Paper/nms-patches/EntityPlayer.patch

--- a/net/minecraft/server/EntityPlayer.java
+++ b/net/minecraft/server/EntityPlayer.java
@@ -15,11 +15,29 @@
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
 
+// CraftBukkit start
+import com.google.common.base.Preconditions;
+import org.bukkit.Bukkit;
+import org.bukkit.GameMode;
+import org.bukkit.Location;
+import org.bukkit.WeatherType;
+import org.bukkit.craftbukkit.CraftWorld;
+import org.bukkit.craftbukkit.entity.CraftPlayer;
+import org.bukkit.craftbukkit.event.CraftEventFactory;
+import org.bukkit.craftbukkit.inventory.CraftItemStack;
+import org.bukkit.event.inventory.InventoryType;
+import org.bukkit.event.player.PlayerChangedMainHandEvent;
+import org.bukkit.event.player.PlayerGameModeChangeEvent;
+import org.bukkit.event.player.PlayerLocaleChangeEvent;
+import org.bukkit.event.player.PlayerTeleportEvent.TeleportCause;
+import org.bukkit.inventory.MainHand;
+// CraftBukkit end
+
 public class EntityPlayer extends EntityHuman implements ICrafting {
 
     private static final Logger cc = LogManager.getLogger();
     private static final IChatBaseComponent cd = (new ChatMessage("multiplayer.message_not_delivered", new Object[0])).a(EnumChatFormat.RED);
-    public String locale = "en_US";
+    public String locale = "en_us"; // CraftBukkit - lowercase
     public PlayerConnection playerConnection;
     public final MinecraftServer server;
     public final PlayerInteractManager playerInteractManager;
@@ -55,6 +73,19 @@
     public int ping;
     public boolean viewingCredits;
 
+    // CraftBukkit start
+    public String displayName;
+    public IChatBaseComponent listName;
+    public org.bukkit.Location compassTarget;
+    public int newExp = 0;
+    public int newLevel = 0;
+    public int newTotalExp = 0;
+    public boolean keepLevel = false;
+    public double maxHealthCache;
+    public boolean joining = true;
+    public boolean sentListPacket = false;
+    // CraftBukkit end
+
     public EntityPlayer(MinecraftServer minecraftserver, WorldServer worldserver, GameProfile gameprofile, PlayerInteractManager playerinteractmanager) {
         super((World) worldserver, gameprofile);
         playerinteractmanager.player = this;
@@ -65,7 +96,49 @@
         this.cg = minecraftserver.getPlayerList().h(this);
         this.Q = 1.0F;
         this.a(worldserver);
+
+        // CraftBukkit start
+        this.displayName = this.getName();
+        this.canPickUpLoot = true;
+        this.maxHealthCache = this.getMaxHealth();
+    }
+
+    // Yes, this doesn't match Vanilla, but it's the best we can do for now.
+    // If this is an issue, PRs are welcome
+    public final BlockPosition getSpawnPoint(WorldServer worldserver) {
+        BlockPosition blockposition = worldserver.getSpawn();
+
+        if (worldserver.worldProvider.g() && worldserver.getWorldData().getGameType() != EnumGamemode.ADVENTURE) {
+            int i = Math.max(0, this.server.a(worldserver));
+            int j = MathHelper.floor(worldserver.getWorldBorder().b((double) blockposition.getX(), (double) blockposition.getZ()));
+
+            if (j < i) {
+                i = j;
+            }
+
+            if (j <= 1) {
+                i = 1;
+            }
+
+            int k = (i * 2 + 1) * (i * 2 + 1);
+            int l = this.s(k);
+            int i1 = (new Random()).nextInt(k);
+
+            for (int j1 = 0; j1 < k; ++j1) {
+                int k1 = (i1 + l * j1) % k;
+                int l1 = k1 % (i * 2 + 1);
+                int i2 = k1 / (i * 2 + 1);
+                BlockPosition blockposition1 = worldserver.o().a(blockposition.getX() + l1 - i, blockposition.getZ() + i2 - i, false);
+
+                if (blockposition1 != null) {
+                    return blockposition1;
+                }
+            }
+        }
+
+        return blockposition;
     }
+    // CraftBukkit end
 
     private void a(WorldServer worldserver) {
         BlockPosition blockposition = worldserver.getSpawn();
@@ -133,6 +206,7 @@
         if (nbttagcompound.hasKeyOfType("recipeBook", 10)) {
             this.cz.a(nbttagcompound.getCompound("recipeBook"));
         }
+        this.getBukkitEntity().readExtraData(nbttagcompound); // CraftBukkit
 
     }
 
@@ -163,8 +237,34 @@
         }
 
         nbttagcompound.set("recipeBook", this.cz.e());
+        this.getBukkitEntity().setExtraData(nbttagcompound); // CraftBukkit
     }
 
+    // CraftBukkit start - World fallback code, either respawn location or global spawn
+    public void spawnIn(World world) {
+        super.spawnIn(world);
+        if (world == null) {
+            this.dead = false;
+            BlockPosition position = null;
+            if (this.spawnWorld != null && !this.spawnWorld.equals("")) {
+                CraftWorld cworld = (CraftWorld) Bukkit.getServer().getWorld(this.spawnWorld);
+                if (cworld != null && this.getBed() != null) {
+                    world = cworld.getHandle();
+                    position = EntityHuman.getBed(cworld.getHandle(), this.getBed(), false);
+                }
+            }
+            if (world == null || position == null) {
+                world = ((CraftWorld) Bukkit.getServer().getWorlds().get(0)).getHandle();
+                position = world.getSpawn();
+            }
+            this.world = world;
+            this.setPosition(position.getX() + 0.5, position.getY(), position.getZ() + 0.5);
+        }
+        this.dimension = ((WorldServer) this.world).dimension;
+        this.playerInteractManager.a((WorldServer) world);
+    }
+    // CraftBukkit end
+
     public void a(int i) {
         float f = (float) this.getExpToLevel();
         float f1 = (f - 1.0F) / f;
@@ -211,6 +311,11 @@
     }
 
     public void tick() {
+        // CraftBukkit start
+        if (this.joining) {
+            this.joining = false;
+        }
+        // CraftBukkit end
         this.playerInteractManager.a();
         --this.invulnerableTicks;
         if (this.noDamageTicks > 0) {
@@ -276,7 +381,7 @@
             }
 
             if (this.getHealth() != this.lastHealthSent || this.cp != this.foodData.getFoodLevel() || this.foodData.getSaturationLevel() == 0.0F != this.cq) {
-                this.playerConnection.sendPacket(new PacketPlayOutUpdateHealth(this.getHealth(), this.foodData.getFoodLevel(), this.foodData.getSaturationLevel()));
+                this.playerConnection.sendPacket(new PacketPlayOutUpdateHealth(this.getBukkitEntity().getScaledHealth(), this.foodData.getFoodLevel(), this.foodData.getSaturationLevel())); // CraftBukkit
                 this.lastHealthSent = this.getHealth();
                 this.cp = this.foodData.getFoodLevel();
                 this.cq = this.foodData.getSaturationLevel() == 0.0F;
@@ -307,6 +412,12 @@
                 this.a(IScoreboardCriteria.k, MathHelper.f((float) this.cn));
             }
 
+            // CraftBukkit start - Force max health updates
+            if (this.maxHealthCache != this.getMaxHealth()) {
+                this.getBukkitEntity().updateScaledHealth();
+            }
+            // CraftBukkit end
+
             if (this.expLevel != this.cm) {
                 this.cm = this.expLevel;
                 this.a(IScoreboardCriteria.l, MathHelper.f((float) this.cm));
@@ -321,6 +432,16 @@
                 CriterionTriggers.p.a(this);
             }
 
+            // CraftBukkit start - initialize oldLevel and fire PlayerLevelChangeEvent
+            if (this.oldLevel == -1) {
+                this.oldLevel = this.expLevel;
+            }
+
+            if (this.oldLevel != this.expLevel) {
+                CraftEventFactory.callPlayerLevelChangeEvent(this.world.getServer().getPlayer((EntityPlayer) this), this.oldLevel, this.expLevel);
+                this.oldLevel = this.expLevel;
+            }
+            // CraftBukkit end
         } catch (Throwable throwable) {
             CrashReport crashreport = CrashReport.a(throwable, "Ticking player");
             CrashReportSystemDetails crashreportsystemdetails = crashreport.a("Player being ticked");
@@ -331,7 +452,8 @@
     }
 
     private void a(IScoreboardCriteria iscoreboardcriteria, int i) {
-        this.getScoreboard().getObjectivesForCriteria(iscoreboardcriteria, this.getName(), (scoreboardscore) -> {
+        // CraftBukkit - Use our scores instead
+        this.world.getServer().getScoreboardManager().getScoreboardScores(iscoreboardcriteria, this.getName(), (scoreboardscore) -> {
             scoreboardscore.setScore(i);
         });
     }
@@ -340,27 +462,59 @@
         boolean flag = this.world.getGameRules().getBoolean("showDeathMessages");
 
         this.playerConnection.sendPacket(new PacketPlayOutCombatEvent(this.getCombatTracker(), PacketPlayOutCombatEvent.EnumCombatEventType.ENTITY_DIED, flag));
-        if (flag) {
-            ScoreboardTeamBase scoreboardteambase = this.be();
+        // CraftBukkit start - fire PlayerDeathEvent
+        if (this.dead) {
+            return;
+        }
+        java.util.List<org.bukkit.inventory.ItemStack> loot = new java.util.ArrayList<org.bukkit.inventory.ItemStack>(this.inventory.getSize());
+        boolean keepInventory = this.world.getGameRules().getBoolean("keepInventory") || this.isSpectator();
+
+        if (!keepInventory) {
+            for (ItemStack item : this.inventory.getContents()) {
+                if (!item.isEmpty() && !EnchantmentManager.shouldNotDrop(item)) {
+                    loot.add(CraftItemStack.asCraftMirror(item));
+                }
+            }
+        }
 
-            if (scoreboardteambase != null && scoreboardteambase.getDeathMessageVisibility() != ScoreboardTeamBase.EnumNameTagVisibility.ALWAYS) {
-                if (scoreboardteambase.getDeathMessageVisibility() == ScoreboardTeamBase.EnumNameTagVisibility.HIDE_FOR_OTHER_TEAMS) {
-                    this.server.getPlayerList().a((EntityHuman) this, this.getCombatTracker().getDeathMessage());
-                } else if (scoreboardteambase.getDeathMessageVisibility() == ScoreboardTeamBase.EnumNameTagVisibility.HIDE_FOR_OWN_TEAM) {
-                    this.server.getPlayerList().b((EntityHuman) this, this.getCombatTracker().getDeathMessage());
+        IChatBaseComponent chatmessage = this.getCombatTracker().getDeathMessage();
+
+        String deathmessage = chatmessage.getString();
+        org.bukkit.event.entity.PlayerDeathEvent event = CraftEventFactory.callPlayerDeathEvent(this, loot, deathmessage, keepInventory);
+
+        String deathMessage = event.getDeathMessage();
+
+        if (deathMessage != null && deathMessage.length() > 0 && flag) { // TODO: allow plugins to override?
+            if (deathMessage.equals(deathmessage)) {
+                ScoreboardTeamBase scoreboardteambase = this.be();
+
+                if (scoreboardteambase != null && scoreboardteambase.getDeathMessageVisibility() != ScoreboardTeamBase.EnumNameTagVisibility.ALWAYS) {
+                    if (scoreboardteambase.getDeathMessageVisibility() == ScoreboardTeamBase.EnumNameTagVisibility.HIDE_FOR_OTHER_TEAMS) {
+                        this.server.getPlayerList().a((EntityHuman) this, chatmessage);
+                    } else if (scoreboardteambase.getDeathMessageVisibility() == ScoreboardTeamBase.EnumNameTagVisibility.HIDE_FOR_OWN_TEAM) {
+                        this.server.getPlayerList().b((EntityHuman) this, chatmessage);
+                    }
+                } else {
+                    this.server.getPlayerList().sendMessage(chatmessage);
                 }
             } else {
-                this.server.getPlayerList().sendMessage(this.getCombatTracker().getDeathMessage());
+                this.server.getPlayerList().sendMessage(org.bukkit.craftbukkit.util.CraftChatMessage.fromString(deathMessage));
             }
         }
 
         this.releaseShoulderEntities();
-        if (!this.world.getGameRules().getBoolean("keepInventory") && !this.isSpectator()) {
-            this.dj();
-            this.inventory.q();
+        // we clean the player's inventory after the EntityDeathEvent is called so plugins can get the exact state of the inventory.
+        if (!event.getKeepInventory()) {
+            this.inventory.clear();
         }
 
-        this.getScoreboard().getObjectivesForCriteria(IScoreboardCriteria.d, this.getName(), ScoreboardScore::incrementScore);
+        this.closeInventory();
+        this.setSpectatorTarget(this); // Remove spectated target
+        // CraftBukkit end
+
+        // CraftBukkit - Get our scores instead
+        this.world.getServer().getScoreboardManager().getScoreboardScores(IScoreboardCriteria.d, this.getName(), ScoreboardScore::incrementScore);
+
         EntityLiving entityliving = this.cv();
 
         if (entityliving != null) {
@@ -383,10 +537,12 @@
             String s = this.getName();
             String s1 = entity.getName();
 
-            this.getScoreboard().getObjectivesForCriteria(IScoreboardCriteria.f, s, ScoreboardScore::incrementScore);
+            // CraftBukkit - Get our scores instead
+            this.world.getServer().getScoreboardManager().getScoreboardScores(IScoreboardCriteria.f, s, ScoreboardScore::incrementScore);
             if (entity instanceof EntityHuman) {
                 this.a(StatisticList.PLAYER_KILLS);
-                this.getScoreboard().getObjectivesForCriteria(IScoreboardCriteria.e, s, ScoreboardScore::incrementScore);
+                // CraftBukkit - Get our scores instead
+                this.world.getServer().getScoreboardManager().getScoreboardScores(IScoreboardCriteria.e, s, ScoreboardScore::incrementScore);
             } else {
                 this.a(StatisticList.MOB_KILLS);
             }
@@ -404,7 +560,8 @@
             int i = scoreboardteam.getColor().b();
 
             if (i >= 0 && i < aiscoreboardcriteria.length) {
-                this.getScoreboard().getObjectivesForCriteria(aiscoreboardcriteria[i], s, ScoreboardScore::incrementScore);
+                // CraftBukkit - Get our scores instead
+                this.world.getServer().getScoreboardManager().getScoreboardScores(aiscoreboardcriteria[i], s, ScoreboardScore::incrementScore);
             }
         }
 
@@ -445,12 +602,14 @@
     }
 
     private boolean canPvP() {
-        return this.server.getPVP();
+        // CraftBukkit - this.server.getPvP() -> this.world.pvpMode
+        return this.world.pvpMode;
     }
 
     @Nullable
     public Entity d(int i) {
-        this.worldChangeInvuln = true;
+        if (this.isSleeping()) return this; // CraftBukkit - SPIGOT-3154
+        // this.worldChangeInvuln = true; // CraftBukkit - Moved down and into PlayerList#changeDimension
         if (this.dimension == 0 && i == -1) {
             this.cD = new Vec3D(this.locX, this.locY, this.locZ);
         } else if (this.dimension != -1 && i != 0) {
@@ -458,6 +617,7 @@
         }
 
         if (this.dimension == 1 && i == 1) {
+            this.worldChangeInvuln = true; // CraftBukkit - Moved down from above
             this.world.kill(this);
             if (!this.viewingCredits) {
                 this.viewingCredits = true;
@@ -471,7 +631,10 @@
                 i = 1;
             }
 
-            this.server.getPlayerList().a(this, i);
+            // CraftBukkit start
+            TeleportCause cause = (this.dimension == 1 || i == 1) ? TeleportCause.END_PORTAL : TeleportCause.NETHER_PORTAL;
+            this.server.getPlayerList().changeDimension(this, i, cause); // PAIL: check all this
+            // CraftBukkit end
             this.playerConnection.sendPacket(new PacketPlayOutWorldEvent(1032, BlockPosition.ZERO, 0, false));
             this.lastSentExp = -1;
             this.lastHealthSent = -1.0F;
@@ -517,6 +680,7 @@
     }
 
     public void a(boolean flag, boolean flag1, boolean flag2) {
+        if (!this.sleeping) return; // CraftBukkit - Can't leave bed if not in one!
         if (this.isSleeping()) {
             this.getWorldServer().getTracker().sendPacketToEntity(this, new PacketPlayOutAnimation(this, 2));
         }
@@ -595,23 +759,55 @@
         this.playerConnection.sendPacket(new PacketPlayOutOpenSignEditor(tileentitysign.getPosition()));
     }
 
-    public void nextContainerCounter() {
+    public int nextContainerCounter() { // CraftBukkit - void -> int
         this.containerCounter = this.containerCounter % 100 + 1;
+        return containerCounter; // CraftBukkit
     }
 
     public void openTileEntity(ITileEntityContainer itileentitycontainer) {
-        if (itileentitycontainer instanceof ILootable && ((ILootable) itileentitycontainer).Q_() != null && this.isSpectator()) {
+        // CraftBukkit start - Inventory open hook
+        if (false && itileentitycontainer instanceof ILootable && ((ILootable) itileentitycontainer).Q_() != null && this.isSpectator()) {
             this.a((new ChatMessage("container.spectatorCantOpen", new Object[0])).a(EnumChatFormat.RED), true);
         } else {
+            boolean cancelled = itileentitycontainer instanceof ILootable && ((ILootable) itileentitycontainer).Q_() != null && this.isSpectator();
+            Container container = CraftEventFactory.callInventoryOpenEvent(this, itileentitycontainer.createContainer(this.inventory, this), cancelled);
+            if (container == null) {
+                return;
+            }
             this.nextContainerCounter();
+            this.activeContainer = container;
             this.playerConnection.sendPacket(new PacketPlayOutOpenWindow(this.containerCounter, itileentitycontainer.getContainerName(), itileentitycontainer.getScoreboardDisplayName()));
-            this.activeContainer = itileentitycontainer.createContainer(this.inventory, this);
+            // CraftBukkit end
             this.activeContainer.windowId = this.containerCounter;
             this.activeContainer.addSlotListener(this);
         }
     }
 
     public void openContainer(IInventory iinventory) {
+        // CraftBukkit start - Inventory open hook
+        // Copied from below
+        boolean cancelled = false;
+        if (iinventory instanceof ITileInventory) {
+            ITileInventory itileinventory = (ITileInventory) iinventory;
+            cancelled = itileinventory.isLocked() && !this.a(itileinventory.getLock()) && !this.isSpectator();
+        }
+
+        Container container;
+        if (iinventory instanceof ITileEntityContainer) {
+            if (iinventory instanceof TileEntity) {
+                Preconditions.checkArgument(((TileEntity) iinventory).getWorld() != null, "Container must have world to be opened");
+            }
+            container = ((ITileEntityContainer) iinventory).createContainer(this.inventory, this);
+        } else {
+            container = new ContainerChest(this.inventory, iinventory, this);
+        }
+        container = CraftEventFactory.callInventoryOpenEvent(this, container, cancelled);
+        if (container == null && !cancelled) { // Let pre-cancelled events fall through
+            iinventory.closeContainer(this);
+            return;
+        }
+        // CraftBukkit end
+
         if (iinventory instanceof ILootable && ((ILootable) iinventory).Q_() != null && this.isSpectator()) {
             this.a((new ChatMessage("container.spectatorCantOpen", new Object[0])).a(EnumChatFormat.RED), true);
         } else {
@@ -625,18 +821,21 @@
                 if (itileinventory.isLocked() && !this.a(itileinventory.getLock()) && !this.isSpectator()) {
                     this.playerConnection.sendPacket(new PacketPlayOutChat(new ChatMessage("container.isLocked", new Object[] { iinventory.getScoreboardDisplayName()}), ChatMessageType.GAME_INFO));
                     this.playerConnection.sendPacket(new PacketPlayOutNamedSoundEffect(SoundEffects.BLOCK_CHEST_LOCKED, SoundCategory.BLOCKS, this.locX, this.locY, this.locZ, 1.0F, 1.0F));
+                    iinventory.closeContainer(this); // CraftBukkit
                     return;
                 }
             }
 
             this.nextContainerCounter();
+            // CraftBukkit start
             if (iinventory instanceof ITileEntityContainer) {
+                this.activeContainer = container;
                 this.playerConnection.sendPacket(new PacketPlayOutOpenWindow(this.containerCounter, ((ITileEntityContainer) iinventory).getContainerName(), iinventory.getScoreboardDisplayName(), iinventory.getSize()));
-                this.activeContainer = ((ITileEntityContainer) iinventory).createContainer(this.inventory, this);
             } else {
+                this.activeContainer = container;
                 this.playerConnection.sendPacket(new PacketPlayOutOpenWindow(this.containerCounter, "minecraft:container", iinventory.getScoreboardDisplayName(), iinventory.getSize()));
-                this.activeContainer = new ContainerChest(this.inventory, iinventory, this);
             }
+            // CraftBukkit end
 
             this.activeContainer.windowId = this.containerCounter;
             this.activeContainer.addSlotListener(this);
@@ -644,8 +843,14 @@
     }
 
     public void openTrade(IMerchant imerchant) {
+        // CraftBukkit start - Inventory open hook
+        Container container = CraftEventFactory.callInventoryOpenEvent(this, new ContainerMerchant(this.inventory, imerchant, this.world));
+        if (container == null) {
+            return;
+        }
+        // CraftBukkit end
         this.nextContainerCounter();
-        this.activeContainer = new ContainerMerchant(this.inventory, imerchant, this.world);
+        this.activeContainer = container; // CraftBukkit
         this.activeContainer.windowId = this.containerCounter;
         this.activeContainer.addSlotListener(this);
         InventoryMerchant inventorymerchant = ((ContainerMerchant) this.activeContainer).d();
@@ -665,13 +870,20 @@
     }
 
     public void openHorseInventory(EntityHorseAbstract entityhorseabstract, IInventory iinventory) {
+        // CraftBukkit start - Inventory open hook
+        Container container = CraftEventFactory.callInventoryOpenEvent(this, new ContainerHorse(this.inventory, iinventory, entityhorseabstract, this));
+        if (container == null) {
+            iinventory.closeContainer(this);
+            return;
+        }
+        // CraftBukkit end
         if (this.activeContainer != this.defaultContainer) {
             this.closeInventory();
         }
 
         this.nextContainerCounter();
         this.playerConnection.sendPacket(new PacketPlayOutOpenWindow(this.containerCounter, "EntityHorse", iinventory.getScoreboardDisplayName(), iinventory.getSize(), entityhorseabstract.getId()));
-        this.activeContainer = new ContainerHorse(this.inventory, iinventory, entityhorseabstract, this);
+        this.activeContainer = container; // CraftBukkit
         this.activeContainer.windowId = this.containerCounter;
         this.activeContainer.addSlotListener(this);
     }
@@ -712,6 +924,11 @@
     public void a(Container container, NonNullList<ItemStack> nonnulllist) {
         this.playerConnection.sendPacket(new PacketPlayOutWindowItems(container.windowId, nonnulllist));
         this.playerConnection.sendPacket(new PacketPlayOutSetSlot(-1, -1, this.inventory.getCarried()));
+        // CraftBukkit start - Send a Set Slot to update the crafting result slot
+        if (java.util.EnumSet.of(InventoryType.CRAFTING,InventoryType.WORKBENCH).contains(container.getBukkitView().getType())) {
+            this.playerConnection.sendPacket(new PacketPlayOutSetSlot(container.windowId, 0, container.getSlot(0).getItem()));
+        }
+        // CraftBukkit end
     }
 
     public void setContainerData(Container container, int i, int j) {
@@ -726,6 +943,7 @@
     }
 
     public void closeInventory() {
+        CraftEventFactory.handleInventoryCloseEvent(this); // CraftBukkit
         this.playerConnection.sendPacket(new PacketPlayOutCloseWindow(this.activeContainer.windowId));
         this.m();
     }
@@ -759,14 +977,14 @@
 
     public void a(Statistic<?> statistic, int i) {
         this.ch.b(this, statistic, i);
-        this.getScoreboard().getObjectivesForCriteria(statistic, this.getName(), (scoreboardscore) -> {
+        this.world.getServer().getScoreboardManager().getScoreboardScores(statistic, this.getName(), (scoreboardscore) -> { // CraftBukkit - Get our scores instead
             scoreboardscore.addScore(i);
         });
     }
 
     public void a(Statistic<?> statistic) {
         this.ch.setStatistic(this, statistic, 0);
-        this.getScoreboard().getObjectivesForCriteria(statistic, this.getName(), ScoreboardScore::c);
+        this.world.getServer().getScoreboardManager().getScoreboardScores(statistic, this.getName(), ScoreboardScore::c); // CraftBukkit - Get our scores instead
     }
 
     public int a(Collection<IRecipe> collection) {
@@ -814,8 +1032,17 @@
 
     public void triggerHealthUpdate() {
         this.lastHealthSent = -1.0E8F;
+        this.lastSentExp = -1; // CraftBukkit - Added to reset
     }
 
+    // CraftBukkit start - Support multi-line messages
+    public void sendMessage(IChatBaseComponent[] ichatbasecomponent) {
+        for (IChatBaseComponent component : ichatbasecomponent) {
+            this.sendMessage(component);
+        }
+    }
+    // CraftBukkit end
+
     public void a(IChatBaseComponent ichatbasecomponent, boolean flag) {
         this.playerConnection.sendPacket(new PacketPlayOutChat(ichatbasecomponent, flag ? ChatMessageType.GAME_INFO : ChatMessageType.CHAT));
     }
@@ -866,7 +1093,7 @@
         this.lastSentExp = -1;
         this.lastHealthSent = -1.0F;
         this.cp = -1;
-        this.cz.a((RecipeBook) entityplayer.cz);
+        // this.cz.a((RecipeBook) entityplayer.cz); // CraftBukkit
         this.removeQueue.addAll(entityplayer.removeQueue);
         this.cy = entityplayer.cy;
         this.cD = entityplayer.cD;
@@ -925,6 +1152,18 @@
     }
 
     public void a(EnumGamemode enumgamemode) {
+        // CraftBukkit start
+        if (enumgamemode == this.playerInteractManager.getGameMode()) {
+            return;
+        }
+
+        PlayerGameModeChangeEvent event = new PlayerGameModeChangeEvent(getBukkitEntity(), GameMode.getByValue(enumgamemode.getId()));
+        world.getServer().getPluginManager().callEvent(event);
+        if (event.isCancelled()) {
+            return;
+        }
+        // CraftBukkit end
+
         this.playerInteractManager.setGameMode(enumgamemode);
         this.playerConnection.sendPacket(new PacketPlayOutGameStateChange(3, (float) enumgamemode.getId()));
         if (enumgamemode == EnumGamemode.SPECTATOR) {
@@ -968,6 +1207,16 @@
     }
 
     public void a(PacketPlayInSettings packetplayinsettings) {
+        // CraftBukkit start
+        if (getMainHand() != packetplayinsettings.getMainHand()) {
+            PlayerChangedMainHandEvent event = new PlayerChangedMainHandEvent(getBukkitEntity(), getMainHand() == EnumMainHand.LEFT ? MainHand.LEFT : MainHand.RIGHT);
+            this.server.server.getPluginManager().callEvent(event);
+        }
+        if (!this.locale.equals(packetplayinsettings.b())) {
+            PlayerLocaleChangeEvent event = new PlayerLocaleChangeEvent(getBukkitEntity(), packetplayinsettings.b());
+            this.server.server.getPluginManager().callEvent(event);
+        }
+        // CraftBukkit end
         this.locale = packetplayinsettings.b();
         this.ct = packetplayinsettings.d();
         this.cu = packetplayinsettings.e();
@@ -1033,7 +1282,7 @@
         this.cw = (Entity) (entity == null ? this : entity);
         if (entity1 != this.cw) {
             this.playerConnection.sendPacket(new PacketPlayOutCamera(this.cw));
-            this.enderTeleportTo(this.cw.locX, this.cw.locY, this.cw.locZ);
+            this.playerConnection.a(this.cw.locX, this.cw.locY, this.cw.locZ, this.yaw, this.pitch, TeleportCause.SPECTATE); // CraftBukkit
         }
 
     }
@@ -1060,7 +1309,7 @@
 
     @Nullable
     public IChatBaseComponent getPlayerListName() {
-        return null;
+        return listName; // CraftBukkit
     }
 
     public void a(EnumHand enumhand) {
@@ -1077,12 +1326,17 @@
     }
 
     public void J() {
+        if (!CraftEventFactory.callToggleGlideEvent(this, true).isCancelled()) // CraftBukkit
         this.setFlag(7, true);
     }
 
     public void K() {
+        // CraftBukkit start
+        if (!CraftEventFactory.callToggleGlideEvent(this, false).isCancelled()) {
         this.setFlag(7, true);
         this.setFlag(7, false);
+        }
+        // CraftBukkit end
     }
 
     public AdvancementDataPlayer getAdvancementData() {
@@ -1094,9 +1348,16 @@
         return this.cD;
     }
 
+    // CraftBukkit start
     public void a(WorldServer worldserver, double d0, double d1, double d2, float f, float f1) {
+        this.a(worldserver, d0, d1, d2, f, f1, org.bukkit.event.player.PlayerTeleportEvent.TeleportCause.UNKNOWN);
+    }
+
+    public void a(WorldServer worldserver, double d0, double d1, double d2, float f, float f1, org.bukkit.event.player.PlayerTeleportEvent.TeleportCause cause) {
+        // CraftBukkit end
         this.setSpectatorTarget(this);
         this.stopRiding();
+        /* CraftBukkit start - replace with bukkit handling for multi-world
         if (worldserver == this.world) {
             this.playerConnection.a(d0, d1, d2, f, f1);
         } else {
@@ -1121,6 +1382,149 @@
             this.server.getPlayerList().b(this, worldserver);
             this.server.getPlayerList().updateClient(this);
         }
+        */
+        this.getBukkitEntity().teleport(new Location(worldserver.getWorld(), d0, d1, d2, f, f1), cause);
+        // CraftBukkit end
+
+    }
+
+    // CraftBukkit start - Add per-player time and weather.
+    public long timeOffset = 0;
+    public boolean relativeTime = true;
+
+    public long getPlayerTime() {
+        if (this.relativeTime) {
+            // Adds timeOffset to the current server time.
+            return this.world.getDayTime() + this.timeOffset;
+        } else {
+            // Adds timeOffset to the beginning of this day.
+            return this.world.getDayTime() - (this.world.getDayTime() % 24000) + this.timeOffset;
+        }
+    }
+
+    public WeatherType weather = null;
+
+    public WeatherType getPlayerWeather() {
+        return this.weather;
+    }
+
+    public void setPlayerWeather(WeatherType type, boolean plugin) {
+        if (!plugin && this.weather != null) {
+            return;
+        }
+
+        if (plugin) {
+            this.weather = type;
+        }
+
+        if (type == WeatherType.DOWNFALL) {
+            this.playerConnection.sendPacket(new PacketPlayOutGameStateChange(2, 0));
+        } else {
+            this.playerConnection.sendPacket(new PacketPlayOutGameStateChange(1, 0));
+        }
+    }
+
+    private float pluginRainPosition;
+    private float pluginRainPositionPrevious;
+
+    public void updateWeather(float oldRain, float newRain, float oldThunder, float newThunder) {
+        if (this.weather == null) {
+            // Vanilla
+            if (oldRain != newRain) {
+                this.playerConnection.sendPacket(new PacketPlayOutGameStateChange(7, newRain));
+            }
+        } else {
+            // Plugin
+            if (pluginRainPositionPrevious != pluginRainPosition) {
+                this.playerConnection.sendPacket(new PacketPlayOutGameStateChange(7, pluginRainPosition));
+            }
+        }
+
+        if (oldThunder != newThunder) {
+            if (weather == WeatherType.DOWNFALL || weather == null) {
+                this.playerConnection.sendPacket(new PacketPlayOutGameStateChange(8, newThunder));
+            } else {
+                this.playerConnection.sendPacket(new PacketPlayOutGameStateChange(8, 0));
+            }
+        }
+    }
+
+    public void tickWeather() {
+        if (this.weather == null) return;
+
+        pluginRainPositionPrevious = pluginRainPosition;
+        if (weather == WeatherType.DOWNFALL) {
+            pluginRainPosition += 0.01;
+        } else {
+            pluginRainPosition -= 0.01;
+        }
+
+        pluginRainPosition = MathHelper.a(pluginRainPosition, 0.0F, 1.0F);
+    }
+
+    public void resetPlayerWeather() {
+        this.weather = null;
+        this.setPlayerWeather(this.world.getWorldData().hasStorm() ? WeatherType.DOWNFALL : WeatherType.CLEAR, false);
+    }
+
+    @Override
+    public String toString() {
+        return super.toString() + "(" + this.getName() + " at " + this.locX + "," + this.locY + "," + this.locZ + ")";
+    }
+
+    // SPIGOT-1903, MC-98153
+    public void forceSetPositionRotation(double x, double y, double z, float yaw, float pitch) {
+        this.setPositionRotation(x, y, z, yaw, pitch);
+        this.playerConnection.syncPosition();
+    }
+
+    @Override
+    protected boolean isFrozen() {
+        return super.isFrozen() || !getBukkitEntity().isOnline();
+    }
+
+    @Override
+    public Scoreboard getScoreboard() {
+        return getBukkitEntity().getScoreboard().getHandle();
+    }
+
+    public void reset() {
+        float exp = 0;
+        boolean keepInventory = this.world.getGameRules().getBoolean("keepInventory");
+
+        if (this.keepLevel || keepInventory) {
+            exp = this.exp;
+            this.newTotalExp = this.expTotal;
+            this.newLevel = this.expLevel;
+        }
+
+        this.setHealth(this.getMaxHealth());
+        this.fireTicks = 0;
+        this.fallDistance = 0;
+        this.foodData = new FoodMetaData(this);
+        this.expLevel = this.newLevel;
+        this.expTotal = this.newTotalExp;
+        this.exp = 0;
+        this.deathTicks = 0;
+        this.setArrowCount(0);
+        this.removeAllEffects(org.bukkit.event.entity.EntityPotionEffectEvent.Cause.DEATH);
+        this.updateEffects = true;
+        this.activeContainer = this.defaultContainer;
+        this.killer = null;
+        this.lastDamager = null;
+        this.combatTracker = new CombatTracker(this);
+        this.lastSentExp = -1;
+        if (this.keepLevel || keepInventory) {
+            this.exp = exp;
+        } else {
+            this.giveExp(this.newExp);
+        }
+        this.keepLevel = false;
+    }
 
+    @Override
+    public CraftPlayer getBukkitEntity() {
+        return (CraftPlayer) super.getBukkitEntity();
     }
+    // CraftBukkit end
 }