ItemUselessBow.java

package xjon.jum.items;

import javax.annotation.Nullable;

import net.minecraft.enchantment.EnchantmentHelper;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.init.Enchantments;
import net.minecraft.init.Items;
import net.minecraft.init.SoundEvents;
import net.minecraft.item.EnumAction;
import net.minecraft.item.IItemPropertyGetter;
import net.minecraft.item.ItemArrow;
import net.minecraft.item.ItemBow;
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.ResourceLocation;
import net.minecraft.util.SoundCategory;
import net.minecraft.world.World;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;
import xjon.jum.entity.projectile.EntityUselessArrow;
import xjon.jum.init.UselessItems;
import xjon.jum.util.Log;

public class ItemUselessBow extends ItemBow
{

	public ItemUselessBow() {
		this.maxStackSize = 1;
		this.setMaxDamage(764);
		this.setFull3D();
	       this.addPropertyOverride(new ResourceLocation("pull"), new IItemPropertyGetter()
	        {
	            @SideOnly(Side.CLIENT)
	            public float apply(ItemStack stack, @Nullable World worldIn, @Nullable EntityLivingBase entityIn)
	            {
	                if (entityIn == null)
	                {
	                    return 0.0F;
	                }
	                else
	                {
	                    ItemStack itemstack = entityIn.getActiveItemStack();
	                    return itemstack != null && itemstack.getItem() == UselessItems.useless_bow ? (float)(stack.getMaxItemUseDuration() - entityIn.getItemInUseCount()) / 20.0F : 0.0F;
	                }
	            }
	        });
	        this.addPropertyOverride(new ResourceLocation("pulling"), new IItemPropertyGetter()
	        {
	            @SideOnly(Side.CLIENT)
	            public float apply(ItemStack stack, @Nullable World worldIn, @Nullable EntityLivingBase entityIn)
	            {
	                return entityIn != null && entityIn.isHandActive() && entityIn.getActiveItemStack() == stack ? 1.0F : 0.0F;
	            }
	        });
	}

    private ItemStack findAmmo(EntityPlayer player)
    {
        if (this.isArrow(player.getHeldItem(EnumHand.OFF_HAND)))
        {
            return player.getHeldItem(EnumHand.OFF_HAND);
        }
        else if (this.isArrow(player.getHeldItem(EnumHand.MAIN_HAND)))
        {
            return player.getHeldItem(EnumHand.MAIN_HAND);
        }
        else
        {
            for (int i = 0; i < player.inventory.getSizeInventory(); ++i)
            {
                ItemStack itemstack = player.inventory.getStackInSlot(i);

                if (this.isArrow(itemstack))
                {
                    return itemstack;
                }
            }

            return null;
        }
    }
    
    protected boolean isArrow(@Nullable ItemStack stack)
    {
        boolean b = stack != null && stack.getItem() instanceof ItemUselessArrow; 
        return b;
    }
    
	@Override
	public void onPlayerStoppedUsing(ItemStack stack, World worldIn, EntityLivingBase entityLiving, int timeLeft)
    {
		if (entityLiving instanceof EntityPlayer)
        {
            EntityPlayer entityplayer = (EntityPlayer)entityLiving;
            boolean flag = entityplayer.capabilities.isCreativeMode || EnchantmentHelper.getEnchantmentLevel(Enchantments.INFINITY, stack) > 0;
            ItemStack itemstack = this.findAmmo(entityplayer);

            int i = this.getMaxItemUseDuration(stack) - timeLeft;
            i = net.minecraftforge.event.ForgeEventFactory.onArrowLoose(stack, worldIn, (EntityPlayer)entityLiving, i, itemstack != null || flag);
            if (i < 0) return;

            if (itemstack != null || flag)
            {
                if (itemstack == null)
                {
                    itemstack = new ItemStack(UselessItems.useless_arrow);
                }

                float f = getArrowVelocity(i);

                if ((double)f >= 0.1D)
                {
                    boolean flag1 = entityplayer.capabilities.isCreativeMode || (itemstack.getItem() instanceof ItemUselessArrow ? ((ItemUselessArrow)itemstack.getItem()).isInfinite(itemstack, stack, entityplayer) : false);

                    if (!worldIn.isRemote)
                    {
                        ItemUselessArrow itemarrow = (ItemUselessArrow)((ItemUselessArrow)(itemstack.getItem() instanceof ItemUselessArrow ? itemstack.getItem() : UselessItems.useless_arrow));
                        EntityUselessArrow entityarrow = itemarrow.createArrow(worldIn, itemstack, entityplayer);
                        entityarrow.setAim(entityplayer, entityplayer.rotationPitch, entityplayer.rotationYaw, 0.0F, f * 3.0F, 1.0F);

                        if (f == 1.0F)
                        {
                            entityarrow.setIsCritical(true);
                        }

                        int j = EnchantmentHelper.getEnchantmentLevel(Enchantments.POWER, stack);

                        if (j > 0)
                        {
                            entityarrow.setDamage(entityarrow.getDamage() + (double)j * 0.5D + 0.5D);
                        }

                        int k = EnchantmentHelper.getEnchantmentLevel(Enchantments.PUNCH, stack);

                        if (k > 0)
                        {
                            entityarrow.setKnockbackStrength(k);
                        }

                        if (EnchantmentHelper.getEnchantmentLevel(Enchantments.FLAME, stack) > 0)
                        {
                            entityarrow.setFire(100);
                        }

                        stack.damageItem(1, entityplayer);

                        if (flag1)
                        {
                            entityarrow.pickupStatus = EntityUselessArrow.PickupStatus.CREATIVE_ONLY;
                        }

                        worldIn.spawnEntityInWorld(entityarrow);
                    }

                    worldIn.playSound((EntityPlayer)null, entityplayer.posX, entityplayer.posY, entityplayer.posZ, SoundEvents.ENTITY_ARROW_SHOOT, SoundCategory.NEUTRAL, 1.0F, 1.0F / (itemRand.nextFloat() * 0.4F + 1.2F) + f * 0.5F);

                    if (!flag1)
                    {
                        --itemstack.stackSize;

                        if (itemstack.stackSize == 0)
                        {
                            entityplayer.inventory.deleteStack(itemstack);
                        }
                    }

                    entityplayer.addStat(StatList.getObjectUseStats(this));
                }
            }
        }
    }

	@Override
	public int getItemEnchantability() {
		return 10;
	}
}