content: package net.minecraft.entity.monster;
  
  import net.minecraft.block.Block;
  import net.minecraft.entity.*;
  import net.minecraft.entity.ai.*;
  import net.minecraft.entity.ai.attributes.AttributeModifier;
  import net.minecraft.entity.ai.attributes.IAttribute;
  import net.minecraft.entity.ai.attributes.IAttributeInstance;
  import net.minecraft.entity.ai.attributes.RangedAttribute;
  import net.minecraft.entity.passive.EntityChicken;
  import net.minecraft.entity.passive.EntityVillager;
  import net.minecraft.entity.player.EntityPlayer;
  import net.minecraft.init.Blocks;
  import net.minecraft.init.Items;
  import net.minecraft.item.Item;
  import net.minecraft.item.ItemStack;
  import net.minecraft.nbt.NBTTagCompound;
  import net.minecraft.pathfinding.PathNavigateGround;
  import net.minecraft.potion.Potion;
  import net.minecraft.potion.PotionEffect;
  import net.minecraft.util.BlockPos;
  import net.minecraft.util.DamageSource;
  import net.minecraft.util.EntitySelectors;
  import net.minecraft.util.MathHelper;
  import net.minecraft.world.DifficultyInstance;
  import net.minecraft.world.EnumDifficulty;
  import net.minecraft.world.World;
  
  import java.util.Calendar;
  import java.util.List;
  import java.util.UUID;
  
  public class EntityZombie extends EntityMob {
      protected static final IAttribute reinforcementChance = (new RangedAttribute(null, "zombie.spawnReinforcements", 0.0D, 0.0D, 1.0D)).setDescription("Spawn Reinforcements Chance");
      private static final UUID babySpeedBoostUUID = UUID.fromString("B9766B59-9566-4402-BC1F-2EE2A276D836");
      private static final AttributeModifier babySpeedBoostModifier = new AttributeModifier(babySpeedBoostUUID, "Baby speed boost", 0.5D, 1);
      private final EntityAIBreakDoor breakDoor = new EntityAIBreakDoor(this);
      private int conversionTime;
      private boolean isBreakDoorsTaskSet = false;
      private float zombieWidth = -1.0F;
      private float zombieHeight;
  
      public EntityZombie(World worldIn) {
          super(worldIn);
          ((PathNavigateGround) this.getNavigator()).setBreakDoors(true);
          this.tasks.addTask(0, new EntityAISwimming(this));
          this.tasks.addTask(2, new EntityAIAttackOnCollide(this, EntityPlayer.class, 1.0D, false));
          this.tasks.addTask(5, new EntityAIMoveTowardsRestriction(this, 1.0D));
          this.tasks.addTask(7, new EntityAIWander(this, 1.0D));
          this.tasks.addTask(8, new EntityAIWatchClosest(this, EntityPlayer.class, 8.0F));
          this.tasks.addTask(8, new EntityAILookIdle(this));
          this.applyEntityAI();
          this.setSize(0.6F, 1.95F);
      }
  
      protected void applyEntityAI() {
          this.tasks.addTask(4, new EntityAIAttackOnCollide(this, EntityVillager.class, 1.0D, true));
          this.tasks.addTask(4, new EntityAIAttackOnCollide(this, EntityIronGolem.class, 1.0D, true));
          this.tasks.addTask(6, new EntityAIMoveThroughVillage(this, 1.0D, false));
          this.targetTasks.addTask(1, new EntityAIHurtByTarget(this, true, EntityPigZombie.class));
          this.targetTasks.addTask(2, new EntityAINearestAttackableTarget(this, EntityPlayer.class, true));
          this.targetTasks.addTask(2, new EntityAINearestAttackableTarget(this, EntityVillager.class, false));
          this.targetTasks.addTask(2, new EntityAINearestAttackableTarget(this, EntityIronGolem.class, true));
      }
  
      protected void applyEntityAttributes() {
          super.applyEntityAttributes();
          this.getEntityAttribute(SharedMonsterAttributes.followRange).setBaseValue(35.0D);
          this.getEntityAttribute(SharedMonsterAttributes.movementSpeed).setBaseValue(0.23000000417232513D);
          this.getEntityAttribute(SharedMonsterAttributes.attackDamage).setBaseValue(3.0D);
          this.getAttributeMap().registerAttribute(reinforcementChance).setBaseValue(this.rand.nextDouble() * 0.10000000149011612D);
      }
  
      protected void entityInit() {
          super.entityInit();
          this.getDataWatcher().addObject(12, Byte.valueOf((byte) 0));
          this.getDataWatcher().addObject(13, Byte.valueOf((byte) 0));
          this.getDataWatcher().addObject(14, Byte.valueOf((byte) 0));
      }
  
      public int getTotalArmorValue() {
          int i = super.getTotalArmorValue() + 2;
  
          if (i > 20) {
              i = 20;
          }
  
          return i;
      }
  
      public boolean isBreakDoorsTaskSet() {
          return this.isBreakDoorsTaskSet;
      }
  
      public void setBreakDoorsAItask(boolean par1) {
          if (this.isBreakDoorsTaskSet != par1) {
              this.isBreakDoorsTaskSet = par1;
  
              if (par1) {
                  this.tasks.addTask(1, this.breakDoor);
              } else {
                  this.tasks.removeTask(this.breakDoor);
              }
          }
      }
  
      public boolean isChild() {
          return this.getDataWatcher().getWatchableObjectByte(12) == 1;
      }
  
      protected int getExperiencePoints(EntityPlayer player) {
          if (this.isChild()) {
              this.experienceValue = (int) ((float) this.experienceValue * 2.5F);
          }
  
          return super.getExperiencePoints(player);
      }
  
      public void setChild(boolean childZombie) {
          this.getDataWatcher().updateObject(12, Byte.valueOf((byte) (childZombie ? 1 : 0)));
  
          if (this.worldObj != null && !this.worldObj.isRemote) {
              IAttributeInstance iattributeinstance = this.getEntityAttribute(SharedMonsterAttributes.movementSpeed);
              iattributeinstance.removeModifier(babySpeedBoostModifier);
  
              if (childZombie) {
                  iattributeinstance.applyModifier(babySpeedBoostModifier);
              }
          }
  
          this.setChildSize(childZombie);
      }
  
      public boolean isVillager() {
          return this.getDataWatcher().getWatchableObjectByte(13) == 1;
      }
  
      public void setVillager(boolean villager) {
          this.getDataWatcher().updateObject(13, Byte.valueOf((byte) (villager ? 1 : 0)));
      }
  
      public void onLivingUpdate() {
          if (this.worldObj.isDaytime() && !this.worldObj.isRemote && !this.isChild()) {
              float f = this.getBrightness(1.0F);
              BlockPos blockpos = new BlockPos(this.posX, (double) Math.round(this.posY), this.posZ);
  
              if (f > 0.5F && this.rand.nextFloat() * 30.0F < (f - 0.4F) * 2.0F && this.worldObj.canSeeSky(blockpos)) {
                  boolean flag = true;
                  ItemStack itemstack = this.getEquipmentInSlot(4);
  
                  if (itemstack != null) {
                      if (itemstack.isItemStackDamageable()) {
                          itemstack.setItemDamage(itemstack.getItemDamage() + this.rand.nextInt(2));
  
                          if (itemstack.getItemDamage() >= itemstack.getMaxDamage()) {
                              this.renderBrokenItemStack(itemstack);
                              this.setCurrentItemOrArmor(4, null);
                          }
                      }
  
                      flag = false;
                  }
  
                  if (flag) {
                      this.setFire(8);
                  }
              }
          }
  
          if (this.isRiding() && this.getAttackTarget() != null && this.ridingEntity instanceof EntityChicken) {
              ((EntityLiving) this.ridingEntity).getNavigator().setPath(this.getNavigator().getPath(), 1.5D);
          }
  
          super.onLivingUpdate();
      }
  
      public boolean attackEntityFrom(DamageSource source, float amount) {
          if (super.attackEntityFrom(source, amount)) {
              EntityLivingBase entitylivingbase = this.getAttackTarget();
  
              if (entitylivingbase == null && source.getEntity() instanceof EntityLivingBase) {
                  entitylivingbase = (EntityLivingBase) source.getEntity();
              }
  
              if (entitylivingbase != null && this.worldObj.getDifficulty() == EnumDifficulty.HARD && (double) this.rand.nextFloat() < this.getEntityAttribute(reinforcementChance).getAttributeValue()) {
                  int i = MathHelper.floor_double(this.posX);
                  int j = MathHelper.floor_double(this.posY);
                  int k = MathHelper.floor_double(this.posZ);
                  EntityZombie entityzombie = new EntityZombie(this.worldObj);
  
                  for (int l = 0; l < 50; ++l) {
                      int i1 = i + MathHelper.getRandomIntegerInRange(this.rand, 7, 40) * MathHelper.getRandomIntegerInRange(this.rand, -1, 1);
                      int j1 = j + MathHelper.getRandomIntegerInRange(this.rand, 7, 40) * MathHelper.getRandomIntegerInRange(this.rand, -1, 1);
                      int k1 = k + MathHelper.getRandomIntegerInRange(this.rand, 7, 40) * MathHelper.getRandomIntegerInRange(this.rand, -1, 1);
  
                      if (World.doesBlockHaveSolidTopSurface(this.worldObj, new BlockPos(i1, j1 - 1, k1)) && this.worldObj.getLightFromNeighbors(new BlockPos(i1, j1, k1)) < 10) {
                          entityzombie.setPosition(i1, j1, k1);
  
                          if (!this.worldObj.isAnyPlayerWithinRangeAt(i1, j1, k1, 7.0D) && this.worldObj.checkNoEntityCollision(entityzombie.getEntityBoundingBox(), entityzombie) && this.worldObj.getCollidingBoundingBoxes(entityzombie, entityzombie.getEntityBoundingBox()).isEmpty() && !this.worldObj.isAnyLiquid(entityzombie.getEntityBoundingBox())) {
                              this.worldObj.spawnEntityInWorld(entityzombie);
                              entityzombie.setAttackTarget(entitylivingbase);
                              entityzombie.onInitialSpawn(this.worldObj.getDifficultyForLocation(new BlockPos(entityzombie)), null);
                              this.getEntityAttribute(reinforcementChance).applyModifier(new AttributeModifier("Zombie reinforcement caller charge", -0.05000000074505806D, 0));
                              entityzombie.getEntityAttribute(reinforcementChance).applyModifier(new AttributeModifier("Zombie reinforcement callee charge", -0.05000000074505806D, 0));
                              break;
                          }
                      }
                  }
              }
  
              return true;
          } else {
              return false;
          }
      }
  
      public void onUpdate() {
          if (!this.worldObj.isRemote && this.isConverting()) {
              int i = this.getConversionTimeBoost();
              this.conversionTime -= i;
  
              if (this.conversionTime <= 0) {
                  this.convertToVillager();
              }
          }
  
          super.onUpdate();
      }
  
      public boolean attackEntityAsMob(Entity entityIn) {
          boolean flag = super.attackEntityAsMob(entityIn);
  
          if (flag) {
              int i = this.worldObj.getDifficulty().getDifficultyId();
  
              if (this.getHeldItem() == null && this.isBurning() && this.rand.nextFloat() < (float) i * 0.3F) {
                  entityIn.setFire(2 * i);
              }
          }
  
          return flag;
      }
  
      protected String getLivingSound() {
          return "mob.zombie.say";
      }
  
      protected String getHurtSound() {
          return "mob.zombie.hurt";
      }
  
      protected String getDeathSound() {
          return "mob.zombie.death";
      }
  
      protected void playStepSound(BlockPos pos, Block blockIn) {
          this.playSound("mob.zombie.step", 0.15F, 1.0F);
      }
  
      protected Item getDropItem() {
          return Items.rotten_flesh;
      }
  
      public EnumCreatureAttribute getCreatureAttribute() {
          return EnumCreatureAttribute.UNDEAD;
      }
  
      protected void addRandomDrop() {
          switch (this.rand.nextInt(3)) {
              case 0:
                  this.dropItem(Items.iron_ingot, 1);
                  break;
  
              case 1:
                  this.dropItem(Items.carrot, 1);
                  break;
  
              case 2:
                  this.dropItem(Items.potato, 1);
          }
      }
  
      protected void setEquipmentBasedOnDifficulty(DifficultyInstance difficulty) {
          super.setEquipmentBasedOnDifficulty(difficulty);
  
          if (this.rand.nextFloat() < (this.worldObj.getDifficulty() == EnumDifficulty.HARD ? 0.05F : 0.01F)) {
              int i = this.rand.nextInt(3);
  
              if (i == 0) {
                  this.setCurrentItemOrArmor(0, new ItemStack(Items.iron_sword));
              } else {
                  this.setCurrentItemOrArmor(0, new ItemStack(Items.iron_shovel));
              }
          }
      }
  
      public void writeEntityToNBT(NBTTagCompound tagCompound) {
          super.writeEntityToNBT(tagCompound);
  
          if (this.isChild()) {
              tagCompound.setBoolean("IsBaby", true);
          }
  
          if (this.isVillager()) {
              tagCompound.setBoolean("IsVillager", true);
          }
  
          tagCompound.setInteger("ConversionTime", this.isConverting() ? this.conversionTime : -1);
          tagCompound.setBoolean("CanBreakDoors", this.isBreakDoorsTaskSet());
      }
  
      public void readEntityFromNBT(NBTTagCompound tagCompund) {
          super.readEntityFromNBT(tagCompund);
  
          if (tagCompund.getBoolean("IsBaby")) {
              this.setChild(true);
          }
  
          if (tagCompund.getBoolean("IsVillager")) {
              this.setVillager(true);
          }
  
          if (tagCompund.hasKey("ConversionTime", 99) && tagCompund.getInteger("ConversionTime") > -1) {
              this.startConversion(tagCompund.getInteger("ConversionTime"));
          }
  
          this.setBreakDoorsAItask(tagCompund.getBoolean("CanBreakDoors"));
      }
  
      public void onKillEntity(EntityLivingBase entityLivingIn) {
          super.onKillEntity(entityLivingIn);
  
          if ((this.worldObj.getDifficulty() == EnumDifficulty.NORMAL || this.worldObj.getDifficulty() == EnumDifficulty.HARD) && entityLivingIn instanceof EntityVillager) {
              if (this.worldObj.getDifficulty() != EnumDifficulty.HARD && this.rand.nextBoolean()) {
                  return;
              }
  
              EntityLiving entityliving = (EntityLiving) entityLivingIn;
              EntityZombie entityzombie = new EntityZombie(this.worldObj);
              entityzombie.copyLocationAndAnglesFrom(entityLivingIn);
              this.worldObj.removeEntity(entityLivingIn);
              entityzombie.onInitialSpawn(this.worldObj.getDifficultyForLocation(new BlockPos(entityzombie)), null);
              entityzombie.setVillager(true);
  
              if (entityLivingIn.isChild()) {
                  entityzombie.setChild(true);
              }
  
              entityzombie.setNoAI(entityliving.isAIDisabled());
  
              if (entityliving.hasCustomName()) {
                  entityzombie.setCustomNameTag(entityliving.getCustomNameTag());
                  entityzombie.setAlwaysRenderNameTag(entityliving.getAlwaysRenderNameTag());
              }
  
              this.worldObj.spawnEntityInWorld(entityzombie);
              this.worldObj.playAuxSFXAtEntity(null, 1016, new BlockPos((int) this.posX, (int) this.posY, (int) this.posZ), 0);
          }
      }
  
      public float getEyeHeight() {
          float f = 1.74F;
  
          if (this.isChild()) {
              f = (float) ((double) f - 0.81D);
          }
  
          return f;
      }
  
      protected boolean func_175448_a(ItemStack stack) {
          return (stack.getItem() != Items.egg || !this.isChild() || !this.isRiding()) && super.func_175448_a(stack);
      }
  
      public IEntityLivingData onInitialSpawn(DifficultyInstance difficulty, IEntityLivingData livingdata) {
          livingdata = super.onInitialSpawn(difficulty, livingdata);
          float f = difficulty.getClampedAdditionalDifficulty();
          this.setCanPickUpLoot(this.rand.nextFloat() < 0.55F * f);
  
          if (livingdata == null) {
              livingdata = new EntityZombie.GroupData(this.worldObj.rand.nextFloat() < 0.05F, this.worldObj.rand.nextFloat() < 0.05F);
          }
  
          if (livingdata instanceof EntityZombie.GroupData) {
              EntityZombie.GroupData entityzombie$groupdata = (EntityZombie.GroupData) livingdata;
  
              if (entityzombie$groupdata.isVillager) {
                  this.setVillager(true);
              }
  
              if (entityzombie$groupdata.isChild) {
                  this.setChild(true);
  
                  if ((double) this.worldObj.rand.nextFloat() < 0.05D) {
                      List<EntityChicken> list = this.worldObj.getEntitiesWithinAABB(EntityChicken.class, this.getEntityBoundingBox().expand(5.0D, 3.0D, 5.0D), EntitySelectors.IS_STANDALONE);
  
                      if (!list.isEmpty()) {
                          EntityChicken entitychicken = list.get(0);
                          entitychicken.setChickenJockey(true);
                          this.mountEntity(entitychicken);
                      }
                  } else if ((double) this.worldObj.rand.nextFloat() < 0.05D) {
                      EntityChicken entitychicken1 = new EntityChicken(this.worldObj);
                      entitychicken1.setLocationAndAngles(this.posX, this.posY, this.posZ, this.rotationYaw, 0.0F);
                      entitychicken1.onInitialSpawn(difficulty, null);
                      entitychicken1.setChickenJockey(true);
                      this.worldObj.spawnEntityInWorld(entitychicken1);
                      this.mountEntity(entitychicken1);
                  }
              }
          }
  
          this.setBreakDoorsAItask(this.rand.nextFloat() < f * 0.1F);
          this.setEquipmentBasedOnDifficulty(difficulty);
          this.setEnchantmentBasedOnDifficulty(difficulty);
  
          if (this.getEquipmentInSlot(4) == null) {
              Calendar calendar = this.worldObj.getCurrentDate();
  
              if (calendar.get(2) + 1 == 10 && calendar.get(5) == 31 && this.rand.nextFloat() < 0.25F) {
                  this.setCurrentItemOrArmor(4, new ItemStack(this.rand.nextFloat() < 0.1F ? Blocks.lit_pumpkin : Blocks.pumpkin));
                  this.equipmentDropChances[4] = 0.0F;
              }
          }
  
          this.getEntityAttribute(SharedMonsterAttributes.knockbackResistance).applyModifier(new AttributeModifier("Random spawn bonus", this.rand.nextDouble() * 0.05000000074505806D, 0));
          double d0 = this.rand.nextDouble() * 1.5D * (double) f;
  
          if (d0 > 1.0D) {
              this.getEntityAttribute(SharedMonsterAttributes.followRange).applyModifier(new AttributeModifier("Random zombie-spawn bonus", d0, 2));
          }
  
          if (this.rand.nextFloat() < f * 0.05F) {
              this.getEntityAttribute(reinforcementChance).applyModifier(new AttributeModifier("Leader zombie bonus", this.rand.nextDouble() * 0.25D + 0.5D, 0));
              this.getEntityAttribute(SharedMonsterAttributes.maxHealth).applyModifier(new AttributeModifier("Leader zombie bonus", this.rand.nextDouble() * 3.0D + 1.0D, 2));
              this.setBreakDoorsAItask(true);
          }
  
          return livingdata;
      }
  
      public boolean interact(EntityPlayer player) {
          ItemStack itemstack = player.getCurrentEquippedItem();
  
          if (itemstack != null && itemstack.getItem() == Items.golden_apple && itemstack.getMetadata() == 0 && this.isVillager() && this.isPotionActive(Potion.weakness)) {
              if (!player.capabilities.isCreativeMode) {
                  --itemstack.stackSize;
              }
  
              if (itemstack.stackSize <= 0) {
                  player.inventory.setInventorySlotContents(player.inventory.currentItem, null);
              }
  
              if (!this.worldObj.isRemote) {
                  this.startConversion(this.rand.nextInt(2401) + 3600);
              }
  
              return true;
          } else {
              return false;
          }
      }
  
      protected void startConversion(int ticks) {
          this.conversionTime = ticks;
          this.getDataWatcher().updateObject(14, Byte.valueOf((byte) 1));
          this.removePotionEffect(Potion.weakness.id);
          this.addPotionEffect(new PotionEffect(Potion.damageBoost.id, ticks, Math.min(this.worldObj.getDifficulty().getDifficultyId() - 1, 0)));
          this.worldObj.setEntityState(this, (byte) 16);
      }
  
      public void handleStatusUpdate(byte id) {
          if (id == 16) {
              if (!this.isSilent()) {
                  this.worldObj.playSound(this.posX + 0.5D, this.posY + 0.5D, this.posZ + 0.5D, "mob.zombie.remedy", 1.0F + this.rand.nextFloat(), this.rand.nextFloat() * 0.7F + 0.3F, false);
              }
          } else {
              super.handleStatusUpdate(id);
          }
      }
  
      protected boolean canDespawn() {
          return !this.isConverting();
      }
  
      public boolean isConverting() {
          return this.getDataWatcher().getWatchableObjectByte(14) == 1;
      }
  
      protected void convertToVillager() {
          EntityVillager entityvillager = new EntityVillager(this.worldObj);
          entityvillager.copyLocationAndAnglesFrom(this);
          entityvillager.onInitialSpawn(this.worldObj.getDifficultyForLocation(new BlockPos(entityvillager)), null);
          entityvillager.setLookingForHome();
  
          if (this.isChild()) {
              entityvillager.setGrowingAge(-24000);
          }
  
          this.worldObj.removeEntity(this);
          entityvillager.setNoAI(this.isAIDisabled());
  
          if (this.hasCustomName()) {
              entityvillager.setCustomNameTag(this.getCustomNameTag());
              entityvillager.setAlwaysRenderNameTag(this.getAlwaysRenderNameTag());
          }
  
          this.worldObj.spawnEntityInWorld(entityvillager);
          entityvillager.addPotionEffect(new PotionEffect(Potion.confusion.id, 200, 0));
          this.worldObj.playAuxSFXAtEntity(null, 1017, new BlockPos((int) this.posX, (int) this.posY, (int) this.posZ), 0);
      }
  
      protected int getConversionTimeBoost() {
          int i = 1;
  
          if (this.rand.nextFloat() < 0.01F) {
              int j = 0;
              BlockPos.MutableBlockPos blockpos$mutableblockpos = new BlockPos.MutableBlockPos();
  
              for (int k = (int) this.posX - 4; k < (int) this.posX + 4 && j < 14; ++k) {
                  for (int l = (int) this.posY - 4; l < (int) this.posY + 4 && j < 14; ++l) {
                      for (int i1 = (int) this.posZ - 4; i1 < (int) this.posZ + 4 && j < 14; ++i1) {
                          Block block = this.worldObj.getBlockState(blockpos$mutableblockpos.set(k, l, i1)).getBlock();
  
                          if (block == Blocks.iron_bars || block == Blocks.bed) {
                              if (this.rand.nextFloat() < 0.3F) {
                                  ++i;
                              }
  
                              ++j;
                          }
                      }
                  }
              }
          }
  
          return i;
      }
  
      public void setChildSize(boolean isChild) {
          this.multiplySize(isChild ? 0.5F : 1.0F);
      }
  
      protected final void setSize(float width, float height) {
          boolean flag = this.zombieWidth > 0.0F && this.zombieHeight > 0.0F;
          this.zombieWidth = width;
          this.zombieHeight = height;
  
          if (!flag) {
              this.multiplySize(1.0F);
          }
      }
  
      protected final void multiplySize(float size) {
          super.setSize(this.zombieWidth * size, this.zombieHeight * size);
      }
  
      public double getYOffset() {
          return this.isChild() ? 0.0D : -0.35D;
      }
  
      public void onDeath(DamageSource cause) {
          super.onDeath(cause);
  
          if (cause.getEntity() instanceof EntityCreeper && !(this instanceof EntityPigZombie) && ((EntityCreeper) cause.getEntity()).getPowered() && ((EntityCreeper) cause.getEntity()).isAIEnabled()) {
              ((EntityCreeper) cause.getEntity()).func_175493_co();
              this.entityDropItem(new ItemStack(Items.skull, 1, 2), 0.0F);
          }
      }
  
      class GroupData implements IEntityLivingData {
          public boolean isChild;
          public boolean isVillager;
  
          private GroupData(boolean isBaby, boolean isVillagerZombie) {
              this.isChild = false;
              this.isVillager = false;
              this.isChild = isBaby;
              this.isVillager = isVillagerZombie;
          }
      }
  }
  