Java Code Examples for net.minecraft.enchantment.EnchantmentHelper#getEnchantmentLevel()

private int findArmorSlot(EntityEquipmentSlot type) {
    int slot = -1;
    float damage = 0;

    for (int i = 9; i < 45; i++) {
        final ItemStack s = Minecraft.getMinecraft().player.inventoryContainer.getSlot(i).getStack();
        if (s != null && s.getItem() != Items.AIR) {

            if (s.getItem() instanceof ItemArmor) {
                final ItemArmor armor = (ItemArmor) s.getItem();
                if (armor.armorType == type) {
                    final float currentDamage = (armor.damageReduceAmount + EnchantmentHelper.getEnchantmentLevel(Enchantments.PROTECTION, s));

                    final boolean cursed = this.curse.getValue() ? (EnchantmentHelper.hasBindingCurse(s)) : false;

                    if (currentDamage > damage && !cursed) {
                        damage = currentDamage;
                        slot = i;
                    }
                }
            }
        }
    }

    return slot;
}
 

@SubscribeEvent
public static void onAttackEntity(AttackEntityEvent event) {
	if (event.getTarget().canBeAttackedWithItem() && !event.getTarget().hitByEntity(event.getEntity()) && event.getTarget() instanceof EntityLivingBase && event.getTarget().hurtResistantTime <= 0) {
		EntityLivingBase attacker = event.getEntityLiving();
		EntityLivingBase target = (EntityLivingBase) event.getTarget();

		if (attacker.getHeldItemMainhand() == ItemStack.EMPTY)
			return;
		if (attacker.getHeldItemMainhand().getItem() != ModItems.UNICORN_DAGGER)
			return;

		float damage = 1 + EnchantmentHelper.getEnchantmentLevel(Enchantments.KNOCKBACK, attacker.getHeldItemMainhand());
		float attackCD = attacker instanceof EntityPlayer ? ((EntityPlayer) attacker).getCooledAttackStrength(0.5F) : 1;
		damage *= (0.2f + attackCD * attackCD * 0.8f);

		target.attackEntityFrom(DamageSource.causeIndirectMagicDamage(attacker, null), damage);
		target.hurtResistantTime = 0;
	}
}
 

public static void onLivingUpdate(EntityLivingBase entity) {
	if (entity.worldObj.isRemote)
		return;
	if (!EtFuturum.enableFrostWalker)
		return;

	ItemStack boots = entity.getEquipmentInSlot(1);
	int level = 0;
	if ((level = EnchantmentHelper.getEnchantmentLevel(frostWalker.effectId, boots)) > 0)
		if (entity.onGround) {
			int x = (int) entity.posX;
			int y = (int) entity.posY;
			int z = (int) entity.posZ;

			int radius = 1 + level;

			for (int i = -radius; i <= radius; i++)
				for (int j = -radius; j <= radius; j++) {
					Block block = entity.worldObj.getBlock(x + i, y - 1, z + j);
					if (block == Blocks.water || block == Blocks.flowing_water)
						entity.worldObj.setBlock(x + i, y - 1, z + j, ModBlocks.frosted_ice);
				}
		}
}
 

private int getToolHotbar(BlockPos pos) {
    int index = -1;

    float speed = 1.0f;

    for (int i = 0; i <= 9; i++) {
        final ItemStack stack = Minecraft.getMinecraft().player.inventory.getStackInSlot(i);
        if (stack != null && stack != ItemStack.EMPTY) {
            final float digSpeed = EnchantmentHelper.getEnchantmentLevel(Enchantments.EFFICIENCY, stack);
            final float destroySpeed = stack.getDestroySpeed(Minecraft.getMinecraft().world.getBlockState(pos));

            if ((digSpeed + destroySpeed) > speed) {
                speed = (digSpeed + destroySpeed);
                index = i;
            }
        }
    }

    return index;
}
 

protected void handleNormalDrops(World world, EntityPlayer player, BlockPos pos, IBlockState state, TileEntity te, @Nonnull ItemStack stack) {
	harvesters.set(player);
	final int fortune = EnchantmentHelper.getEnchantmentLevel(Enchantments.FORTUNE, stack);

	boolean addNormalDrops = true;

	if (te instanceof ICustomHarvestDrops) {
		final ICustomHarvestDrops dropper = (ICustomHarvestDrops)te;
		final List<ItemStack> drops = Lists.newArrayList();
		dropper.addHarvestDrops(player, drops, state, fortune, false);

		ForgeEventFactory.fireBlockHarvesting(drops, world, pos, state, fortune, 1.0f, false, player);
		for (ItemStack drop : drops)
			spawnAsEntity(world, pos, drop);

		addNormalDrops = !dropper.suppressBlockHarvestDrops();
	}

	if (addNormalDrops)
		dropBlockAsItem(world, pos, state, fortune);

	harvesters.set(null);
}
 

@Override
public void harvestBlock(World worldIn, EntityPlayer player, BlockPos pos, IBlockState state, @Nullable TileEntity te, @Nullable ItemStack stack)
{
    player.addStat(StatList.getBlockStats(this), 1);
    player.addExhaustion(0.025F);

    if (this.canSilkHarvest(worldIn, pos, state, player) && EnchantmentHelper.getEnchantmentLevel(Enchantments.SILK_TOUCH, stack) > 0)
    {
        this.dropYuba(worldIn, pos, state);
    }
    else
    {
        if (stack != null && OreDictionary.containsMatch(false, OreDictionary.getOres("stickWood"), new ItemStack(Items.STICK)))
        {
            this.dropYuba(worldIn, pos, state);
        }
    }
}
 

@SubscribeEvent
public static void addInformation(ItemTooltipEvent ev)
{
    if (!ConfigManager.SERVER.enableScraping.get() && EnchantmentHelper.getEnchantmentLevel(SurvivalistMod.SCRAPING.get(), ev.getItemStack()) > 0)
    {
        List<ITextComponent> list = ev.getToolTip();
        /*int lastScraping = -1;
        for (int i = 0; i < list.size(); i++)
        {
            if (list.get(i).getFormattedText().startsWith(I18n.format("enchantment.survivalist.scraping")))
            {
                lastScraping = i;
            }
        }
        if (lastScraping >= 0)
        {
            list.add(lastScraping + 1, "" + TextFormatting.DARK_GRAY + TextFormatting.ITALIC + I18n.format("tooltip.survivalist.scraping.disabled"));
        }*/
        list.add(new TranslationTextComponent("tooltip.survivalist.scraping.disabled").func_240701_a_(TextFormatting.DARK_GRAY, TextFormatting.ITALIC));
    }
}
 

public int calcInstability(ItemStack recipeInput) {
	int i = 0;
	Map map1 = EnchantmentHelper.getEnchantments(recipeInput);
	Iterator iterator = map1.keySet().iterator();
       while (iterator.hasNext())
       {
       	int j1 = ((Integer)iterator.next()).intValue();
       	i += EnchantmentHelper.getEnchantmentLevel(j1, recipeInput);
       }
	return (i/2) + instability;
}
 

@Override
public boolean onBlockDestroyed(ItemStack stack, World world, Block block, int x, int y, int z, EntityLivingBase player) {
    if(EnchantmentHelper.getEnchantmentLevel(DarkEnchantments.impact.effectId, stack) <= 0)
        return super.onBlockDestroyed(stack, world, block, x, y, z, player);
    if(!player.worldObj.isRemote) {
        int meta = world.getBlockMetadata(x, y, z);
        if(ForgeHooks.isToolEffective(stack, block, meta)) {
            for(int aa = -1; aa <= 1; ++aa) {
                for(int bb = -1; bb <= 1; ++bb) {
                    int xx = 0;
                    int yy = 0;
                    int zz = 0;
                    if(this.side <= 1) {
                        xx = aa;
                        zz = bb;
                    } else if(this.side <= 3) {
                        xx = aa;
                        yy = bb;
                    } else {
                        zz = aa;
                        yy = bb;
                    }

                    if(!(player instanceof EntityPlayer) || world.canMineBlock((EntityPlayer)player, x + xx, y + yy, z + zz)) {
                        Block bl = world.getBlock(x + xx, y + yy, z + zz);
                        meta = world.getBlockMetadata(x + xx, y + yy, z + zz);
                        if(bl.getBlockHardness(world, x + xx, y + yy, z + zz) >= 0.0F && ForgeHooks.isToolEffective(stack, bl, meta)) {
                            stack.damageItem(1, player);
                            BlockUtils.harvestBlock(world, (EntityPlayer)player, x + xx, y + yy, z + zz, true, 2);
                        }
                    }
                }
            }
        }
        else
            return super.onBlockDestroyed(stack, world, block, x, y, z, player);
    }

    return super.onBlockDestroyed(stack, world, block, x, y, z, player);
}
 

private void onItemBroken(PlayerEntity player, ItemStack stack)
{
    int scrappingLevel = EnchantmentHelper.getEnchantmentLevel(SurvivalistMod.SCRAPING.get(), stack);

    if (player.getClass().getName().equals("com.rwtema.extrautils2.fakeplayer.XUFakePlayer"))
        return;

    boolean fortune = rnd.nextDouble() > 0.9 / (1 + scrappingLevel);

    ItemStack ret = null;

    for (Triple<ItemStack, ItemStack, ItemStack> scraping : scrapingRegistry)
    {
        ItemStack source = scraping.getLeft();

        if (source.getItem() != stack.getItem())
            continue;

        ItemStack good = scraping.getMiddle();
        ItemStack bad = scraping.getRight();

        ret = fortune ? good.copy() : bad.copy();

        break;
    }

    if (ret != null)
    {
        SurvivalistMod.LOGGER.debug("Item broke (" + stack + ") and the player got " + ret + " in return!");

        SurvivalistMod.channel.sendTo(new ScrapingMessage(stack, ret), ((ServerPlayerEntity) player).connection.netManager, NetworkDirection.PLAY_TO_CLIENT);

        ItemHandlerHelper.giveItemToPlayer(player, ret);
    }
}
 

@Override
public void onPlayerStoppedUsing(ItemStack stack, World worldIn, EntityLivingBase entityLiving, int timeLeft) {
    int k = EnchantmentHelper.getEnchantmentLevel(Enchantments.SWEEPING, stack);

    if (k > 0) {
        //big sweep!!!
        entityLiving.swingArm(entityLiving.getActiveHand());

        float f = (float) entityLiving.getEntityAttribute(SharedMonsterAttributes.ATTACK_DAMAGE).getAttributeValue();
        f += EnchantmentHelper.getModifierForCreature(stack, entityLiving.getCreatureAttribute()) / 1.5F;

        float f3 = EnchantmentHelper.getSweepingDamageRatio(entityLiving) * f;

        float sweepingRatio = EnchantmentHelper.getSweepingDamageRatio(entityLiving);

        for (Entity entitylivingbase : worldIn.getEntitiesWithinAABB(Entity.class, entityLiving.getEntityBoundingBox().grow(1.4D + sweepingRatio * 1.2D, 0.3D + sweepingRatio * 0.15D, 1.4D + sweepingRatio * 1.2D))) {
            if (entitylivingbase != entityLiving && !entityLiving.isOnSameTeam(entitylivingbase)) {
                if (entitylivingbase instanceof EntityLivingBase) {
                    if (entitylivingbase instanceof EntityPlayer && ((EntityPlayer) entitylivingbase).isActiveItemStackBlocking()) {
                        //disable shield
                        ((EntityPlayer) entitylivingbase).disableShield(false);
                    }
                    ((EntityLivingBase) entitylivingbase).knockBack(entityLiving, 0.4F + 0.1F * EnchantmentHelper.getSweepingDamageRatio(entityLiving), MathHelper.sin(entityLiving.rotationYaw * 0.017453292F), (-MathHelper.cos(entityLiving.rotationYaw * 0.017453292F)));
                    entitylivingbase.attackEntityFrom(DamageSource.causePlayerDamage((EntityPlayer) entityLiving), f3);
                }

                if (entitylivingbase instanceof MultiPartEntityPart) {
                    entitylivingbase.attackEntityFrom(DamageSource.causePlayerDamage((EntityPlayer) entityLiving), f3);
                }
            }
        }

        worldIn.playSound(null, entityLiving.posX, entityLiving.posY, entityLiving.posZ, SoundEvents.ENTITY_PLAYER_ATTACK_SWEEP, entityLiving.getSoundCategory(), 1.0F, 1.0F);

        if (worldIn instanceof WorldServer) {
            double d0 = (-MathHelper.sin(entityLiving.rotationYaw * 0.017453292F));
            double d1 = MathHelper.cos(entityLiving.rotationYaw * 0.017453292F);
            ((WorldServer) worldIn).spawnParticle(EnumParticleTypes.SWEEP_ATTACK, entityLiving.posX + d0, entityLiving.posY + entityLiving.height * 0.5D, entityLiving.posZ + d1, 0, d0, 0.0D, d1, 0.0D);
        }

        stack.damageItem(2, entityLiving);

        ((EntityPlayer) entityLiving).getCooldownTracker().setCooldown(this, 16);
    }

}
 

public int calcXP(ItemStack recipeInput) {
	return recipeXP * (1+EnchantmentHelper.getEnchantmentLevel(enchantment.effectId, recipeInput));
}
 

@Override
public boolean removedByPlayer(IBlockState state, World world, BlockPos pos, EntityPlayer player, boolean willHarvest)
{
	if(world.isRemote)
		return true;

	//get our item parameters
	ItemStack stack = player.getHeldItemMainhand();
	int fortune = EnchantmentHelper.getEnchantmentLevel(Enchantments.FORTUNE, stack);
	int maxCut = 0;
	if(stack.getItem() instanceof ItemAxe)
	{
		maxCut = ((ItemAxe)stack.getItem()).maxTreeSize;
	}
	else return false;

	//create the map of our tree
	BlockPosList tree = BlockLogNatural.getTreeForCut(world, pos);
	int count = tree.size();

	//if the tree has too many blocks then prevent chopping
	if(count > maxCut)
	{
		player.sendMessage(new TextComponentTranslation(Core.translate("gui.axe.treetoobig")));
		return false;
	}
	else if(count > stack.getMaxDamage() - stack.getItemDamage())
	{
		player.sendMessage(new TextComponentTranslation(Core.translate("gui.axe.needsrepair")));
		return false;
	}
	else
	{
		for(BlockPos p : tree)
		{
			IBlockState s = world.getBlockState(p);
			this.onBlockHarvested(world, pos, s, player);
			world.setBlockToAir(p);
			s.getBlock().dropBlockAsItem(world, p, s, fortune);
		}
	}
	stack.damageItem(count-1, player);

	return true;
}
 

public int getWarp(ItemStack itemstack, EntityPlayer player) {
    if(EnchantmentHelper.getEnchantmentLevel(DarkEnchantments.voidtouched.effectId, itemstack) > 0)
        return 1;
    else
        return 0;
}
 

private boolean addToolDamage(ItemStack stack, int amount, EntityLivingBase living1, EntityLivingBase living2)
{
    //System.out.println("addToolDamage(): living1: " + living1 + " living2: " + living2 + " remote: " + living2.worldObj.isRemote);
    if (this.isToolBroken(stack))
    {
        return false;
    }

    if (amount > 0)
    {
        int unbreakingLevel = EnchantmentHelper.getEnchantmentLevel(Enchantment.getEnchantmentByLocation("unbreaking"), stack);
        int amountNegated = 0;

        for (int i = 0; unbreakingLevel > 0 && i < amount; i++)
        {
            if (itemRand.nextInt(amount + 1) > 0)
            {
                amountNegated++;
            }
        }

        amount -= amountNegated;

        if (amount <= 0)
        {
            return false;
        }
    }

    int damage = this.getDamage(stack);
    damage = Math.min(damage + amount, this.material.getMaxUses());
    this.setDamage(stack, damage);

    // Tool just broke
    if (damage == this.material.getMaxUses())
    {
        living1.renderBrokenItemStack(stack);
    }

    return true;
}
 

@Override
public boolean removedByPlayer(IBlockState state, World world, BlockPos pos, EntityPlayer player, boolean willHarvest)
{
	if(world.isRemote)
		return true;

	//get our item parameters
	ItemStack stack = player.getHeldItemMainhand();
	int fortune = EnchantmentHelper.getEnchantmentLevel(Enchantments.FORTUNE, stack);
	int maxCut = 0;
	if(stack.getItem() instanceof ItemAxe)
	{
		maxCut = ((ItemAxe)stack.getItem()).maxTreeSize;
	}
	else return false;

	//create the map of our tree
	BlockPosList tree = BlockLogNatural.getTreeForCut(world, pos);
	int count = tree.size();

	//if the tree has too many blocks then prevent chopping
	if(count > maxCut)
	{
		player.sendMessage(new TextComponentTranslation(Core.translate("gui.axe.treetoobig")));
		return false;
	}
	else if(count > stack.getMaxDamage() - stack.getItemDamage())
	{
		player.sendMessage(new TextComponentTranslation(Core.translate("gui.axe.needsrepair")));
		return false;
	}
	else
	{
		for(BlockPos p : tree)
		{
			IBlockState s = world.getBlockState(p);
			this.onBlockHarvested(world, pos, s, player);
			world.setBlockToAir(p);
			s.getBlock().dropBlockAsItem(world, p, s, fortune);
		}
	}
	stack.damageItem(count-1, player);

	return true;
}
 

/**
     * Used to check if a recipe matches current crafting inventory
     * @param player 
     */
	public boolean matches(ArrayList<ItemStack> input, ItemStack central, World world, EntityPlayer player) {
		if (research.length()>0 && !ThaumcraftApiHelper.isResearchComplete(player.getCommandSenderName(), research)) {
    		return false;
    	}
		
		if (!enchantment.canApply(central) || !central.getItem().isItemTool(central)) {
			return false;
		}
				
		Map map1 = EnchantmentHelper.getEnchantments(central);
		Iterator iterator = map1.keySet().iterator();
        while (iterator.hasNext())
        {
        	int j1 = ((Integer)iterator.next()).intValue();
            Enchantment ench = Enchantment.enchantmentsList[j1];
            if (j1 == enchantment.effectId &&
            		EnchantmentHelper.getEnchantmentLevel(j1, central)>=ench.getMaxLevel())
            	return false;
            if (enchantment.effectId != ench.effectId && 
            	(!enchantment.canApplyTogether(ench) ||
            	!ench.canApplyTogether(enchantment))) {
            	return false;
            }
        }
		
		ItemStack i2 = null;
		
		ArrayList<ItemStack> ii = new ArrayList<ItemStack>();
		for (ItemStack is:input) {
			ii.add(is.copy());
		}
		
		for (ItemStack comp:components) {
			boolean b=false;
			for (int a=0;a<ii.size();a++) {
				 i2 = ii.get(a).copy();
				if (comp.getItemDamage()==OreDictionary.WILDCARD_VALUE) {
					i2.setItemDamage(OreDictionary.WILDCARD_VALUE);
				}
				if (areItemStacksEqual(i2, comp,true)) {
					ii.remove(a);
					b=true;
					break;
				}
			}
			if (!b) return false;
		}
//		System.out.println(ii.size());
		return ii.size()==0?true:false;
    }
 

private boolean addToolDamage(ItemStack stack, int amount, EntityLivingBase living1, EntityLivingBase living2)
{
    //System.out.println("addToolDamage(): living1: " + living1 + " living2: " + living2 + " remote: " + living2.worldObj.isRemote);
    if (this.isToolBroken(stack))
    {
        return false;
    }

    if (amount > 0)
    {
        int unbreakingLevel = EnchantmentHelper.getEnchantmentLevel(Enchantment.getEnchantmentByLocation("unbreaking"), stack);
        int amountNegated = 0;

        for (int i = 0; unbreakingLevel > 0 && i < amount; i++)
        {
            if (itemRand.nextInt(amount + 1) > 0)
            {
                amountNegated++;
            }
        }

        amount -= amountNegated;

        if (amount <= 0)
        {
            return false;
        }
    }

    int damage = this.getDamage(stack);
    damage = Math.min(damage + amount, this.material.getMaxUses());

    if (living1.getEntityWorld().isRemote == false)
    {
        this.setDamage(stack, damage);
    }

    // Tool just broke
    if (damage == this.material.getMaxUses())
    {
        //System.out.printf("tool broke @ %s\n", living1.getEntityWorld().isRemote ? "client" : "server");
        living1.renderBrokenItemStack(stack);
    }

    return true;
}