How to get AI Hero Units to Not Drop Items???

[Gnuoy]

AI controlled heroes drop items from their inventory despite those items being set as un-droppable via trigger and Object Editor. The items are put into their inventory via Unit Properties window.

I tried various different trigger options, like make item of type and item in slot un-droppable. Nothing seems to work and they keep dropping the items from their inventory when they have an opportunity to pick up other items. Is this some new Reforged bug? I swear this was working as intended recently.

• Item - Make (Item carried by Unit_Var in slot 1) Undroppable

• Item - Make (Item carried by Unit_Var of type Black Knight's Enchanted Halberd) Undroppable

Is it possible to stop them from dropping these items?

Thank you for reading.

 

[Gnuoy]

Ok I found a solution that I think is worth sharing and is actually missing from most articles about items.

Stats - Priority in Object Editor under Items changes the AI heroes item selection in a predictable way. Higher number = higher priority.

Edit: the below trigger doesn't seem to work either...

I changed the Stats - Priority of the item to be higher and the AI isn't dropping it anymore. Still needs more testing...

• NPC Items
  • Events
    • Time - Elapsed game time is 16.00 seconds
  • Conditions
  • Actions
    • -------- Unit 1 --------
    • Item - Create Item at Point_Var
    • Item - Make (Last created item) Undroppable
    • Hero - Give (Last created item) to Unit_Var

 

[AbsolutePsycho]

Are you talking about melee AI or some custom AI?

 

[Gnuoy]

I'm talking about a Computer player running GUI AI script, the "Stats - Priority" of the items seems to affect its behavior if the "Melee" option is checked or not.

 

[AbsolutePsycho]

If this is GUI AI script, then you need to manually find all calls to UnitDropItemPointLoc() and add extra condition:

if BlzGetItemBooleanField(itm, ITEM_BF_CAN_BE_DROPPED) then
    call UnitDropItemPointLoc(...)
endif

I guess in GUI it would look like this:

• Custom script: if BlzGetItemBooleanField(udg_tempItem, ITEM_BF_CAN_BE_DROPPED)
• Unit - Order (...) to drop (...) at (...)
• Custom script: endif