content: package net.minecraft.entity.boss;
  
  import com.google.common.collect.Lists;
  import net.minecraft.block.Block;
  import net.minecraft.block.BlockTorch;
  import net.minecraft.block.material.Material;
  import net.minecraft.entity.*;
  import net.minecraft.entity.item.EntityEnderCrystal;
  import net.minecraft.entity.item.EntityXPOrb;
  import net.minecraft.entity.monster.IMob;
  import net.minecraft.entity.player.EntityPlayer;
  import net.minecraft.init.Blocks;
  import net.minecraft.util.*;
  import net.minecraft.world.Explosion;
  import net.minecraft.world.World;
  
  import java.util.Iterator;
  import java.util.List;
  
  public class EntityDragon extends EntityLiving implements IBossDisplayData, IEntityMultiPart, IMob {
      public double targetX;
      public double targetY;
      public double targetZ;
      public double[][] ringBuffer = new double[64][3];
      public int ringBufferIndex = -1;
      public EntityDragonPart[] dragonPartArray;
      public EntityDragonPart dragonPartHead;
      public EntityDragonPart dragonPartBody;
      public EntityDragonPart dragonPartTail1;
      public EntityDragonPart dragonPartTail2;
      public EntityDragonPart dragonPartTail3;
      public EntityDragonPart dragonPartWing1;
      public EntityDragonPart dragonPartWing2;
      public float prevAnimTime;
      public float animTime;
      public boolean forceNewTarget;
      public boolean slowed;
      private Entity target;
      public int deathTicks;
      public EntityEnderCrystal healingEnderCrystal;
  
      public EntityDragon(World worldIn) {
          super(worldIn);
          this.dragonPartArray = new EntityDragonPart[]{this.dragonPartHead = new EntityDragonPart(this, "head", 6.0F, 6.0F), this.dragonPartBody = new EntityDragonPart(this, "body", 8.0F, 8.0F), this.dragonPartTail1 = new EntityDragonPart(this, "tail", 4.0F, 4.0F), this.dragonPartTail2 = new EntityDragonPart(this, "tail", 4.0F, 4.0F), this.dragonPartTail3 = new EntityDragonPart(this, "tail", 4.0F, 4.0F), this.dragonPartWing1 = new EntityDragonPart(this, "wing", 4.0F, 4.0F), this.dragonPartWing2 = new EntityDragonPart(this, "wing", 4.0F, 4.0F)};
          this.setHealth(this.getMaxHealth());
          this.setSize(16.0F, 8.0F);
          this.noClip = true;
          this.isImmuneToFire = true;
          this.targetY = 100.0D;
          this.ignoreFrustumCheck = true;
      }
  
      protected void applyEntityAttributes() {
          super.applyEntityAttributes();
          this.getEntityAttribute(SharedMonsterAttributes.maxHealth).setBaseValue(200.0D);
      }
  
      protected void entityInit() {
          super.entityInit();
      }
  
      public double[] getMovementOffsets(int p_70974_1_, float p_70974_2_) {
          if (this.getHealth() <= 0.0F) {
              p_70974_2_ = 0.0F;
          }
  
          p_70974_2_ = 1.0F - p_70974_2_;
          int i = this.ringBufferIndex - p_70974_1_ & 63;
          int j = this.ringBufferIndex - p_70974_1_ - 1 & 63;
          double[] adouble = new double[3];
          double d0 = this.ringBuffer[i][0];
          double d1 = MathHelper.wrapAngleTo180_double(this.ringBuffer[j][0] - d0);
          adouble[0] = d0 + d1 * (double) p_70974_2_;
          d0 = this.ringBuffer[i][1];
          d1 = this.ringBuffer[j][1] - d0;
          adouble[1] = d0 + d1 * (double) p_70974_2_;
          adouble[2] = this.ringBuffer[i][2] + (this.ringBuffer[j][2] - this.ringBuffer[i][2]) * (double) p_70974_2_;
          return adouble;
      }
  
      public void onLivingUpdate() {
          if (this.worldObj.isRemote) {
              float f = MathHelper.cos(this.animTime * (float) Math.PI * 2.0F);
              float f1 = MathHelper.cos(this.prevAnimTime * (float) Math.PI * 2.0F);
  
              if (f1 <= -0.3F && f >= -0.3F && !this.isSilent()) {
                  this.worldObj.playSound(this.posX, this.posY, this.posZ, "mob.enderdragon.wings", 5.0F, 0.8F + this.rand.nextFloat() * 0.3F, false);
              }
          }
  
          this.prevAnimTime = this.animTime;
  
          if (this.getHealth() <= 0.0F) {
              float f11 = (this.rand.nextFloat() - 0.5F) * 8.0F;
              float f13 = (this.rand.nextFloat() - 0.5F) * 4.0F;
              float f14 = (this.rand.nextFloat() - 0.5F) * 8.0F;
              this.worldObj.spawnParticle(EnumParticleTypes.EXPLOSION_LARGE, this.posX + (double) f11, this.posY + 2.0D + (double) f13, this.posZ + (double) f14, 0.0D, 0.0D, 0.0D);
          } else {
              this.updateDragonEnderCrystal();
              float f10 = 0.2F / (MathHelper.sqrt_double(this.motionX * this.motionX + this.motionZ * this.motionZ) * 10.0F + 1.0F);
              f10 = f10 * (float) Math.pow(2.0D, this.motionY);
  
              if (this.slowed) {
                  this.animTime += f10 * 0.5F;
              } else {
                  this.animTime += f10;
              }
  
              this.rotationYaw = MathHelper.wrapAngleTo180_float(this.rotationYaw);
  
              if (this.isAIDisabled()) {
                  this.animTime = 0.5F;
              } else {
                  if (this.ringBufferIndex < 0) {
                      for (int i = 0; i < this.ringBuffer.length; ++i) {
                          this.ringBuffer[i][0] = this.rotationYaw;
                          this.ringBuffer[i][1] = this.posY;
                      }
                  }
  
                  if (++this.ringBufferIndex == this.ringBuffer.length) {
                      this.ringBufferIndex = 0;
                  }
  
                  this.ringBuffer[this.ringBufferIndex][0] = this.rotationYaw;
                  this.ringBuffer[this.ringBufferIndex][1] = this.posY;
  
                  if (this.worldObj.isRemote) {
                      if (this.newPosRotationIncrements > 0) {
                          double d10 = this.posX + (this.newPosX - this.posX) / (double) this.newPosRotationIncrements;
                          double d0 = this.posY + (this.newPosY - this.posY) / (double) this.newPosRotationIncrements;
                          double d1 = this.posZ + (this.newPosZ - this.posZ) / (double) this.newPosRotationIncrements;
                          double d2 = MathHelper.wrapAngleTo180_double(this.newRotationYaw - (double) this.rotationYaw);
                          this.rotationYaw = (float) ((double) this.rotationYaw + d2 / (double) this.newPosRotationIncrements);
                          this.rotationPitch = (float) ((double) this.rotationPitch + (this.newRotationPitch - (double) this.rotationPitch) / (double) this.newPosRotationIncrements);
                          --this.newPosRotationIncrements;
                          this.setPosition(d10, d0, d1);
                          this.setRotation(this.rotationYaw, this.rotationPitch);
                      }
                  } else {
                      double d11 = this.targetX - this.posX;
                      double d12 = this.targetY - this.posY;
                      double d13 = this.targetZ - this.posZ;
                      double d14 = d11 * d11 + d12 * d12 + d13 * d13;
  
                      if (this.target != null) {
                          this.targetX = this.target.posX;
                          this.targetZ = this.target.posZ;
                          double d3 = this.targetX - this.posX;
                          double d5 = this.targetZ - this.posZ;
                          double d7 = Math.sqrt(d3 * d3 + d5 * d5);
                          double d8 = 0.4000000059604645D + d7 / 80.0D - 1.0D;
  
                          if (d8 > 10.0D) {
                              d8 = 10.0D;
                          }
  
                          this.targetY = this.target.getEntityBoundingBox().minY + d8;
                      } else {
                          this.targetX += this.rand.nextGaussian() * 2.0D;
                          this.targetZ += this.rand.nextGaussian() * 2.0D;
                      }
  
                      if (this.forceNewTarget || d14 < 100.0D || d14 > 22500.0D || this.isCollidedHorizontally || this.isCollidedVertically) {
                          this.setNewTarget();
                      }
  
                      d12 = d12 / (double) MathHelper.sqrt_double(d11 * d11 + d13 * d13);
                      float f17 = 0.6F;
                      d12 = MathHelper.clamp_double(d12, -f17, f17);
                      this.motionY += d12 * 0.10000000149011612D;
                      this.rotationYaw = MathHelper.wrapAngleTo180_float(this.rotationYaw);
                      double d4 = 180.0D - MathHelper.atan2(d11, d13) * 180.0D / Math.PI;
                      double d6 = MathHelper.wrapAngleTo180_double(d4 - (double) this.rotationYaw);
  
                      if (d6 > 50.0D) {
                          d6 = 50.0D;
                      }
  
                      if (d6 < -50.0D) {
                          d6 = -50.0D;
                      }
  
                      Vec3 vec3 = (new Vec3(this.targetX - this.posX, this.targetY - this.posY, this.targetZ - this.posZ)).normalize();
                      double d15 = -MathHelper.cos(this.rotationYaw * (float) Math.PI / 180.0F);
                      Vec3 vec31 = (new Vec3(MathHelper.sin(this.rotationYaw * (float) Math.PI / 180.0F), this.motionY, d15)).normalize();
                      float f5 = ((float) vec31.dotProduct(vec3) + 0.5F) / 1.5F;
  
                      if (f5 < 0.0F) {
                          f5 = 0.0F;
                      }
  
                      this.randomYawVelocity *= 0.8F;
                      float f6 = MathHelper.sqrt_double(this.motionX * this.motionX + this.motionZ * this.motionZ) + 1.0F;
                      double d9 = Math.sqrt(this.motionX * this.motionX + this.motionZ * this.motionZ) + 1.0D;
  
                      if (d9 > 40.0D) {
                          d9 = 40.0D;
                      }
  
                      this.randomYawVelocity = (float) ((double) this.randomYawVelocity + d6 * (0.699999988079071D / d9 / (double) f6));
                      this.rotationYaw += this.randomYawVelocity * 0.1F;
                      float f7 = (float) (2.0D / (d9 + 1.0D));
                      float f8 = 0.06F;
                      this.moveFlying(0.0F, -1.0F, f8 * (f5 * f7 + (1.0F - f7)));
  
                      if (this.slowed) {
                          this.moveEntity(this.motionX * 0.800000011920929D, this.motionY * 0.800000011920929D, this.motionZ * 0.800000011920929D);
                      } else {
                          this.moveEntity(this.motionX, this.motionY, this.motionZ);
                      }
  
                      Vec3 vec32 = (new Vec3(this.motionX, this.motionY, this.motionZ)).normalize();
                      float f9 = ((float) vec32.dotProduct(vec31) + 1.0F) / 2.0F;
                      f9 = 0.8F + 0.15F * f9;
                      this.motionX *= f9;
                      this.motionZ *= f9;
                      this.motionY *= 0.9100000262260437D;
                  }
  
                  this.renderYawOffset = this.rotationYaw;
                  this.dragonPartHead.width = this.dragonPartHead.height = 3.0F;
                  this.dragonPartTail1.width = this.dragonPartTail1.height = 2.0F;
                  this.dragonPartTail2.width = this.dragonPartTail2.height = 2.0F;
                  this.dragonPartTail3.width = this.dragonPartTail3.height = 2.0F;
                  this.dragonPartBody.height = 3.0F;
                  this.dragonPartBody.width = 5.0F;
                  this.dragonPartWing1.height = 2.0F;
                  this.dragonPartWing1.width = 4.0F;
                  this.dragonPartWing2.height = 3.0F;
                  this.dragonPartWing2.width = 4.0F;
                  float f12 = (float) (this.getMovementOffsets(5, 1.0F)[1] - this.getMovementOffsets(10, 1.0F)[1]) * 10.0F / 180.0F * (float) Math.PI;
                  float f2 = MathHelper.cos(f12);
                  float f15 = -MathHelper.sin(f12);
                  float f3 = this.rotationYaw * (float) Math.PI / 180.0F;
                  float f16 = MathHelper.sin(f3);
                  float f4 = MathHelper.cos(f3);
                  this.dragonPartBody.onUpdate();
                  this.dragonPartBody.setLocationAndAngles(this.posX + (double) (f16 * 0.5F), this.posY, this.posZ - (double) (f4 * 0.5F), 0.0F, 0.0F);
                  this.dragonPartWing1.onUpdate();
                  this.dragonPartWing1.setLocationAndAngles(this.posX + (double) (f4 * 4.5F), this.posY + 2.0D, this.posZ + (double) (f16 * 4.5F), 0.0F, 0.0F);
                  this.dragonPartWing2.onUpdate();
                  this.dragonPartWing2.setLocationAndAngles(this.posX - (double) (f4 * 4.5F), this.posY + 2.0D, this.posZ - (double) (f16 * 4.5F), 0.0F, 0.0F);
  
                  if (!this.worldObj.isRemote && this.hurtTime == 0) {
                      this.collideWithEntities(this.worldObj.getEntitiesWithinAABBExcludingEntity(this, this.dragonPartWing1.getEntityBoundingBox().expand(4.0D, 2.0D, 4.0D).offset(0.0D, -2.0D, 0.0D)));
                      this.collideWithEntities(this.worldObj.getEntitiesWithinAABBExcludingEntity(this, this.dragonPartWing2.getEntityBoundingBox().expand(4.0D, 2.0D, 4.0D).offset(0.0D, -2.0D, 0.0D)));
                      this.attackEntitiesInList(this.worldObj.getEntitiesWithinAABBExcludingEntity(this, this.dragonPartHead.getEntityBoundingBox().expand(1.0D, 1.0D, 1.0D)));
                  }
  
                  double[] adouble1 = this.getMovementOffsets(5, 1.0F);
                  double[] adouble = this.getMovementOffsets(0, 1.0F);
                  float f18 = MathHelper.sin(this.rotationYaw * (float) Math.PI / 180.0F - this.randomYawVelocity * 0.01F);
                  float f19 = MathHelper.cos(this.rotationYaw * (float) Math.PI / 180.0F - this.randomYawVelocity * 0.01F);
                  this.dragonPartHead.onUpdate();
                  this.dragonPartHead.setLocationAndAngles(this.posX + (double) (f18 * 5.5F * f2), this.posY + (adouble[1] - adouble1[1]) + (double) (f15 * 5.5F), this.posZ - (double) (f19 * 5.5F * f2), 0.0F, 0.0F);
  
                  for (int j = 0; j < 3; ++j) {
                      EntityDragonPart entitydragonpart = null;
  
                      if (j == 0) {
                          entitydragonpart = this.dragonPartTail1;
                      }
  
                      if (j == 1) {
                          entitydragonpart = this.dragonPartTail2;
                      }
  
                      if (j == 2) {
                          entitydragonpart = this.dragonPartTail3;
                      }
  
                      double[] adouble2 = this.getMovementOffsets(12 + j * 2, 1.0F);
                      float f20 = this.rotationYaw * (float) Math.PI / 180.0F + this.simplifyAngle(adouble2[0] - adouble1[0]) * (float) Math.PI / 180.0F;
                      float f21 = MathHelper.sin(f20);
                      float f22 = MathHelper.cos(f20);
                      float f23 = 1.5F;
                      float f24 = (float) (j + 1) * 2.0F;
                      entitydragonpart.onUpdate();
                      entitydragonpart.setLocationAndAngles(this.posX - (double) ((f16 * f23 + f21 * f24) * f2), this.posY + (adouble2[1] - adouble1[1]) - (double) ((f24 + f23) * f15) + 1.5D, this.posZ + (double) ((f4 * f23 + f22 * f24) * f2), 0.0F, 0.0F);
                  }
  
                  if (!this.worldObj.isRemote) {
                      this.slowed = this.destroyBlocksInAABB(this.dragonPartHead.getEntityBoundingBox()) | this.destroyBlocksInAABB(this.dragonPartBody.getEntityBoundingBox());
                  }
              }
          }
      }
  
      private void updateDragonEnderCrystal() {
          if (this.healingEnderCrystal != null) {
              if (this.healingEnderCrystal.isDead) {
                  if (!this.worldObj.isRemote) {
                      this.attackEntityFromPart(this.dragonPartHead, DamageSource.setExplosionSource(null), 10.0F);
                  }
  
                  this.healingEnderCrystal = null;
              } else if (this.ticksExisted % 10 == 0 && this.getHealth() < this.getMaxHealth()) {
                  this.setHealth(this.getHealth() + 1.0F);
              }
          }
  
          if (this.rand.nextInt(10) == 0) {
              float f = 32.0F;
              List<EntityEnderCrystal> list = this.worldObj.getEntitiesWithinAABB(EntityEnderCrystal.class, this.getEntityBoundingBox().expand(f, f, f));
              EntityEnderCrystal entityendercrystal = null;
              double d0 = Double.MAX_VALUE;
  
              for (EntityEnderCrystal entityendercrystal1 : list) {
                  double d1 = entityendercrystal1.getDistanceSqToEntity(this);
  
                  if (d1 < d0) {
                      d0 = d1;
                      entityendercrystal = entityendercrystal1;
                  }
              }
  
              this.healingEnderCrystal = entityendercrystal;
          }
      }
  
      private void collideWithEntities(List<Entity> p_70970_1_) {
          double d0 = (this.dragonPartBody.getEntityBoundingBox().minX + this.dragonPartBody.getEntityBoundingBox().maxX) / 2.0D;
          double d1 = (this.dragonPartBody.getEntityBoundingBox().minZ + this.dragonPartBody.getEntityBoundingBox().maxZ) / 2.0D;
  
          for (Entity entity : p_70970_1_) {
              if (entity instanceof EntityLivingBase) {
                  double d2 = entity.posX - d0;
                  double d3 = entity.posZ - d1;
                  double d4 = d2 * d2 + d3 * d3;
                  entity.addVelocity(d2 / d4 * 4.0D, 0.20000000298023224D, d3 / d4 * 4.0D);
              }
          }
      }
  
      private void attackEntitiesInList(List<Entity> p_70971_1_) {
          for (int i = 0; i < p_70971_1_.size(); ++i) {
              Entity entity = p_70971_1_.get(i);
  
              if (entity instanceof EntityLivingBase) {
                  entity.attackEntityFrom(DamageSource.causeMobDamage(this), 10.0F);
                  this.applyEnchantments(this, entity);
              }
          }
      }
  
      private void setNewTarget() {
          this.forceNewTarget = false;
          List<EntityPlayer> list = Lists.newArrayList(this.worldObj.playerEntities);
          Iterator<EntityPlayer> iterator = list.iterator();
  
          while (iterator.hasNext()) {
              if (iterator.next().isSpectator()) {
                  iterator.remove();
              }
          }
  
          if (this.rand.nextInt(2) == 0 && !list.isEmpty()) {
              this.target = list.get(this.rand.nextInt(list.size()));
          } else {
              while (true) {
                  this.targetX = 0.0D;
                  this.targetY = 70.0F + this.rand.nextFloat() * 50.0F;
                  this.targetZ = 0.0D;
                  this.targetX += this.rand.nextFloat() * 120.0F - 60.0F;
                  this.targetZ += this.rand.nextFloat() * 120.0F - 60.0F;
                  double d0 = this.posX - this.targetX;
                  double d1 = this.posY - this.targetY;
                  double d2 = this.posZ - this.targetZ;
                  boolean flag = d0 * d0 + d1 * d1 + d2 * d2 > 100.0D;
  
                  if (flag) {
                      break;
                  }
              }
  
              this.target = null;
          }
      }
  
      private float simplifyAngle(double p_70973_1_) {
          return (float) MathHelper.wrapAngleTo180_double(p_70973_1_);
      }
  
      private boolean destroyBlocksInAABB(AxisAlignedBB p_70972_1_) {
          int i = MathHelper.floor_double(p_70972_1_.minX);
          int j = MathHelper.floor_double(p_70972_1_.minY);
          int k = MathHelper.floor_double(p_70972_1_.minZ);
          int l = MathHelper.floor_double(p_70972_1_.maxX);
          int i1 = MathHelper.floor_double(p_70972_1_.maxY);
          int j1 = MathHelper.floor_double(p_70972_1_.maxZ);
          boolean flag = false;
          boolean flag1 = false;
  
          for (int k1 = i; k1 <= l; ++k1) {
              for (int l1 = j; l1 <= i1; ++l1) {
                  for (int i2 = k; i2 <= j1; ++i2) {
                      BlockPos blockpos = new BlockPos(k1, l1, i2);
                      Block block = this.worldObj.getBlockState(blockpos).getBlock();
  
                      if (block.getMaterial() != Material.air) {
                          if (block != Blocks.barrier && block != Blocks.obsidian && block != Blocks.end_stone && block != Blocks.bedrock && block != Blocks.command_block && this.worldObj.getGameRules().getBoolean("mobGriefing")) {
                              flag1 = this.worldObj.setBlockToAir(blockpos) || flag1;
                          } else {
                              flag = true;
                          }
                      }
                  }
              }
          }
  
          if (flag1) {
              double d0 = p_70972_1_.minX + (p_70972_1_.maxX - p_70972_1_.minX) * (double) this.rand.nextFloat();
              double d1 = p_70972_1_.minY + (p_70972_1_.maxY - p_70972_1_.minY) * (double) this.rand.nextFloat();
              double d2 = p_70972_1_.minZ + (p_70972_1_.maxZ - p_70972_1_.minZ) * (double) this.rand.nextFloat();
              this.worldObj.spawnParticle(EnumParticleTypes.EXPLOSION_LARGE, d0, d1, d2, 0.0D, 0.0D, 0.0D);
          }
  
          return flag;
      }
  
      public boolean attackEntityFromPart(EntityDragonPart dragonPart, DamageSource source, float p_70965_3_) {
          if (dragonPart != this.dragonPartHead) {
              p_70965_3_ = p_70965_3_ / 4.0F + 1.0F;
          }
  
          float f = this.rotationYaw * (float) Math.PI / 180.0F;
          float f1 = MathHelper.sin(f);
          float f2 = MathHelper.cos(f);
          this.targetX = this.posX + (double) (f1 * 5.0F) + (double) ((this.rand.nextFloat() - 0.5F) * 2.0F);
          this.targetY = this.posY + (double) (this.rand.nextFloat() * 3.0F) + 1.0D;
          this.targetZ = this.posZ - (double) (f2 * 5.0F) + (double) ((this.rand.nextFloat() - 0.5F) * 2.0F);
          this.target = null;
  
          if (source.getEntity() instanceof EntityPlayer || source.isExplosion()) {
              this.attackDragonFrom(source, p_70965_3_);
          }
  
          return true;
      }
  
      public boolean attackEntityFrom(DamageSource source, float amount) {
          if (source instanceof EntityDamageSource && ((EntityDamageSource) source).getIsThornsDamage()) {
              this.attackDragonFrom(source, amount);
          }
  
          return false;
      }
  
      protected boolean attackDragonFrom(DamageSource source, float amount) {
          return super.attackEntityFrom(source, amount);
      }
  
      public void onKillCommand() {
          this.setDead();
      }
  
      protected void onDeathUpdate() {
          ++this.deathTicks;
  
          if (this.deathTicks >= 180 && this.deathTicks <= 200) {
              float f = (this.rand.nextFloat() - 0.5F) * 8.0F;
              float f1 = (this.rand.nextFloat() - 0.5F) * 4.0F;
              float f2 = (this.rand.nextFloat() - 0.5F) * 8.0F;
              this.worldObj.spawnParticle(EnumParticleTypes.EXPLOSION_HUGE, this.posX + (double) f, this.posY + 2.0D + (double) f1, this.posZ + (double) f2, 0.0D, 0.0D, 0.0D);
          }
  
          boolean flag = this.worldObj.getGameRules().getBoolean("doMobLoot");
  
          if (!this.worldObj.isRemote) {
              if (this.deathTicks > 150 && this.deathTicks % 5 == 0 && flag) {
                  int i = 1000;
  
                  while (i > 0) {
                      int k = EntityXPOrb.getXPSplit(i);
                      i -= k;
                      this.worldObj.spawnEntityInWorld(new EntityXPOrb(this.worldObj, this.posX, this.posY, this.posZ, k));
                  }
              }
  
              if (this.deathTicks == 1) {
                  this.worldObj.playBroadcastSound(1018, new BlockPos(this), 0);
              }
          }
  
          this.moveEntity(0.0D, 0.10000000149011612D, 0.0D);
          this.renderYawOffset = this.rotationYaw += 20.0F;
  
          if (this.deathTicks == 200 && !this.worldObj.isRemote) {
              if (flag) {
                  int j = 2000;
  
                  while (j > 0) {
                      int l = EntityXPOrb.getXPSplit(j);
                      j -= l;
                      this.worldObj.spawnEntityInWorld(new EntityXPOrb(this.worldObj, this.posX, this.posY, this.posZ, l));
                  }
              }
  
              this.generatePortal(new BlockPos(this.posX, 64.0D, this.posZ));
              this.setDead();
          }
      }
  
      private void generatePortal(BlockPos pos) {
          int i = 4;
          double d0 = 12.25D;
          double d1 = 6.25D;
  
          for (int j = -1; j <= 32; ++j) {
              for (int k = -4; k <= 4; ++k) {
                  for (int l = -4; l <= 4; ++l) {
                      double d2 = k * k + l * l;
  
                      if (d2 <= 12.25D) {
                          BlockPos blockpos = pos.add(k, j, l);
  
                          if (j < 0) {
                              if (d2 <= 6.25D) {
                                  this.worldObj.setBlockState(blockpos, Blocks.bedrock.getDefaultState());
                              }
                          } else if (j > 0) {
                              this.worldObj.setBlockState(blockpos, Blocks.air.getDefaultState());
                          } else if (d2 > 6.25D) {
                              this.worldObj.setBlockState(blockpos, Blocks.bedrock.getDefaultState());
                          } else {
                              this.worldObj.setBlockState(blockpos, Blocks.end_portal.getDefaultState());
                          }
                      }
                  }
              }
          }
  
          this.worldObj.setBlockState(pos, Blocks.bedrock.getDefaultState());
          this.worldObj.setBlockState(pos.up(), Blocks.bedrock.getDefaultState());
          BlockPos blockpos1 = pos.up(2);
          this.worldObj.setBlockState(blockpos1, Blocks.bedrock.getDefaultState());
          this.worldObj.setBlockState(blockpos1.west(), Blocks.torch.getDefaultState().withProperty(BlockTorch.FACING, EnumFacing.EAST));
          this.worldObj.setBlockState(blockpos1.east(), Blocks.torch.getDefaultState().withProperty(BlockTorch.FACING, EnumFacing.WEST));
          this.worldObj.setBlockState(blockpos1.north(), Blocks.torch.getDefaultState().withProperty(BlockTorch.FACING, EnumFacing.SOUTH));
          this.worldObj.setBlockState(blockpos1.south(), Blocks.torch.getDefaultState().withProperty(BlockTorch.FACING, EnumFacing.NORTH));
          this.worldObj.setBlockState(pos.up(3), Blocks.bedrock.getDefaultState());
          this.worldObj.setBlockState(pos.up(4), Blocks.dragon_egg.getDefaultState());
      }
  
      protected void despawnEntity() {
      }
  
      public Entity[] getParts() {
          return this.dragonPartArray;
      }
  
      public boolean canBeCollidedWith() {
          return false;
      }
  
      public World getWorld() {
          return this.worldObj;
      }
  
      protected String getLivingSound() {
          return "mob.enderdragon.growl";
      }
  
      protected String getHurtSound() {
          return "mob.enderdragon.hit";
      }
  
      protected float getSoundVolume() {
          return 5.0F;
      }
  }
  