PlayerConnection.java

package net.minecraft.server.v1_7_R4;
import java.io.DataInputStream;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ExecutionException;
import net.badlion.gspigot.protocol107.PacketPlayInVehicleMove;
import net.minecraft.util.com.google.common.primitives.Doubles;
import net.minecraft.util.io.netty.buffer.Unpooled;
import org.bukkit.Bukkit;
import org.bukkit.Location;
import org.bukkit.craftbukkit.v1_7_R4.SpigotTimings;
import org.bukkit.craftbukkit.v1_7_R4.entity.CraftPlayer;
import org.bukkit.craftbukkit.v1_7_R4.event.CraftEventFactory;
import org.bukkit.craftbukkit.v1_7_R4.inventory.CraftInventoryView;
import org.bukkit.craftbukkit.v1_7_R4.util.CraftChatMessage;
import org.bukkit.craftbukkit.v1_7_R4.util.LazyPlayerSet;
import org.bukkit.craftbukkit.v1_7_R4.util.Waitable;
import org.bukkit.entity.Player;
import org.bukkit.event.Event;
import org.bukkit.event.block.Action;
import org.bukkit.event.block.SignChangeEvent;
import org.bukkit.event.inventory.ClickType;
import org.bukkit.event.inventory.CraftItemEvent;
import org.bukkit.event.inventory.InventoryAction;
import org.bukkit.event.inventory.InventoryClickEvent;
import org.bukkit.event.inventory.InventoryCreativeEvent;
import org.bukkit.event.inventory.InventoryType;
import org.bukkit.event.player.AsyncPlayerChatEvent;
import org.bukkit.event.player.GCheatEvent;
import org.bukkit.event.player.PlayerAnimationEvent;
import org.bukkit.event.player.PlayerAttackEvent;
import org.bukkit.event.player.PlayerChatEvent;
import org.bukkit.event.player.PlayerCommandPreprocessEvent;
import org.bukkit.event.player.PlayerInteractEntityEvent;
import org.bukkit.event.player.PlayerItemHeldEvent;
import org.bukkit.event.player.PlayerKickEvent;
import org.bukkit.event.player.PlayerMoveEvent;
import org.bukkit.event.player.PlayerTeleportEvent;
import org.bukkit.event.player.PlayerToggleFlightEvent;
import org.bukkit.event.player.PlayerToggleSneakEvent;
import org.bukkit.event.player.PlayerToggleSprintEvent;
import org.bukkit.inventory.Inventory;
import org.bukkit.inventory.InventoryView;
import org.bukkit.inventory.Recipe;
import org.bukkit.util.NumberConversions;
import org.spigotmc.SpigotConfig;

public class PlayerConnection implements PacketPlayInListener {
  private static final Logger c = LogManager.getLogger();
  public final NetworkManager networkManager;
  private final MinecraftServer minecraftServer;
  public EntityPlayer player;
  private int e;
  private int f;
  private boolean g;
  private int h;
  private long i;
  private static Random j = new Random();
  private long k;
  private static final AtomicIntegerFieldUpdater chatSpamField = AtomicIntegerFieldUpdater.newUpdater(PlayerConnection.class, "chatThrottle"); private int x; private IntHashMap n; private double y; private double z; private double q; public boolean checkMovement; private boolean processedDisconnect; private final CraftServer server; private int lastTick; private int lastDropTick; private int dropCount; private static final int SURVIVAL_PLACE_DISTANCE_SQUARED = 36; private static final int CREATIVE_PLACE_DISTANCE_SQUARED = 49; private double lastPosX; private double lastPosY; private double lastPosZ; private float lastPitch; private float lastYaw; private boolean justTeleported; private boolean hasMoved; Long lastPacket; private Item lastMaterial;

  public PlayerConnection(MinecraftServer minecraftserver, NetworkManager networkmanager, EntityPlayer entityplayer) { this.n = new IntHashMap();



    this.checkMovement = true;














    this.lastTick = MinecraftServer.currentTick;
    this.lastDropTick = MinecraftServer.currentTick;
    this.dropCount = 0;




    this.lastPosX = Double.MAX_VALUE;
    this.lastPosY = Double.MAX_VALUE;
    this.lastPosZ = Double.MAX_VALUE;
    this.lastPitch = Float.MAX_VALUE;
    this.lastYaw = Float.MAX_VALUE;
    this.justTeleported = false;















    this.hackDebug = false;
    this.lastKickTimestamp = 0L;
    this.realPing = 0.0D;
    this.totalPing = 0L;
    this.packetsNotReceived = 0;
    this.lastKeepAlivePacketReceivedTime = -1L;
    this.lastPacketTypeReceived = '.';
    this.lastGroundYValue = -1.0D;
    this.tickToKickOn = -1L;
    this.kickLocationX = -1.0D;
    this.kickLocationY = -1.0D;
    this.kickLocationZ = -1.0D;
    this.explosionHitTime = 0;
    this.highestYValueBeforeOnGroundSafely = -1.0D;
    this.checkNextTickForFallDamage = false;
    this.lastGroundYValueForGlideHackDetection = -1.0D;
    this.numOfHoverPacketsCounted = 0;
    this.numOfSpeedPacketsCounted = 0;
    this.numOfConsistentSpeedPacketsCounted = 0;
    this.lastSpeedMoved = -1.0D;
    this.lastHitTime = -1L;
    this.numOfNotHitPackets = 3;
    this.maxHitSpeedPacketCount = 10;
    this.maxNotHitSpeedPacketCount = 5;
    this.lastSpeedTime = -1L;
    this.maxSpeed = -1.0D;
    this.numOfMovePacketsReceived = 0;
    this.packetCountReset = false;
    this.critFlag = false;
    this.critDeltaY = -1.0D;
    this.lastCritStrike = -1L;
    this.lastAttackTime = -1L;
    this.lastMovementPacketTick = MinecraftServer.currentTick;
    this.lastMajorPacketProcessed = MinecraftServer.currentTick;
    this.numberOfPacketsReceivedSinceLastMajorTick = 0L;
    this.averageMaxPacketsPerSecond = 2.5D;
    this.lastFuckedUpPacketReceivedTick = 0L;
    this.lastHasPos = false;
    this.lastHasLook = false;
    this.lastCheckedFuckedUpPacketReceivedTick = 0L;
    this.numberOfMorePacketStrikes = 0L;
    this.processedMajorTick = false;
    this.lastHitAccuracyTick = 0L;
    this.highestHitAccuracy = 0.0F;
    this.highestHits = 0;
    this.highestSwings = 0;
    this.lastBlockGlitchFromX = 0.0D;
    this.lastBlockGlitchFromZ = 0.0D;
    this.lastBlockGlitchToX = 0.0D;
    this.lastBlockGlitchToZ = 0.0D;
    this.movesReceived = 0L;



    this.lastValidX = -1.0D;
    this.lastValidY = -1.0D;
    this.lastValidZ = -1.0D;



    this.lastPacketsQueue = new LinkedList();
    this.killAuraViolationsTypeA = 0;
    this.killAuraViolationsTypeB = 0;
    this.killAuraViolationsTypeC = new HashMap();
    this.killAuraViolationsTypeD = new HashMap();
    this.setOffTypeE = false;
    this.lastCalculatedHalfSecondTime = 0L;
    this.lastHalfSecondX = 0.0D;
    this.lastHalfSecondY = -1.0D;
    this.lastHalfSecondZ = 0.0D;





    this.keepAlives = new HashSet();



    this.lastHitMotionX = 10000.0D;
    this.lastHitMotionY = 10000.0D;
    this.lastHitMotionZ = 10000.0D;
    this.lastMotionTick = 0L;
    this.antiKBViolations = 0;


    this.lastKAPacketTick = MinecraftServer.currentTick;
    this.lastKAMovementPacket = MinecraftServer.currentTick;
    this.lastNotificationTick = MinecraftServer.currentTick;



    this.lastAttackPlayerTime = 0L;
    this.isDigging = false;
    this.digHorizontalMovement = 0;
    this.typeRStage = 0;
    this.typeRThreshold = 0;
    this.typeOStage = 0;
    this.typeOThreshold = 0;
    this.typePStage = 0;
    this.typePThreshold = 0;
    this.typePOther = 0;
    this.typeQStage = 0;
    this.typeQThreshold = 0;



    this.typeE2Swing = false;



    this.velocitiesSent = new ArrayList();
    this.velocitySentTimes = new ArrayList();
    this.positionSentTime = System.currentTimeMillis();
    this.reducedKbAmount = 0;
    this.miniJumpAmount = 0;



    this.horizontalSpeed = 1.0D;
    this.newHorizontalSpeed = 0.0D;

    this.blockFriction = 0.0D;
    this.blockFrictionX = Integer.MAX_VALUE;
    this.blockFrictionY = Integer.MAX_VALUE;
    this.blockFrictionZ = Integer.MAX_VALUE;
    this.previousHorizontalMove = 0.0D;
    this.flyTypeDAmount = 0;
    this.speedTypeDAmount = 0;



    this.criticalTypeBStage = 0;

    this.criticalTypeBHeight = 0.0D;



    this.justSentSprint = false;
    this.lastSprintViolationTime = System.currentTimeMillis();





















































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































    this.lastPlace = -1L;
    this.packets = 0;






















































































































































































































































































































































































































































































































































































































































    this.lastPlayerHitIdTypeS = 0;
    this.playerHitsTypeS = 0;
    this.lastTypeSViolationTick = 0;
    this.fakePlayerHitsTypeS = new HashMap();
    this.prplzTypeB8 = System.currentTimeMillis();
    this.prplzTypeB9 = System.currentTimeMillis(); this.minecraftServer = minecraftserver; this.networkManager = networkmanager; networkmanager.a(this); this.player = entityplayer; entityplayer.playerConnection = this; this.server = minecraftserver.server; } public CraftPlayer getPlayer() { return (this.player == null) ? null : this.player.getBukkitEntity(); } private static final HashSet<Integer> invalidItems = new HashSet(Arrays.asList(new Integer[] { null, null, null, null, null, null, null, null, null, null,
          null, null, null, null, null, null, null, null, null, null,
          null, null, null, null, null, null, null, null, null, null,
          null, null, null, null, null, null, null, (new Integer[38][36] = (new Integer[38][35] = (new Integer[38][34] = (new Integer[38][33] = (new Integer[38][32] = (new Integer[38][31] = (new Integer[38][30] = (new Integer[38][29] = (new Integer[38][28] = (new Integer[38][27] = (new Integer[38][26] = (new Integer[38][25] = (new Integer[38][24] = (new Integer[38][23] = (new Integer[38][22] = (new Integer[38][21] = (new Integer[38][20] = (new Integer[38][19] = (new Integer[38][18] = (new Integer[38][17] = (new Integer[38][16] = (new Integer[38][15] = (new Integer[38][14] = (new Integer[38][13] = (new Integer[38][12] = (new Integer[38][11] = (new Integer[38][10] = (new Integer[38][9] = (new Integer[38][8] = (new Integer[38][7] = (new Integer[38][6] = (new Integer[38][5] = (new Integer[38][4] = (new Integer[38][3] = (new Integer[38][2] = (new Integer[38][1] = (new Integer[38][0] = Integer.valueOf(8)).valueOf(9)).valueOf(10)).valueOf(11)).valueOf(26)).valueOf(34)).valueOf(36)).valueOf(43)).valueOf(51)).valueOf(52)).valueOf(55)).valueOf(59)).valueOf(60)).valueOf(62)).valueOf(63)).valueOf(64)).valueOf(68)).valueOf(71)).valueOf(74)).valueOf(75)).valueOf(83)).valueOf(90)).valueOf(92)).valueOf(93)).valueOf(94)).valueOf(104)).valueOf(105)).valueOf(115)).valueOf(117)).valueOf(118)).valueOf(119)).valueOf(125)).valueOf(127)).valueOf(132)).valueOf(140)).valueOf(141)).valueOf(142)).valueOf(144) })); public boolean hackDebug; private long lastKickTimestamp; private double realPing; private long totalPing; private int packetsNotReceived; private long lastKeepAlivePacketReceivedTime; private char lastPacketTypeReceived; public double lastGroundYValue; private long tickToKickOn; private double kickLocationX; private double kickLocationY; private double kickLocationZ; public int explosionHitTime; public double highestYValueBeforeOnGroundSafely; public boolean checkNextTickForFallDamage; private double lastGroundYValueForGlideHackDetection; private int numOfHoverPacketsCounted; public int numOfSpeedPacketsCounted; public int numOfConsistentSpeedPacketsCounted; public double lastSpeedMoved; public long lastHitTime; public int numOfNotHitPackets; private int maxHitSpeedPacketCount; private int maxNotHitSpeedPacketCount; private long lastSpeedTime; private double maxSpeed; private int numOfMovePacketsReceived; private boolean packetCountReset; private boolean critFlag; private double critDeltaY; private long lastCritStrike; public long lastAttackTime; public long lastMovementPacketTick; public long lastMajorPacketProcessed; public long numberOfPacketsReceivedSinceLastMajorTick; public double averageMaxPacketsPerSecond; public long lastFuckedUpPacketReceivedTick; public boolean lastHasPos; public boolean lastHasLook; public long lastCheckedFuckedUpPacketReceivedTick; public long numberOfMorePacketStrikes; public boolean processedMajorTick; public long lastHitAccuracyTick; public float highestHitAccuracy; public int highestHits; public int highestSwings; private double lastBlockGlitchFromX; private double lastBlockGlitchFromZ; private double lastBlockGlitchToX; private double lastBlockGlitchToZ; public long movesReceived; private double lastValidX; private double lastValidY; private double lastValidZ; public Deque<Packet> lastPacketsQueue; public int killAuraViolationsTypeA; public int killAuraViolationsTypeB; public Map<Integer, List<Long>> killAuraViolationsTypeC; public Map<Integer, List<Long>> killAuraViolationsTypeD; public boolean setOffTypeE; public long lastCalculatedHalfSecondTime; public double lastHalfSecondX; public double lastHalfSecondY; public double lastHalfSecondZ; public boolean hasMovedInHalfSecond; public long playerTime; public Set<Integer> keepAlives; public double lastHitMotionX; public void a(PacketPlayInUseEntity packetplayinuseentity) { if (packetplayinuseentity.c() == null)
      return;  if (!this.player.isAlive())
      return;  WorldServer worldserver = this.minecraftServer.getWorldServer(this.player.dimension);
    Entity entity = packetplayinuseentity.a(worldserver);

    if (entity == this.player) {

      disconnect("Cannot interact with self!");

      return;
    }

    this.player.v();

    if (entity == null) {
      Integer realId = (Integer)(this.player.server.getPlayerList()).fakePlayerMap.get(Integer.valueOf(packetplayinuseentity.a));
      if (realId != null) {
        entity = this.player.world.getEntity(realId.intValue());
        long now = System.currentTimeMillis();
        Iterator<Long> iter = this.fakePlayerHitsTypeS.values().iterator();
        while (iter.hasNext()) {
          if (now - ((Long)iter.next()).longValue() > 3000L) {
            iter.remove();
          }
        }
        this.fakePlayerHitsTypeS.put(Long.valueOf(packetplayinuseentity.a << 32 | realId.intValue()), Long.valueOf(now));
        int count = 0;
        for (Iterator iterator = this.fakePlayerHitsTypeS.keySet().iterator(); iterator.hasNext(); ) { long l = ((Long)iterator.next()).longValue();
          if ((l & 0xFFFFFFFFL) == realId.intValue()) {
            count++;
          } }

        if (count == 8 &&
          now - this.prplzTypeB8 > 1000L) {
          Bukkit.getPluginManager().callEvent(new GCheatEvent(this.player.getBukkitEntity(), GCheatEvent.Type.KILL_AURA, GCheatEvent.Level.ADMIN, this.player.getName() + " is using Kill Aura Type T (" + count + ")"));
          this.prplzTypeB8 = now;
        }

        if (count == 9 &&
          now - this.prplzTypeB9 > 1000L) {
          Bukkit.getPluginManager().callEvent(new GCheatEvent(this.player.getBukkitEntity(), GCheatEvent.Type.KILL_AURA, GCheatEvent.Level.ADMIN, this.player.getName() + " is using Kill Aura Type T (" + count + ")"));
          this.prplzTypeB9 = now;
        }
      }
    }


    if (entity != null) {

      if (entity instanceof EntityPlayer && !(entity instanceof net.badlion.gspigot.EntityNPC)) {
        EntityPlayer targetPlayer = (EntityPlayer)(this.minecraftServer.getPlayerList()).uuidMap.get(((EntityPlayer)entity).uniqueID);
        if (targetPlayer == null) {
          return;
        }
      }

      boolean flag = this.player.hasLineOfSight(entity);
      double d0 = 36.0D;

      if (!flag) {
        d0 = 9.0D;
      }

      if (this.player.f(entity) < d0) {
        ItemStack itemInHand = this.player.inventory.getItemInHand();
        if (packetplayinuseentity.c() == EnumEntityUseAction.INTERACT) {

          boolean triggerTagUpdate = (itemInHand != null && itemInHand.getItem() == Items.NAME_TAG && entity instanceof EntityInsentient);
          boolean triggerChestUpdate = (itemInHand != null && itemInHand.getItem() == Item.getItemOf(Blocks.CHEST) && entity instanceof EntityHorse);
          boolean triggerLeashUpdate = (itemInHand != null && itemInHand.getItem() == Items.LEASH && entity instanceof EntityInsentient);
          PlayerInteractEntityEvent event = new PlayerInteractEntityEvent(getPlayer(), entity.getBukkitEntity());
          this.server.getPluginManager().callEvent(event);

          if (triggerLeashUpdate && (event.isCancelled() || this.player.inventory.getItemInHand() == null || this.player.inventory.getItemInHand().getItem() != Items.LEASH))
          {
            sendPacket(new PacketPlayOutAttachEntity(true, entity, ((EntityInsentient)entity).getLeashHolder()));
          }

          if (triggerTagUpdate && (event.isCancelled() || this.player.inventory.getItemInHand() == null || this.player.inventory.getItemInHand().getItem() != Items.NAME_TAG))
          {
            sendPacket(new PacketPlayOutEntityMetadata(entity, true));
          }
          if (triggerChestUpdate && (event.isCancelled() || this.player.inventory.getItemInHand() == null || this.player.inventory.getItemInHand().getItem() != Item.getItemOf(Blocks.CHEST))) {
            sendPacket(new PacketPlayOutEntityMetadata(entity, true));
          }

          if (event.isCancelled()) {
            return;
          }


          this.player.q(entity);


          if (itemInHand != null && itemInHand.count <= -1) {
            this.player.updateInventory(this.player.activeContainer);
          }
        }
        else if (packetplayinuseentity.c() == EnumEntityUseAction.ATTACK) {
          if (entity instanceof EntityItem || entity instanceof EntityExperienceOrb || entity instanceof EntityArrow || entity == this.player) {
            disconnect("Attempting to attack an invalid entity");
            this.minecraftServer.warning("Player " + this.player.getName() + " tried to attack an invalid entity");

            return;
          }

          PlayerAttackEvent event = new PlayerAttackEvent(this.player.getBukkitEntity());
          this.server.getPluginManager().callEvent(event);



          if (this.player.isBlocking()) {
            this.player.bA();
          }


          this.player.attack(entity);


          if (packetplayinuseentity.a == this.lastPlayerHitIdTypeS && packetplayinuseentity.a == entity.getId() && entity instanceof EntityPlayer && ((EntityPlayer)entity).fakePlayerGCheatEnabled() && entity.vehicle == null && this.playerTime - ((EntityPlayer)entity).fakeEntitySpawnTime > 0L && this.player.world.spigotConfig.fakePlayerGCheatEnabled) {


            if (this.lastTypeSViolationTick + 20 < MinecraftServer.currentTick &&
              ++this.playerHitsTypeS == 5) {
              Bukkit.getPluginManager().callEvent(new GCheatEvent(this.player.getBukkitEntity(), GCheatEvent.Type.KILL_AURA, GCheatEvent.Level.ADMIN, this.player.getName() + " is using Kill Aura Type U (" + this.playerHitsTypeS + ")"));
              this.playerHitsTypeS = 0;
              this.lastTypeSViolationTick = MinecraftServer.currentTick;
            }
          } else {

            this.lastPlayerHitIdTypeS = packetplayinuseentity.a;
            this.playerHitsTypeS = 0;
          }



          if (itemInHand != null && itemInHand.count <= -1)
            this.player.updateInventory(this.player.activeContainer);
        }
      }
    }  }


  public double lastHitMotionY; public double lastHitMotionZ; public long lastMotionTick; public int antiKBViolations; public long lastKAPacketTick; public long lastKAMovementPacket; public long lastNotificationTick; public long lastAttackPlayerTime; public boolean isDigging; public int digHorizontalMovement; public int typeRStage; public int typeRThreshold; public int typeOStage; public int typeOThreshold; public int typePStage; public int typePThreshold; public int typePOther; public int typeQStage; public int typeQThreshold; public boolean typeE2Swing; public final List<PacketPlayOutEntityVelocity> velocitiesSent; public final List<Long> velocitySentTimes; public long positionSentTime; public int reducedKbAmount; public int miniJumpAmount; public double horizontalSpeed; public double newHorizontalSpeed; public long newHorizontalSpeedTime; public double blockFriction; public int blockFrictionX; public int blockFrictionY; public int blockFrictionZ; public double previousHorizontalMove; public int flyTypeDAmount;
  public int speedTypeDAmount;

  public void a(PacketPlayInClientCommand packetplayinclientcommand) { this.player.v();
    EnumClientCommand enumclientcommand = packetplayinclientcommand.c();

    switch (ClientCommandOrdinalWrapper.a[enumclientcommand.ordinal()])
    { case 1:
        if (this.player.viewingCredits) {
          this.minecraftServer.getPlayerList().changeDimension(this.player, 0, PlayerTeleportEvent.TeleportCause.END_PORTAL); break;
        }  if (this.player.r().getWorldData().isHardcore()) {
          if (this.minecraftServer.N() && this.player.getName().equals(this.minecraftServer.M())) {
            this.player.playerConnection.disconnect("You have died. Game over, man, it's game over!");
            this.minecraftServer.U(); break;
          }
          GameProfileBanEntry gameprofilebanentry = new GameProfileBanEntry(this.player.getProfile(), (Date)null, "(You just lost the game)", (Date)null, "Death in Hardcore");

          this.minecraftServer.getPlayerList().getProfileBans().add(gameprofilebanentry);
          this.player.playerConnection.disconnect("You have died. Game over, man, it's game over!");
          break;
        }
        if (this.player.getHealth() > 0.0F) {
          return;
        }

        this.player = this.minecraftServer.getPlayerList().moveToWorld(this.player, 0, false);
        break;


      case 2:
        this.player.getStatisticManager().a(this.player);
        break;

      case 3:
        this.player.a(AchievementList.f); break; }  } public int criticalTypeBStage; public double criticalTypeBY; public double criticalTypeBHeight; public boolean justSentSprint; public long lastSprintViolationTime; private long lastPlace; private int packets; public int lastPlayerHitIdTypeS; public int playerHitsTypeS; public int lastTypeSViolationTick; public final Map<Long, Long> fakePlayerHitsTypeS; public long prplzTypeB8; public long prplzTypeB9; private boolean isSameSign(double d1, double d2) { return (((d1 < 0.0D) ? 1 : 0) == ((d2 < 0.0D) ? 1 : 0)); } private boolean isValidMotion(double d1, double d2) { return (Math.abs(d1 - d2) < 0.15D); } public void a() { if (this.networkManager.getVersion() >= 107) { double x = this.player.locX; double y = this.player.locY; double z = this.player.locZ; boolean onGround = this.player.onGround; this.player.i(); this.player.setLocation(x, y, z, this.player.yaw, this.player.pitch); this.player.onGround = onGround; }  this.g = false; this.e++; this.minecraftServer.methodProfiler.a("keepAlive"); if (this.e - this.k > 10L) { this.k = this.e; this.i = d(); this.h = (int)this.i; this.packetsNotReceived++; this.keepAlives.add(Integer.valueOf(this.h)); if (this.keepAlives.size() > 120 && isAntiCheatActivated()) { disconnect("Disconnected due to lag", true); return; }  sendPacket(new PacketPlayOutKeepAlive(this.h)); }  if (this.packetsNotReceived >= 40 && isAntiCheatActivated()) { disconnect("Disconnected due to lag", true); return; }  int spam; while ((spam = this.chatThrottle) > 0 && !chatSpamField.compareAndSet(this, spam, spam - 1)); if (this.x > 0) this.x--;  if (this.player.x() > 0L && this.minecraftServer.getIdleTimeout() > 0 && MinecraftServer.ar() - this.player.x() > (this.minecraftServer.getIdleTimeout() * 1000 * 60)) disconnect("You have been idle for too long!");  } public NetworkManager b() { return this.networkManager; } public void disconnect(String s) { disconnect(s, false); } public boolean isAntiCheatActivated() { return (SpigotConfig.enableAntiCheat && MinecraftServer.tps1Above19 && !this.player.getBukkitEntity().isBypassingGCheat()); } public void disconnect(String s, boolean anticheat) { if (anticheat) if ((MinecraftServer.getServer()).tps1.getAverage() <= 19.0D) return;   String leaveMessage = EnumChatFormat.YELLOW + this.player.getName() + " left the game."; PlayerKickEvent event = new PlayerKickEvent(this.server.getPlayer(this.player), s, leaveMessage); if (this.server.getServer().isRunning()) this.server.getPluginManager().callEvent(event);  if (event.isCancelled()) return;  s = event.getReason(); ChatComponentText chatcomponenttext = new ChatComponentText(s); this.networkManager.handle(new PacketPlayOutKickDisconnect(chatcomponenttext), new GenericFutureListener[] { new PlayerConnectionFuture(this, chatcomponenttext) }); a(chatcomponenttext); this.networkManager.g(); } public void a(PacketPlayInSteerVehicle packetplayinsteervehicle) { this.player.a(packetplayinsteervehicle.c(), packetplayinsteervehicle.d(), packetplayinsteervehicle.e(), packetplayinsteervehicle.f()); } public void a(PacketPlayInFlying packetplayinflying) { if (Double.isNaN(packetplayinflying.x) || Double.isNaN(packetplayinflying.y) || Double.isNaN(packetplayinflying.z) || Double.isNaN(packetplayinflying.stance)) { c.warn(this.player.getName() + " was caught trying to crash the server with an invalid position."); getPlayer().kickPlayer("NaN in position (Hacking?)"); return; }  WorldServer worldserver = this.minecraftServer.getWorldServer(this.player.dimension); boolean isAntiCheatActivated = isAntiCheatActivated(); if (isAntiCheatActivated && this.tickToKickOn != -1L && MinecraftServer.currentTick >= this.tickToKickOn) { disconnect("Flying is not enabled on this server", true); if (isDisconnected()) { String msg = String.format("%s was caught flying (Type B) at %.1f %.1f %.1f", new Object[] { this.player.getName(), Double.valueOf(this.kickLocationX), Double.valueOf(this.kickLocationY), Double.valueOf(this.kickLocationZ) }); Bukkit.getPluginManager().callEvent(new GCheatEvent(this.player.getBukkitEntity(), GCheatEvent.Type.FLY, GCheatEvent.Level.ADMIN, msg)); c.warn(this.player.getName() + " was kicked for flying!"); return; }  }  long numOfTicksSinceLastPacket = this.networkManager.ticksSinceLastPacket; if (isAntiCheatActivated && !this.minecraftServer.getAllowFlight() && !this.player.abilities.canFly && this.player.vehicle == null) if (SpigotConfig.enableMassPacketHacking && this.networkManager.currentTime - this.positionSentTime > 1000L) { if (this.lastFuckedUpPacketReceivedTick == MinecraftServer.currentTick && this.lastCheckedFuckedUpPacketReceivedTick != MinecraftServer.currentTick && packetplayinflying.hasPos != this.lastHasPos && packetplayinflying.hasLook != this.lastHasLook) { if (this.hackDebug) Bukkit.getLogger().info(this.player.getName() + " has some double packet bug");  this.lastCheckedFuckedUpPacketReceivedTick = MinecraftServer.currentTick; } else { this.numberOfPacketsReceivedSinceLastMajorTick++; this.lastFuckedUpPacketReceivedTick = MinecraftServer.currentTick; this.lastHasPos = packetplayinflying.hasPos; this.lastHasLook = packetplayinflying.hasLook; }  if (this.hackDebug) { Bukkit.getLogger().info(numOfTicksSinceLastPacket + " " + this.numberOfPacketsReceivedSinceLastMajorTick); Bukkit.getLogger().info(packetplayinflying.x + " " + packetplayinflying.y + " " + packetplayinflying.z + " " + packetplayinflying.yaw + " " + packetplayinflying.pitch + packetplayinflying.hasPos + " " + packetplayinflying.hasLook + " " + packetplayinflying.stance); }  if (!this.processedMajorTick && this.lastMajorPacketProcessed + 20L < MinecraftServer.currentTick) { long diff = MinecraftServer.currentTick - this.lastMajorPacketProcessed; this.lastMajorPacketProcessed = MinecraftServer.currentTick; this.processedMajorTick = true; if (numOfTicksSinceLastPacket > 20L) { if (this.hackDebug) Bukkit.getLogger().info("Reset because we got a flood of packets.");  this.numberOfPacketsReceivedSinceLastMajorTick = 0L; this.lastFuckedUpPacketReceivedTick = 0L; this.lastCheckedFuckedUpPacketReceivedTick = 0L; this.lastHasPos = false; this.lastHasLook = false; }  if (numOfTicksSinceLastPacket <= 20L && this.numberOfPacketsReceivedSinceLastMajorTick / diff >= this.averageMaxPacketsPerSecond) { if (this.hackDebug) Bukkit.getLogger().info("Increased by 1 for timer.");  if (++this.numberOfMorePacketStrikes >= 3L) Bukkit.getPluginManager().callEvent(new GCheatEvent(this.player.getBukkitEntity(), GCheatEvent.Type.TIMER, GCheatEvent.Level.ADMIN, this.player.getName() + " is mass packet hacking Type B VL" + this.numberOfPacketsReceivedSinceLastMajorTick));  } else if (this.numberOfMorePacketStrikes > 0L) { if (this.hackDebug) Bukkit.getLogger().info("Reduced by 1 for timer.");  this.numberOfMorePacketStrikes--; }  if (this.hackDebug) Bukkit.getLogger().info("Reset " + this.numberOfPacketsReceivedSinceLastMajorTick);  this.numberOfPacketsReceivedSinceLastMajorTick = 0L; this.lastFuckedUpPacketReceivedTick = 0L; this.lastCheckedFuckedUpPacketReceivedTick = 0L; this.lastHasPos = false; this.lastHasLook = false; } else if (MinecraftServer.currentTick % 20 != 0) { this.processedMajorTick = false; }  }   this.g = true; if (!this.player.viewingCredits) { if (!this.checkMovement) { double d0 = packetplayinflying.d() - this.z; if (packetplayinflying.c() == this.y && d0 * d0 < 0.01D && packetplayinflying.e() == this.q) this.checkMovement = true;  }  this.lastKAMovementPacket = MinecraftServer.currentTick; CraftPlayer craftPlayer = getPlayer(); if (!this.hasMoved) { Location curPos = craftPlayer.getLocation(); this.lastPosX = curPos.getX(); this.lastPosY = curPos.getY(); this.lastPosZ = curPos.getZ(); this.lastYaw = curPos.getYaw(); this.lastPitch = curPos.getPitch(); this.hasMoved = true; }  Location from = new Location(craftPlayer.getWorld(), this.lastPosX, this.lastPosY, this.lastPosZ, this.lastYaw, this.lastPitch); Location to = craftPlayer.getLocation().clone(); if (packetplayinflying.hasPos && (!packetplayinflying.hasPos || packetplayinflying.y != -999.0D || packetplayinflying.stance != -999.0D)) { to.setX(packetplayinflying.x); to.setY(packetplayinflying.y); to.setZ(packetplayinflying.z); }  if (packetplayinflying.hasLook) { to.setYaw(packetplayinflying.yaw); to.setPitch(packetplayinflying.pitch); }  if (isAntiCheatActivated && !this.minecraftServer.getAllowFlight() && !this.player.abilities.canFly && this.player.vehicle == null) { if (this.lastMotionTick != 0L) if (this.lastMotionTick + 20L < MinecraftServer.currentTick) { this.lastMotionTick = 0L; this.lastHitMotionX = this.lastHitMotionY = this.lastHitMotionZ = 0.0D; if (this.hackDebug) Bukkit.getLogger().info(this.player.getName() + " reset kb check because long time");  if (this.lastKeepAlivePacketReceivedTime + 800L > this.networkManager.currentTime) { if (++this.antiKBViolations >= 3) { String msg = String.format("%s was caught using Anti-KB at %.1f %.1f %.1f", new Object[] { this.player.getName(), Double.valueOf(to.getX()), Double.valueOf(to.getY()), Double.valueOf(to.getZ()) }); Bukkit.getPluginManager().callEvent(new GCheatEvent(this.player.getBukkitEntity(), GCheatEvent.Type.ANTI_KB, GCheatEvent.Level.ADMIN, msg)); this.antiKBViolations = 0; }  } else if (this.hackDebug) { Bukkit.getLogger().info(this.player.getName() + " is lagging too much"); }  } else if (!packetplayinflying.i()) { this.lastMotionTick = 0L; this.lastHitMotionX = this.lastHitMotionY = this.lastHitMotionZ = 0.0D; if (this.antiKBViolations > 0) this.antiKBViolations--;  if (this.hackDebug) Bukkit.getLogger().info(this.player.getName() + " reset because valid KB");  }   } else { this.lastMotionTick = 0L; this.lastHitMotionX = this.lastHitMotionY = this.lastHitMotionZ = 0.0D; if (this.hackDebug) Bukkit.getLogger().info(this.player.getName() + " reset because creative mode");  }  double delta = Math.pow(this.lastPosX - to.getX(), 2.0D) + Math.pow(this.lastPosY - to.getY(), 2.0D) + Math.pow(this.lastPosZ - to.getZ(), 2.0D); float deltaAngle = Math.abs(this.lastYaw - to.getYaw()) + Math.abs(this.lastPitch - to.getPitch()); float f4 = 0.0625F; AxisAlignedBB axisalignedbb = this.player.boundingBox.clone().grow(f4, f4, f4).a(0.0D, -0.55D, 0.0D); boolean touchingAir = !worldserver.c(axisalignedbb); if ((delta > 0.00390625D || deltaAngle > 10.0F) && this.checkMovement && !this.player.dead) { this.lastPosX = to.getX(); this.lastPosY = to.getY(); this.lastPosZ = to.getZ(); this.lastYaw = to.getYaw(); this.lastPitch = to.getPitch(); if (isAntiCheatActivated) { if (this.lastCalculatedHalfSecondTime + 500L < this.networkManager.currentTime) { this.lastCalculatedHalfSecondTime = this.networkManager.currentTime; this.lastHalfSecondX = to.getX(); this.lastHalfSecondY = to.getY(); this.lastHalfSecondZ = to.getZ(); double distanceSqrd = NumberConversions.square(to.getX() - from.getX()) + NumberConversions.square(to.getZ() - from.getZ()); if (this.hackDebug) Bukkit.getLogger().info("Distance moved " + Math.sqrt(distanceSqrd));  this.hasMovedInHalfSecond = (distanceSqrd >= 0.0225D); }  boolean justTeleported = (this.lastGroundYValue == -1.0D); if (!this.minecraftServer.getAllowFlight() && !this.player.abilities.canFly && this.player.vehicle == null) { if (this.player.onGround) { this.lastGroundYValue = from.getY(); this.numOfHoverPacketsCounted = 0; if (this.hackDebug) Bukkit.getLogger().info(this.player.getName() + " y position on ground: " + this.lastGroundYValue);  } else { if (worldserver.containsLiquidOrClimable(axisalignedbb)) { this.lastGroundYValue = from.getY(); if (this.hackDebug) Bukkit.getLogger().info(this.player.getName() + " moved in the water/ladder/vine " + from.getY());  }  if (packetplayinflying.hasPos && to.getY() > 0.0D && to.getY() == from.getY() && touchingAir && this.networkManager.lastVehicleTick + 100L < MinecraftServer.currentTick) { this.numOfHoverPacketsCounted++; if (this.numOfHoverPacketsCounted >= 5) { String msg = String.format("%s is hovering. %.1f %.1f %.1f", new Object[] { this.player.getName(), Double.valueOf(to.getX()), Double.valueOf(to.getY()), Double.valueOf(to.getZ()) }); Bukkit.getPluginManager().callEvent(new GCheatEvent(this.player.getBukkitEntity(), GCheatEvent.Type.HOVER, GCheatEvent.Level.ADMIN, msg)); this.numOfHoverPacketsCounted = 0; }  } else { this.numOfHoverPacketsCounted = 0; if (this.hackDebug) Bukkit.getLogger().info(this.player.getName() + " reset hover.");  }  if (this.hackDebug) Bukkit.getLogger().info(this.player.getName() + " is not on the ground and has y position " + from.getY());  }  if (this.lastHitTime + 1500L < this.networkManager.currentTime && this.explosionHitTime + 200 < MinecraftServer.currentTick && this.lastGroundYValue != -1.0D && to.getY() > this.lastGroundYValue + 6.0D && touchingAir) { String msg = String.format("%s was caught flying (Type C) at %.1f %.1f %.1f", new Object[] { this.player.getName(), Double.valueOf(to.getX()), Double.valueOf(to.getY()), Double.valueOf(to.getZ()) }); Bukkit.getPluginManager().callEvent(new GCheatEvent(this.player.getBukkitEntity(), GCheatEvent.Type.FLY, GCheatEvent.Level.ADMIN, msg)); }  }  if (this.lastGroundYValue + 1.0D < to.getY()) { this.killAuraViolationsTypeA = 0; this.killAuraViolationsTypeB = 0; }  if (!this.minecraftServer.getAllowFlight() && !this.player.abilities.canFly && this.player.vehicle == null) if (this.lastGroundYValue != -1.0D) { if (this.explosionHitTime + 200 < MinecraftServer.currentTick) { long packetDiff = (numOfTicksSinceLastPacket == 0L) ? 1L : numOfTicksSinceLastPacket; if (this.hackDebug) { Bukkit.getLogger().info(getPlayer().getName() + " moved " + Math.sqrt(NumberConversions.square(to.getX() - from.getX()) + NumberConversions.square(to.getZ() - from.getZ()))); Bukkit.getLogger().info(getPlayer().getName() + " deltaY " + Math.abs(to.getY() - from.getY())); Bukkit.getLogger().info(getPlayer().getName() + " num of ticks " + packetDiff); }  double limit = 0.42D; MobEffect mobeffect = this.player.getEffect(MobEffectList.FASTER_MOVEMENT); int amplification = (mobeffect != null) ? (mobeffect.getAmplifier() + 1) : 0; if (this.hackDebug) Bukkit.getLogger().info(this.player.getName() + " has speed " + amplification);  boolean speedIsActive = false; switch (amplification) { case 0: limit = 0.35D; break;case 1: limit = 0.39D; this.lastSpeedTime = this.networkManager.currentTime; speedIsActive = true; break;case 2: limit = 0.42D; this.lastSpeedTime = this.networkManager.currentTime; speedIsActive = true; break;default: limit = 0.35D + 0.05D * amplification; this.lastSpeedTime = this.networkManager.currentTime; speedIsActive = true; break; }  double speed = Math.sqrt(NumberConversions.square(to.getX() - from.getX()) + NumberConversions.square(to.getZ() - from.getZ())); if (this.lastKeepAlivePacketReceivedTime + 1000L > this.networkManager.currentTime) { double speedWithLag = speed / packetDiff; if (speedWithLag > limit) { if (speedWithLag >= this.lastSpeedMoved) { if (!speedIsActive && this.networkManager.currentTime < this.lastSpeedTime + 2000L) { if (this.hackDebug) Bukkit.getLogger().severe("[" + this.networkManager.currentTime + "] " + this.player.getName() + " was given grace period.");  } else { boolean isFalsePositive = false; double roundedFromX = Math.round(from.getX() * 10000.0D) / 10000.0D; double roundedFromZ = Math.round(from.getZ() * 10000.0D) / 10000.0D; double roundedToX = Math.round(to.getX() * 10000.0D) / 10000.0D; double roundedToZ = Math.round(to.getZ() * 10000.0D) / 10000.0D; if (roundedFromX == roundedToX || roundedFromZ == roundedToZ) { isFalsePositive = true; if (this.hackDebug) Bukkit.getLogger().severe("[" + this.networkManager.currentTime + "] " + this.player.getName() + " false positive 1");  } else if (this.lastBlockGlitchFromX == roundedFromX || this.lastBlockGlitchFromZ == roundedFromZ || this.lastBlockGlitchFromX == roundedToX || this.lastBlockGlitchFromZ == roundedToX) { isFalsePositive = true; if (this.hackDebug) Bukkit.getLogger().severe("[" + this.networkManager.currentTime + "] " + this.player.getName() + " false positive 2");  } else if (this.lastBlockGlitchToX == roundedFromX || this.lastBlockGlitchToZ == roundedFromZ || this.lastBlockGlitchToX == roundedToX || this.lastBlockGlitchToZ == roundedToX) { isFalsePositive = true; if (this.hackDebug) Bukkit.getLogger().severe("[" + this.networkManager.currentTime + "] " + this.player.getName() + " false positive 2");  }  if (!isFalsePositive) { this.lastBlockGlitchFromX = roundedFromX; this.lastBlockGlitchFromZ = roundedFromZ; this.lastBlockGlitchToX = roundedToX; this.lastBlockGlitchToZ = roundedToZ; if (this.hackDebug) Bukkit.getLogger().severe("[" + this.networkManager.currentTime + "] " + this.player.getName() + " was caught sprint hacking with distance " + (speed / packetDiff));  if (++this.numOfSpeedPacketsCounted >= ((this.lastHitTime + 1500L > this.networkManager.currentTime) ? this.maxHitSpeedPacketCount : this.maxNotHitSpeedPacketCount)) { Bukkit.getPluginManager().callEvent(new GCheatEvent(this.player.getBukkitEntity(), GCheatEvent.Type.DEBUG, GCheatEvent.Level.ADMIN, this.player.getName() + " is speed hacking. ADebug " + from.getX() + " " + from.getY() + " " + from.getZ())); Bukkit.getPluginManager().callEvent(new GCheatEvent(this.player.getBukkitEntity(), GCheatEvent.Type.DEBUG, GCheatEvent.Level.ADMIN, this.player.getName() + " is speed hacking. ADebug2 " + to.getX() + " " + to.getY() + " " + to.getZ())); Bukkit.getPluginManager().callEvent(new GCheatEvent(this.player.getBukkitEntity(), GCheatEvent.Type.SPEED, GCheatEvent.Level.ADMIN, this.player.getName() + " is speed hacking. Type C VL " + (Math.round(speedWithLag / limit * 10.0D) / 10.0D))); this.numOfSpeedPacketsCounted = 0; }  } else { this.numOfSpeedPacketsCounted = 0; }  }  } else if (++this.numOfNotHitPackets >= 3) { this.numOfSpeedPacketsCounted = 0; if (this.hackDebug) Bukkit.getLogger().info(this.player.getName() + " was reset to not being hit 1.");  }  } else { if (++this.numOfNotHitPackets >= 3) { this.numOfSpeedPacketsCounted = 0; if (this.hackDebug) Bukkit.getLogger().info(this.player.getName() + " was reset to not being hit 2.");  }  if (this.lastHitTime + 1500L < this.networkManager.currentTime) this.lastHitTime = -1L;  }  } else if (this.hackDebug) { Bukkit.getLogger().info(this.player.getName() + " is lagging."); }  this.lastSpeedMoved = speed / packetDiff; } else if (this.hackDebug) { Bukkit.getLogger().info(getPlayer().getName() + " is immune from explosion."); }  } else if (this.hackDebug) { Bukkit.getLogger().info(getPlayer().getName() + " just teleported."); }   this.lastPacketTypeReceived = 'f'; if (this.lastValidX == -1.0D) { this.lastValidX = from.getX(); this.lastValidY = from.getY(); this.lastValidZ = from.getZ(); }  }  if ((this.isDigging && to.getX() != this.player.locX) || to.getZ() != this.player.locZ) this.digHorizontalMovement++;  if (SpigotConfig.playerMoveEventEnabled) { PlayerMoveEvent event = new PlayerMoveEvent(craftPlayer, from, to); this.server.getPluginManager().callEvent(event); if (event.isCancelled()) { this.player.playerConnection.sendPacket(new PacketPlayOutPosition(from.getX(), from.getY() + 1.6200000047683716D, from.getZ(), from.getYaw(), from.getPitch(), false)); return; }  if (!to.equals(event.getTo()) && !event.isCancelled()) { this.player.getBukkitEntity().teleport(event.getTo(), PlayerTeleportEvent.TeleportCause.UNKNOWN); return; }  }  if (!from.equals(getPlayer().getLocation()) && this.justTeleported) { this.justTeleported = false; return; }  } else if (this.lastCalculatedHalfSecondTime + 500L < this.networkManager.currentTime) { this.lastCalculatedHalfSecondTime = this.networkManager.currentTime; this.hasMovedInHalfSecond = false; }  if (this.checkMovement && !this.player.dead) { if (this.player.frozen) { float yaw = this.player.yaw; float pitch = this.player.pitch; if (packetplayinflying.hasLook) { yaw = packetplayinflying.yaw; pitch = packetplayinflying.pitch; }  this.player.setLocation(this.player.locX, this.player.locY, this.player.locZ, yaw, pitch); this.minecraftServer.getPlayerList().d(this.player); return; }  if (this.player.vehicle != null) { float f = this.player.yaw; float f1 = this.player.pitch; this.player.vehicle.ac(); double d1 = this.player.locX; double d2 = this.player.locY; double d3 = this.player.locZ; if (packetplayinflying.k()) { f = packetplayinflying.g(); f1 = packetplayinflying.h(); }  this.player.onGround = packetplayinflying.i(); if (this.networkManager.getVersion() < 107) this.player.i();  this.player.V = 0.0F; this.player.setLocation(d1, d2, d3, f, f1); if (this.player.vehicle != null) this.player.vehicle.ac();  this.minecraftServer.getPlayerList().d(this.player); if (this.checkMovement) { this.y = this.player.locX; this.z = this.player.locY; this.q = this.player.locZ; }  worldserver.playerJoinedWorld(this.player); return; }  if (this.player.isSleeping()) { if (this.networkManager.getVersion() < 107) this.player.i();  this.player.setLocation(this.y, this.z, this.q, this.player.yaw, this.player.pitch); worldserver.playerJoinedWorld(this.player); return; }  double d0 = this.player.locY; this.y = this.player.locX; this.z = this.player.locY; this.q = this.player.locZ; double d1 = this.player.locX; double d2 = this.player.locY; double d3 = this.player.locZ; float f2 = this.player.yaw; float f3 = this.player.pitch; boolean onGround = this.player.onGround; if (packetplayinflying.j() && packetplayinflying.d() == -999.0D && packetplayinflying.f() == -999.0D) packetplayinflying.a(false);  if (packetplayinflying.j()) { d1 = packetplayinflying.c(); d2 = packetplayinflying.d(); d3 = packetplayinflying.e(); double d4 = packetplayinflying.f() - packetplayinflying.d(); if (!this.player.isSleeping() && (d4 > 1.65D || d4 < 0.1D)) { disconnect("Illegal stance"); c.warn(this.player.getName() + " had an illegal stance: " + d4); return; }  if (Math.abs(packetplayinflying.c()) > 3.2E7D || Math.abs(packetplayinflying.e()) > 3.2E7D) { disconnect("Illegal position"); return; }  }  if (packetplayinflying.k()) { f2 = packetplayinflying.g(); f3 = packetplayinflying.h(); }  if (this.networkManager.getVersion() < 107) this.player.i();  this.player.V = 0.0F; this.player.setLocation(this.y, this.z, this.q, f2, f3); if (!this.checkMovement) return;  double d4 = d1 - this.player.locX; double d5 = d2 - this.player.locY; double d6 = d3 - this.player.locZ; double d7 = Math.max(Math.abs(d4), Math.abs(this.player.motX)); double d8 = Math.max(Math.abs(d5), Math.abs(this.player.motY)); double d9 = Math.max(Math.abs(d6), Math.abs(this.player.motZ)); double d10 = d7 * d7 + d8 * d8 + d9 * d9; if (d10 > SpigotConfig.movedTooQuicklyThreshold && this.checkMovement && (!this.minecraftServer.N() || !this.minecraftServer.M().equals(this.player.getName()))) { c.warn(this.player.getName() + " moved too quickly! " + d4 + "," + d5 + "," + d6 + " (" + d7 + ", " + d8 + ", " + d9 + ")"); a(this.y, this.z, this.q, this.player.yaw, this.player.pitch); return; }  AxisAlignedBB preBB = getBoundingBoxRounded(); boolean flag = worldserver.getCubes(this.player, preBB).isEmpty(); if (this.player.onGround && !packetplayinflying.i() && d5 > 0.0D) this.player.applyExhaustion(0.2F);  if (!this.player.abilities.canFly && !this.minecraftServer.getAllowFlight()) { boolean teleport = (this.networkManager.currentTime - this.positionSentTime < 5000L); double horizontalSpeed = this.horizontalSpeed; double blockFriction = this.blockFriction; if (onGround) { horizontalSpeed *= 1.3D; blockFriction *= 0.91D; horizontalSpeed *= 0.16277136D / blockFriction * blockFriction * blockFriction; if (isAntiCheatActivated && !packetplayinflying.i() && d5 > 1.0E-4D) { horizontalSpeed += 0.2D; MobEffect jumpBoost = this.player.getEffect(MobEffectList.JUMP); if (!teleport && !this.player.world.c(this.player.boundingBox.grow(0.5D, 0.249D, 0.5D).d(0.0D, 0.25D, 0.0D)) && jumpBoost == null) { double kb = 0.0D; for (PacketPlayOutEntityVelocity packet : this.velocitiesSent) { double packetY = packet.c / 8000.0D; if (packetY > 0.0D && (kb == 0.0D || packetY < kb)) kb = packetY;  }  if (kb == 0.0D && d5 < 0.15D) { if (this.miniJumpAmount += 20 > 70) { this.miniJumpAmount = 0; String msg = String.format("%s uses minijumps (%.3f) at %.1f,%.1f,%.1f", new Object[] { this.player.getName(), Double.valueOf(d5), Double.valueOf(d1), Double.valueOf(d2), Double.valueOf(d3) }); Bukkit.getPluginManager().callEvent(new GCheatEvent(this.player.getBukkitEntity(), GCheatEvent.Type.CRIT, GCheatEvent.Level.ADMIN, msg)); }  } else if (d5 < 0.41999998688697815D) { if (kb > 0.1D && d5 < kb * 0.99D && this.reducedKbAmount += 30 > 35) { long percent = Math.round(100.0D * d5 / kb); String msg = String.format("%s reduces their KB (%d%% %.2f/%.2f)", new Object[] { this.player.getName(), Long.valueOf(percent), Double.valueOf(d5), Double.valueOf(kb) }); Bukkit.getPluginManager().callEvent(new GCheatEvent(this.player.getBukkitEntity(), GCheatEvent.Type.ANTI_KB, GCheatEvent.Level.ADMIN, msg)); }  }  }  }  } else { horizontalSpeed = 0.026D; blockFriction = 0.91D; }  if (d4 != 0.0D || d6 != 0.0D) { double horizontalMove = Math.sqrt(d4 * d4 + d6 * d6); if (this.player.inWater) horizontalSpeed *= 3.0D;  if (isAntiCheatActivated && !teleport) { double speedup = (horizontalMove - this.previousHorizontalMove) / horizontalSpeed; if (speedup > 1.1D) { double kbSqrd = 0.0D; for (PacketPlayOutEntityVelocity packet : this.velocitiesSent) { double x = packet.b / 8000.0D; double z = packet.d / 8000.0D; double xz = x * x + z * z; if (xz > kbSqrd) kbSqrd = xz;  }  if (kbSqrd != 0.0D) { horizontalSpeed += Math.sqrt(kbSqrd); speedup = (horizontalMove - this.previousHorizontalMove) / horizontalSpeed; }  }  if (speedup > 1.1D) { boolean blocksNear = this.player.world.c(this.player.boundingBox.grow(1.5D, 1.5D, 1.5D)); if (!blocksNear) { if (this.flyTypeDAmount += 20 > 90) { this.flyTypeDAmount = 0; String msg = String.format("%s was caught flying Type D (%d%%) at %.1f,%.1f,%.1f", new Object[] { this.player.getName(), Integer.valueOf((int)(100.0D * speedup)), Double.valueOf(d1), Double.valueOf(d2), Double.valueOf(d3) }); Bukkit.getPluginManager().callEvent(new GCheatEvent(this.player.getBukkitEntity(), GCheatEvent.Type.FLY, GCheatEvent.Level.ADMIN, msg)); }  } else if (speedup > 1.5D && this.speedTypeDAmount += 20 > 90) { this.speedTypeDAmount = 0; String msg = String.format("%s was caught speeding Type D (%d%%) at %.1f,%.1f,%.1f", new Object[] { this.player.getName(), Integer.valueOf((int)(100.0D * speedup)), Double.valueOf(d1), Double.valueOf(d2), Double.valueOf(d3) }); Bukkit.getPluginManager().callEvent(new GCheatEvent(this.player.getBukkitEntity(), GCheatEvent.Type.SPEED, GCheatEvent.Level.ADMIN, msg)); }  }  }  this.previousHorizontalMove = horizontalMove * blockFriction; int blockX = NumberConversions.floor(d1); int blockY = NumberConversions.floor(d2); int blockZ = NumberConversions.floor(d3); if (blockX != this.blockFrictionX || blockY != this.blockFrictionY || blockZ != this.blockFrictionZ) { this.blockFriction = (this.player.world.getType(blockX, blockY - 1, blockZ)).frictionFactor; this.blockFrictionX = blockX; this.blockFrictionY = blockY; this.blockFrictionZ = blockZ; }  }  }  this.player.move(d4, d5, d6); this.player.onGround = packetplayinflying.i(); this.player.checkMovement(d4, d5, d6); double d11 = d5; d4 = d1 - this.player.locX; d5 = d2 - this.player.locY; if (d5 > -0.5D || d5 < 0.5D) d5 = 0.0D;  d6 = d3 - this.player.locZ; d10 = d4 * d4 + d5 * d5 + d6 * d6; boolean flag1 = false; if (d10 > SpigotConfig.movedWronglyThreshold && !this.player.isSleeping() && !this.player.playerInteractManager.isCreative()) { flag1 = true; c.warn(this.player.getName() + " moved wrongly!"); }  this.player.setLocation(d1, d2, d3, f2, f3); double dx = this.y - d1; double dy = this.z - d2; double dz = this.q - d3; if (!this.player.playerInteractManager.isCreative() && (dx != 0.0D || dy != 0.0D || dz != 0.0D)) { double m = Math.max(Math.max(Math.abs(dx) / 0.6000000238418579D, Math.abs(dy) / 1.6200000047683716D), Math.abs(dz) / 0.6000000238418579D) / 0.99D; dx /= m; dy /= m; dz /= m; AxisAlignedBB bb = getBoundingBoxRounded(); for (int i = 0; i < m; i++) { List<AxisAlignedBB> list = worldserver.getCubes(this.player, bb); if (!list.isEmpty()) for (AxisAlignedBB collision : list) { if (!preBB.b(collision)) { if (i > 0 && m > 2.0D) if (dx == 0.0D && dz == 0.0D) { String msg = String.format("%s tries to VClip %.1f blocks at %.1f,%.1f,%.1f", new Object[] { this.player.getName(), Double.valueOf(d2 - this.z), Double.valueOf(this.y), Double.valueOf(this.z), Double.valueOf(this.q) }); Bukkit.getPluginManager().callEvent(new GCheatEvent(this.player.getBukkitEntity(), GCheatEvent.Type.PHASE, GCheatEvent.Level.ADMIN, msg)); } else { String msg = String.format("%s is trying to phase at %.1f,%.1f,%.1f", new Object[] { this.player.getName(), Double.valueOf(this.y), Double.valueOf(this.z), Double.valueOf(this.q) }); Bukkit.getPluginManager().callEvent(new GCheatEvent(this.player.getBukkitEntity(), GCheatEvent.Type.PHASE, GCheatEvent.Level.ADMIN, msg)); }   a(this.y, this.z, this.q, f2, f3); return; }  }   bb.d(dx, dy, dz); }  }  if (this.flyTypeDAmount > 0) this.flyTypeDAmount--;  if (this.speedTypeDAmount > 0) this.speedTypeDAmount--;  if (this.miniJumpAmount > 0) this.miniJumpAmount--;  if (this.reducedKbAmount > 0) this.reducedKbAmount--;  if (!this.minecraftServer.getAllowFlight() && !this.player.abilities.canFly && touchingAir && !this.player.frozen) { if (d11 >= -0.03125D) { this.f++; if (this.f > 80) { Bukkit.getPluginManager().callEvent(new GCheatEvent(this.player.getBukkitEntity(), GCheatEvent.Type.HOVER, GCheatEvent.Level.ADMIN, this.player.getName() + " was kicked for floating too long!")); c.warn(this.player.getName() + " was kicked for floating too long!"); disconnect("Flying is not enabled on this server"); return; }  }  } else { this.f = 0; }  this.player.onGround = packetplayinflying.i(); this.minecraftServer.getPlayerList().d(this.player); this.player.b(this.player.locY - d0, packetplayinflying.i()); } else if (this.e % 20 == 0) { a(this.y, this.z, this.q, this.player.yaw, this.player.pitch); }  }  } private AxisAlignedBB getBoundingBoxRounded() { AxisAlignedBB bb = this.player.boundingBox.clone(); bb.a = Math.round(bb.a * 1000000.0D) / 1000000.0D; bb.b = Math.round(bb.b * 1000000.0D) / 1000000.0D; bb.c = Math.round(bb.c * 1000000.0D) / 1000000.0D; bb.d = Math.round(bb.d * 1000000.0D) / 1000000.0D; bb.e = Math.round(bb.e * 1000000.0D) / 1000000.0D; bb.f = Math.round(bb.f * 1000000.0D) / 1000000.0D; return bb; } public void a(double d0, double d1, double d2, float f, float f1) { CraftPlayer craftPlayer = getPlayer(); Location from = craftPlayer.getLocation(); Location to = new Location(getPlayer().getWorld(), d0, d1, d2, f, f1); PlayerTeleportEvent event = new PlayerTeleportEvent(craftPlayer, from, to, PlayerTeleportEvent.TeleportCause.UNKNOWN); this.server.getPluginManager().callEvent(event); from = event.getFrom(); to = event.isCancelled() ? from : event.getTo(); teleport(to); } public void teleport(Location dest) { double d0 = dest.getX(); double d1 = dest.getY(); double d2 = dest.getZ(); float f = dest.getYaw(); float f1 = dest.getPitch(); if (Float.isNaN(f)) f = 0.0F;  if (Float.isNaN(f1)) f1 = 0.0F;  this.lastPosX = d0; this.lastPosY = d1; this.lastPosZ = d2; this.lastYaw = f; this.lastPitch = f1; this.justTeleported = true; this.checkMovement = false; this.y = d0; this.z = d1; this.q = d2; this.player.setLocation(d0, d1, d2, f, f1); if (this.player.frozen) { this.player.playerConnection.sendPacket(new PacketPlayOutEntityTeleport(this.player.freezeEntityId, MathHelper.floor(d0 * 32.0D), MathHelper.floor(d1 * 32.0D), MathHelper.floor(d2 * 32.0D), false, false, true, null)); this.checkMovement = true; } else { this.player.playerConnection.sendPacket(new PacketPlayOutPosition(d0, d1 + 1.6200000047683716D, d2, f, f1, false)); }  this.lastGroundYValue = -1.0D; if (this.player.bossBarMessage != null) { String message = this.player.bossBarMessage; this.player.removeBossBar(); this.player.setBossBar(message, this.player.bossBarHealth); }  } public void a(PacketPlayInBlockDig packetplayinblockdig) { if (!this.player.isAlive()) return;  WorldServer worldserver = this.minecraftServer.getWorldServer(this.player.dimension); if (this.hackDebug) Bukkit.getLogger().info(getPlayer().getName() + " sent dig value " + packetplayinblockdig.g());  if (getPlayer().getGameMode() == GameMode.SURVIVAL) if (packetplayinblockdig.g() == 0) { this.isDigging = true; this.typeRThreshold = 0; this.digHorizontalMovement = 0; } else if (packetplayinblockdig.g() == 1 || packetplayinblockdig.g() == 2) { this.isDigging = false; }   this.player.v(); if (packetplayinblockdig.g() == 4) { if (this.lastDropTick != MinecraftServer.currentTick) { this.dropCount = 0; this.lastDropTick = MinecraftServer.currentTick; } else { this.dropCount++; if (this.dropCount >= 20) { Bukkit.getPluginManager().callEvent(new GCheatEvent(this.player.getBukkitEntity(), GCheatEvent.Type.INVENTORY, GCheatEvent.Level.ADMIN, this.player.getName() + " dropped their items too quickly!")); c.warn(this.player.getName() + " dropped their items too quickly!"); disconnect("You dropped your items too quickly (Hacking?)"); return; }  }  this.player.a(false); } else if (packetplayinblockdig.g() == 3) { this.player.a(true); } else if (packetplayinblockdig.g() == 5) { this.player.bA(); } else { boolean flag = false; if (packetplayinblockdig.g() == 0) flag = true;  if (packetplayinblockdig.g() == 1) flag = true;  if (packetplayinblockdig.g() == 2) flag = true;  int i = packetplayinblockdig.c(); int j = packetplayinblockdig.d(); int k = packetplayinblockdig.e(); if (flag) { double d0 = this.player.locX - i + 0.5D; double d1 = this.player.locY - j + 0.5D + 1.5D; double d2 = this.player.locZ - k + 0.5D; double d3 = d0 * d0 + d1 * d1 + d2 * d2; if (d3 > 36.0D) return;  if (j >= this.minecraftServer.getMaxBuildHeight()) return;  }  if (packetplayinblockdig.g() == 0) { if (!this.minecraftServer.a(worldserver, i, j, k, this.player)) { this.player.playerInteractManager.dig(i, j, k, packetplayinblockdig.f()); } else { CraftEventFactory.callPlayerInteractEvent(this.player, Action.LEFT_CLICK_BLOCK, i, j, k, packetplayinblockdig.f(), this.player.inventory.getItemInHand()); this.player.playerConnection.sendPacket(new PacketPlayOutBlockChange(i, j, k, worldserver)); TileEntity tileentity = worldserver.getTileEntity(i, j, k); if (tileentity != null) this.player.playerConnection.sendPacket(tileentity.getUpdatePacket());  }  } else if (packetplayinblockdig.g() == 2) { this.player.playerInteractManager.a(i, j, k); if (worldserver.getType(i, j, k).getMaterial() != Material.AIR) this.player.playerConnection.sendPacket(new PacketPlayOutBlockChange(i, j, k, worldserver));  } else if (packetplayinblockdig.g() == 1) { this.player.playerInteractManager.c(i, j, k); if (worldserver.getType(i, j, k).getMaterial() != Material.AIR) this.player.playerConnection.sendPacket(new PacketPlayOutBlockChange(i, j, k, worldserver));  }  }  } public void a(PacketPlayInBlockPlace packetplayinblockplace) { if (packetplayinblockplace.hand == 1) return;  boolean throttled = false; if (this.lastPlace != -1L && packetplayinblockplace.timestamp - this.lastPlace < 30L && this.packets++ >= 4) { throttled = true; } else if (packetplayinblockplace.timestamp - this.lastPlace >= 30L || this.lastPlace == -1L) { this.lastPlace = packetplayinblockplace.timestamp; this.packets = 0; }  WorldServer worldserver = this.minecraftServer.getWorldServer(this.player.dimension); if (!this.player.isAlive()) return;  if (packetplayinblockplace.getFace() == 255) { if (packetplayinblockplace.getItemStack() != null && packetplayinblockplace.getItemStack().getItem() == this.lastMaterial && this.lastPacket != null && packetplayinblockplace.timestamp - this.lastPacket.longValue() < 100L) { this.lastPacket = null; return; }  if (this.networkManager.getVersion() >= 107 && this.lastPacket != null && packetplayinblockplace.timestamp - this.lastPacket.longValue() < 100L) { this.lastPacket = null; return; }  } else { this.lastMaterial = (packetplayinblockplace.getItemStack() == null) ? null : packetplayinblockplace.getItemStack().getItem(); this.lastPacket = Long.valueOf(packetplayinblockplace.timestamp); }  boolean always = false; ItemStack itemstack = this.player.inventory.getItemInHand(); boolean flag = false; int i = packetplayinblockplace.c(); int j = packetplayinblockplace.d(); int k = packetplayinblockplace.e(); int l = packetplayinblockplace.getFace(); this.player.v(); if (packetplayinblockplace.getFace() == 255) { if (itemstack == null) return;  int itemstackAmount = itemstack.count; if (!throttled) { PlayerInteractEvent event = CraftEventFactory.callPlayerInteractEvent(this.player, Action.RIGHT_CLICK_AIR, itemstack); if (event.useItemInHand() != Event.Result.DENY) this.player.playerInteractManager.useItem(this.player, this.player.world, itemstack);  }  always = (itemstack.count != itemstackAmount || itemstack.getItem() == Item.getItemOf(Blocks.WATER_LILY)); } else if (packetplayinblockplace.d() >= this.minecraftServer.getMaxBuildHeight() - 1 && (packetplayinblockplace.getFace() == 1 || packetplayinblockplace.d() >= this.minecraftServer.getMaxBuildHeight())) { ChatMessage chatmessage = new ChatMessage("build.tooHigh", new Object[] { Integer.valueOf(this.minecraftServer.getMaxBuildHeight()) }); chatmessage.getChatModifier().setColor(EnumChatFormat.RED); this.player.playerConnection.sendPacketProtocolHack(new PacketPlayOutChat(chatmessage)); flag = true; } else { Location eyeLoc = getPlayer().getEyeLocation(); double reachDistance = NumberConversions.square(eyeLoc.getX() - i) + NumberConversions.square(eyeLoc.getY() - j) + NumberConversions.square(eyeLoc.getZ() - k); if (reachDistance > ((getPlayer().getGameMode() == GameMode.CREATIVE) ? 49 : 36)) return;  if (throttled || !this.player.playerInteractManager.interact(this.player, worldserver, itemstack, i, j, k, l, packetplayinblockplace.h(), packetplayinblockplace.i(), packetplayinblockplace.j())) always = true;  flag = true; }  if (flag) { this.player.playerConnection.sendPacket(new PacketPlayOutBlockChange(i, j, k, worldserver)); if (l == 0) j--;  if (l == 1) j++;  if (l == 2) k--;  if (l == 3) k++;  if (l == 4) i--;  if (l == 5) i++;  this.player.playerConnection.sendPacket(new PacketPlayOutBlockChange(i, j, k, worldserver)); }  itemstack = this.player.inventory.getItemInHand(); if (itemstack != null && itemstack.count <= 0) { this.player.inventory.items[this.player.inventory.itemInHandIndex] = null; itemstack = null; }  if (itemstack == null || itemstack.n() == 0) { this.player.g = true; this.player.inventory.items[this.player.inventory.itemInHandIndex] = ItemStack.b(this.player.inventory.items[this.player.inventory.itemInHandIndex]); Slot slot = this.player.activeContainer.getSlot(this.player.inventory, this.player.inventory.itemInHandIndex); this.player.activeContainer.b(); this.player.g = false; if (!ItemStack.matches(this.player.inventory.getItemInHand(), packetplayinblockplace.getItemStack()) || always) sendPacketProtocolHack(new PacketPlayOutSetSlot(this.player.activeContainer.windowId, slot.rawSlotIndex, this.player.inventory.getItemInHand()));  }  } public void a(IChatBaseComponent ichatbasecomponent) { if (this.processedDisconnect) return;  this.processedDisconnect = true; c.info(this.player.getName() + " lost connection: " + ichatbasecomponent.c()); this.minecraftServer.az(); this.player.n(); String quitMessage = this.minecraftServer.getPlayerList().disconnect(this.player); if (quitMessage != null && quitMessage.length() > 0) this.minecraftServer.getPlayerList().sendMessage(CraftChatMessage.fromString(quitMessage));  if (this.minecraftServer.N() && this.player.getName().equals(this.minecraftServer.M())) { c.info("Stopping singleplayer server as player logged out"); this.minecraftServer.safeShutdown(); }  } public void sendPacketProtocolHack(Packet packet) { if (this.networkManager.getVersion() >= 17) { if (packet instanceof PacketPlayOutWindowItems) { PacketPlayOutWindowItems items = (PacketPlayOutWindowItems)packet; if (this.player.activeContainer instanceof ContainerEnchantTable && this.player.activeContainer.windowId == items.a) { ItemStack[] old = items.b; items.b = new ItemStack[old.length + 1]; items.b[0] = old[0]; System.arraycopy(old, 1, items.b, 2, old.length - 1); items.b[1] = new ItemStack(Items.INK_SACK, 3, 4); }  } else if (packet instanceof PacketPlayOutSetSlot) { PacketPlayOutSetSlot items = (PacketPlayOutSetSlot)packet; if (this.player.activeContainer instanceof ContainerEnchantTable && this.player.activeContainer.windowId == items.a) if (items.b >= 1) items.b++;   }  if (this.networkManager.getVersion() >= 107) if (packet instanceof PacketPlayOutWindowItems) { PacketPlayOutWindowItems items = (PacketPlayOutWindowItems)packet; if (this.player.activeContainer instanceof ContainerBrewingStand && this.player.activeContainer.windowId == items.a) { ItemStack[] old = items.b; items.b = new ItemStack[old.length + 1]; System.arraycopy(old, 0, items.b, 0, 4); System.arraycopy(old, 4, items.b, 5, old.length - 4); items.b[4] = new ItemStack(Items.BLAZE_POWDER); }  } else if (packet instanceof PacketPlayOutSetSlot) { PacketPlayOutSetSlot items = (PacketPlayOutSetSlot)packet; if (this.player.activeContainer instanceof ContainerBrewingStand && this.player.activeContainer.windowId == items.a && items.b >= 4) items.b++;  }   }  if (packet instanceof PacketPlayOutChat) { PacketPlayOutChat packetplayoutchat = (PacketPlayOutChat)packet; EnumChatVisibility enumchatvisibility = this.player.getChatFlags(); if (enumchatvisibility == EnumChatVisibility.HIDDEN) return;  if (enumchatvisibility == EnumChatVisibility.SYSTEM && !packetplayoutchat.d()) return;  }  if (packet == null) return;  if (packet instanceof PacketPlayOutSpawnPosition) { PacketPlayOutSpawnPosition packet6 = (PacketPlayOutSpawnPosition)packet; this.player.compassTarget = new Location(getPlayer().getWorld(), packet6.x, packet6.y, packet6.z); }  try { this.networkManager.handle(packet, new GenericFutureListener[0]); } catch (Throwable throwable) { CrashReport crashreport = CrashReport.a(throwable, "Sending packet"); CrashReportSystemDetails crashreportsystemdetails = crashreport.a("Packet being sent"); crashreportsystemdetails.a("Packet class", new CrashReportConnectionPacketClass(this, packet)); throw new ReportedException(crashreport); }  } public void sendPacket(Packet packet) { if (packet == null) return;  if (packet instanceof PacketPlayOutEntityVelocity && ((PacketPlayOutEntityVelocity)packet).a == this.player.getId()) { this.velocitiesSent.add((PacketPlayOutEntityVelocity)packet); this.velocitySentTimes.add(Long.valueOf(System.currentTimeMillis())); }  if (packet instanceof PacketPlayOutPosition) this.positionSentTime = System.currentTimeMillis();  try { this.networkManager.handle(packet, new GenericFutureListener[0]); } catch (Throwable throwable) { CrashReport crashreport = CrashReport.a(throwable, "Sending packet"); CrashReportSystemDetails crashreportsystemdetails = crashreport.a("Packet being sent"); crashreportsystemdetails.a("Packet class", new CrashReportConnectionPacketClass(this, packet)); throw new ReportedException(crashreport); }  } public void a(PacketPlayInHeldItemSlot packetplayinhelditemslot) { if (!this.player.isAlive()) return;  if (packetplayinhelditemslot.c() >= 0 && packetplayinhelditemslot.c() < PlayerInventory.getHotbarSize()) { PlayerItemHeldEvent event = new PlayerItemHeldEvent(getPlayer(), this.player.inventory.itemInHandIndex, packetplayinhelditemslot.c()); this.server.getPluginManager().callEvent(event); if (event.isCancelled()) { sendPacket(new PacketPlayOutHeldItemSlot(this.player.inventory.itemInHandIndex)); this.player.v(); return; }  this.player.inventory.itemInHandIndex = packetplayinhelditemslot.c(); this.player.v(); } else { Bukkit.getPluginManager().callEvent(new GCheatEvent(this.player.getBukkitEntity(), GCheatEvent.Type.INVENTORY, GCheatEvent.Level.ADMIN, this.player.getName() + " invalid hotbar selection.")); c.warn(this.player.getName() + " tried to set an invalid carried item"); disconnect("Invalid hotbar selection (Hacking?)"); }  } public void a(PacketPlayInChat packetplayinchat) { if (!this.player.isAlive() || this.player.getChatFlags() == EnumChatVisibility.HIDDEN) { ChatMessage chatmessage = new ChatMessage("chat.cannotSend", new Object[0]); chatmessage.getChatModifier().setColor(EnumChatFormat.RED); sendPacketProtocolHack(new PacketPlayOutChat(chatmessage)); } else { this.player.v(); String s = packetplayinchat.c(); s = StringUtils.normalizeSpace(s); for (int i = 0; i < s.length(); i++) { if (!SharedConstants.isAllowedChatCharacter(s.charAt(i))) { if (packetplayinchat.a()) { Waitable waitable = new Waitable() { protected Object evaluate() { PlayerConnection.this.disconnect("Illegal characters in chat"); return null; } }
              ; this.minecraftServer.processQueue.add(waitable); try { waitable.get(); } catch (InterruptedException e) { Thread.currentThread().interrupt(); } catch (ExecutionException e) { throw new RuntimeException(e); }  } else { disconnect("Illegal characters in chat"); }  return; }  }  if (!packetplayinchat.a()) { try { this.minecraftServer.server.playerCommandState = true; handleCommand(s); } finally { this.minecraftServer.server.playerCommandState = false; }  } else if (s.isEmpty()) { c.warn(this.player.getName() + " tried to send an empty message"); } else if (getPlayer().isConversing()) { final String message = s; this.minecraftServer.processQueue.add(new Waitable() { protected Object evaluate() { PlayerConnection.this.getPlayer().acceptConversationInput(message); return null; } }
          ); } else if (this.player.getChatFlags() == EnumChatVisibility.SYSTEM) { ChatMessage chatmessage = new ChatMessage("chat.cannotSend", new Object[0]); chatmessage.getChatModifier().setColor(EnumChatFormat.RED); sendPacketProtocolHack(new PacketPlayOutChat(chatmessage)); } else { chat(s, true); }  boolean counted = true; for (String exclude : SpigotConfig.spamExclusions) { if (exclude != null && s.startsWith(exclude)) { counted = false; break; }  }  if (counted && chatSpamField.addAndGet(this, 20) > 200 && !this.minecraftServer.getPlayerList().isOp(this.player.getProfile())) if (packetplayinchat.a()) { Waitable waitable = new Waitable() { protected Object evaluate() { PlayerConnection.this.disconnect("disconnect.spam"); return null; } }
            ; this.minecraftServer.processQueue.add(waitable); try { waitable.get(); } catch (InterruptedException e) { Thread.currentThread().interrupt(); } catch (ExecutionException e) { throw new RuntimeException(e); }  } else { disconnect("disconnect.spam"); }   }  } public void chat(String s, boolean async) { if (s.isEmpty() || this.player.getChatFlags() == EnumChatVisibility.HIDDEN) return;  if (!async && s.startsWith("/")) { handleCommand(s); } else if (this.player.getChatFlags() != EnumChatVisibility.SYSTEM) { CraftPlayer craftPlayer = getPlayer(); AsyncPlayerChatEvent event = new AsyncPlayerChatEvent(async, craftPlayer, s, new LazyPlayerSet()); this.server.getPluginManager().callEvent(event); if (PlayerChatEvent.getHandlerList().getRegisteredListeners().length != 0) { final PlayerChatEvent queueEvent = new PlayerChatEvent(craftPlayer, event.getMessage(), event.getFormat(), event.getRecipients()); queueEvent.setCancelled(event.isCancelled()); Waitable waitable = new Waitable() {
            protected Object evaluate() { Bukkit.getPluginManager().callEvent(queueEvent); if (queueEvent.isCancelled()) return null;  String message = String.format(queueEvent.getFormat(), new Object[] { queueEvent.getPlayer().getDisplayName(), queueEvent.getMessage() }); this.this$0.minecraftServer.console.sendMessage(message); if (((LazyPlayerSet)queueEvent.getRecipients()).isLazy()) { for (Object player : (this.this$0.minecraftServer.getPlayerList()).players) ((EntityPlayer)player).sendMessage(CraftChatMessage.fromString(message));  } else { for (Player player : queueEvent.getRecipients()) player.sendMessage(message);  }  return null; }
          }; if (async) { this.minecraftServer.processQueue.add(waitable); } else { waitable.run(); }  try { waitable.get(); } catch (InterruptedException e) { Thread.currentThread().interrupt(); } catch (ExecutionException e) { throw new RuntimeException("Exception processing chat event", e.getCause()); }  } else { if (event.isCancelled()) return;  s = String.format(event.getFormat(), new Object[] { event.getPlayer().getDisplayName(), event.getMessage() }); this.minecraftServer.console.sendMessage(s); if (((LazyPlayerSet)event.getRecipients()).isLazy()) { for (Object recipient : (this.minecraftServer.getPlayerList()).players) ((EntityPlayer)recipient).sendMessage(CraftChatMessage.fromString(s));  } else { for (Player recipient : event.getRecipients()) recipient.sendMessage(s);  }  }  }  } private void handleCommand(String s) { SpigotTimings.playerCommandTimer.startTiming(); if (SpigotConfig.logCommands) { this; c.info(this.player.getName() + " issued server command: " + s); }  CraftPlayer player = getPlayer(); PlayerCommandPreprocessEvent event = new PlayerCommandPreprocessEvent(player, s, new LazyPlayerSet()); this.server.getPluginManager().callEvent(event); if (event.isCancelled()) { SpigotTimings.playerCommandTimer.stopTiming(); return; }  try { if (this.server.dispatchCommand(event.getPlayer(), event.getMessage().substring(1))) { SpigotTimings.playerCommandTimer.stopTiming(); return; }  } catch (CommandException ex) { player.sendMessage(ChatColor.RED + "An internal error occurred while attempting to perform this command"); Logger.getLogger(PlayerConnection.class.getName()).log(Level.SEVERE, null, ex); SpigotTimings.playerCommandTimer.stopTiming(); return; }  SpigotTimings.playerCommandTimer.stopTiming(); } public void a(PacketPlayInArmAnimation packetplayinarmanimation) { if (!this.player.isAlive()) return;  this.player.v(); if (packetplayinarmanimation.d() == 1) { float f = 1.0F; float f1 = this.player.lastPitch + (this.player.pitch - this.player.lastPitch) * f; float f2 = this.player.lastYaw + (this.player.yaw - this.player.lastYaw) * f; double d0 = this.player.lastX + (this.player.locX - this.player.lastX) * f; double d1 = this.player.lastY + (this.player.locY - this.player.lastY) * f + 1.62D - this.player.height; double d2 = this.player.lastZ + (this.player.locZ - this.player.lastZ) * f; Vec3D vec3d = Vec3D.a(d0, d1, d2); float f3 = MathHelper.cos(-f2 * 0.017453292F - 3.1415927F); float f4 = MathHelper.sin(-f2 * 0.017453292F - 3.1415927F); float f5 = -MathHelper.cos(-f1 * 0.017453292F); float f6 = MathHelper.sin(-f1 * 0.017453292F); float f7 = f4 * f5; float f8 = f3 * f5; double d3 = (this.player.playerInteractManager.getGameMode() == EnumGamemode.CREATIVE) ? 5.0D : 4.5D; Vec3D vec3d1 = vec3d.add(f7 * d3, f6 * d3, f8 * d3); MovingObjectPosition movingobjectposition = this.player.world.rayTrace(vec3d, vec3d1, false); if (movingobjectposition == null || movingobjectposition.type != EnumMovingObjectType.BLOCK) CraftEventFactory.callPlayerInteractEvent(this.player, Action.LEFT_CLICK_AIR, this.player.inventory.getItemInHand());  PlayerAnimationEvent event = new PlayerAnimationEvent(getPlayer()); this.server.getPluginManager().callEvent(event); if (event.isCancelled()) return;  this.player.ba(); }  } public void a(PacketPlayInEntityAction packetplayinentityaction) { if (!this.player.isAlive()) return;  this.player.v(); if (packetplayinentityaction.d() == 1 || packetplayinentityaction.d() == 2) { PlayerToggleSneakEvent event = new PlayerToggleSneakEvent(getPlayer(), (packetplayinentityaction.d() == 1) ? 1 : 0); this.server.getPluginManager().callEvent(event); if (event.isCancelled()) return;  }  if (packetplayinentityaction.d() == 4 || packetplayinentityaction.d() == 5) { PlayerToggleSprintEvent event = new PlayerToggleSprintEvent(getPlayer(), (packetplayinentityaction.d() == 4) ? 1 : 0); this.server.getPluginManager().callEvent(event); if (event.isCancelled()) return;  }  if (packetplayinentityaction.d() == 1) { this.player.setSneaking(true); } else if (packetplayinentityaction.d() == 2) { this.player.setSneaking(false); } else if (packetplayinentityaction.d() == 4) { this.player.setSprinting(true); if (this.player.isBlocking()) this.player.bA();  } else if (packetplayinentityaction.d() == 5) { this.player.setSprinting(false); } else if (packetplayinentityaction.d() == 3) { this.player.a(false, true, true); } else if (packetplayinentityaction.d() == 6) { if (this.player.vehicle != null && this.player.vehicle instanceof EntityHorse) ((EntityHorse)this.player.vehicle).w(packetplayinentityaction.e());  } else if (packetplayinentityaction.d() == 7 && this.player.vehicle != null && this.player.vehicle instanceof EntityHorse) { ((EntityHorse)this.player.vehicle).g(this.player); }  } public void a(PacketPlayInCloseWindow packetplayinclosewindow) { if (!this.player.isAlive())
      return;
    CraftEventFactory.handleInventoryCloseEvent(this.player);

    this.player.m(); }


  public void a(PacketPlayInWindowClick packetplayinwindowclick) {
    if (!this.player.isAlive())
      return;
    this.player.v();
    if (!this.player.activeContainer.a(this.player))
      return;  if (this.player.activeContainer.windowId == packetplayinwindowclick.c() && this.player.activeContainer.c(this.player)) {

      if (packetplayinwindowclick.d() < -1 && packetplayinwindowclick.d() != -999) {
        return;
      }

      InventoryView inventory = this.player.activeContainer.getBukkitView();

      if (this.networkManager.getVersion() >= 17)
      {
        if (this.player.activeContainer instanceof ContainerEnchantTable) {

          if (packetplayinwindowclick.slot == 1) {

            this.player.updateInventory(this.player.activeContainer); return;
          }
          if (packetplayinwindowclick.slot > 1)
          {
            packetplayinwindowclick.slot--;
          }
        }
      }



      if (this.networkManager.getVersion() >= 107) {

        if (this.player.activeContainer instanceof ContainerBrewingStand) {
          if (packetplayinwindowclick.slot == 4) {
            this.player.updateInventory(this.player.activeContainer);
            return;
          }
          if (packetplayinwindowclick.slot > 4) {
            packetplayinwindowclick.slot--;
          }
        }

        if (packetplayinwindowclick.c() == 0 && packetplayinwindowclick.slot == 45) {
          this.player.updateInventory(this.player.activeContainer);

          return;
        }
      }

      InventoryType.SlotType type = CraftInventoryView.getSlotType(inventory, packetplayinwindowclick.d());

      InventoryClickEvent event = null;
      ClickType click = ClickType.UNKNOWN;
      InventoryAction action = InventoryAction.UNKNOWN;

      ItemStack itemstack = null;

      if (packetplayinwindowclick.d() == -1) {
        type = InventoryType.SlotType.OUTSIDE;
        click = (packetplayinwindowclick.e() == 0) ? ClickType.WINDOW_BORDER_LEFT : ClickType.WINDOW_BORDER_RIGHT;
        action = InventoryAction.NOTHING;
      } else if (packetplayinwindowclick.h() == 0) {
        if (packetplayinwindowclick.e() == 0) {
          click = ClickType.LEFT;
        } else if (packetplayinwindowclick.e() == 1) {
          click = ClickType.RIGHT;
        }
        if (packetplayinwindowclick.e() == 0 || packetplayinwindowclick.e() == 1) {
          action = InventoryAction.NOTHING;
          if (packetplayinwindowclick.d() == -999) {
            if (this.player.inventory.getCarried() != null) {
              action = (packetplayinwindowclick.e() == 0) ? InventoryAction.DROP_ALL_CURSOR : InventoryAction.DROP_ONE_CURSOR;
            }
          } else {
            Slot slot = this.player.activeContainer.getSlot(packetplayinwindowclick.d());
            if (slot != null) {
              ItemStack clickedItem = slot.getItem();
              ItemStack cursor = this.player.inventory.getCarried();
              if (clickedItem == null) {
                if (cursor != null) {
                  action = (packetplayinwindowclick.e() == 0) ? InventoryAction.PLACE_ALL : InventoryAction.PLACE_ONE;
                }
              } else if (slot.isAllowed(this.player)) {
                if (cursor == null) {
                  action = (packetplayinwindowclick.e() == 0) ? InventoryAction.PICKUP_ALL : InventoryAction.PICKUP_HALF;
                } else if (slot.isAllowed(cursor)) {
                  if (clickedItem.doMaterialsMatch(cursor) && ItemStack.equals(clickedItem, cursor)) {
                    int toPlace = (packetplayinwindowclick.e() == 0) ? cursor.count : 1;
                    toPlace = Math.min(toPlace, clickedItem.getMaxStackSize() - clickedItem.count);
                    toPlace = Math.min(toPlace, slot.inventory.getMaxStackSize() - clickedItem.count);
                    if (toPlace == 1) {
                      action = InventoryAction.PLACE_ONE;
                    } else if (toPlace == cursor.count) {
                      action = InventoryAction.PLACE_ALL;
                    } else if (toPlace < 0) {
                      action = (toPlace != -1) ? InventoryAction.PICKUP_SOME : InventoryAction.PICKUP_ONE;
                    } else if (toPlace != 0) {
                      action = InventoryAction.PLACE_SOME;
                    }
                  } else if (cursor.count <= slot.getMaxStackSize()) {
                    action = InventoryAction.SWAP_WITH_CURSOR;
                  }
                } else if (cursor.getItem() == clickedItem.getItem() && (!cursor.usesData() || cursor.getData() == clickedItem.getData()) && ItemStack.equals(cursor, clickedItem) &&
                  clickedItem.count >= 0 &&
                  clickedItem.count + cursor.count <= cursor.getMaxStackSize()) {

                  action = InventoryAction.PICKUP_ALL;
                }

              }

            }
          }
        }
      } else if (packetplayinwindowclick.h() == 1) {
        if (packetplayinwindowclick.e() == 0) {
          click = ClickType.SHIFT_LEFT;
        } else if (packetplayinwindowclick.e() == 1) {
          click = ClickType.SHIFT_RIGHT;
        }
        if (packetplayinwindowclick.e() == 0 || packetplayinwindowclick.e() == 1) {
          if (packetplayinwindowclick.d() < 0) {
            action = InventoryAction.NOTHING;
          } else {
            Slot slot = this.player.activeContainer.getSlot(packetplayinwindowclick.d());
            if (slot != null && slot.isAllowed(this.player) && slot.hasItem()) {
              action = InventoryAction.MOVE_TO_OTHER_INVENTORY;
            } else {
              action = InventoryAction.NOTHING;
            }
          }
        }
      } else if (packetplayinwindowclick.h() == 2) {
        if (packetplayinwindowclick.e() >= 0 && packetplayinwindowclick.e() < 9) {
          click = ClickType.NUMBER_KEY;
          Slot clickedSlot = this.player.activeContainer.getSlot(packetplayinwindowclick.d());
          if (clickedSlot.isAllowed(this.player)) {
            ItemStack hotbar = this.player.inventory.getItem(packetplayinwindowclick.e());
            boolean canCleanSwap = (hotbar == null || (clickedSlot.inventory == this.player.inventory && clickedSlot.isAllowed(hotbar)));
            if (clickedSlot.hasItem()) {
              if (canCleanSwap) {
                action = InventoryAction.HOTBAR_SWAP;
              } else {
                int firstEmptySlot = this.player.inventory.getFirstEmptySlotIndex();
                if (firstEmptySlot > -1) {
                  action = InventoryAction.HOTBAR_MOVE_AND_READD;
                } else {
                  action = InventoryAction.NOTHING;
                }
              }
            } else if (!clickedSlot.hasItem() && hotbar != null && clickedSlot.isAllowed(hotbar)) {
              action = InventoryAction.HOTBAR_SWAP;
            } else {
              action = InventoryAction.NOTHING;
            }
          } else {
            action = InventoryAction.NOTHING;
          }

          event = new InventoryClickEvent(inventory, type, packetplayinwindowclick.d(), click, action, packetplayinwindowclick.e());
        }
      } else if (packetplayinwindowclick.h() == 3) {
        if (packetplayinwindowclick.e() == 2) {
          click = ClickType.MIDDLE;
          if (packetplayinwindowclick.d() == -999) {
            action = InventoryAction.NOTHING;
          } else {
            Slot slot = this.player.activeContainer.getSlot(packetplayinwindowclick.d());
            if (slot != null && slot.hasItem() && this.player.abilities.canInstantlyBuild && this.player.inventory.getCarried() == null) {
              action = InventoryAction.CLONE_STACK;
            } else {
              action = InventoryAction.NOTHING;
            }
          }
        } else {
          click = ClickType.UNKNOWN;
          action = InventoryAction.UNKNOWN;
        }
      } else if (packetplayinwindowclick.h() == 4) {
        if (packetplayinwindowclick.d() >= 0) {
          if (packetplayinwindowclick.e() == 0) {
            click = ClickType.DROP;
            Slot slot = this.player.activeContainer.getSlot(packetplayinwindowclick.d());
            if (slot != null && slot.hasItem() && slot.isAllowed(this.player) && slot.getItem() != null && slot.getItem().getItem() != Item.getItemOf(Blocks.AIR)) {
              action = InventoryAction.DROP_ONE_SLOT;
            } else {
              action = InventoryAction.NOTHING;
            }
          } else if (packetplayinwindowclick.e() == 1) {
            click = ClickType.CONTROL_DROP;
            Slot slot = this.player.activeContainer.getSlot(packetplayinwindowclick.d());
            if (slot != null && slot.hasItem() && slot.isAllowed(this.player) && slot.getItem() != null && slot.getItem().getItem() != Item.getItemOf(Blocks.AIR)) {
              action = InventoryAction.DROP_ALL_SLOT;
            } else {
              action = InventoryAction.NOTHING;
            }
          }
        } else {

          click = ClickType.LEFT;
          if (packetplayinwindowclick.e() == 1) {
            click = ClickType.RIGHT;
          }
          action = InventoryAction.NOTHING;
        }
      } else if (packetplayinwindowclick.h() == 5) {
        itemstack = this.player.activeContainer.clickItem(packetplayinwindowclick.d(), packetplayinwindowclick.e(), 5, this.player);
      } else if (packetplayinwindowclick.h() == 6) {
        click = ClickType.DOUBLE_CLICK;
        action = InventoryAction.NOTHING;
        if (packetplayinwindowclick.d() >= 0 && this.player.inventory.getCarried() != null) {
          ItemStack cursor = this.player.inventory.getCarried();
          action = InventoryAction.NOTHING;

          if (inventory.getTopInventory().contains(Material.getMaterial(Item.getId(cursor.getItem()))) || inventory.getBottomInventory().contains(Material.getMaterial(Item.getId(cursor.getItem())))) {
            action = InventoryAction.COLLECT_TO_CURSOR;
          }
        }
      }


      if (packetplayinwindowclick.h() != 5) {
        CraftItemEvent craftItemEvent; if (click == ClickType.NUMBER_KEY) {
          event = new InventoryClickEvent(inventory, type, packetplayinwindowclick.d(), click, action, packetplayinwindowclick.e());
        } else {
          event = new InventoryClickEvent(inventory, type, packetplayinwindowclick.d(), click, action);
        }

        Inventory top = inventory.getTopInventory();
        if (packetplayinwindowclick.d() == 0 && top instanceof CraftingInventory) {
          Recipe recipe = ((CraftingInventory)top).getRecipe();
          if (recipe != null) {
            if (click == ClickType.NUMBER_KEY) {
              craftItemEvent = new CraftItemEvent(recipe, inventory, type, packetplayinwindowclick.d(), click, action, packetplayinwindowclick.e());
            } else {
              craftItemEvent = new CraftItemEvent(recipe, inventory, type, packetplayinwindowclick.d(), click, action);
            }
          }
        }

        this.server.getPluginManager().callEvent(craftItemEvent);

        switch (craftItemEvent.getResult()) {
          case ALLOW:
          case DEFAULT:
            itemstack = this.player.activeContainer.clickItem(packetplayinwindowclick.d(), packetplayinwindowclick.e(), packetplayinwindowclick.h(), this.player);
            break;











          case DENY:
            switch (action) {

              case ALLOW:
              case DEFAULT:
              case DENY:
              case null:
              case null:
              case null:
                this.player.updateInventory(this.player.activeContainer);
                break;

              case null:
              case null:
              case null:
              case null:
              case null:
              case null:
              case null:
                this.player.playerConnection.sendPacketProtocolHack(new PacketPlayOutSetSlot(-1, -1, this.player.inventory.getCarried()));
                this.player.playerConnection.sendPacketProtocolHack(new PacketPlayOutSetSlot(this.player.activeContainer.windowId, packetplayinwindowclick.d(), this.player.activeContainer.getSlot(packetplayinwindowclick.d()).getItem()));
                break;

              case null:
              case null:
                this.player.playerConnection.sendPacketProtocolHack(new PacketPlayOutSetSlot(this.player.activeContainer.windowId, packetplayinwindowclick.d(), this.player.activeContainer.getSlot(packetplayinwindowclick.d()).getItem()));
                break;

              case null:
              case null:
              case null:
                this.player.playerConnection.sendPacketProtocolHack(new PacketPlayOutSetSlot(-1, -1, this.player.inventory.getCarried()));
                break;
            }



            return;
        }


      }
      if (ItemStack.matches(packetplayinwindowclick.g(), itemstack)) {
        this.player.playerConnection.sendPacket(new PacketPlayOutTransaction(packetplayinwindowclick.c(), packetplayinwindowclick.f(), true));
        this.player.g = true;
        this.player.activeContainer.b();
        this.player.broadcastCarriedItem();
        this.player.g = false;
      } else {
        this.n.a(this.player.activeContainer.windowId, Short.valueOf(packetplayinwindowclick.f()));
        this.player.playerConnection.sendPacket(new PacketPlayOutTransaction(packetplayinwindowclick.c(), packetplayinwindowclick.f(), false));
        this.player.activeContainer.a(this.player, false);
        ArrayList arraylist = new ArrayList();

        for (int i = 0; i < this.player.activeContainer.c.size(); i++) {
          arraylist.add(((Slot)this.player.activeContainer.c.get(i)).getItem());
        }

        this.player.a(this.player.activeContainer, arraylist);


        if (type == InventoryType.SlotType.RESULT && itemstack != null) {
          this.player.playerConnection.sendPacketProtocolHack(new PacketPlayOutSetSlot(this.player.activeContainer.windowId, false, itemstack));
        }
      }
    }
  }


  public void a(PacketPlayInEnchantItem packetplayinenchantitem) {
    this.player.v();
    if (this.player.activeContainer.windowId == packetplayinenchantitem.c() && this.player.activeContainer.c(this.player)) {
      this.player.activeContainer.a(this.player, packetplayinenchantitem.d());
      this.player.activeContainer.b();
    }
  }

  public void a(PacketPlayInSetCreativeSlot packetplayinsetcreativeslot) {
    if (this.player.playerInteractManager.isCreative()) {
      boolean flag = (packetplayinsetcreativeslot.c() < 0);
      ItemStack itemstack = packetplayinsetcreativeslot.getItemStack();
      boolean flag1 = (packetplayinsetcreativeslot.c() >= 1 && packetplayinsetcreativeslot.c() < 36 + PlayerInventory.getHotbarSize());

      boolean flag2 = (itemstack == null || (itemstack.getItem() != null && (!invalidItems.contains(Integer.valueOf(Item.getId(itemstack.getItem()))) || !SpigotConfig.filterCreativeItems)));
      boolean flag3 = (itemstack == null || (itemstack.getData() >= 0 && itemstack.count <= 64 && itemstack.count > 0));


      if (flag || (flag1 && !ItemStack.matches(this.player.defaultContainer.getSlot(packetplayinsetcreativeslot.c()).getItem(), packetplayinsetcreativeslot.getItemStack()))) {

        CraftPlayer craftPlayer = this.player.getBukkitEntity();
        CraftInventoryView craftInventoryView = new CraftInventoryView(craftPlayer, craftPlayer.getInventory(), this.player.defaultContainer);
        ItemStack item = CraftItemStack.asBukkitCopy(packetplayinsetcreativeslot.getItemStack());

        InventoryType.SlotType type = InventoryType.SlotType.QUICKBAR;
        if (flag) {
          type = InventoryType.SlotType.OUTSIDE;
        } else if (packetplayinsetcreativeslot.c() < 36) {
          if (packetplayinsetcreativeslot.c() >= 5 && packetplayinsetcreativeslot.c() < 9) {
            type = InventoryType.SlotType.ARMOR;
          } else {
            type = InventoryType.SlotType.CONTAINER;
          }
        }
        InventoryCreativeEvent event = new InventoryCreativeEvent(craftInventoryView, type, flag ? -999 : packetplayinsetcreativeslot.c(), item);
        this.server.getPluginManager().callEvent(event);

        itemstack = CraftItemStack.asNMSCopy(event.getCursor());

        switch (event.getResult()) {

          case ALLOW:
            flag2 = flag3 = true;
            break;



          case DENY:
            if (packetplayinsetcreativeslot.c() >= 0) {
              this.player.playerConnection.sendPacketProtocolHack(new PacketPlayOutSetSlot(this.player.defaultContainer.windowId, packetplayinsetcreativeslot.c(), this.player.defaultContainer.getSlot(packetplayinsetcreativeslot.c()).getItem()));
              this.player.playerConnection.sendPacketProtocolHack(new PacketPlayOutSetSlot(-1, -1, null));
            }
            return;
        }


      }
      if (flag1 && flag2 && flag3) {
        if (itemstack == null) {
          this.player.defaultContainer.setItem(packetplayinsetcreativeslot.c(), (ItemStack)null);
        } else {
          this.player.defaultContainer.setItem(packetplayinsetcreativeslot.c(), itemstack);
        }

        this.player.defaultContainer.a(this.player, true);
      } else if (flag && flag2 && flag3 && this.x < 200) {
        this.x += 20;
        EntityItem entityitem = this.player.drop(itemstack, true);

        if (entityitem != null) {
          entityitem.e();

        }

      }
      else if (flag1) {


        this.player.playerConnection.sendPacketProtocolHack(new PacketPlayOutSetSlot(false, packetplayinsetcreativeslot

              .c(), this.player.defaultContainer
              .getSlot(packetplayinsetcreativeslot.c()).getItem()));
      }
    }
  }





  public void a(PacketPlayInTransaction packetplayintransaction) {
    if (!this.player.isAlive())
      return;  if (!this.player.activeContainer.a(this.player))
      return;  Short oshort = (Short)this.n.get(this.player.activeContainer.windowId);

    if (oshort != null && packetplayintransaction.d() == oshort.shortValue() && this.player.activeContainer.windowId == packetplayintransaction.c() && !this.player.activeContainer.c(this.player)) {
      this.player.activeContainer.a(this.player, true);
    }
  }

  public void a(PacketPlayInUpdateSign packetplayinupdatesign) {
    if (!this.player.isAlive())
      return;
    this.player.v();
    WorldServer worldserver = this.minecraftServer.getWorldServer(this.player.dimension);

    if (worldserver.isLoaded(packetplayinupdatesign.c(), packetplayinupdatesign.d(), packetplayinupdatesign.e())) {
      TileEntity tileentity = worldserver.getTileEntity(packetplayinupdatesign.c(), packetplayinupdatesign.d(), packetplayinupdatesign.e());

      if (tileentity instanceof TileEntitySign) {
        TileEntitySign tileentitysign = (TileEntitySign)tileentity;

        if (!tileentitysign.a() || tileentitysign.b() != this.player) {
          this.minecraftServer.warning("Player " + this.player.getName() + " just tried to change non-editable sign");
          sendPacket(new PacketPlayOutUpdateSign(packetplayinupdatesign.c(), packetplayinupdatesign.d(), packetplayinupdatesign.e(), tileentitysign.lines));

          return;
        }
      }

      int j;

      for (j = 0; j < 4; j++) {
        boolean flag = true;
        packetplayinupdatesign.f()[j] = packetplayinupdatesign.f()[j].replaceAll("���", "").replaceAll("���", "");

        if (packetplayinupdatesign.f()[j].length() > 15) {
          flag = false;
        } else {
          for (int i = 0; i < packetplayinupdatesign.f()[j].length(); i++) {
            if (!SharedConstants.isAllowedChatCharacter(packetplayinupdatesign.f()[j].charAt(i))) {
              flag = false;
            }
          }
        }

        if (!flag) {
          packetplayinupdatesign.f()[j] = "!?";
        }
      }

      if (tileentity instanceof TileEntitySign) {
        j = packetplayinupdatesign.c();
        int k = packetplayinupdatesign.d();

        int i = packetplayinupdatesign.e();
        TileEntitySign tileentitysign1 = (TileEntitySign)tileentity;


        Player player = this.server.getPlayer(this.player);
        SignChangeEvent event = new SignChangeEvent((CraftBlock)player.getWorld().getBlockAt(j, k, i), this.server.getPlayer(this.player), packetplayinupdatesign.f());
        this.server.getPluginManager().callEvent(event);

        if (!event.isCancelled()) {
          tileentitysign1.lines = CraftSign.sanitizeLines(event.getLines());
          tileentitysign1.isEditable = false;
        }



        tileentitysign1.update();
        worldserver.notify(j, k, i);
      }
    }
  }


  public void a(PacketPlayInKeepAlive packetplayinkeepalive) {
    this.lastPacketTypeReceived = 'k';

    boolean catchingUp = false;

    if (this.lastKeepAlivePacketReceivedTime == -1L) {
      this.lastKeepAlivePacketReceivedTime = this.networkManager.currentTime;
    } else if (this.lastKeepAlivePacketReceivedTime + 2000L < this.networkManager.currentTime) {

      catchingUp = true;
      this.lastKeepAlivePacketReceivedTime += 550L;
    } else {
      this.lastKeepAlivePacketReceivedTime = this.networkManager.currentTime;
    }


    this.packetsNotReceived--;


    if (this.player.isAlive() && !this.player.sleeping && this.lastKAPacketTick + 20L > MinecraftServer.currentTick && this.lastKAMovementPacket + 100L < MinecraftServer.currentTick &&
      this.lastNotificationTick + 20L < MinecraftServer.currentTick) {
      this.lastNotificationTick = MinecraftServer.currentTick;
    }



    this.lastKAPacketTick = MinecraftServer.currentTick;












    if (packetplayinkeepalive.c() == this.h) {
      int i = (int)(d() - this.i);

      this.player.ping = (this.player.ping * 3 + i) / 4;
    }
  }


  private long d() { return System.nanoTime() / 1000000L; }



  public void a(PacketPlayInAbilities packetplayinabilities) {
    if (this.player.abilities.canFly && this.player.abilities.isFlying != packetplayinabilities.isFlying()) {
      PlayerToggleFlightEvent event = new PlayerToggleFlightEvent(this.server.getPlayer(this.player), packetplayinabilities.isFlying());
      this.server.getPluginManager().callEvent(event);
      if (!event.isCancelled()) {
        this.player.abilities.isFlying = packetplayinabilities.isFlying();
      } else {
        this.player.updateAbilities();
      }
    }
  }



  public void a(PacketPlayInTabComplete packetplayintabcomplete) {
    if (chatSpamField.addAndGet(this, 20) > 400 && !this.minecraftServer.getPlayerList().isOp(this.player.getProfile())) {
      disconnect("disconnect.spam");

      return;
    }
    ArrayList arraylist = Lists.newArrayList();
    Iterator iterator = this.minecraftServer.a(this.player, packetplayintabcomplete.c()).iterator();

    while (iterator.hasNext()) {
      String s = (String)iterator.next();

      arraylist.add(s);
    }

    this.player.playerConnection.sendPacket(new PacketPlayOutTabComplete((String[])arraylist.toArray(new String[arraylist.size()])));
  }


  public void a(PacketPlayInSettings packetplayinsettings) { this.player.a(packetplayinsettings); }







  public void a(PacketPlayInCustomPayload packetplayincustompayload) {
    if (packetplayincustompayload.length <= 0) {
      return;
    }


    if ("MC|BEdit".equals(packetplayincustompayload.c())) {
      packetdataserializer = new PacketDataSerializer(Unpooled.wrappedBuffer(packetplayincustompayload.e()), this.networkManager.getVersion());

      try {
        ItemStack itemstack = packetdataserializer.c();
        if (itemstack != null) {
          if (!ItemBookAndQuill.a(itemstack.getTag())) {
            throw new IOException("Invalid book tag!");
          }

          ItemStack itemstack1 = this.player.inventory.getItemInHand();
          if (itemstack1 == null) {
            return;
          }

          if (itemstack.getItem() == Items.BOOK_AND_QUILL && itemstack.getItem() == itemstack1.getItem()) {
            CraftEventFactory.handleEditBookEvent(this.player, itemstack);
          }


          return;
        }
      } catch (Exception exception) {
        c.error("Couldn't handle book info", exception);
        disconnect("Invalid book data!");

        return;
      } finally {
        packetdataserializer.release();
      }
      return;
    }
    if ("MC|BSign".equals(packetplayincustompayload.c())) {
      packetdataserializer = new PacketDataSerializer(Unpooled.wrappedBuffer(packetplayincustompayload.e()), this.networkManager.getVersion());

      try {
        ItemStack itemstack = packetdataserializer.c();
        if (itemstack != null) {
          if (!ItemWrittenBook.a(itemstack.getTag())) {
            throw new IOException("Invalid book tag!");
          }

          ItemStack itemstack1 = this.player.inventory.getItemInHand();
          if (itemstack1 == null) {
            return;
          }

          if (itemstack.getItem() == Items.WRITTEN_BOOK && itemstack1.getItem() == Items.BOOK_AND_QUILL) {
            CraftEventFactory.handleEditBookEvent(this.player, itemstack);
          }


          return;
        }
      } catch (Throwable exception1) {
        c.error("Couldn't sign book", exception1);
        disconnect("Invalid book data!");

        return;
      } finally {
        packetdataserializer.release();
      }


      return;
    }


    if ("MC|TrSel".equals(packetplayincustompayload.c())) {
      try {
        DataInputStream datainputstream = new DataInputStream(new ByteArrayInputStream(packetplayincustompayload.e()));
        int i = datainputstream.readInt();
        Container container = this.player.activeContainer;

        if (container instanceof ContainerMerchant) {
          ((ContainerMerchant)container).e(i);
        }
      }
      catch (Throwable exception2) {
        c.error("Couldn't select trade", exception2);
        disconnect("Invalid trade data!");
      }

    } else if ("MC|AdvCdm".equals(packetplayincustompayload.c())) {
      if (!this.minecraftServer.getEnableCommandBlock()) {
        this.player.sendMessage(new ChatMessage("advMode.notEnabled", new Object[0]));
      } else if (this.player.a(2, "") && this.player.abilities.canInstantlyBuild) {
        packetdataserializer = new PacketDataSerializer(Unpooled.wrappedBuffer(packetplayincustompayload.e()));

        try {
          byte b0 = packetdataserializer.readByte();
          CommandBlockListenerAbstract commandblocklistenerabstract = null;

          if (b0 == 0) {
            TileEntity tileentity = this.player.world.getTileEntity(packetdataserializer.readInt(), packetdataserializer.readInt(), packetdataserializer.readInt());

            if (tileentity instanceof TileEntityCommand) {
              commandblocklistenerabstract = ((TileEntityCommand)tileentity).getCommandBlock();
            }
          } else if (b0 == 1) {
            Entity entity = this.player.world.getEntity(packetdataserializer.readInt());

            if (entity instanceof EntityMinecartCommandBlock) {
              commandblocklistenerabstract = ((EntityMinecartCommandBlock)entity).getCommandBlock();
            }
          }

          String s = packetdataserializer.c(packetdataserializer.readableBytes());

          if (commandblocklistenerabstract != null) {
            commandblocklistenerabstract.setCommand(s);
            commandblocklistenerabstract.e();
            this.player.sendMessage(new ChatMessage("advMode.setCommand.success", new Object[] { s }));
          }

        } catch (Throwable exception3) {
          c.error("Couldn't set command block", exception3);
          disconnect("Invalid CommandBlock data!");
        } finally {

          packetdataserializer.release();
        }
      } else {
        this.player.sendMessage(new ChatMessage("advMode.notAllowed", new Object[0]));
      }
    } else if ("MC|Beacon".equals(packetplayincustompayload.c())) {
      if (this.player.activeContainer instanceof ContainerBeacon) {
        try {
          DataInputStream datainputstream = new DataInputStream(new ByteArrayInputStream(packetplayincustompayload.e()));
          int i = datainputstream.readInt();
          int j = datainputstream.readInt();
          ContainerBeacon containerbeacon = (ContainerBeacon)this.player.activeContainer;
          Slot slot = containerbeacon.getSlot(0);

          if (slot.hasItem()) {
            slot.a(1);
            TileEntityBeacon tileentitybeacon = containerbeacon.e();

            tileentitybeacon.d(i);
            tileentitybeacon.e(j);
            tileentitybeacon.update();
          }

        } catch (Throwable exception4) {
          c.error("Couldn't set beacon", exception4);
          disconnect("Invalid beacon data!");
        }

      }
    } else if ("MC|ItemName".equals(packetplayincustompayload.c()) && this.player.activeContainer instanceof ContainerAnvil) {
      ContainerAnvil containeranvil = (ContainerAnvil)this.player.activeContainer;

      if (packetplayincustompayload.e() != null && packetplayincustompayload.e().length >= 1) {
        String s1 = SharedConstants.a(new String(packetplayincustompayload.e(), Charsets.UTF_8));

        if (s1.length() <= 30) {
          containeranvil.a(s1);
        }
      } else {
        containeranvil.a("");
      }

    }
    else if (packetplayincustompayload.c().equals("REGISTER")) {
      try {
        String channels = new String(packetplayincustompayload.e(), "UTF8");
        for (String channel : channels.split("\000")) {
          getPlayer().addChannel(channel);
        }
      } catch (UnsupportedEncodingException ex) {
        throw new AssertionError(ex);
      }
    } else if (packetplayincustompayload.c().equals("UNREGISTER")) {
      try {
        String channels = new String(packetplayincustompayload.e(), "UTF8");
        for (String channel : channels.split("\000")) {
          getPlayer().removeChannel(channel);
        }
      } catch (UnsupportedEncodingException ex) {
        throw new AssertionError(ex);
      }
    } else {
      this.server.getMessenger().dispatchIncomingMessage(this.player.getBukkitEntity(), packetplayincustompayload.c(), packetplayincustompayload.e());
    }
  }



  public void a(EnumProtocol enumprotocol, EnumProtocol enumprotocol1) {
    if (enumprotocol1 != EnumProtocol.PLAY) {
      throw new IllegalStateException("Unexpected change in protocol!");
    }
  }



  public boolean isDisconnected() { return (!this.player.joining && !NetworkManager.a(this.networkManager).config().isAutoRead()); }




  public void handleKeepAliveSync(PacketPlayInKeepAlive packet) {
    this.keepAlives.remove(Integer.valueOf(packet.c()));



    long latency = (1000 + this.keepAlives.size() * 1000);
    this.playerTime = this.networkManager.currentTime - latency;

    Iterator it = this.velocitySentTimes.iterator();
    int i = 0;
    while (it.hasNext()) {
      long ts = ((Long)it.next()).longValue();
      if (this.hackDebug) {
        Bukkit.getLogger().info("KA velocity - ts " + ts);
        Bukkit.getLogger().info("KA velocity - latency " + latency);
      }


      if (this.networkManager.currentTime - ts > latency) {
        it.remove();
        this.velocitiesSent.remove(i);
        continue;
      }
      i++;
    }

    if (this.newHorizontalSpeed != 0.0D &&
      this.networkManager.currentTime - this.newHorizontalSpeedTime > latency) {
      this.horizontalSpeed = this.newHorizontalSpeed;
      this.newHorizontalSpeed = 0.0D;
    }
  }





  public void updateMovementSpeed() {
    AttributeModifiable moveSpeed = (AttributeModifiable)this.player.getAttributeMap().a(GenericAttributes.d);
    double base = moveSpeed.b();
    double value = base;
    for (AttributeModifier modifier : moveSpeed.a(0)) {
      value += modifier.d();
    }
    for (AttributeModifier modifier : moveSpeed.a(1)) {
      value += modifier.d() * base;
    }
    for (AttributeModifier modifier : moveSpeed.a(2)) {
      if (modifier != EntityLiving.c) {
        value *= (1.0D + modifier.d());
      }
    }

    if (value < this.horizontalSpeed) {
      this.newHorizontalSpeed = value;
      this.newHorizontalSpeedTime = System.currentTimeMillis();
    } else {
      this.horizontalSpeed = value;
      this.newHorizontalSpeed = 0.0D;
    }
  }



  public void handleVehicleMove(PacketPlayInVehicleMove packet) {
    if (!Doubles.isFinite(packet.x) || !Doubles.isFinite(packet.y) || !Doubles.isFinite(packet.z) || !Floats.isFinite(packet.yaw) || !Floats.isFinite(packet.pitch)) {
      disconnect("Invalid move vehicle packet received");
      return;
    }
    Entity vehicle = this.player.vehicle;
    if (vehicle == null) {
      return;
    }
    double currentX = vehicle.locX;
    double currentY = vehicle.locY;
    double currentZ = vehicle.locZ;
    double dx = packet.x - currentX;
    double dy = packet.y - currentY;
    double dz = packet.z - currentZ;
    double moveSquared = dx * dx + dy * dy + dz * dz;

    if (moveSquared > SpigotConfig.movedTooQuicklyThreshold) {
      c.warn(this.player.getName() + " moves their vehicle (" + vehicle.getClass().getSimpleName() + ") too quickly! " + dx + ", " + dy + ", " + dz);
      sendPacket(new PacketPlayOutVehicleMove(vehicle));

      return;
    }
    boolean currentlyInBlock = !vehicle.world.getCubes(vehicle, vehicle.boundingBox.shrink(0.0625D, 0.0625D, 0.0625D)).isEmpty();
    boolean movedWrongly = false;

    vehicle.move(dx, dy, dz);

    if (vehicle.e(packet.x, packet.y, packet.z) > SpigotConfig.movedWronglyThreshold) {
      c.warn(this.player.getName() + " moves their vehicle (" + vehicle.getClass().getSimpleName() + ") wrongly!");
      movedWrongly = true;
    }

    vehicle.setLocation(packet.x, packet.y, packet.z, packet.yaw, packet.pitch);

    boolean destInBlock = !vehicle.world.getCubes(vehicle, vehicle.boundingBox.shrink(0.0625D, 0.0625D, 0.0625D)).isEmpty();

    if (!currentlyInBlock && (movedWrongly || destInBlock)) {
      vehicle.setLocation(currentX, currentY, currentZ, packet.yaw, packet.pitch);
      sendPacket(new PacketPlayOutVehicleMove(vehicle));

      return;
    }
    this.minecraftServer.getPlayerList().d(this.player);
  }


  public void handleUseItem(PacketPlayInUseItem packet) {
    if (packet.hand == 1) {
      if (this.player.isBlocking())
      {
        this.player.shieldBlocking = true;
      }
    } else {
      PacketPlayInBlockPlace place = new PacketPlayInBlockPlace();
      place.a = -1;
      place.b = -1;
      place.c = -1;
      place.d = 255;
      a(place);
    }
  }
}