Hi! I'm having some trouble producing an item (a bucket) that can milk cows when right-clicked.  Here's my current attempt, that is like the code on ItemSmeltedEvent to handle the crafting.

 

FMLCommonHandler.instance().bus().register(new EntityInteract());

 

public class EntityInteract
{
@SubscribeEvent
public void onEntityInteract(EntityInteractEvent event)
{
	if (event.target instanceof EntityCow && event.entityPlayer.getCurrentEquippedItem() == new ItemStack(FTea.teaCup))
	{
		event.entityPlayer.inventory.addItemStackToInventory(new ItemStack(FTea.milk));
	}
}
}

you didn't really list what your problem was so I can only guess to the solution.

 

I'm assuming the item doesn't appear in your hand.

 

Instead of adding an itemstack to the player inventory, you should change the item in his hand.

event.entityPlayer.getCurrentEquippedItem() == new ItemStack(FTea.teaCup)

This is never true. Learn basic java.

Yes. You cannot say

if (something == new SomeClass())

Try

if (event.target instanceof EntityCow && event.entityPlayer.getCurrentEquippedItem().getItem() == FTea.teaCup)

 

Hope it works.

Thanks for helping! I had to write this:

MinecraftForge.EVENT_BUS.register(new EntityInteract());

instead of this because the event is in MinecraftForge:

FMLCommonHandler.instance().bus().register(new EntityInteract());

 

Also the mistake above was a problem