PaperMC/nms-patches/EntityLiving.patch

--- a/net/minecraft/server/EntityLiving.java
+++ b/net/minecraft/server/EntityLiving.java
@@ -13,6 +13,24 @@
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
 
+// CraftBukkit start
+import java.util.ArrayList;
+import com.google.common.base.Function;
+import com.google.common.collect.Lists;
+import org.bukkit.Location;
+import org.bukkit.craftbukkit.attribute.CraftAttributeMap;
+import org.bukkit.craftbukkit.event.CraftEventFactory;
+import org.bukkit.craftbukkit.inventory.CraftItemStack;
+import org.bukkit.entity.LivingEntity;
+import org.bukkit.entity.Player;
+import org.bukkit.event.entity.EntityDamageEvent;
+import org.bukkit.event.entity.EntityDamageEvent.DamageModifier;
+import org.bukkit.event.entity.EntityRegainHealthEvent;
+import org.bukkit.event.entity.EntityResurrectEvent;
+import org.bukkit.event.entity.EntityTeleportEvent;
+import org.bukkit.event.player.PlayerItemConsumeEvent;
+// CraftBukkit end
+
 public abstract class EntityLiving extends Entity {
 
     private static final Logger a = LogManager.getLogger();
@@ -87,6 +105,14 @@
     private BlockPosition bE;
     private DamageSource bF;
     private long bG;
+    // CraftBukkit start
+    public int expToDrop;
+    public int maxAirTicks = 300;
+    boolean forceDrops;
+    ArrayList<org.bukkit.inventory.ItemStack> drops = new ArrayList<org.bukkit.inventory.ItemStack>();
+    public org.bukkit.craftbukkit.attribute.CraftAttributeMap craftAttributes;
+    public boolean collides = true;
+    // CraftBukkit end
 
     public void Q() {
         this.damageEntity(DamageSource.OUT_OF_WORLD, Float.MAX_VALUE);
@@ -101,7 +127,8 @@
         this.updateEffects = true;
         this.activeItem = ItemStack.a;
         this.initAttributes();
-        this.setHealth(this.getMaxHealth());
+        // CraftBukkit - setHealth(getMaxHealth()) inlined and simplified to skip the instanceof check for EntityPlayer, as getBukkitEntity() is not initialized in constructor
+        this.datawatcher.set(EntityLiving.HEALTH, (float) this.getAttributeInstance(GenericAttributes.maxHealth).getValue());
         this.i = true;
         this.aM = (float) ((Math.random() + 1.0D) * 0.009999999776482582D);
         this.setPosition(this.locX, this.locY, this.locZ);
@@ -139,7 +166,13 @@
                 double d1 = Math.min((double) (0.2F + f / 15.0F), 2.5D);
                 int i = (int) (150.0D * d1);
 
-                ((WorldServer) this.world).a(EnumParticle.BLOCK_DUST, this.locX, this.locY, this.locZ, i, 0.0D, 0.0D, 0.0D, 0.15000000596046448D, new int[] { Block.getCombinedId(iblockdata)});
+                // CraftBukkit start - visiblity api
+                if (this instanceof EntityPlayer) {
+                    ((WorldServer) this.world).sendParticles((EntityPlayer) this, EnumParticle.BLOCK_DUST, false, this.locX, this.locY, this.locZ, i, 0.0D, 0.0D, 0.0D, 0.15000000596046448D, new int[] { Block.getCombinedId(iblockdata)});
+                } else {
+                    ((WorldServer) this.world).a(EnumParticle.BLOCK_DUST, this.locX, this.locY, this.locZ, i, 0.0D, 0.0D, 0.0D, 0.15000000596046448D, new int[] { Block.getCombinedId(iblockdata)});
+                }
+                // CraftBukkit end
             }
         }
 
@@ -201,7 +234,11 @@
                     this.stopRiding();
                 }
             } else {
-                this.setAirTicks(300);
+                // CraftBukkit start - Only set if needed to work around a DataWatcher inefficiency
+                if (this.getAirTicks() != 300) {
+                    this.setAirTicks(maxAirTicks);
+                }
+                // CraftBukkit end
             }
 
             if (!this.world.isClientSide) {
@@ -258,6 +295,18 @@
         this.world.methodProfiler.b();
     }
 
+    // CraftBukkit start
+    public int getExpReward() {
+        int exp = this.getExpValue(this.killer);
+
+        if (!this.world.isClientSide && (this.lastDamageByPlayerTime > 0 || this.alwaysGivesExp()) && this.isDropExperience() && this.world.getGameRules().getBoolean("doMobLoot")) {
+            return exp;
+        } else {
+            return 0;
+        }
+    }
+    // CraftBukkit end
+
     protected void b(BlockPosition blockposition) {
         int i = EnchantmentManager.a(Enchantments.j, this);
 
@@ -273,19 +322,19 @@
 
     protected void bG() {
         ++this.deathTicks;
-        if (this.deathTicks == 20) {
+        if (this.deathTicks >= 20 && !this.dead) { // CraftBukkit - (this.deathTicks == 20) -> (this.deathTicks >= 20 && !this.dead)
             int i;
 
-            if (!this.world.isClientSide && (this.alwaysGivesExp() || this.lastDamageByPlayerTime > 0 && this.isDropExperience() && this.world.getGameRules().getBoolean("doMobLoot"))) {
-                i = this.getExpValue(this.killer);
-
-                while (i > 0) {
-                    int j = EntityExperienceOrb.getOrbValue(i);
+            // CraftBukkit start - Update getExpReward() above if the removed if() changes!
+            i = this.expToDrop;
+            while (i > 0) {
+                int j = EntityExperienceOrb.getOrbValue(i);
 
-                    i -= j;
-                    this.world.addEntity(new EntityExperienceOrb(this.world, this.locX, this.locY, this.locZ, j));
-                }
+                i -= j;
+                this.world.addEntity(new EntityExperienceOrb(this.world, this.locX, this.locY, this.locZ, j));
             }
+            this.expToDrop = 0;
+            // CraftBukkit end
 
             this.die();
 
@@ -441,6 +490,17 @@
             }
         }
 
+        // CraftBukkit start
+        if (nbttagcompound.hasKey("Bukkit.MaxHealth")) {
+            NBTBase nbtbase = nbttagcompound.get("Bukkit.MaxHealth");
+            if (nbtbase.getTypeId() == 5) {
+                this.getAttributeInstance(GenericAttributes.maxHealth).setValue(((NBTTagFloat) nbtbase).asDouble());
+            } else if (nbtbase.getTypeId() == 3) {
+                this.getAttributeInstance(GenericAttributes.maxHealth).setValue(((NBTTagInt) nbtbase).asDouble());
+            }
+        }
+        // CraftBukkit end
+
         if (nbttagcompound.hasKeyOfType("Health", 99)) {
             this.setHealth(nbttagcompound.getFloat("Health"));
         }
@@ -463,9 +523,15 @@
 
     }
 
+    // CraftBukkit start
+    private boolean isTickingEffects = false;
+    private List<Object> effectsToProcess = Lists.newArrayList();
+    // CraftBukkit end
+
     protected void tickPotionEffects() {
         Iterator iterator = this.effects.keySet().iterator();
 
+        isTickingEffects = true; // CraftBukkit
         try {
             while (iterator.hasNext()) {
                 MobEffectList mobeffectlist = (MobEffectList) iterator.next();
@@ -483,6 +549,16 @@
         } catch (ConcurrentModificationException concurrentmodificationexception) {
             ;
         }
+        // CraftBukkit start
+        isTickingEffects = false;
+        for (Object e : effectsToProcess) {
+            if (e instanceof MobEffect) {
+                addEffect((MobEffect) e);
+            } else {
+                removeEffect((MobEffectList) e);
+            }
+        }
+        // CraftBukkit end
 
         if (this.updateEffects) {
             if (!this.world.isClientSide) {
@@ -580,6 +656,12 @@
     }
 
     public void addEffect(MobEffect mobeffect) {
+        // CraftBukkit start
+        if (isTickingEffects) {
+            effectsToProcess.add(mobeffect);
+            return;
+        }
+        // CraftBukkit end
         if (this.d(mobeffect)) {
             MobEffect mobeffect1 = (MobEffect) this.effects.get(mobeffect.getMobEffect());
 
@@ -612,6 +694,12 @@
 
     @Nullable
     public MobEffect c(@Nullable MobEffectList mobeffectlist) {
+        // CraftBukkit start
+        if (isTickingEffects) {
+            effectsToProcess.add(mobeffectlist);
+            return null;
+        }
+        // CraftBukkit end
         return (MobEffect) this.effects.remove(mobeffectlist);
     }
 
@@ -651,20 +739,52 @@
 
     }
 
+    // CraftBukkit start - Delegate so we can handle providing a reason for health being regained
     public void heal(float f) {
+        heal(f, EntityRegainHealthEvent.RegainReason.CUSTOM);
+    }
+
+    public void heal(float f, EntityRegainHealthEvent.RegainReason regainReason) {
         float f1 = this.getHealth();
 
         if (f1 > 0.0F) {
-            this.setHealth(f1 + f);
+            EntityRegainHealthEvent event = new EntityRegainHealthEvent(this.getBukkitEntity(), f, regainReason);
+            this.world.getServer().getPluginManager().callEvent(event);
+
+            if (!event.isCancelled()) {
+                this.setHealth((float) (this.getHealth() + event.getAmount()));
+            }
+            // CraftBukkit end
         }
 
     }
 
     public final float getHealth() {
+        // CraftBukkit start - Use unscaled health
+        if (this instanceof EntityPlayer) {
+            return (float) ((EntityPlayer) this).getBukkitEntity().getHealth();
+        }
+        // CraftBukkit end
         return ((Float) this.datawatcher.get(EntityLiving.HEALTH)).floatValue();
     }
 
     public void setHealth(float f) {
+        // CraftBukkit start - Handle scaled health
+        if (this instanceof EntityPlayer) {
+            org.bukkit.craftbukkit.entity.CraftPlayer player = ((EntityPlayer) this).getBukkitEntity();
+            // Squeeze
+            if (f < 0.0F) {
+                player.setRealHealth(0.0D);
+            } else if (f > player.getMaxHealth()) {
+                player.setRealHealth(player.getMaxHealth());
+            } else {
+                player.setRealHealth(f);
+            }
+
+            this.datawatcher.set(EntityLiving.HEALTH, Float.valueOf(player.getScaledHealth()));
+            return;
+        }
+        // CraftBukkit end
         this.datawatcher.set(EntityLiving.HEALTH, Float.valueOf(MathHelper.a(f, 0.0F, this.getMaxHealth())));
     }
 
@@ -680,14 +800,16 @@
             } else if (damagesource.o() && this.hasEffect(MobEffects.FIRE_RESISTANCE)) {
                 return false;
             } else {
-                if ((damagesource == DamageSource.ANVIL || damagesource == DamageSource.FALLING_BLOCK) && !this.getEquipment(EnumItemSlot.HEAD).isEmpty()) {
+                // CraftBukkit - Moved into damageEntity0(DamageSource, float)
+                if (false && (damagesource == DamageSource.ANVIL || damagesource == DamageSource.FALLING_BLOCK) && !this.getEquipment(EnumItemSlot.HEAD).isEmpty()) {
                     this.getEquipment(EnumItemSlot.HEAD).damage((int) (f * 4.0F + this.random.nextFloat() * f * 2.0F), this);
                     f *= 0.75F;
                 }
 
-                boolean flag = false;
+                boolean flag = f > 0.0F && this.applyBlockingModifier(damagesource); // Copied from below
 
-                if (f > 0.0F && this.applyBlockingModifier(damagesource)) {
+                // CraftBukkit - Moved into damageEntity0(DamageSource, float)
+                if (false && f > 0.0F && this.applyBlockingModifier(damagesource)) {
                     this.damageShield(f);
                     f = 0.0F;
                     if (!damagesource.a()) {
@@ -706,20 +828,39 @@
 
                 if ((float) this.noDamageTicks > (float) this.maxNoDamageTicks / 2.0F) {
                     if (f <= this.lastDamage) {
+                        this.forceExplosionKnockback = true; // CraftBukkit - SPIGOT-949 - for vanilla consistency, cooldown does not prevent explosion knockback
                         return false;
                     }
 
-                    this.damageEntity0(damagesource, f - this.lastDamage);
+                    // CraftBukkit start
+                    if (!this.damageEntity0(damagesource, f - this.lastDamage)) {
+                        return false;
+                    }
+                    // CraftBukkit end
                     this.lastDamage = f;
                     flag1 = false;
                 } else {
+                    // CraftBukkit start
+                    if (!this.damageEntity0(damagesource, f)) {
+                        return false;
+                    }
                     this.lastDamage = f;
                     this.noDamageTicks = this.maxNoDamageTicks;
-                    this.damageEntity0(damagesource, f);
+                    // this.damageEntity0(damagesource, f);
+                    // CraftBukkit end
                     this.az = 10;
                     this.hurtTicks = this.az;
                 }
 
+                // CraftBukkit start
+                if(this instanceof EntityAnimal){
+                    ((EntityAnimal)this).resetLove(); 
+                    if(this instanceof EntityTameableAnimal){
+                        ((EntityTameableAnimal)this).getGoalSit().setSitting(false);
+                    }
+                }
+                // CraftBukkit end
+
                 this.aA = 0.0F;
                 Entity entity1 = damagesource.getEntity();
 
@@ -817,7 +958,13 @@
                 }
             }
 
-            if (flag) {
+            // CraftBukkit start
+            EntityResurrectEvent event = new EntityResurrectEvent((LivingEntity) this.getBukkitEntity());
+            event.setCancelled(!flag);
+            this.world.getServer().getPluginManager().callEvent(event);
+
+            if (!event.isCancelled()) {
+                // CraftBukkit end
                 if (this instanceof EntityHuman) {
                     ((EntityHuman) this).b(StatisticList.b(Items.cY));
                 }
@@ -914,6 +1061,12 @@
                     boolean flag = this.lastDamageByPlayerTime > 0;
 
                     this.a(flag, i, damagesource);
+                    // CraftBukkit start - Call death event
+                    CraftEventFactory.callEntityDeathEvent(this, this.drops);
+                    this.drops = new ArrayList<org.bukkit.inventory.ItemStack>();
+                } else {
+                    CraftEventFactory.callEntityDeathEvent(this);
+                    // CraftBukkit end
                 }
             }
 
@@ -1003,8 +1156,13 @@
         int i = MathHelper.f((f - 3.0F - f2) * f1);
 
         if (i > 0) {
+            // CraftBukkit start
+            if (!this.damageEntity(DamageSource.FALL, (float) i)) {
+                return;
+            }
+            // CraftBukkit end
             this.a(this.e(i), 1.0F, 1.0F);
-            this.damageEntity(DamageSource.FALL, (float) i);
+            // this.damageEntity(DamageSource.FALL, (float) i); // CraftBukkit - moved up
             int j = MathHelper.floor(this.locX);
             int k = MathHelper.floor(this.locY - 0.20000000298023224D);
             int l = MathHelper.floor(this.locZ);
@@ -1031,7 +1189,7 @@
 
     protected float applyArmorModifier(DamageSource damagesource, float f) {
         if (!damagesource.ignoresArmor()) {
-            this.damageArmor(f);
+            // this.damageArmor(f); // CraftBukkit - Moved into damageEntity0(DamageSource, float)
             f = CombatMath.a(f, (float) this.getArmorStrength(), (float) this.getAttributeInstance(GenericAttributes.h).getValue());
         }
 
@@ -1044,7 +1202,8 @@
         } else {
             int i;
 
-            if (this.hasEffect(MobEffects.RESISTANCE) && damagesource != DamageSource.OUT_OF_WORLD) {
+            // CraftBukkit - Moved to damageEntity0(DamageSource, float)
+            if (false && this.hasEffect(MobEffects.RESISTANCE) && damagesource != DamageSource.OUT_OF_WORLD) {
                 i = (this.getEffect(MobEffects.RESISTANCE).getAmplifier() + 1) * 5;
                 int j = 25 - i;
                 float f1 = f * (float) j;
@@ -1065,22 +1224,129 @@
         }
     }
 
-    protected void damageEntity0(DamageSource damagesource, float f) {
-        if (!this.isInvulnerable(damagesource)) {
-            f = this.applyArmorModifier(damagesource, f);
-            f = this.applyMagicModifier(damagesource, f);
-            float f1 = f;
-
-            f = Math.max(f - this.getAbsorptionHearts(), 0.0F);
-            this.setAbsorptionHearts(this.getAbsorptionHearts() - (f1 - f));
-            if (f != 0.0F) {
+    // CraftBukkit start
+    protected boolean damageEntity0(final DamageSource damagesource, float f) { // void -> boolean, add final
+       if (!this.isInvulnerable(damagesource)) {
+            final boolean human = this instanceof EntityHuman;
+            float originalDamage = f;
+            Function<Double, Double> hardHat = new Function<Double, Double>() {
+                @Override
+                public Double apply(Double f) {
+                    if ((damagesource == DamageSource.ANVIL || damagesource == DamageSource.FALLING_BLOCK) && !EntityLiving.this.getEquipment(EnumItemSlot.HEAD).isEmpty()) {
+                        return -(f - (f * 0.75F));
+
+                    }
+                    return -0.0;
+                }
+            };
+            float hardHatModifier = hardHat.apply((double) f).floatValue();
+            f += hardHatModifier;
+
+            Function<Double, Double> blocking = new Function<Double, Double>() {
+                @Override
+                public Double apply(Double f) {
+                    return -((EntityLiving.this.applyBlockingModifier(damagesource)) ? f : 0.0);
+                }
+            };
+            float blockingModifier = blocking.apply((double) f).floatValue();
+            f += blockingModifier;
+
+            Function<Double, Double> armor = new Function<Double, Double>() {
+                @Override
+                public Double apply(Double f) {
+                    return -(f - EntityLiving.this.applyArmorModifier(damagesource, f.floatValue()));
+                }
+            };
+            float armorModifier = armor.apply((double) f).floatValue();
+            f += armorModifier;
+
+            Function<Double, Double> resistance = new Function<Double, Double>() {
+                @Override
+                public Double apply(Double f) {
+                    if (!damagesource.isStarvation() && EntityLiving.this.hasEffect(MobEffects.RESISTANCE) && damagesource != DamageSource.OUT_OF_WORLD) {
+                        int i = (EntityLiving.this.getEffect(MobEffects.RESISTANCE).getAmplifier() + 1) * 5;
+                        int j = 25 - i;
+                        float f1 = f.floatValue() * (float) j;
+                        return -(f - (f1 / 25.0F));
+                    }
+                    return -0.0;
+                }
+            };
+            float resistanceModifier = resistance.apply((double) f).floatValue();
+            f += resistanceModifier;
+
+            Function<Double, Double> magic = new Function<Double, Double>() {
+                @Override
+                public Double apply(Double f) {
+                    return -(f - EntityLiving.this.applyMagicModifier(damagesource, f.floatValue()));
+                }
+            };
+            float magicModifier = magic.apply((double) f).floatValue();
+            f += magicModifier;
+
+            Function<Double, Double> absorption = new Function<Double, Double>() {
+                @Override
+                public Double apply(Double f) {
+                    return -(Math.max(f - Math.max(f - EntityLiving.this.getAbsorptionHearts(), 0.0F), 0.0F));
+                }
+            };
+            float absorptionModifier = absorption.apply((double) f).floatValue();
+
+            EntityDamageEvent event = CraftEventFactory.handleLivingEntityDamageEvent(this, damagesource, originalDamage, hardHatModifier, blockingModifier, armorModifier, resistanceModifier, magicModifier, absorptionModifier, hardHat, blocking, armor, resistance, magic, absorption);
+            if (event.isCancelled()) {
+                return false;
+            }
+
+            f = (float) event.getFinalDamage();
+
+            // Apply damage to helmet
+            if ((damagesource == DamageSource.ANVIL || damagesource == DamageSource.FALLING_BLOCK) && this.getEquipment(EnumItemSlot.HEAD) != null) {
+                this.getEquipment(EnumItemSlot.HEAD).damage((int) (event.getDamage() * 4.0F + this.random.nextFloat() * event.getDamage() * 2.0F), this);
+            }
+
+            // Apply damage to armor
+            if (!damagesource.ignoresArmor()) {
+                float armorDamage = (float) (event.getDamage() + event.getDamage(DamageModifier.BLOCKING) + event.getDamage(DamageModifier.HARD_HAT));
+                this.damageArmor(armorDamage);
+            }
+
+            // Apply blocking code // PAIL: steal from above
+            if (event.getDamage(DamageModifier.BLOCKING) < 0) {
+                this.damageShield((float) -event.getDamage(DamageModifier.BLOCKING));
+                Entity entity = damagesource.i();
+
+                if (entity instanceof EntityLiving) {
+                    this.c((EntityLiving) entity);
+                }
+            }
+
+            absorptionModifier = (float) -event.getDamage(DamageModifier.ABSORPTION);
+            this.setAbsorptionHearts(Math.max(this.getAbsorptionHearts() - absorptionModifier, 0.0F));
+            if (f > 0 || !human) {
+                if (human) {
+                    // PAIL: Be sure to drag all this code from the EntityHuman subclass each update.
+                    ((EntityHuman) this).applyExhaustion(damagesource.getExhaustionCost());
+                    if (f < 3.4028235E37F) {
+                        ((EntityHuman) this).a(StatisticList.z, Math.round(f * 10.0F));
+                    }
+                }
+                // CraftBukkit end
                 float f2 = this.getHealth();
 
                 this.setHealth(f2 - f);
                 this.getCombatTracker().trackDamage(damagesource, f2, f);
-                this.setAbsorptionHearts(this.getAbsorptionHearts() - f);
+                // CraftBukkit start
+                if (!human) {
+                    this.setAbsorptionHearts(this.getAbsorptionHearts() - f);
+                }
+
+                return true;
+            } else {
+                return event.getDamage(DamageModifier.BLOCKING) < 0;
+                // CraftBukkit end
             }
         }
+        return false; // CraftBukkit
     }
 
     public CombatTracker getCombatTracker() {
@@ -1147,6 +1413,7 @@
     public AttributeMapBase getAttributeMap() {
         if (this.attributeMap == null) {
             this.attributeMap = new AttributeMapServer();
+            this.craftAttributes = new CraftAttributeMap(attributeMap); // CraftBukkit
         }
 
         return this.attributeMap;
@@ -1438,6 +1705,7 @@
                 }
 
                 if (this.onGround && !this.world.isClientSide) {
+                    if (getFlag(7) && !CraftEventFactory.callToggleGlideEvent(this, false).isCancelled()) // CraftBukkit
                     this.setFlag(7, false);
                 }
             } else {
@@ -1798,6 +2066,7 @@
         }
 
         if (!this.world.isClientSide) {
+            if (flag != this.getFlag(7) && !CraftEventFactory.callToggleGlideEvent(this, flag).isCancelled()) // CraftBukkit
             this.setFlag(7, flag);
         }
 
@@ -1895,11 +2164,11 @@
     }
 
     public boolean isInteractable() {
-        return !this.dead;
+        return !this.dead && this.collides; // CraftBukkit
     }
 
     public boolean isCollidable() {
-        return this.isAlive() && !this.m_();
+        return this.isAlive() && !this.m_() && this.collides; // CraftBukkit
     }
 
     protected void ap() {
@@ -2036,7 +2305,23 @@
     protected void v() {
         if (!this.activeItem.isEmpty() && this.isHandRaised()) {
             this.a(this.activeItem, 16);
-            this.a(this.cz(), this.activeItem.a(this.world, this));
+            // CraftBukkit start - fire PlayerItemConsumeEvent
+            org.bukkit.inventory.ItemStack craftItem = CraftItemStack.asBukkitCopy(this.activeItem);
+            PlayerItemConsumeEvent event = new PlayerItemConsumeEvent((Player) this.getBukkitEntity(), craftItem);
+            world.getServer().getPluginManager().callEvent(event);
+
+            if (event.isCancelled()) {
+                // Update client
+                if (this instanceof EntityPlayer) {
+                    ((EntityPlayer) this).getBukkitEntity().updateInventory();
+                    ((EntityPlayer) this).getBukkitEntity().updateScaledHealth();
+                }
+                return;
+            }
+
+            ItemStack itemstack = (craftItem.equals(event.getItem())) ? this.activeItem.a(this.world, this) : CraftItemStack.asNMSCopy(event.getItem()).a(world, this);
+            this.a(this.cz(), itemstack);
+            // CraftBukkit end
             this.cF();
         }
 
@@ -2115,10 +2400,18 @@
             }
 
             if (flag1) {
-                this.enderTeleportTo(this.locX, this.locY, this.locZ);
-                if (world.getCubes(this, this.getBoundingBox()).isEmpty() && !world.containsLiquid(this.getBoundingBox())) {
-                    flag = true;
+                // CraftBukkit start - Teleport event
+                // this.enderTeleportTo(this.locX, this.locY, this.locZ);
+                EntityTeleportEvent teleport = new EntityTeleportEvent(this.getBukkitEntity(), new Location(this.world.getWorld(), d3, d4, d5), new Location(this.world.getWorld(), this.locX, this.locY, this.locZ));
+                this.world.getServer().getPluginManager().callEvent(teleport);
+                if (!teleport.isCancelled()) {
+                    Location to = teleport.getTo();
+                    this.enderTeleportTo(to.getX(), to.getY(), to.getZ());
+                    if (world.getCubes(this, this.getBoundingBox()).isEmpty() && !world.containsLiquid(this.getBoundingBox())) {
+                        flag = true;
+                    }
                 }
+                // CraftBukkit end
             }
         }