CustomNPC-Plus/src/main/java/noppes/npcs/entity/EntityMagicProjectile.java

package noppes.npcs.entity;

import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.ItemStack;
import net.minecraft.util.StatCollector;
import net.minecraft.world.World;

public class EntityMagicProjectile extends EntityProjectile {
    private EntityPlayer player;
    private ItemStack equiped;

    public EntityMagicProjectile(World par1World) {
        super(par1World);
    }

    public EntityMagicProjectile(World par1World,
                                 EntityPlayer player, ItemStack item, boolean isNPC) {
        super(par1World, player, item, isNPC);

        this.player = player;
        this.equiped = player.inventory.getCurrentItem();
    }

    @Override
    public void onUpdate() {
        if (!worldObj.isRemote && (player == null || player.inventory.getCurrentItem() != equiped))
            this.setDead();
        super.onUpdate();
    }

    @Override
    public String getCommandSenderName() {
        return StatCollector.translateToLocal("entity.throwableitem.name");
    }
}