[1.11.2]Auto-repairing item

[Villfuk02]

I made custom item with durability and i want it to slowly repair, how can i call something every tick?
i found no methods for ticking item unless it's being used or equipped as armor

 

thx for any help

 

[larsgerrits]

Item#onUpdate is called every tick while the Item is in your inventory.

[Villfuk02]

does it also work with chests and other inventories?

 

[larsgerrits]

No, Item#onUpdate only works in your player inventory. You'd have to use a tick event to update the Item in the world or inside blocks.

[Villfuk02]

Ok, thanks

[Draco18s]

Don't use a tick event to update the item if its inside an inventory. You would have to search the entire world for inventories, then search every slot in the inventory.

 

And do that every tick.  This is a bad, bad idea.

[larsgerrits]

3 minutes ago, Draco18s said:

Don't use a tick event to update the item if its inside an inventory. You would have to search the entire world for inventories, then search every slot in the inventory.

 

And do that every tick.  This is a bad, bad idea.

 

 

Well, he could use the tick event to count ticks, and do something like every 10-20 seconds, then go through World#loadedTileEntityList for each inventory loaded in the world. Might still be expensive, but better than doing it every tick for the entire world.

[Villfuk02]

Ok, and what if i want to make the item consume XP from the player to repair, is there a way to remove the XP from a player?

[Draco18s]

Yes.  Go look at the EntityPlayer class, you'll find it.

[jeffryfisher]

Sounds like the Mending enchantment. Find its code and see what it does.

[Draco18s]

Just now, jeffryfisher said:

Sounds like the Mending enchantment. Find its code and see what it does.

Mending intercepts exp pickups.  I think he wants it to repair by extracting exp from the player.

It's doable. I've done it before (not as a mending item, but as a block that when you touched it would leech your exp away). There were a few edge cases to handle, but it's not that hard.