https://wiki.returnofreckoning.com/index.php?action=history&feed=atom&title=API%3AGetCraftingBackPackSlotsAPI:GetCraftingBackPackSlots - Revision history2026-10-17T14:22:18ZRevision history for this page on the wikiMediaWiki 1.43.11https://wiki.returnofreckoning.com/index.php?title=API:GetCraftingBackPackSlots&diff=30365&oldid=prevMaintenance script: UI Lua API import (WAR 1.4.8)2026-10-16T19:43:25Z<p>UI Lua API import (WAR 1.4.8)</p>
<p><b>New page</b></p><div>{{LuaApi|group=Crafting}}<br />
Returns, for each filled crafting slot of a trade skill, the backpack slot the item came from.<br />
<br />
<pre><br />
sources = GetCraftingBackPackSlots(tradeSkill)<br />
</pre><br />
<br />
== Arguments ==<br />
;tradeSkill : <code>number</code> – A <code>GameData.TradeSkills</code> value. The stock UI uses <code>APOTHECARY</code> (4) and <code>TALISMAN</code> (5).<br />
<br />
== Returns ==<br />
;sources : <code>table</code> – Table keyed by crafting slot, '''0''' to 7, the same keys as [[API:GetCraftingData|GetCraftingData]]. Crafting slots whose source is not in the inventory or crafting backpack have no entry.<br />
<br />
Each entry has these fields:<br />
{| class="wikitable"<br />
! Key !! Type !! Meaning<br />
|-<br />
| <code>slot</code> || <code>number</code> || Slot inside the backpack, starting at 1.<br />
|-<br />
| <code>backpack</code> || <code>number</code> || 2 for the main inventory or 4 for the crafting backpack (<code>EA_Window_Backpack.TYPE_INVENTORY</code> / <code>TYPE_CRAFTING</code>).<br />
|}<br />
<br />
== Details ==<br />
* Only items from the main inventory (slots 1–80) and the crafting backpack (slots 1–80) are reported.<br />
* The table can have gaps. The stock UI stops at the first missing index.<br />
* Nothing is returned for trade skill 0 or 7, or if there is no player object or the Lua state is not available. Other values are not range-checked.<br />
* Exactly one argument must be passed.<br />
<br />
== Errors ==<br />
None besides the generic ''Invalid Parameters'' message when the argument is missing or not a number.<br />
<br />
== Example ==<br />
From <code>default/ea_craftingwindow/source/talismanmakingwindow.lua</code>:<br />
<pre><br />
local backpackSlots = GetCraftingBackPackSlots( GameData.TradeSkills.TALISMAN )<br />
...<br />
for index = 0, TalismanMakingWindow.maxResources<br />
do<br />
if( not backpackSlots[index] )<br />
then<br />
break<br />
end<br />
local backpackSlot = backpackSlots[index].slot<br />
local backpackType = backpackSlots[index].backpack<br />
</pre><br />
<br />
== See also ==<br />
* [[API:GetCraftingData|GetCraftingData]]<br />
* [[API:RemoveCraftingItem|RemoveCraftingItem]]</div>Maintenance script