So I just joined the forums today because this problem has been bugging me for a while. When I go to milk a cow with a custom empty bottle, it works fine, and the bottle becomes "bottled milk". When I drink the milk, everything works as expected and I receive an empty bottle. But when I go to milk the cow again, the item becomes bottled milk and then reverts to an empty bottle after a few seconds, like it won't hold the milk. Not sure if it is running the code with the EnumAction.DRINK automatically or what. Below are my CustomBottledItem and MainEvents classes. Thanks.

Spoiler

public class CustomBottledItem extends Item implements IHasModel {

    public CustomBottledItem(String name) {
        super();

        setMaxStackSize(1);
        setUnlocalizedName(name);
        setRegistryName(name);
        setCreativeTab(Main.creativeTabs);

        ModItems.ITEMS.add(this);
    }


    public ItemStack onItemUseFinish(ItemStack stack, World worldIn, EntityLivingBase entityLiving) {

        super.onItemUseFinish(stack, worldIn, entityLiving);
        return new ItemStack(ModItems.EMPTY_BOTTLE);
    }

    @Override
    public int getMaxItemUseDuration(ItemStack stack)
    {
        return 32;
    }

    @Override
    public EnumAction getItemUseAction(ItemStack stack) {
        return EnumAction.DRINK;
    }

    @Override
    public ActionResult<ItemStack> onItemRightClick(World worldIn, EntityPlayer playerIn, EnumHand handIn) {
        playerIn.setActiveHand(handIn);
        return new ActionResult<ItemStack>(EnumActionResult.PASS, playerIn.getHeldItem(handIn));
    }

    @Override
    public void registerModels() {
        Main.proxy.registerItemRenderer(this, 0, "inventory");
    }
}

Spoiler

public class MainEvents {

    @SubscribeEvent
    public void onEntityRightClicked(PlayerInteractEvent.EntityInteract event) {
        //Current item
        ItemStack itemstack = event.getEntityPlayer().inventory.getCurrentItem();

        if (event.getTarget() instanceof EntityCow) {
            if (itemstack != null && itemstack.getItem() == ModItems.EMPTY_BOTTLE && !event.getEntityPlayer().capabilities.isCreativeMode) {
                event.getEntityPlayer().inventory.setInventorySlotContents(event.getEntityPlayer().inventory.currentItem, new ItemStack(ModItems.BOTTLED_MILK));
                event.getEntityPlayer().playSound(SoundEvents.ENTITY_COW_MILK, 1.0F, 1.0F);
            }
        }
    }
}

 

 

Edited November 17, 20186 yr by Siqhter

try stepping through your code with the debugger. Also, don't use IHasModel

Ok, thanks.

Edited November 18, 20186 yr by Siqhter

10 hours ago, Siqhter said:

itemstack != nul

What version of the game are you modding for?

 

The issue itself looks like a desync issue where the client thinks that it filled the bottle but the server disagrees. Make sure you are only "filling" the bottle on the server.

10 hours ago, V0idWa1k3r said:

What version of the game are you modding for?

 

The issue itself looks like a desync issue where the client thinks that it filled the bottle but the server disagrees. Make sure you are only "filling" the bottle on the server.

I think I understand what you are saying. I am currently modding on 1.12.2. And how would I check that it is only "filling" the bottle on the server?

Edited November 18, 20186 yr by Siqhter

2 hours ago, Siqhter said:

I am currently modding on 1.12.2.

Then this

22 hours ago, Siqhter said:

itemstack != null

will never be false since ItemStacks in 1.12.2 can't be null. Use ItemStack#isEmpty

 

2 hours ago, Siqhter said:

how would I check that it is only "filling" the bottle on the server?

The same way you check anything for the side it is performed on using World.isRemote

Ok, thanks for your help I think I'm getting it. Just to clarify I was looking through ItemMilkBucket's Class, and I found this. Is it basically just checking to make sure it's running on the server?

if (!worldIn.isRemote) entityLiving.curePotionEffects(stack);

Yes. World.isRemote will be true for a client world and false for a server. You can read more about sides here.

Ok, I guess I got it figured out. Would it make sense to return if(world.isRemote)?

Yes

V0idWa1k3r and Cadiboo thanks it works now.

Edited November 19, 20186 yr by Siqhter