Lua Get Magic Level from an item

[Unknown Soldier]

Hi,

how do I get magic level attribute from an item in TFS 1.4.2?
It seems that there is no method like getMagicLevel, so I can't get it like for instance, armor value item:getType():getArmor()

Thanks in advance

 

[Roddet]

There is a method called getAbilities (github)

magicLevel = itemType:getAbilities().stats[4]
If you wonder how it works, here is a quick explanation

The function pushes all the stats, skills, absorbs into sub-tables
In this case we need the magicLevel points which is stored on the stats sub-table (git)

So lastly, we need to retrieve the value through a numeric index which in this case is 4 [enum -> (STAT_MAGICPOINTS<3> + 1) ]

 

[Unknown Soldier]

There is a method called getAbilities (github)

magicLevel = itemType:getAbilities().stats[4]
If you wonder how it works, here is a quick explanation

The function pushes all the stats, skills, absorbs into sub-tables
In this case we need the magicLevel points which is stored on the stats sub-table (git)

So lastly, we need to retrieve the value through a numeric index which in this case is 4 [enum -> (STAT_MAGICPOINTS<3> + 1) ]

Thanks! Love your help! It seems to be working and the script returns correct values of magic level attribute of an item.

I understand now how it works, but how do I know behind which index value hides which attribute? 4 is magic level, how about the rest? Couldn't find any clue in sources, or it's already too late for such tasks for me...

 

[Roddet]

I understand now how it works, but how do I know behind which index value hides which attribute?

Just by looking at the enums you can realize which index you need for each attribute

the stats sub_table uses the stats_t enum to create the array <git> - By default, enums start at 0 value

enum stats_t {
    STAT_MAXHITPOINTS, // 0
    STAT_MAXMANAPOINTS, // 1
    STAT_SOULPOINTS, // 2
    STAT_MAGICPOINTS, // 3

    STAT_FIRST = STAT_MAXHITPOINTS, // 0
    STAT_LAST = STAT_MAGICPOINTS // 3
};

However, those enum values are increased +1 when creating the array on Lua, just to start at index 1 instead 0

That takes us back to the magic level attribute. To parse that attribute value you would use 4 as index -> [STAT_MAGICPOINTS + 1]

Edit -> Here is a full list: Untitled (xjd2hyhe) - PasteCode.io (https://pastecode.io/s/xjd2hyhe)

 

[Unknown Soldier]

Just by looking at the enums you can realize which index you need for each attribute

the stats sub_table uses the stats_t enum to create the array <git> - By default, enums start at 0 value

enum stats_t {
    STAT_MAXHITPOINTS, // 0
    STAT_MAXMANAPOINTS, // 1
    STAT_SOULPOINTS, // 2
    STAT_MAGICPOINTS, // 3

    STAT_FIRST = STAT_MAXHITPOINTS, // 0
    STAT_LAST = STAT_MAGICPOINTS // 3
};

However, those enum values are increased +1 when creating the array on Lua, just to start at index 1 instead 0

That takes us back to the magic level attribute. To parse that attribute value you would use 4 as index -> [STAT_MAGICPOINTS + 1]

Edit -> Here is a full list: Untitled (xjd2hyhe) - PasteCode.io (https://pastecode.io/s/xjd2hyhe)

It is very clear now, thank you so much, I am sure that many people will find this useful.

One more thing, which is way beyond my initial question, just came out as a curiosity. Those are the attributes that are taken from the values given in items.xml, right? How about getting also the additional attibutes that were given through a scrip, in-game?

 

[Roddet]

One more thing, which is way beyond my initial question, just came out as a curiosity. Those are the attributes that are taken from the values given in items.xml, right? How about getting also the additional attibutes that were given through a scrip, in-game?

Yes, those values are strictly from items.xml

To get modified values on the attribute armor for example --
The most common method is to substract the base value from the current value

Quick example:

local baseValue = item:getType():getArmor()
local dynamicValue = item:getAttribute(ITEM_ATTRIBUTE_ARMOR)

if dynamicValue > 0 then -- # if value != 0 it means the armor attribute has been modified
    local modifiedValue = dynamicValue - baseValue
    if modifiedValue < 0 then
        print("the item armor has been reduced in " .. math.abs(modifiedValue) .. " points.")
    else
        print("the item armor has been increased in " .. modifiedValue .. " points.")
    end
else
    print("the item armor has not been modified.")
end

 

[Unknown Soldier]

Yes, those values are strictly from items.xml

To get modified values on the attribute armor for example --
The most common method is to substract the base value from the current value

Quick example:

local baseValue = item:getType():getArmor()
local dynamicValue = item:getAttribute(ITEM_ATTRIBUTE_ARMOR)

if dynamicValue > 0 then -- # if value != 0 it means the armor attribute has been modified
    local modifiedValue = dynamicValue - baseValue
    if modifiedValue < 0 then
        print("the item armor has been reduced in " .. math.abs(modifiedValue) .. " points.")
    else
        print("the item armor has been increased in " .. modifiedValue .. " points.")
    end
else
    print("the item armor has not been modified.")
end

Perfect, you killed it, that's something extra useful!