getLevel() < C1:getLevel()) do
         C2:levelUp();
      end
   end
end

function Lvl3()
 if (party:getChampion(3):getEnabled()) then
   
      local C1 = OrdinalScript.getChampionWithOrdinal(1);
      local C2 = OrdinalScript.getChampionWithOrdinal(3);
      
      while (C2:getLevel() < C1:getLevel()) do
         C2:levelUp();
      end
   end
end

function lvl4()
 if (party:getChampion(4):getEnabled()) then
   
      local C1 = OrdinalScript.getChampionWithOrdinal(1);
      local C2 = OrdinalScript.getChampionWithOrdinal(4);
      
      while (C2:getLevel() < C1:getLevel()) do
         C2:levelUp();
      end
   end
end

This first script just equalizes the levels of the party to the first party member, since the other members are found later in the dungeon

Code: Select all

function getChampionWithOrdinal(ordinal)
  for i=1,4 do
    if ( party:getChampion(i):getOrdinal() == ordinal ) 
 then     return party:getChampion(i);
    end
  end

  return nil;
end

This script is called on by the first script, its in an SE called OrdinalScript.

Code: Select all

function VainCheck(item)
   
   for champ = 1,4 do
   for slot = 1,8 do
      vainz = party:getChampion(champ):getItem(slot)
      if vainz ~= nil then
      if vainz.name == item then
        dm_irondoor_1:open()
timer_v:destroy()
      end
        end   
   end    
   end   
end



function checkShirt()
   VainCheck("Dandy_shirt")

end

function checkPants()
   VainCheck("Dandy_pants")

end

This last one checks if the party has a certain item on and opens a door, all three work fine, but if both the first and third script are run it causes a crash when saving "unable to serialize vainz against metatable"
Any ideas on how to fix this?

Posted: **Thu Feb 06, 2014 2:29 am**

A coder I am not, but I'm sure you're in a hurry for ideas to try, so I'll throw one out there (likely completely off base/wrong though.

I think I recall something to the effect of the variable (Vainz) being inside of a function, makes it a "local" variable, where it will not serialize a "Global" table. I'm not sure if I'm stating it correctly, or even if this is true. Anyway, you may try taking "Vainz" out of the function, and making it a global. Or perhaps combining the scripts so they aren't each "local", and trying to reference each other globally. Someone knowledgeable will likely come along shortly and see the actual problem. (Rather than my blind guessing)

Posted: **Thu Feb 06, 2014 4:16 am**

msyblade is guessing in the right direction: The problem is that when creating the savegame, the engine tries to store the variable "Vainz". At this time the variable holds an object (the item) which is not allowed for global variables / savegames. This will always result in a crash when trying to save a game. In this case it seems you don't really require the variable to be stored in a savegame, so the solution would be to declare Vainz as local:

Code: Select all

local  vainz = party:getChampion(champ):getItem(slot)

In case you need an object to be saved in a savegame for a script, you can save the object id instead and fetch the object via findEntity() when you need it in the script.

This official article explains it further:

http://www.grimrock.net/modding/save-ga ... variables/

Posted: **Thu Feb 06, 2014 1:07 pm**

It was just adding local, I noticed it after I posted but was all nah can't be cause it only crashes if the other script is run first, I had assumed that it had to be some kind of interaction but as if turns out was something simple, Thanks for the help guys.

Grimrock

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