package net.minecraft.enchantment;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Random;
import net.minecraft.entity.Entity;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.entity.EnumCreatureAttribute;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.init.Items;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.nbt.NBTTagList;
import net.minecraft.util.DamageSource;
import net.minecraft.util.WeightedRandom;
public class EnchantmentHelper
{
/** Is the random seed of enchantment effects. */
private static final Random enchantmentRand = new Random();
/**
* Used to calculate the extra armor of enchantments on armors equipped on player.
*/
private static final EnchantmentHelper.ModifierDamage enchantmentModifierDamage = new EnchantmentHelper.ModifierDamage(null);
/**
* Used to calculate the (magic) extra damage done by enchantments on current equipped item of player.
*/
private static final EnchantmentHelper.ModifierLiving enchantmentModifierLiving = new EnchantmentHelper.ModifierLiving(null);
private static final EnchantmentHelper.HurtIterator field_151388_d = new EnchantmentHelper.HurtIterator(null);
private static final EnchantmentHelper.DamageIterator field_151389_e = new EnchantmentHelper.DamageIterator(null);
private static final String __OBFID = "CL_00000107";
/**
* Returns the level of enchantment on the ItemStack passed.
*/
public static int getEnchantmentLevel(int p_77506_0_, ItemStack p_77506_1_)
{
if (p_77506_1_ == null)
{
return 0;
}
else
{
NBTTagList var2 = p_77506_1_.getEnchantmentTagList();
if (var2 == null)
{
return 0;
}
else
{
for (int var3 = 0; var3 < var2.tagCount(); ++var3)
{
short var4 = var2.getCompoundTagAt(var3).getShort("id");
short var5 = var2.getCompoundTagAt(var3).getShort("lvl");
if (var4 == p_77506_0_)
{
return var5;
}
}
return 0;
}
}
}
/**
* Return the enchantments for the specified stack.
*/
public static Map getEnchantments(ItemStack p_82781_0_)
{
LinkedHashMap var1 = Maps.newLinkedHashMap();
NBTTagList var2 = p_82781_0_.getItem() == Items.enchanted_book ? Items.enchanted_book.func_92110_g(p_82781_0_) : p_82781_0_.getEnchantmentTagList();
if (var2 != null)
{
for (int var3 = 0; var3 < var2.tagCount(); ++var3)
{
short var4 = var2.getCompoundTagAt(var3).getShort("id");
short var5 = var2.getCompoundTagAt(var3).getShort("lvl");
var1.put(Integer.valueOf(var4), Integer.valueOf(var5));
}
}
return var1;
}
/**
* Set the enchantments for the specified stack.
*/
public static void setEnchantments(Map p_82782_0_, ItemStack p_82782_1_)
{
NBTTagList var2 = new NBTTagList();
Iterator var3 = p_82782_0_.keySet().iterator();
while (var3.hasNext())
{
int var4 = ((Integer)var3.next()).intValue();
Enchantment var5 = Enchantment.func_180306_c(var4);
if (var5 != null)
{
NBTTagCompound var6 = new NBTTagCompound();
var6.setShort("id", (short)var4);
var6.setShort("lvl", (short)((Integer)p_82782_0_.get(Integer.valueOf(var4))).intValue());
var2.appendTag(var6);
if (p_82782_1_.getItem() == Items.enchanted_book)
{
Items.enchanted_book.addEnchantment(p_82782_1_, new EnchantmentData(var5, ((Integer)p_82782_0_.get(Integer.valueOf(var4))).intValue()));
}
}
}
if (var2.tagCount() > 0)
{
if (p_82782_1_.getItem() != Items.enchanted_book)
{
p_82782_1_.setTagInfo("ench", var2);
}
}
else if (p_82782_1_.hasTagCompound())
{
p_82782_1_.getTagCompound().removeTag("ench");
}
}
/**
* Returns the biggest level of the enchantment on the array of ItemStack passed.
*/
public static int getMaxEnchantmentLevel(int p_77511_0_, ItemStack[] p_77511_1_)
{
if (p_77511_1_ == null)
{
return 0;
}
else
{
int var2 = 0;
ItemStack[] var3 = p_77511_1_;
int var4 = p_77511_1_.length;
for (int var5 = 0; var5 < var4; ++var5)
{
ItemStack var6 = var3[var5];
int var7 = getEnchantmentLevel(p_77511_0_, var6);
if (var7 > var2)
{
var2 = var7;
}
}
return var2;
}
}
/**
* Executes the enchantment modifier on the ItemStack passed.
*/
private static void applyEnchantmentModifier(EnchantmentHelper.IModifier p_77518_0_, ItemStack p_77518_1_)
{
if (p_77518_1_ != null)
{
NBTTagList var2 = p_77518_1_.getEnchantmentTagList();
if (var2 != null)
{
for (int var3 = 0; var3 < var2.tagCount(); ++var3)
{
short var4 = var2.getCompoundTagAt(var3).getShort("id");
short var5 = var2.getCompoundTagAt(var3).getShort("lvl");
if (Enchantment.func_180306_c(var4) != null)
{
p_77518_0_.calculateModifier(Enchantment.func_180306_c(var4), var5);
}
}
}
}
}
/**
* Executes the enchantment modifier on the array of ItemStack passed.
*/
private static void applyEnchantmentModifierArray(EnchantmentHelper.IModifier p_77516_0_, ItemStack[] p_77516_1_)
{
ItemStack[] var2 = p_77516_1_;
int var3 = p_77516_1_.length;
for (int var4 = 0; var4 < var3; ++var4)
{
ItemStack var5 = var2[var4];
applyEnchantmentModifier(p_77516_0_, var5);
}
}
/**
* Returns the modifier of protection enchantments on armors equipped on player.
*/
public static int getEnchantmentModifierDamage(ItemStack[] p_77508_0_, DamageSource p_77508_1_)
{
enchantmentModifierDamage.damageModifier = 0;
enchantmentModifierDamage.source = p_77508_1_;
applyEnchantmentModifierArray(enchantmentModifierDamage, p_77508_0_);
if (enchantmentModifierDamage.damageModifier > 25)
{
enchantmentModifierDamage.damageModifier = 25;
}
return (enchantmentModifierDamage.damageModifier + 1 >> 1) + enchantmentRand.nextInt((enchantmentModifierDamage.damageModifier >> 1) + 1);
}
public static float func_152377_a(ItemStack p_152377_0_, EnumCreatureAttribute p_152377_1_)
{
enchantmentModifierLiving.livingModifier = 0.0F;
enchantmentModifierLiving.entityLiving = p_152377_1_;
applyEnchantmentModifier(enchantmentModifierLiving, p_152377_0_);
return enchantmentModifierLiving.livingModifier;
}
public static void func_151384_a(EntityLivingBase p_151384_0_, Entity p_151384_1_)
{
field_151388_d.field_151363_b = p_151384_1_;
field_151388_d.field_151364_a = p_151384_0_;
if (p_151384_0_ != null)
{
applyEnchantmentModifierArray(field_151388_d, p_151384_0_.getInventory());
}
if (p_151384_1_ instanceof EntityPlayer)
{
applyEnchantmentModifier(field_151388_d, p_151384_0_.getHeldItem());
}
}
public static void func_151385_b(EntityLivingBase p_151385_0_, Entity p_151385_1_)
{
field_151389_e.field_151366_a = p_151385_0_;
field_151389_e.field_151365_b = p_151385_1_;
if (p_151385_0_ != null)
{
applyEnchantmentModifierArray(field_151389_e, p_151385_0_.getInventory());
}
if (p_151385_0_ instanceof EntityPlayer)
{
applyEnchantmentModifier(field_151389_e, p_151385_0_.getHeldItem());
}
}
/**
* Returns the 'Water Breathing' modifier of enchantments on player equipped armors.
*/
public static int getRespiration(EntityLivingBase p_77501_0_)
{
return getEnchantmentLevel(Enchantment.field_180313_o.effectId, p_77501_0_.getHeldItem());
}
public static int getFireAspectModifier(EntityLivingBase p_90036_0_)
{
return getEnchantmentLevel(Enchantment.fireAspect.effectId, p_90036_0_.getHeldItem());
}
public static int func_180319_a(Entity p_180319_0_)
{
return getMaxEnchantmentLevel(Enchantment.field_180317_h.effectId, p_180319_0_.getInventory());
}
public static int func_180318_b(Entity p_180318_0_)
{
return getMaxEnchantmentLevel(Enchantment.field_180316_k.effectId, p_180318_0_.getInventory());
}
/**
* Return the extra efficiency of tools based on enchantments on equipped player item.
*/
public static int getEfficiencyModifier(EntityLivingBase p_77509_0_)
{
return getEnchantmentLevel(Enchantment.efficiency.effectId, p_77509_0_.getHeldItem());
}
/**
* Returns the silk touch status of enchantments on current equipped item of player.
*/
public static boolean getSilkTouchModifier(EntityLivingBase p_77502_0_)
{
return getEnchantmentLevel(Enchantment.silkTouch.effectId, p_77502_0_.getHeldItem()) > 0;
}
/**
* Returns the fortune enchantment modifier of the current equipped item of player.
*/
public static int getFortuneModifier(EntityLivingBase p_77517_0_)
{
return getEnchantmentLevel(Enchantment.fortune.effectId, p_77517_0_.getHeldItem());
}
public static int func_151386_g(EntityLivingBase p_151386_0_)
{
return getEnchantmentLevel(Enchantment.luckOfTheSea.effectId, p_151386_0_.getHeldItem());
}
public static int func_151387_h(EntityLivingBase p_151387_0_)
{
return getEnchantmentLevel(Enchantment.lure.effectId, p_151387_0_.getHeldItem());
}
/**
* Returns the looting enchantment modifier of the current equipped item of player.
*/
public static int getLootingModifier(EntityLivingBase p_77519_0_)
{
return getEnchantmentLevel(Enchantment.looting.effectId, p_77519_0_.getHeldItem());
}
/**
* Returns the aqua affinity status of enchantments on current equipped item of player.
*/
public static boolean getAquaAffinityModifier(EntityLivingBase p_77510_0_)
{
return getMaxEnchantmentLevel(Enchantment.aquaAffinity.effectId, p_77510_0_.getInventory()) > 0;
}
public static ItemStack func_92099_a(Enchantment p_92099_0_, EntityLivingBase p_92099_1_)
{
ItemStack[] var2 = p_92099_1_.getInventory();
int var3 = var2.length;
for (int var4 = 0; var4 < var3; ++var4)
{
ItemStack var5 = var2[var4];
if (var5 != null && getEnchantmentLevel(p_92099_0_.effectId, var5) > 0)
{
return var5;
}
}
return null;
}
/**
* Returns the enchantability of itemstack, it's uses a singular formula for each index (2nd parameter: 0, 1 and 2),
* cutting to the max enchantability power of the table (3rd parameter)
*/
public static int calcItemStackEnchantability(Random p_77514_0_, int p_77514_1_, int p_77514_2_, ItemStack p_77514_3_)
{
Item var4 = p_77514_3_.getItem();
int var5 = var4.getItemEnchantability();
if (var5 <= 0)
{
return 0;
}
else
{
if (p_77514_2_ > 15)
{
p_77514_2_ = 15;
}
int var6 = p_77514_0_.nextInt(8) + 1 + (p_77514_2_ >> 1) + p_77514_0_.nextInt(p_77514_2_ + 1);
return p_77514_1_ == 0 ? Math.max(var6 / 3, 1) : (p_77514_1_ == 1 ? var6 * 2 / 3 + 1 : Math.max(var6, p_77514_2_ * 2));
}
}
/**
* Adds a random enchantment to the specified item. Args: random, itemStack, enchantabilityLevel
*/
public static ItemStack addRandomEnchantment(Random p_77504_0_, ItemStack p_77504_1_, int p_77504_2_)
{
List var3 = buildEnchantmentList(p_77504_0_, p_77504_1_, p_77504_2_);
boolean var4 = p_77504_1_.getItem() == Items.book;
if (var4)
{
p_77504_1_.setItem(Items.enchanted_book);
}
if (var3 != null)
{
Iterator var5 = var3.iterator();
while (var5.hasNext())
{
EnchantmentData var6 = (EnchantmentData)var5.next();
if (var4)
{
Items.enchanted_book.addEnchantment(p_77504_1_, var6);
}
else
{
p_77504_1_.addEnchantment(var6.enchantmentobj, var6.enchantmentLevel);
}
}
}
return p_77504_1_;
}
/**
* Create a list of random EnchantmentData (enchantments) that can be added together to the ItemStack, the 3rd
* parameter is the total enchantability level.
*/
public static List buildEnchantmentList(Random p_77513_0_, ItemStack p_77513_1_, int p_77513_2_)
{
Item var3 = p_77513_1_.getItem();
int var4 = var3.getItemEnchantability();
if (var4 <= 0)
{
return null;
}
else
{
var4 /= 2;
var4 = 1 + p_77513_0_.nextInt((var4 >> 1) + 1) + p_77513_0_.nextInt((var4 >> 1) + 1);
int var5 = var4 + p_77513_2_;
float var6 = (p_77513_0_.nextFloat() + p_77513_0_.nextFloat() - 1.0F) * 0.15F;
int var7 = (int)((float)var5 * (1.0F + var6) + 0.5F);
if (var7 < 1)
{
var7 = 1;
}
ArrayList var8 = null;
Map var9 = mapEnchantmentData(var7, p_77513_1_);
if (var9 != null && !var9.isEmpty())
{
EnchantmentData var10 = (EnchantmentData)WeightedRandom.getRandomItem(p_77513_0_, var9.values());
if (var10 != null)
{
var8 = Lists.newArrayList();
var8.add(var10);
for (int var11 = var7; p_77513_0_.nextInt(50) <= var11; var11 >>= 1)
{
Iterator var12 = var9.keySet().iterator();
while (var12.hasNext())
{
Integer var13 = (Integer)var12.next();
boolean var14 = true;
Iterator var15 = var8.iterator();
while (true)
{
if (var15.hasNext())
{
EnchantmentData var16 = (EnchantmentData)var15.next();
if (var16.enchantmentobj.canApplyTogether(Enchantment.func_180306_c(var13.intValue())))
{
continue;
}
var14 = false;
}
if (!var14)
{
var12.remove();
}
break;
}
}
if (!var9.isEmpty())
{
EnchantmentData var17 = (EnchantmentData)WeightedRandom.getRandomItem(p_77513_0_, var9.values());
var8.add(var17);
}
}
}
}
return var8;
}
}
/**
* Creates a 'Map' of EnchantmentData (enchantments) possible to add on the ItemStack and the enchantability level
* passed.
*/
public static Map mapEnchantmentData(int p_77505_0_, ItemStack p_77505_1_)
{
Item var2 = p_77505_1_.getItem();
HashMap var3 = null;
boolean var4 = p_77505_1_.getItem() == Items.book;
Enchantment[] var5 = Enchantment.enchantmentsList;
int var6 = var5.length;
for (int var7 = 0; var7 < var6; ++var7)
{
Enchantment var8 = var5[var7];
if (var8 != null && (var8.type.canEnchantItem(var2) || var4))
{
for (int var9 = var8.getMinLevel(); var9 <= var8.getMaxLevel(); ++var9)
{
if (p_77505_0_ >= var8.getMinEnchantability(var9) && p_77505_0_ <= var8.getMaxEnchantability(var9))
{
if (var3 == null)
{
var3 = Maps.newHashMap();
}
var3.put(Integer.valueOf(var8.effectId), new EnchantmentData(var8, var9));
}
}
}
}
return var3;
}
static final class DamageIterator implements EnchantmentHelper.IModifier
{
public EntityLivingBase field_151366_a;
public Entity field_151365_b;
private static final String __OBFID = "CL_00000109";
private DamageIterator() {}
public void calculateModifier(Enchantment p_77493_1_, int p_77493_2_)
{
p_77493_1_.func_151368_a(this.field_151366_a, this.field_151365_b, p_77493_2_);
}
DamageIterator(Object p_i45359_1_)
{
this();
}
}
static final class HurtIterator implements EnchantmentHelper.IModifier
{
public EntityLivingBase field_151364_a;
public Entity field_151363_b;
private static final String __OBFID = "CL_00000110";
private HurtIterator() {}
public void calculateModifier(Enchantment p_77493_1_, int p_77493_2_)
{
p_77493_1_.func_151367_b(this.field_151364_a, this.field_151363_b, p_77493_2_);
}
HurtIterator(Object p_i45360_1_)
{
this();
}
}
interface IModifier
{
void calculateModifier(Enchantment p_77493_1_, int p_77493_2_);
}
static final class ModifierDamage implements EnchantmentHelper.IModifier
{
public int damageModifier;
public DamageSource source;
private static final String __OBFID = "CL_00000114";
private ModifierDamage() {}
public void calculateModifier(Enchantment p_77493_1_, int p_77493_2_)
{
this.damageModifier += p_77493_1_.calcModifierDamage(p_77493_2_, this.source);
}
ModifierDamage(Object p_i1929_1_)
{
this();
}
}
static final class ModifierLiving implements EnchantmentHelper.IModifier
{
public float livingModifier;
public EnumCreatureAttribute entityLiving;
private static final String __OBFID = "CL_00000112";
private ModifierLiving() {}
public void calculateModifier(Enchantment p_77493_1_, int p_77493_2_)
{
this.livingModifier += p_77493_1_.func_152376_a(p_77493_2_, this.entityLiving);
}
ModifierLiving(Object p_i1928_1_)
{
this();
}
}
}