[JASS] Detect that one unit gives an item to another explicitely

[Barade]

Hi,
recently I've played around a bit with target orders and item events.

Currently I want to recognize when a hero gives an item to another hero.
What I could detect was when the hero drops an item and the other hero gets an item but these two events are seperate from each other.

No order event was triggered on giving the item from one hero to another.

How is this possible with JASS? I need this since I want to restrict some items ownership to the players and they should not be able to be picked up by an ally hero EXCEPT the hero gives the item to the allied hero explicitely.

 

[BPower]

GetItemOwner is the name of the snippet you'll need. Nestharus wrote it, you can google it.

 

[Barade]

Hm, so I found out it would be enough to reset the item's player simply on dropping the item. I've called:

call SetItemPlayer(usedItem, null, false)

but it does not seem to work.
Do I have to use neutral passive? I thought the default player is null.

 

[edo494]

null player is null, no player, there is no default player, so the function most likely didnt even run(it stopped after check to see if input is valid)

 

[WaterKnight]

I do not recall setting the player of an item to have any intrinsic effect. I guess you could catch orders and/or mark when an item has truly been dropped.

 

[Barade]

Hm I did a small test placing items and displaying the default item owner on picking them up. It seems that the default owner is neutral passive (prints player 16), so I will simply set the item's owner back to neutral passive when a hero drops it.

Is an item's owner used in any other way or is your concern simply about using a globally accessable property?

 

[WaterKnight]

Afaik that property is not used in any other way nor set. So yes, you can use it as a marking. I think passing an item to another unit triggers the drop event though, so you have to pay attention how to distinguish it.

 

[Xonok]

You can use a 0-timer to explicitly know when an item is given to another unit. Even due to input delay it's simply impossible to drop an item AND pick it up with another unit at the same moment, so the only possibility is that it was given.