[1.9.4] Velocity & Ammo Requirements

[Bloopers]

Hello, I've created this item that will charge up like a bow and shoot an ender pearl(thanks to the help of Choonster)

 

I'd like to expand on it a bit more, however. This is my class file for the item right now:

package bloopers.trinkets.items;

import javax.annotation.Nullable;

import net.minecraft.command.ICommandSender;
import net.minecraft.creativetab.CreativeTabs;
import net.minecraft.enchantment.EnchantmentHelper;
import net.minecraft.entity.Entity;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.entity.item.EntityEnderPearl;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.entity.projectile.EntityArrow;
import net.minecraft.entity.projectile.EntityTippedArrow;
import net.minecraft.init.Enchantments;
import net.minecraft.init.Items;
import net.minecraft.init.SoundEvents;
import net.minecraft.item.EnumAction;
import net.minecraft.item.Item;
import net.minecraft.item.ItemArrow;
import net.minecraft.item.ItemEnderPearl;
import net.minecraft.item.ItemStack;
import net.minecraft.stats.StatList;
import net.minecraft.util.ActionResult;
import net.minecraft.util.EnumActionResult;
import net.minecraft.util.EnumHand;
import net.minecraft.util.SoundCategory;
import net.minecraft.util.math.BlockPos;
import net.minecraft.world.World;

public class ItemEnderRifle extends Item
{
    public ItemEnderRifle()
    {
        this.maxStackSize = 1;
        this.setMaxDamage(32);
        this.setCreativeTab(CreativeTabs.MISC);
    }

    
    @Override
    public EnumAction getItemUseAction(ItemStack stack)
    {
        return EnumAction.BOW;
    }
    
    
    /**
     * How long it takes to use or consume an item
     */
    @Override
    public int getMaxItemUseDuration(ItemStack stack)
    {
        return 5000;
    }
    
    @Override
    public ActionResult<ItemStack> onItemRightClick(ItemStack itemStackIn, World worldIn, EntityPlayer playerIn, EnumHand hand)
    {

            playerIn.setActiveHand(hand);
            return new ActionResult(EnumActionResult.SUCCESS, itemStackIn);
    }

    
    @Override
    public void onPlayerStoppedUsing(ItemStack stack, World worldIn, EntityLivingBase entityLiving, int timeLeft)
    {
    	    	
    	
    	if (!worldIn.isRemote)
        {
            EntityEnderPearl entityenderpearl = new EntityEnderPearl(worldIn, entityLiving);
            entityenderpearl.setHeadingFromThrower(entityLiving, entityLiving.rotationPitch, entityLiving.rotationYaw, 0.0F, 1.5F, 1.0F);
            worldIn.spawnEntityInWorld(entityenderpearl);
            stack.damageItem(1, entityLiving);
        }   
    }
    

}

 

So, I want to be able to make it require ammo(an ender pearl) AND I want it to have different velocities depending on how much you charge up the item(it's meant to throw ender pearls extra far)

Any help is appreciated.

[coolAlias]

The ItemBow class' #onPlayerStoppedUsing method implementation shows you how to do all of those things - it's worth a read through and is pretty much copy-paste ready once you figure out what's going on.

[Bloopers]

The ItemBow class' #onPlayerStoppedUsing method implementation shows you how to do all of those things - it's worth a read through and is pretty much copy-paste ready once you figure out what's going on.

I've managed to make the item work only if an ender pearl is in the inventory now. I can't figure out how to consume an ender pearl from the inventory and I also cannot figure out how to do the velocity(it seems like ender pearls have a lot less parameters than arrows)

 

[coolAlias]

You should see something like this in the ItemBow class (at least in 1.8.0 and earlier):

if (!player.capabilities.isCreativeMode) {
   player.inventory.consumeInventoryItem(Items.arrow);
}

That's one way you can consume an item.

 

As for the entity, you should make a custom entity rather than trying to use the vanilla ender pearl entity - that way you can make it do whatever you want.

 

[Draco18s]

I think that method got removed in 1.9, but if you look at the bow you should be able to find the replacement code (its just a loop over the inventory looking for the right item).