Update for 1.8.4

HolographicDisplays/Plugin/com/gmail/filoghost/holographicdisplays/HolographicDisplays.java

@@ -125,12 +125,15 @@ public class HolographicDisplays extends JavaPlugin {
 		} else if ("v1_8_R2".equals(version)) {
 			is1_8 = true;
 			nmsManager = new com.gmail.filoghost.holographicdisplays.nms.v1_8_R2.NmsManagerImpl();
+		} else if ("v1_8_R3".equals(version)) {
+			is1_8 = true;
+			nmsManager = new com.gmail.filoghost.holographicdisplays.nms.v1_8_R3.NmsManagerImpl();
 		} else {
 			printWarnAndDisable(
 				"******************************************************",
 				"     This version of HolographicDisplays can",
 				"     only work on these server versions:",
-				"     from 1.6.4 to 1.8.3.",
+				"     from 1.6.4 to 1.8.4.",
 				"     The plugin will be disabled.",
 				"******************************************************"
 			);

HolographicDisplays/Plugin/com/gmail/filoghost/holographicdisplays/nms/v1_8_R3/CraftNMSArmorStand.java

@@ -0,0 +1,67 @@
+package com.gmail.filoghost.holographicdisplays.nms.v1_8_R3;
+
+import java.util.Collection;
+
+import org.bukkit.EntityEffect;
+import org.bukkit.Location;
+import org.bukkit.craftbukkit.v1_8_R3.CraftServer;
+import org.bukkit.craftbukkit.v1_8_R3.entity.CraftArmorStand;
+import org.bukkit.entity.Entity;
+import org.bukkit.event.player.PlayerTeleportEvent.TeleportCause;
+import org.bukkit.inventory.ItemStack;
+import org.bukkit.potion.PotionEffect;
+import org.bukkit.util.EulerAngle;
+import org.bukkit.util.Vector;
+
+public class CraftNMSArmorStand extends CraftArmorStand {
+
+	public CraftNMSArmorStand(CraftServer server, EntityNMSArmorStand entity) {
+		super(server, entity);
+	}
+	
+	// Disallow all the bukkit methods.
+	
+	@Override
+	public void remove() {
+		// Cannot be removed, this is the most important to override.
+	}
+
+	// Methods from Armor stand class
+	@Override public void setArms(boolean arms) { }
+	@Override public void setBasePlate(boolean basePlate) { }
+	@Override public void setBodyPose(EulerAngle pose) { }
+	@Override public void setBoots(ItemStack item) { }
+	@Override public void setChestplate(ItemStack item) { }
+	@Override public void setGravity(boolean gravity) { }
+	@Override public void setHeadPose(EulerAngle pose) { }
+	@Override public void setHelmet(ItemStack item) { }
+	@Override public void setItemInHand(ItemStack item) { }
+	@Override public void setLeftArmPose(EulerAngle pose) { }
+	@Override public void setLeftLegPose(EulerAngle pose) { }
+	@Override public void setLeggings(ItemStack item) { }
+	@Override public void setRightArmPose(EulerAngle pose) { }
+	@Override public void setRightLegPose(EulerAngle pose) { }
+	@Override public void setSmall(boolean small) { }
+	@Override public void setVisible(boolean visible) { }
+
+	// Methods from LivingEntity class
+	@Override public boolean addPotionEffect(PotionEffect effect) { return false; }
+	@Override public boolean addPotionEffect(PotionEffect effect, boolean param) { return false; }
+	@Override public boolean addPotionEffects(Collection<PotionEffect> effects) { return false; }
+	@Override public void setRemoveWhenFarAway(boolean remove) { }
+	
+	// Methods from Entity
+	@Override public void setVelocity(Vector vel) { }
+	@Override public boolean teleport(Location loc) { return false; }
+	@Override public boolean teleport(Entity entity) { return false; }
+	@Override public boolean teleport(Location loc, TeleportCause cause) { return false; }
+	@Override public boolean teleport(Entity entity, TeleportCause cause) { return false; }
+	@Override public void setFireTicks(int ticks) { }
+	@Override public boolean setPassenger(Entity entity) { return false; }
+	@Override public boolean eject() { return false; }
+	@Override public boolean leaveVehicle() { return false; }
+	@Override public void playEffect(EntityEffect effect) { }
+	@Override public void setCustomName(String name) { }
+	@Override public void setCustomNameVisible(boolean flag) { }
+	
+}

HolographicDisplays/Plugin/com/gmail/filoghost/holographicdisplays/nms/v1_8_R3/CraftNMSItem.java

@@ -0,0 +1,42 @@
+package com.gmail.filoghost.holographicdisplays.nms.v1_8_R3;
+
+import org.bukkit.EntityEffect;
+import org.bukkit.Location;
+import org.bukkit.craftbukkit.v1_8_R3.CraftServer;
+import org.bukkit.craftbukkit.v1_8_R3.entity.CraftItem;
+import org.bukkit.entity.Entity;
+import org.bukkit.event.player.PlayerTeleportEvent.TeleportCause;
+import org.bukkit.inventory.ItemStack;
+import org.bukkit.util.Vector;
+
+public class CraftNMSItem extends CraftItem {
+
+	public CraftNMSItem(CraftServer server, EntityNMSItem entity) {
+		super(server, entity);
+	}
+
+	// Disallow all the bukkit methods.
+	
+	@Override
+	public void remove() {
+		// Cannot be removed, this is the most important to override.
+	}
+
+	// Methods from Entity
+	@Override public void setVelocity(Vector vel) { }
+	@Override public boolean teleport(Location loc) { return false; }
+	@Override public boolean teleport(Entity entity) { return false; }
+	@Override public boolean teleport(Location loc, TeleportCause cause) { return false; }
+	@Override public boolean teleport(Entity entity, TeleportCause cause) { return false; }
+	@Override public void setFireTicks(int ticks) { }
+	@Override public boolean setPassenger(Entity entity) { return false; }
+	@Override public boolean eject() { return false; }
+	@Override public boolean leaveVehicle() { return false; }
+	@Override public void playEffect(EntityEffect effect) { }
+	@Override public void setCustomName(String name) { }
+	@Override public void setCustomNameVisible(boolean flag) { }
+	
+	// Methods from Item
+	@Override public void setItemStack(ItemStack stack) { }
+	@Override public void setPickupDelay(int delay) { }
+}

HolographicDisplays/Plugin/com/gmail/filoghost/holographicdisplays/nms/v1_8_R3/CraftNMSSlime.java

@@ -0,0 +1,49 @@
+package com.gmail.filoghost.holographicdisplays.nms.v1_8_R3;
+
+import java.util.Collection;
+
+import org.bukkit.EntityEffect;
+import org.bukkit.Location;
+import org.bukkit.craftbukkit.v1_8_R3.CraftServer;
+import org.bukkit.craftbukkit.v1_8_R3.entity.CraftSlime;
+import org.bukkit.entity.Entity;
+import org.bukkit.event.player.PlayerTeleportEvent.TeleportCause;
+import org.bukkit.potion.PotionEffect;
+import org.bukkit.util.Vector;
+
+public class CraftNMSSlime extends CraftSlime {
+
+	public CraftNMSSlime(CraftServer server, EntityNMSSlime entity) {
+		super(server, entity);
+	}
+	
+	// Disallow all the bukkit methods.
+	
+	@Override
+	public void remove() {
+		// Cannot be removed, this is the most important to override.
+	}
+	
+	// Methods from LivingEntity class
+	@Override public boolean addPotionEffect(PotionEffect effect) { return false; }
+	@Override public boolean addPotionEffect(PotionEffect effect, boolean param) { return false; }
+	@Override public boolean addPotionEffects(Collection<PotionEffect> effects) { return false; }
+	@Override public void setRemoveWhenFarAway(boolean remove) { }
+	
+	// Methods from Entity
+	@Override public void setVelocity(Vector vel) { }
+	@Override public boolean teleport(Location loc) { return false; }
+	@Override public boolean teleport(Entity entity) { return false; }
+	@Override public boolean teleport(Location loc, TeleportCause cause) { return false; }
+	@Override public boolean teleport(Entity entity, TeleportCause cause) { return false; }
+	@Override public void setFireTicks(int ticks) { }
+	@Override public boolean setPassenger(Entity entity) { return false; }
+	@Override public boolean eject() { return false; }
+	@Override public boolean leaveVehicle() { return false; }
+	@Override public void playEffect(EntityEffect effect) { }
+	@Override public void setCustomName(String name) { }
+	@Override public void setCustomNameVisible(boolean flag) { }
+	
+	// Methods from Slime
+	@Override public void setSize(int size) { }
+}

HolographicDisplays/Plugin/com/gmail/filoghost/holographicdisplays/nms/v1_8_R3/EntityNMSArmorStand.java

@@ -0,0 +1,218 @@
+package com.gmail.filoghost.holographicdisplays.nms.v1_8_R3;
+
+import net.minecraft.server.v1_8_R3.AxisAlignedBB;
+import net.minecraft.server.v1_8_R3.DamageSource;
+import net.minecraft.server.v1_8_R3.EntityArmorStand;
+import net.minecraft.server.v1_8_R3.EntityHuman;
+import net.minecraft.server.v1_8_R3.EntityPlayer;
+import net.minecraft.server.v1_8_R3.ItemStack;
+import net.minecraft.server.v1_8_R3.NBTTagCompound;
+import net.minecraft.server.v1_8_R3.PacketPlayOutEntityTeleport;
+import net.minecraft.server.v1_8_R3.Vec3D;
+import net.minecraft.server.v1_8_R3.World;
+
+import org.bukkit.craftbukkit.v1_8_R3.entity.CraftEntity;
+
+import com.gmail.filoghost.holographicdisplays.nms.interfaces.entity.NMSArmorStand;
+import com.gmail.filoghost.holographicdisplays.object.line.CraftHologramLine;
+import com.gmail.filoghost.holographicdisplays.util.ReflectionUtils;
+import com.gmail.filoghost.holographicdisplays.util.Utils;
+
+public class EntityNMSArmorStand extends EntityArmorStand implements NMSArmorStand {
+
+	private boolean lockTick;
+	private CraftHologramLine parentPiece;
+	
+	public EntityNMSArmorStand(World world, CraftHologramLine parentPiece) {
+		super(world);
+		setInvisible(true);
+		setSmall(true);
+		setArms(false);
+		setGravity(true);
+		setBasePlate(true);
+		this.parentPiece = parentPiece;
+		try {
+			ReflectionUtils.setPrivateField(EntityArmorStand.class, this, "bi", Integer.MAX_VALUE);
+		} catch (Exception e) {
+			// There's still the overridden method.
+		}
+		forceSetBoundingBox(new NullBoundingBox());
+	}
+	
+	
+	@Override
+	public void b(NBTTagCompound nbttagcompound) {
+		// Do not save NBT.
+	}
+	
+	@Override
+	public boolean c(NBTTagCompound nbttagcompound) {
+		// Do not save NBT.
+		return false;
+	}
+
+	@Override
+	public boolean d(NBTTagCompound nbttagcompound) {
+		// Do not save NBT.
+		return false;
+	}
+	
+	@Override
+	public void e(NBTTagCompound nbttagcompound) {
+		// Do not save NBT.
+	}
+	
+	
+	@Override
+	public boolean isInvulnerable(DamageSource source) {
+		/*
+		 * The field Entity.invulnerable is private.
+		 * It's only used while saving NBTTags, but since the entity would be killed
+		 * on chunk unload, we prefer to override isInvulnerable().
+		 */
+	    return true;
+	}
+	
+	@Override
+	public void setCustomName(String customName) {
+		// Locks the custom name.
+	}
+	
+	@Override
+	public void setCustomNameVisible(boolean visible) {
+		// Locks the custom name.
+	}
+
+	@Override
+	public boolean a(EntityHuman human, Vec3D vec3d) {
+		// Prevent stand being equipped
+		return true;
+	}
+
+	@Override
+	public boolean d(int i, ItemStack item) {
+		// Prevent stand being equipped
+		return false;
+	}
+
+	@Override
+	public void setEquipment(int i, ItemStack item) {
+		// Prevent stand being equipped
+	}
+	
+	@Override
+	public void a(AxisAlignedBB boundingBox) {
+		// Do not change it!
+	}
+	
+	public void forceSetBoundingBox(AxisAlignedBB boundingBox) {
+		super.a(boundingBox);
+	}
+	
+	@Override
+	public int getId() {
+		
+		StackTraceElement[] elements = Thread.currentThread().getStackTrace();
+		if (elements.length > 2 && elements[2] != null && elements[2].getFileName().equals("EntityTrackerEntry.java") && elements[2].getLineNumber() > 137 && elements[2].getLineNumber() < 147) {
+			// Then this method is being called when creating a new packet, we return a fake ID!
+			return -1;
+		}
+		
+		return super.getId();
+	}
+
+	@Override
+	public void t_() {
+		if (!lockTick) {
+			super.t_();
+		}
+	}
+	
+	@Override
+	public void makeSound(String sound, float f1, float f2) {
+	    // Remove sounds.
+	}
+	
+	@Override
+	public void setCustomNameNMS(String name) {
+		if (name != null && name.length() > 300) {
+			name = name.substring(0, 300);
+		}
+		super.setCustomName(name);
+		super.setCustomNameVisible(name != null && !name.isEmpty());
+	}
+	
+	@Override
+	public String getCustomNameNMS() {
+		return super.getCustomName();
+	}
+	
+	
+	public void callSuperTick() {
+		super.h();
+	}
+	
+	@Override
+	public void setLockTick(boolean lock) {
+		lockTick = lock;
+	}
+	
+	@Override
+	public void die() {
+		setLockTick(false);
+		super.die();
+	}
+	
+	@Override
+	public CraftEntity getBukkitEntity() {
+		if (super.bukkitEntity == null) {
+			this.bukkitEntity = new CraftNMSArmorStand(this.world.getServer(), this);
+	    }
+		return this.bukkitEntity;
+	}
+	
+	@Override
+	public void killEntityNMS() {
+		die();
+	}
+	
+	@Override
+	public void setLocationNMS(double x, double y, double z) {
+		super.setPosition(x, y, z);
+		
+
+		// Send a packet near to update the position.
+		PacketPlayOutEntityTeleport teleportPacket = new PacketPlayOutEntityTeleport(this);
+
+		for (Object obj : this.world.players) {
+			if (obj instanceof EntityPlayer) {
+				EntityPlayer nmsPlayer = (EntityPlayer) obj;
+
+				double distanceSquared = Utils.square(nmsPlayer.locX - this.locX) + Utils.square(nmsPlayer.locZ - this.locZ);
+				if (distanceSquared < 8192 && nmsPlayer.playerConnection != null) {
+					nmsPlayer.playerConnection.sendPacket(teleportPacket);
+				}
+			}
+		}
+	}
+
+	@Override
+	public boolean isDeadNMS() {
+		return this.dead;
+	}
+	
+	@Override
+	public int getIdNMS() {
+		return this.getId();
+	}
+
+	@Override
+	public CraftHologramLine getHologramLine() {
+		return parentPiece;
+	}
+	
+	@Override
+	public org.bukkit.entity.Entity getBukkitEntityNMS() {
+		return getBukkitEntity();
+	}
+}

HolographicDisplays/Plugin/com/gmail/filoghost/holographicdisplays/nms/v1_8_R3/EntityNMSItem.java

@@ -0,0 +1,222 @@
+package com.gmail.filoghost.holographicdisplays.nms.v1_8_R3;
+
+import net.minecraft.server.v1_8_R3.Entity;
+import net.minecraft.server.v1_8_R3.Blocks;
+import net.minecraft.server.v1_8_R3.DamageSource;
+import net.minecraft.server.v1_8_R3.EntityHuman;
+import net.minecraft.server.v1_8_R3.EntityItem;
+import net.minecraft.server.v1_8_R3.EntityPlayer;
+import net.minecraft.server.v1_8_R3.ItemStack;
+import net.minecraft.server.v1_8_R3.NBTTagCompound;
+import net.minecraft.server.v1_8_R3.NBTTagList;
+import net.minecraft.server.v1_8_R3.NBTTagString;
+import net.minecraft.server.v1_8_R3.World;
+
+import org.bukkit.craftbukkit.v1_8_R3.entity.CraftEntity;
+import org.bukkit.craftbukkit.v1_8_R3.inventory.CraftItemStack;
+import org.bukkit.entity.Player;
+
+import com.gmail.filoghost.holographicdisplays.listener.MainListener;
+import com.gmail.filoghost.holographicdisplays.nms.interfaces.entity.NMSEntityBase;
+import com.gmail.filoghost.holographicdisplays.nms.interfaces.entity.NMSItem;
+import com.gmail.filoghost.holographicdisplays.object.line.CraftItemLine;
+import com.gmail.filoghost.holographicdisplays.util.DebugHandler;
+import com.gmail.filoghost.holographicdisplays.util.ItemUtils;
+import com.gmail.filoghost.holographicdisplays.util.ReflectionUtils;
+
+public class EntityNMSItem extends EntityItem implements NMSItem {
+	
+	private boolean lockTick;
+	private CraftItemLine parentPiece;
+	
+	public EntityNMSItem(World world, CraftItemLine piece) {
+		super(world);
+		super.pickupDelay = Integer.MAX_VALUE;
+		this.parentPiece = piece;
+	}
+	
+	@Override
+	public void t_() {
+		
+		// So it won't get removed.
+		ticksLived = 0;
+		
+		if (!lockTick) {
+			super.t_();
+		}
+	}
+	
+	@Override
+	public ItemStack getItemStack() {
+		// Dirty method to check if the icon is being picked up
+		StackTraceElement[] stacktrace = Thread.currentThread().getStackTrace();
+		if (stacktrace.length > 2 && stacktrace[2].getClassName().contains("EntityInsentient")) {
+			return null; // Try to pickup this, dear entity ignoring the pickupDelay!
+		}
+		
+		return super.getItemStack();
+	}
+	
+	// Method called when a player is near.
+	@Override
+	public void d(EntityHuman human) {
+		
+		if (human.locY < this.locY - 1.5 || human.locY > this.locY + 1.0) {
+			// Too low or too high, it's a bit weird.
+			return;
+		}
+		
+		if (parentPiece.getPickupHandler() != null && human instanceof EntityPlayer) {
+			MainListener.handleItemLinePickup((Player) human.getBukkitEntity(), parentPiece.getPickupHandler(), parentPiece.getParent());
+			// It is never added to the inventory.
+		}
+	}
+	
+	@Override
+	public void b(NBTTagCompound nbttagcompound) {
+		// Do not save NBT.
+	}
+	
+	@Override
+	public boolean c(NBTTagCompound nbttagcompound) {
+		// Do not save NBT.
+		return false;
+	}
+
+	@Override
+	public boolean d(NBTTagCompound nbttagcompound) {
+		// Do not save NBT.
+		return false;
+	}
+	
+	@Override
+	public void e(NBTTagCompound nbttagcompound) {
+		// Do not save NBT.
+	}
+	
+	@Override
+	public boolean isInvulnerable(DamageSource source) {
+		/*
+		 * The field Entity.invulnerable is private.
+		 * It's only used while saving NBTTags, but since the entity would be killed
+		 * on chunk unload, we prefer to override isInvulnerable().
+		 */
+	    return true;
+	}
+	
+	@Override
+	public void inactiveTick() {
+		// Check inactive ticks.
+		
+		if (!lockTick) {
+			super.inactiveTick();
+		}
+	}
+
+	@Override
+	public void setLockTick(boolean lock) {
+		lockTick = lock;
+	}
+	
+	@Override
+	public void die() {
+		setLockTick(false);
+		super.die();
+	}
+
+	@Override
+	public CraftEntity getBukkitEntity() {
+		if (super.bukkitEntity == null) {
+			this.bukkitEntity = new CraftNMSItem(this.world.getServer(), this);
+	    }
+		return this.bukkitEntity;
+	}
+
+	@Override
+	public boolean isDeadNMS() {
+		return this.dead;
+	}
+	
+	@Override
+	public void killEntityNMS() {
+		die();
+	}
+	
+	@Override
+	public void setLocationNMS(double x, double y, double z) {
+		super.setPosition(x, y, z);
+	}
+
+	@Override
+	public void setItemStackNMS(org.bukkit.inventory.ItemStack stack) {
+		ItemStack newItem = CraftItemStack.asNMSCopy(stack);
+		
+		if (newItem == null) {
+			newItem = new ItemStack(Blocks.BEDROCK);
+		}
+		
+		if (newItem.getTag() == null) {
+			newItem.setTag(new NBTTagCompound());
+		}
+		NBTTagCompound display = newItem.getTag().getCompound("display");
+		
+		if (!newItem.getTag().hasKey("display")) {
+		newItem.getTag().set("display", display);
+		}
+		
+		NBTTagList tagList = new NBTTagList();
+		tagList.add(new NBTTagString(ItemUtils.ANTISTACK_LORE)); // Antistack lore
+		
+		display.set("Lore", tagList);
+		newItem.count = 0;
+		setItemStack(newItem);
+	}
+	
+	@Override
+	public int getIdNMS() {
+		return this.getId();
+	}
+	
+	@Override
+	public CraftItemLine getHologramLine() {
+		return parentPiece;
+	}
+	
+	@Override
+	public void allowPickup(boolean pickup) {
+		if (pickup) {
+			super.pickupDelay = 0;
+		} else {
+			super.pickupDelay = Integer.MAX_VALUE;
+		}
+	}
+	
+	@Override
+	public org.bukkit.entity.Entity getBukkitEntityNMS() {
+		return getBukkitEntity();
+	}
+	
+	@Override
+	public void setPassengerOfNMS(NMSEntityBase vehicleBase) {
+		if (vehicleBase == null || !(vehicleBase instanceof Entity)) {
+			// It should never dismount
+			return;
+		}
+		
+		Entity entity = (Entity) vehicleBase;
+		
+		try {
+			ReflectionUtils.setPrivateField(Entity.class, this, "ar", (double) 0.0);
+			ReflectionUtils.setPrivateField(Entity.class, this, "as", (double) 0.0);
+		} catch (Exception ex) {
+			DebugHandler.handleDebugException(ex);
+		}
+
+        if (this.vehicle != null) {
+        	this.vehicle.passenger = null;
+        }
+        
+        this.vehicle = entity;
+        entity.passenger = this;
+	}
+}

HolographicDisplays/Plugin/com/gmail/filoghost/holographicdisplays/nms/v1_8_R3/EntityNMSSlime.java

@@ -0,0 +1,192 @@
+package com.gmail.filoghost.holographicdisplays.nms.v1_8_R3;
+
+import net.minecraft.server.v1_8_R3.EntityDamageSource;
+import net.minecraft.server.v1_8_R3.EntityPlayer;
+import net.minecraft.server.v1_8_R3.AxisAlignedBB;
+import net.minecraft.server.v1_8_R3.DamageSource;
+import net.minecraft.server.v1_8_R3.Entity;
+import net.minecraft.server.v1_8_R3.EntitySlime;
+import net.minecraft.server.v1_8_R3.NBTTagCompound;
+import net.minecraft.server.v1_8_R3.World;
+
+import org.bukkit.Bukkit;
+import org.bukkit.craftbukkit.v1_8_R3.entity.CraftEntity;
+import org.bukkit.event.player.PlayerInteractEntityEvent;
+
+import com.gmail.filoghost.holographicdisplays.nms.interfaces.entity.NMSEntityBase;
+import com.gmail.filoghost.holographicdisplays.nms.interfaces.entity.NMSSlime;
+import com.gmail.filoghost.holographicdisplays.object.line.CraftHologramLine;
+import com.gmail.filoghost.holographicdisplays.object.line.CraftTouchSlimeLine;
+import com.gmail.filoghost.holographicdisplays.util.DebugHandler;
+import com.gmail.filoghost.holographicdisplays.util.ReflectionUtils;
+
+public class EntityNMSSlime extends EntitySlime implements NMSSlime {
+
+	private boolean lockTick;
+	private CraftTouchSlimeLine parentPiece;
+	
+	public EntityNMSSlime(World world, CraftTouchSlimeLine parentPiece) {
+		super(world);
+		super.persistent = true;
+		a(0.0F, 0.0F);
+		setSize(1);
+		setInvisible(true);
+		this.parentPiece = parentPiece;
+		forceSetBoundingBox(new NullBoundingBox());
+	}
+	
+	@Override
+	public void a(AxisAlignedBB boundingBox) {
+		// Do not change it!
+	}
+	
+	public void forceSetBoundingBox(AxisAlignedBB boundingBox) {
+		super.a(boundingBox);
+	}
+	
+	@Override
+	public void t_() {
+		// Checks every 20 ticks.
+		if (ticksLived % 20 == 0) {
+			// The slime dies without a vehicle.
+			if (this.vehicle == null) {
+				die();
+			}
+		}
+		
+		if (!lockTick) {
+			super.t_();
+		}
+	}
+	
+	@Override
+	public void b(NBTTagCompound nbttagcompound) {
+		// Do not save NBT.
+	}
+	
+	@Override
+	public boolean c(NBTTagCompound nbttagcompound) {
+		// Do not save NBT.
+		return false;
+	}
+
+	@Override
+	public boolean d(NBTTagCompound nbttagcompound) {
+		// Do not save NBT.
+		return false;
+	}
+	
+	@Override
+	public void e(NBTTagCompound nbttagcompound) {
+		// Do not save NBT.
+	}
+	
+	@Override
+	public boolean damageEntity(DamageSource damageSource, float amount) {
+		if (damageSource instanceof EntityDamageSource) {
+			EntityDamageSource entityDamageSource = (EntityDamageSource) damageSource;
+			if (entityDamageSource.getEntity() instanceof EntityPlayer) {
+				Bukkit.getPluginManager().callEvent(new PlayerInteractEntityEvent(((EntityPlayer) entityDamageSource.getEntity()).getBukkitEntity(), getBukkitEntity()));
+			}
+		}
+		return false;
+	}
+	
+	@Override
+	public boolean isInvulnerable(DamageSource source) {
+		/*
+		 * The field Entity.invulnerable is private.
+		 * It's only used while saving NBTTags, but since the entity would be killed
+		 * on chunk unload, we prefer to override isInvulnerable().
+		 */
+	    return true;
+	}
+
+	@Override
+	public void setCustomName(String customName) {
+		// Locks the custom name.
+	}
+	
+	@Override
+	public void setCustomNameVisible(boolean visible) {
+		// Locks the custom name.
+	}
+	
+	@Override
+	public void makeSound(String sound, float volume, float pitch) {
+	    // Remove sounds.
+	}
+	
+	@Override
+	public void setLockTick(boolean lock) {
+		lockTick = lock;
+	}
+	
+	@Override
+	public void die() {
+		setLockTick(false);
+		super.die();
+	}
+	
+	@Override
+	public CraftEntity getBukkitEntity() {
+		if (super.bukkitEntity == null) {
+			this.bukkitEntity = new CraftNMSSlime(this.world.getServer(), this);
+	    }
+		return this.bukkitEntity;
+	}
+
+	@Override
+	public boolean isDeadNMS() {
+		return super.dead;
+	}
+	
+	@Override
+	public void killEntityNMS() {
+		die();
+	}
+	
+	@Override
+	public void setLocationNMS(double x, double y, double z) {
+		super.setPosition(x, y, z);
+	}
+	
+	@Override
+	public int getIdNMS() {
+		return this.getId();
+	}
+	
+	@Override
+	public CraftHologramLine getHologramLine() {
+		return parentPiece;
+	}
+
+	@Override
+	public org.bukkit.entity.Entity getBukkitEntityNMS() {
+		return getBukkitEntity();
+	}
+	
+	@Override
+	public void setPassengerOfNMS(NMSEntityBase vehicleBase) {
+		if (vehicleBase == null || !(vehicleBase instanceof Entity)) {
+			// It should never dismount
+			return;
+		}
+		
+		Entity entity = (Entity) vehicleBase;
+		
+		try {
+			ReflectionUtils.setPrivateField(Entity.class, this, "ar", (double) 0.0);
+			ReflectionUtils.setPrivateField(Entity.class, this, "as", (double) 0.0);
+		} catch (Exception ex) {
+			DebugHandler.handleDebugException(ex);
+		}
+
+        if (this.vehicle != null) {
+        	this.vehicle.passenger = null;
+        }
+        
+        this.vehicle = entity;
+        entity.passenger = this;
+	}
+}

HolographicDisplays/Plugin/com/gmail/filoghost/holographicdisplays/nms/v1_8_R3/FancyMessageImpl.java

@@ -0,0 +1,170 @@
+package com.gmail.filoghost.holographicdisplays.nms.v1_8_R3;
+
+import java.io.IOException;
+import java.io.StringWriter;
+import java.util.ArrayList;
+import java.util.List;
+
+import net.minecraft.server.v1_8_R3.IChatBaseComponent;
+import net.minecraft.server.v1_8_R3.PacketPlayOutChat;
+
+import org.bukkit.ChatColor;
+
+import com.google.gson.stream.JsonWriter;
+
+import org.bukkit.craftbukkit.v1_8_R3.entity.CraftPlayer;
+import org.bukkit.entity.Player;
+
+import com.gmail.filoghost.holographicdisplays.nms.interfaces.FancyMessage;
+
+public class FancyMessageImpl implements FancyMessage {
+	
+	private List<MessagePart> messageParts;
+	
+	public FancyMessageImpl(String firstPartText) {
+		messageParts = new ArrayList<MessagePart>();
+		messageParts.add(new MessagePart(firstPartText));
+	}
+	
+	@Override
+	public FancyMessageImpl color(ChatColor color) {
+		if (!color.isColor()) {
+			throw new IllegalArgumentException(color.name() + " is not a color");
+		}
+		latest().color = color;
+		return this;
+	}
+	
+	@Override
+	public FancyMessageImpl style(ChatColor... styles) {
+		for (ChatColor style : styles) {
+			if (!style.isFormat()) {
+				throw new IllegalArgumentException(style.name() + " is not a style");
+			}
+		}
+		latest().styles = styles;
+		return this;
+	}
+	
+	@Override
+	public FancyMessageImpl file(String path) {
+		onClick("open_file", path);
+		return this;
+	}
+	
+	@Override
+	public FancyMessageImpl link(String url) {
+		onClick("open_url", url);
+		return this;
+	}
+	
+	@Override
+	public FancyMessageImpl suggest(String command) {
+		onClick("suggest_command", command);
+		return this;
+	}
+	
+	@Override
+	public FancyMessageImpl command(String command) {
+		onClick("run_command", command);
+		return this;
+	}
+	
+	@Override
+	public FancyMessageImpl tooltip(String text) {
+		onHover("show_text", text);
+		return this;
+	}
+
+	@Override
+	public FancyMessageImpl then(Object obj) {
+		messageParts.add(new MessagePart(obj.toString()));
+		return this;
+	}
+	
+	@Override
+	public String toJSONString() {
+		StringWriter stringWriter = new StringWriter();
+		JsonWriter json = new JsonWriter(stringWriter);
+		
+		try {
+			if (messageParts.size() == 1) {
+				latest().writeJson(json);
+			} else {
+				json.beginObject().name("text").value("").name("extra").beginArray();
+				for (MessagePart part : messageParts) {
+					part.writeJson(json);
+				}
+				json.endArray().endObject();
+			}
+			
+		} catch (IOException e) {
+			throw new RuntimeException("invalid message");
+		}
+		return stringWriter.toString();
+	}
+	
+	@Override
+	public void send(Player player) {
+		((CraftPlayer) player).getHandle().playerConnection.sendPacket(new PacketPlayOutChat(IChatBaseComponent.ChatSerializer.a(toJSONString())));
+	}
+	
+	private MessagePart latest() {
+		return messageParts.get(messageParts.size() - 1);
+	}
+	
+	private void onClick(String name, String data) {
+		MessagePart latest = latest();
+		latest.clickActionName = name;
+		latest.clickActionData = data;
+	}
+	
+	private void onHover(String name, String data) {
+		MessagePart latest = latest();
+		latest.hoverActionName = name;
+		latest.hoverActionData = data;
+	}
+	
+	static class MessagePart {
+
+		public ChatColor color = null;
+		public ChatColor[] styles = null;
+		public String clickActionName = null;
+		public String clickActionData = null;
+		public String hoverActionName = null;
+		public String hoverActionData = null;
+		public final String text;
+		
+		public MessagePart(final String text) {
+			this.text = text;
+		}
+		
+		public JsonWriter writeJson(final JsonWriter json) throws IOException {
+			json.beginObject().name("text").value(text);
+			if (color != null) {
+				json.name("color").value(color.name().toLowerCase());
+			}
+			if (styles != null) {
+				for (final ChatColor style : styles) {
+					json.name(style == ChatColor.UNDERLINE ? "underlined" : style.name().toLowerCase()).value(true);
+				}
+			}
+			if (clickActionName != null && clickActionData != null) {
+				json.name("clickEvent")
+					.beginObject()
+						.name("action").value(clickActionName)
+						.name("value").value(clickActionData)
+					.endObject();
+			}
+			if (hoverActionName != null && hoverActionData != null) {
+				json.name("hoverEvent")
+					.beginObject()
+						.name("action").value(hoverActionName)
+						.name("value").value(hoverActionData)
+					.endObject();
+			}
+			return json.endObject();
+		}
+		
+	}
+}

HolographicDisplays/Plugin/com/gmail/filoghost/holographicdisplays/nms/v1_8_R3/NmsManagerImpl.java

@@ -0,0 +1,161 @@
+package com.gmail.filoghost.holographicdisplays.nms.v1_8_R3;
+
+import java.lang.reflect.Method;
+
+import net.minecraft.server.v1_8_R3.Entity;
+import net.minecraft.server.v1_8_R3.EntityTypes;
+import net.minecraft.server.v1_8_R3.MathHelper;
+import net.minecraft.server.v1_8_R3.World;
+import net.minecraft.server.v1_8_R3.WorldServer;
+
+import org.apache.commons.lang.NotImplementedException;
+import org.bukkit.Bukkit;
+import org.bukkit.craftbukkit.v1_8_R3.CraftWorld;
+import org.bukkit.craftbukkit.v1_8_R3.entity.CraftEntity;
+import org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason;
+import org.bukkit.inventory.ItemStack;
+
+import com.gmail.filoghost.holographicdisplays.nms.interfaces.FancyMessage;
+import com.gmail.filoghost.holographicdisplays.nms.interfaces.NMSManager;
+import com.gmail.filoghost.holographicdisplays.nms.interfaces.entity.NMSArmorStand;
+import com.gmail.filoghost.holographicdisplays.nms.interfaces.entity.NMSEntityBase;
+import com.gmail.filoghost.holographicdisplays.nms.interfaces.entity.NMSHorse;
+import com.gmail.filoghost.holographicdisplays.nms.interfaces.entity.NMSItem;
+import com.gmail.filoghost.holographicdisplays.nms.interfaces.entity.NMSWitherSkull;
+import com.gmail.filoghost.holographicdisplays.object.line.CraftHologramLine;
+import com.gmail.filoghost.holographicdisplays.object.line.CraftItemLine;
+import com.gmail.filoghost.holographicdisplays.object.line.CraftTouchSlimeLine;
+import com.gmail.filoghost.holographicdisplays.util.DebugHandler;
+import com.gmail.filoghost.holographicdisplays.util.ReflectionUtils;
+import com.gmail.filoghost.holographicdisplays.util.Validator;
+import com.gmail.filoghost.holographicdisplays.util.VersionUtils;
+
+public class NmsManagerImpl implements NMSManager {
+
+	private Method validateEntityMethod;
+	
+	@Override
+	public void setup() throws Exception {
+		registerCustomEntity(EntityNMSArmorStand.class, "ArmorStand", 30);
+		registerCustomEntity(EntityNMSItem.class, "Item", 1);
+		registerCustomEntity(EntityNMSSlime.class, "Slime", 55);
+		
+		if (!VersionUtils.isMCPCOrCauldron()) {
+			validateEntityMethod = World.class.getDeclaredMethod("a", Entity.class);
+			validateEntityMethod.setAccessible(true);
+		}
+	}
+	
+	@SuppressWarnings("rawtypes")
+	public void registerCustomEntity(Class entityClass, String name, int id) throws Exception {
+		if (VersionUtils.isMCPCOrCauldron()) {
+			// MCPC+ / Cauldron entity registration.
+			Class<?> entityTypesClass = Class.forName("net.minecraft.server.v1_8_R3.EntityTypes");
+			ReflectionUtils.putInPrivateStaticMap(entityTypesClass, "field_75626_c", entityClass, name);
+			ReflectionUtils.putInPrivateStaticMap(entityTypesClass, "field_75624_e", entityClass, Integer.valueOf(id));
+		} else {
+			// Normal entity registration.
+			ReflectionUtils.putInPrivateStaticMap(EntityTypes.class, "d", entityClass, name);
+			ReflectionUtils.putInPrivateStaticMap(EntityTypes.class, "f", entityClass, Integer.valueOf(id));
+		}
+	}
+	
+	@Override
+	public NMSHorse spawnNMSHorse(org.bukkit.World world, double x, double y, double z, CraftHologramLine parentPiece) {
+		throw new NotImplementedException("Method can only be used on 1.7 or lower");
+	}
+	
+	@Override
+	public NMSWitherSkull spawnNMSWitherSkull(org.bukkit.World bukkitWorld, double x, double y, double z, CraftHologramLine parentPiece) {
+		throw new NotImplementedException("Method can only be used on 1.7 or lower");
+	}
+	
+	@Override
+	public NMSItem spawnNMSItem(org.bukkit.World bukkitWorld, double x, double y, double z, CraftItemLine parentPiece, ItemStack stack) {
+		WorldServer nmsWorld = ((CraftWorld) bukkitWorld).getHandle();
+		EntityNMSItem customItem = new EntityNMSItem(nmsWorld, parentPiece);
+		customItem.setLocationNMS(x, y, z);
+		customItem.setItemStackNMS(stack);
+		if (!addEntityToWorld(nmsWorld, customItem)) {
+			DebugHandler.handleSpawnFail(parentPiece);
+		}
+		return customItem;
+	}
+	
+	@Override
+	public EntityNMSSlime spawnNMSSlime(org.bukkit.World bukkitWorld, double x, double y, double z, CraftTouchSlimeLine parentPiece) {
+		WorldServer nmsWorld = ((CraftWorld) bukkitWorld).getHandle();
+		EntityNMSSlime touchSlime = new EntityNMSSlime(nmsWorld, parentPiece);
+		touchSlime.setLocationNMS(x, y, z);
+		if (!addEntityToWorld(nmsWorld, touchSlime)) {
+			DebugHandler.handleSpawnFail(parentPiece);
+		}
+		return touchSlime;
+	}
+	
+	@Override
+	public NMSArmorStand spawnNMSArmorStand(org.bukkit.World world, double x, double y, double z, CraftHologramLine parentPiece) {
+		WorldServer nmsWorld = ((CraftWorld) world).getHandle();
+		EntityNMSArmorStand invisibleArmorStand = new EntityNMSArmorStand(nmsWorld, parentPiece);
+		invisibleArmorStand.setLocationNMS(x, y, z);
+		if (!addEntityToWorld(nmsWorld, invisibleArmorStand)) {
+			DebugHandler.handleSpawnFail(parentPiece);
+		}
+		return invisibleArmorStand;
+	}
+	
+	private boolean addEntityToWorld(WorldServer nmsWorld, Entity nmsEntity) {
+		Validator.isTrue(Bukkit.isPrimaryThread(), "Async entity add");
+		
+		if (validateEntityMethod == null) {
+			return nmsWorld.addEntity(nmsEntity, SpawnReason.CUSTOM);
+		}
+		
+        final int chunkX = MathHelper.floor(nmsEntity.locX / 16.0);
+        final int chunkZ = MathHelper.floor(nmsEntity.locZ / 16.0);
+        
+        if (!nmsWorld.chunkProviderServer.isChunkLoaded(chunkX, chunkZ)) {
+        	// This should never happen
+            nmsEntity.dead = true;
+            return false;
+        }
+        
+        nmsWorld.getChunkAt(chunkX, chunkZ).a(nmsEntity);
+        nmsWorld.entityList.add(nmsEntity);
+        
+        try {
+			validateEntityMethod.invoke(nmsWorld, nmsEntity);
+		} catch (Exception e) {
+			e.printStackTrace();
+			return false;
+		}
+        return true;
+    }
+	
+	@Override
+	public boolean isNMSEntityBase(org.bukkit.entity.Entity bukkitEntity) {
+		return ((CraftEntity) bukkitEntity).getHandle() instanceof NMSEntityBase;
+	}
+
+	@Override
+	public NMSEntityBase getNMSEntityBase(org.bukkit.entity.Entity bukkitEntity) {
+		
+		Entity nmsEntity = ((CraftEntity) bukkitEntity).getHandle();
+		if (nmsEntity instanceof NMSEntityBase) {
+			return ((NMSEntityBase) nmsEntity);
+		}
+
+		return null;
+	}
+
+	@Override
+	public FancyMessage newFancyMessage(String text) {
+		return new FancyMessageImpl(text);
+	}
+
+	@Override
+	public boolean hasChatHoverFeature() {
+		return true;
+	}
+	
+}

HolographicDisplays/Plugin/com/gmail/filoghost/holographicdisplays/nms/v1_8_R3/NullBoundingBox.java

@@ -0,0 +1,75 @@
+package com.gmail.filoghost.holographicdisplays.nms.v1_8_R3;
+
+import net.minecraft.server.v1_8_R3.AxisAlignedBB;
+import net.minecraft.server.v1_8_R3.MovingObjectPosition;
+import net.minecraft.server.v1_8_R3.Vec3D;
+
+public class NullBoundingBox extends AxisAlignedBB {
+
+	public NullBoundingBox() {
+		super(0, 0, 0, 0, 0, 0);
+	}
+
+	@Override
+	public double a() {
+		return 0.0;
+	}
+
+	@Override
+	public double a(AxisAlignedBB arg0, double arg1) {
+		return 0.0;
+	}
+
+	@Override
+	public AxisAlignedBB a(AxisAlignedBB arg0) {
+		return this;
+	}
+
+	@Override
+	public AxisAlignedBB a(double arg0, double arg1, double arg2) {
+		return this;
+	}
+
+	@Override
+	public MovingObjectPosition a(Vec3D arg0, Vec3D arg1) {
+		return super.a(arg0, arg1);
+	}
+
+	@Override
+	public boolean a(Vec3D arg0) {
+		return false;
+	}
+
+	@Override
+	public double b(AxisAlignedBB arg0, double arg1) {
+		return 0.0;
+	}
+
+	@Override
+	public boolean b(AxisAlignedBB arg0) {
+		return false;
+	}
+
+	@Override
+	public double c(AxisAlignedBB arg0, double arg1) {
+		return 0.0;
+	}
+
+	@Override
+	public AxisAlignedBB c(double arg0, double arg1, double arg2) {
+		return this;
+	}
+
+	@Override
+	public AxisAlignedBB grow(double arg0, double arg1, double arg2) {
+		return this;
+	}
+
+	@Override
+	public AxisAlignedBB shrink(double arg0, double arg1, double arg2) {
+		return this;
+	}
+
+	
+
+}

HolographicDisplays/plugin.yml

@@ -1,6 +1,6 @@
 name: HolographicDisplays
 main: com.gmail.filoghost.holographicdisplays.HolographicDisplays
-version: 2.1.9
+version: 2.1.10
 
 softdepend: [Multiverse-Core, MultiWorld, My Worlds, My_Worlds, ProtocolLib]