I just cant figure out how to replace the item in your hand when you right click on a cow.  :'(

 

I am trying to make a dirtBucket, for water and lava it is working fine. But what code should I use to replace the dirtBucketEmpty to dirtBucketMilk when I right click a cow.

 

All help is welcome 

If you are not already using EntityInteractEvent, then I would recommend that you do so.

 

The event#getEntityPlayer = the player.

The event#getTarget() = the entity the player interacts with.

The event#getItemStack() = what the player is holding (Can be null! Always null-check)

 

To set new ItemStack, just use

event.getEntityPlayer().inventory.setInventorySlotContents(event.getEntityPlayer().inventory.currentItem, your new ItemStack);

 

But I want to code it for Minecraft 1.9.4. The problem is that I cant find EntityInteractEvent. 

I did what you said: But EntityInteractEvent does not exists for forge MC 1.9.4

I still don't manage to make the code work... Could you give me an example?

the only thing I still need is where I can find the registered Entities. Like when using blocks: blocks.OBSIDIAN . But Where can I find this for Entities? I guess Entity.EntityCow isn't the right because it doesn't works.

Entities aren't singletons the same way blocks and items are. You need to check if the entity is an

instanceof EntityCow

or an instance of whatever entity class you're targeting.