[1.12] Preventing crafting item from taking damage.

[_Bedrockbreaker_]

I have a working crafting item (a filter of sorts, specifically. Used to filter gunpowder into sulfur) that takes damage upon using it in a crafting recipe. The only problem is that it also takes damage upon mining a block, or hitting an entity. What can disable that? Would it be a simple method to override? I can't find any if there is.

[Daeruin]

Personally, if I smashed a filter into a solid block of stone, or started beating someone over the head with it with murderous intent, I would expect it to be somewhat damaged.

 

This is your custom item, correct? Have a look at all the methods in the vanilla Item class and see which ones seem like they'll do what you need. Your IDE can tell you where the methods get used. You'll benefit a lot from doing this kind of research and figuring out how things work for yourself.

 

For example, in 5 minutes, I found Item#onLeftClickEntity. It looks like you could override that method in your item and simply return true to make nothing happen when someone tries to attack an entity with your item.

[_Bedrockbreaker_]

15 hours ago, diesieben07 said:

Items do not take damage automatically. You have to actually write code to damage them. Do not write that code.

Oh. That should probably help. Yeah, just changed my class to extend from Item, and not ItemTool, then just set the max durability in the constructor. Worked fine.

 

18 hours ago, Daeruin said:

Personally, if I smashed a filter into a solid block of stone, or started beating someone over the head with it with murderous intent, I would expect it to be somewhat damaged.

 

...

 

For example, in 5 minutes, I found Item#onLeftClickEntity. It looks like you could override that method in your item and simply return true to make nothing happen when someone tries to attack an entity with your item.

Yeah, but the item is somewhat medium-difficult to make, and it only has 16 uses. Just makes it easier for the player not to be "oh that sucks. Now I have to make one again." And onLeftClickEntity passes the "hit" event, but returning true does nothing, and returning false makes the entity never take damage, or even act if it ever got punched.