Can you change the item property Item.isFireResistant() on an existing Item? If yes, how?

Item.Properties().fireResistant()
Example:

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public static final RegistryObject<Item> GUNSHOTAMMO_9x8 = REGISTRY.register("gunshotammo_9x8",
            () -> new GunShotAmmo_9x8(new Item.Properties().tab(CreativeModeTab.TAB_MISC).setNoRepair().fireResistant()));

 

 

Edited September 7, 20223 yr by Luckydel

2 minutes ago, Luckydel said:

Item.Properties().fireResistant()
Example:

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public static final RegistryObject<Item> GUNSHOTAMMO_9x8 = REGISTRY.register("gunshotammo_9x8",
            () -> new GunShotAmmo_9x8(new Item.Properties().tab(CreativeModeTab.TAB_MISC).setNoRepair().fireResistant()));

 

 

I meant changing the property not in the Registry, but for an alreading existing Item. 

So something like that:

ItemStack playerItem = player.getMainHand;

playerItem.isFireResistant = true;

You can do that if you use an access transformer. https://forge.gemwire.uk/wiki/Access_Transformers

But that will change all ItemStacks for that item, not just the ItemStack being held by the player.

5 minutes ago, warjort said:

You can do that if you use an access transformer. https://forge.gemwire.uk/wiki/Access_Transformers

But that will change all ItemStacks for that item, not just the ItemStack being held by the player.

So I cannot change the burnability of a Single ItemStack? 

 

My usecase would be an "case"-item, which can be applied to any item to make it fire resistent (like netherite) 

In that case it is the ItemEntity/ItemStack that needs to be fire proof not the Item.

 

To do that you would need to put some additional data in the ItemStack NBT to say it is fireproof.

Then when the ItemEntity is spawned into the world you replace it with your own custom ItemEntity that has something like:

   @Override
   public boolean isInvulnerableTo(DamageSource pSource) {
      return super.isInvulnerableTo(pSource) || pSource.isFire(); // Add check to ignore fire damage
   }

You can see an example of replacing an ItemEntity spawn here: 

https://github.com/MinecraftForge/MinecraftForge/blob/73c1934e7ef931bafbafd0ceb6dce4cdd5dc02a2/src/main/java/net/minecraftforge/common/ForgeInternalHandler.java#L36

Instead of checking for hasCustomEntity() you see if the ItemStack has your "fireproof" NBT.

Edited September 7, 20223 yr by warjort