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package net.minecraft.server;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Random;
public class EnchantmentManager {
private static final Random random = new Random();
private static final EnchantmentModifierProtection b = new EnchantmentModifierProtection((EmptyClass3) null);
private static final EnchantmentModifierDamage c = new EnchantmentModifierDamage((EmptyClass3) null);
public EnchantmentManager() {}
public static int getEnchantmentLevel(int i, ItemStack itemstack) { // CraftBukkit - priv to pub
if (itemstack == null) {
return 0;
} else {
NBTTagList nbttaglist = itemstack.getEnchantments();
if (nbttaglist == null) {
return 0;
} else {
for (int j = 0; j < nbttaglist.size(); ++j) {
short short1 = ((NBTTagCompound) nbttaglist.get(j)).getShort("id");
short short2 = ((NBTTagCompound) nbttaglist.get(j)).getShort("lvl");
if (short1 == i) {
return short2;
}
}
return 0;
}
}
}
private static int getEnchantmentLevel(int i, ItemStack[] aitemstack) {
int j = 0;
ItemStack[] aitemstack1 = aitemstack;
int k = aitemstack.length;
for (int l = 0; l < k; ++l) {
ItemStack itemstack = aitemstack1[l];
int i1 = getEnchantmentLevel(i, itemstack);
if (i1 > j) {
j = i1;
}
}
return j;
}
private static void a(EnchantmentModifier enchantmentmodifier, ItemStack itemstack) {
if (itemstack != null) {
NBTTagList nbttaglist = itemstack.getEnchantments();
if (nbttaglist != null) {
for (int i = 0; i < nbttaglist.size(); ++i) {
short short1 = ((NBTTagCompound) nbttaglist.get(i)).getShort("id");
short short2 = ((NBTTagCompound) nbttaglist.get(i)).getShort("lvl");
if (Enchantment.byId[short1] != null) {
enchantmentmodifier.a(Enchantment.byId[short1], short2);
}
}
}
}
}
private static void a(EnchantmentModifier enchantmentmodifier, ItemStack[] aitemstack) {
ItemStack[] aitemstack1 = aitemstack;
int i = aitemstack.length;
for (int j = 0; j < i; ++j) {
ItemStack itemstack = aitemstack1[j];
a(enchantmentmodifier, itemstack);
}
}
public static int a(PlayerInventory playerinventory, DamageSource damagesource) {
b.a = 0;
b.b = damagesource;
a((EnchantmentModifier) b, playerinventory.armor);
if (b.a > 25) {
b.a = 25;
}
return (b.a + 1 >> 1) + random.nextInt((b.a >> 1) + 1);
}
public static int a(PlayerInventory playerinventory, EntityLiving entityliving) {
c.a = 0;
c.b = entityliving;
a((EnchantmentModifier) c, playerinventory.getItemInHand());
return c.a > 0 ? 1 + random.nextInt(c.a) : 0;
}
public static int getKnockbackEnchantmentLevel(PlayerInventory playerinventory, EntityLiving entityliving) {
return getEnchantmentLevel(Enchantment.KNOCKBACK.id, playerinventory.getItemInHand());
}
public static int getFireAspectEnchantmentLevel(PlayerInventory playerinventory, EntityLiving entityliving) {
return getEnchantmentLevel(Enchantment.FIRE_ASPECT.id, playerinventory.getItemInHand());
}
public static int getOxygenEnchantmentLevel(PlayerInventory playerinventory) {
return getEnchantmentLevel(Enchantment.OXYGEN.id, playerinventory.armor);
}
public static int getDigSpeedEnchantmentLevel(PlayerInventory playerinventory) {
return getEnchantmentLevel(Enchantment.DIG_SPEED.id, playerinventory.getItemInHand());
}
public static int getDurabilityEnchantmentLevel(PlayerInventory playerinventory) {
return getEnchantmentLevel(Enchantment.DURABILITY.id, playerinventory.getItemInHand());
}
public static boolean hasSilkTouchEnchantment(PlayerInventory playerinventory) {
return getEnchantmentLevel(Enchantment.SILK_TOUCH.id, playerinventory.getItemInHand()) > 0;
}
public static int getBonusBlockLootEnchantmentLevel(PlayerInventory playerinventory) {
return getEnchantmentLevel(Enchantment.LOOT_BONUS_BLOCKS.id, playerinventory.getItemInHand());
}
public static int getBonusMonsterLootEnchantmentLevel(PlayerInventory playerinventory) {
return getEnchantmentLevel(Enchantment.LOOT_BONUS_MOBS.id, playerinventory.getItemInHand());
}
public static boolean hasWaterWorkerEnchantment(PlayerInventory playerinventory) {
return getEnchantmentLevel(Enchantment.WATER_WORKER.id, playerinventory.armor) > 0;
}
public static int a(Random random, int i, int j, ItemStack itemstack) {
Item item = itemstack.getItem();
int k = item.c();
if (k <= 0) {
return 0;
} else {
if (j > 30) {
j = 30;
}
j = 1 + random.nextInt((j >> 1) + 1) + random.nextInt(j + 1);
int l = random.nextInt(5) + j;
return i == 0 ? (l >> 1) + 1 : (i == 1 ? l * 2 / 3 + 1 : l);
}
}
public static List a(Random random, ItemStack itemstack, int i) {
Item item = itemstack.getItem();
int j = item.c();
if (j <= 0) {
return null;
} else {
j = 1 + random.nextInt((j >> 1) + 1) + random.nextInt((j >> 1) + 1);
int k = j + i;
float f = (random.nextFloat() + random.nextFloat() - 1.0F) * 0.25F;
int l = (int) ((float) k * (1.0F + f) + 0.5F);
ArrayList arraylist = null;
Map map = a(l, itemstack);
if (map != null && !map.isEmpty()) {
EnchantmentInstance enchantmentinstance = (EnchantmentInstance) WeightedRandom.a(random, map.values());
if (enchantmentinstance != null) {
arraylist = new ArrayList();
arraylist.add(enchantmentinstance);
for (int i1 = l >> 1; random.nextInt(50) <= i1; i1 >>= 1) {
Iterator iterator = map.keySet().iterator();
while (iterator.hasNext()) {
Integer integer = (Integer) iterator.next();
boolean flag = true;
Iterator iterator1 = arraylist.iterator();
while (true) {
if (iterator1.hasNext()) {
EnchantmentInstance enchantmentinstance1 = (EnchantmentInstance) iterator1.next();
if (enchantmentinstance1.a.a(Enchantment.byId[integer.intValue()])) {
continue;
}
flag = false;
}
if (!flag) {
iterator.remove();
}
break;
}
}
if (!map.isEmpty()) {
EnchantmentInstance enchantmentinstance2 = (EnchantmentInstance) WeightedRandom.a(random, map.values());
arraylist.add(enchantmentinstance2);
}
}
}
}
return arraylist;
}
}
public static Map a(int i, ItemStack itemstack) {
Item item = itemstack.getItem();
HashMap hashmap = null;
Enchantment[] aenchantment = Enchantment.byId;
int j = aenchantment.length;
for (int k = 0; k < j; ++k) {
Enchantment enchantment = aenchantment[k];
if (enchantment != null && enchantment.slot.canEnchant(item)) {
for (int l = enchantment.getStartLevel(); l <= enchantment.getMaxLevel(); ++l) {
if (i >= enchantment.a(l) && i <= enchantment.b(l)) {
if (hashmap == null) {
hashmap = new HashMap();
}
hashmap.put(Integer.valueOf(enchantment.id), new EnchantmentInstance(enchantment, l));
}
}
}
}
return hashmap;
}
}
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