package me.libraryaddict.disguise.utilities; import java.lang.reflect.Field; import java.lang.reflect.Method; import java.util.HashMap; import java.util.HashSet; import java.util.Iterator; import me.libraryaddict.disguise.LibsDisguises; import me.libraryaddict.disguise.disguisetypes.Disguise; import me.libraryaddict.disguise.disguisetypes.TargettedDisguise; import me.libraryaddict.disguise.disguisetypes.TargettedDisguise.TargetType; import org.bukkit.Bukkit; import org.bukkit.Location; import org.bukkit.Material; import org.bukkit.entity.Entity; import org.bukkit.entity.Player; import org.bukkit.inventory.ItemStack; import org.bukkit.potion.PotionEffect; import org.bukkit.util.Vector; import com.comphenix.protocol.Packets; import com.comphenix.protocol.ProtocolLibrary; import com.comphenix.protocol.ProtocolManager; import com.comphenix.protocol.events.PacketContainer; import com.comphenix.protocol.wrappers.WrappedDataWatcher; public class DisguiseUtilities { // Store the entity IDs instead of entitys because then I can disguise entitys even before they exist private static HashMap> targetedDisguises = new HashMap>(); private static LibsDisguises libsDisguises; // A internal storage of fake entity ID's I can use. // Realistically I could probably use a ID like "4" for everyone, seeing as no one shares the ID private static HashMap selfDisguisesIds = new HashMap(); public static HashMap> getDisguises() { return targetedDisguises; } public static HashMap getSelfDisguisesIds() { return selfDisguisesIds; } public static void init(LibsDisguises disguises) { libsDisguises = disguises; } public static boolean isDisguiseInUse(Disguise disguise) { if (getDisguises().containsKey(disguise.getEntity().getEntityId()) && getDisguises().get(disguise.getEntity().getEntityId()).contains(disguise)) { return true; } return false; } /** * @param Resends * the entity to all the watching players, which is where the magic begins */ public static void refreshTrackers(Entity entity) { try { Object world = ReflectionManager.getWorld(entity.getWorld()); Object tracker = world.getClass().getField("tracker").get(world); Object trackedEntities = tracker.getClass().getField("trackedEntities").get(tracker); Object entityTrackerEntry = trackedEntities.getClass().getMethod("get", int.class) .invoke(trackedEntities, entity.getEntityId()); if (entityTrackerEntry != null) { HashSet trackedPlayers = (HashSet) entityTrackerEntry.getClass().getField("trackedPlayers") .get(entityTrackerEntry); Method clear = entityTrackerEntry.getClass().getMethod("clear", ReflectionManager.getNmsClass("EntityPlayer")); Method updatePlayer = entityTrackerEntry.getClass().getMethod("updatePlayer", ReflectionManager.getNmsClass("EntityPlayer")); HashSet cloned = (HashSet) trackedPlayers.clone(); for (Object player : cloned) { if (entity instanceof Player && !((Player) ReflectionManager.getBukkitEntity(player)).canSee((Player) entity)) continue; clear.invoke(entityTrackerEntry, player); updatePlayer.invoke(entityTrackerEntry, player); } } } catch (Exception ex) { ex.printStackTrace(); } } public static void removeSelfDisguise(Player player) { if (selfDisguisesIds.containsKey(player.getEntityId())) { // Send a packet to destroy the fake entity PacketContainer packet = new PacketContainer(Packets.Server.DESTROY_ENTITY); packet.getModifier().write(0, new int[] { selfDisguisesIds.get(player.getEntityId()) }); try { ProtocolLibrary.getProtocolManager().sendServerPacket(player, packet); } catch (Exception ex) { ex.printStackTrace(); } // Remove the fake entity ID from the disguise bin selfDisguisesIds.remove(player.getEntityId()); // Get the entity tracker try { Object world = ReflectionManager.getWorld(player.getWorld()); Object tracker = world.getClass().getField("tracker").get(world); Object trackedEntities = tracker.getClass().getField("trackedEntities").get(tracker); Object entityTrackerEntry = trackedEntities.getClass().getMethod("get", int.class) .invoke(trackedEntities, player.getEntityId()); if (entityTrackerEntry != null) { HashSet trackedPlayers = (HashSet) entityTrackerEntry.getClass().getField("trackedPlayers") .get(entityTrackerEntry); // If the tracker exists. Remove himself from his tracker trackedPlayers.remove(ReflectionManager.getNmsEntity(player)); } } catch (Exception ex) { ex.printStackTrace(); } // Resend entity metadata else he will be invisible to himself until its resent try { ProtocolLibrary.getProtocolManager().sendServerPacket( player, ProtocolLibrary .getProtocolManager() .createPacketConstructor(Packets.Server.ENTITY_METADATA, player.getEntityId(), WrappedDataWatcher.getEntityWatcher(player), true) .createPacket(player.getEntityId(), WrappedDataWatcher.getEntityWatcher(player), true)); } catch (Exception ex) { ex.printStackTrace(); } player.updateInventory(); } } /** * Sends the self disguise to the player */ public static void sendSelfDisguise(final Player player) { try { if (!player.isValid()) { return; } Object world = ReflectionManager.getWorld(player.getWorld()); Object tracker = world.getClass().getField("tracker").get(world); Object trackedEntities = tracker.getClass().getField("trackedEntities").get(tracker); Object entityTrackerEntry = trackedEntities.getClass().getMethod("get", int.class) .invoke(trackedEntities, player.getEntityId()); if (entityTrackerEntry == null) { // A check incase the tracker is null. // If it is, then this method will be run again in one tick. Which is when it should be constructed. // Else its going to run in a infinite loop hue hue hue.. Bukkit.getScheduler().scheduleSyncDelayedTask(libsDisguises, new Runnable() { public void run() { sendSelfDisguise(player); } }); return; } // Add himself to his own entity tracker ((HashSet) entityTrackerEntry.getClass().getField("trackedPlayers").get(entityTrackerEntry)).add(ReflectionManager .getNmsEntity(player)); ProtocolManager manager = ProtocolLibrary.getProtocolManager(); // Send the player a packet with himself being spawned manager.sendServerPacket(player, manager.createPacketConstructor(Packets.Server.NAMED_ENTITY_SPAWN, player) .createPacket(player)); manager.sendServerPacket( player, manager.createPacketConstructor(Packets.Server.ENTITY_METADATA, player.getEntityId(), WrappedDataWatcher.getEntityWatcher(player), true).createPacket(player.getEntityId(), WrappedDataWatcher.getEntityWatcher(player), true)); boolean isMoving = false; try { Field field = ReflectionManager.getNmsClass("EntityTrackerEntry").getDeclaredField("isMoving"); field.setAccessible(true); isMoving = field.getBoolean(entityTrackerEntry); } catch (Exception ex) { ex.printStackTrace(); } // Send the velocity packets if (isMoving) { Vector velocity = player.getVelocity(); manager.sendServerPacket( player, manager.createPacketConstructor(Packets.Server.ENTITY_VELOCITY, player.getEntityId(), velocity.getX(), velocity.getY(), velocity.getZ()).createPacket(player.getEntityId(), velocity.getX(), velocity.getY(), velocity.getZ())); } // Why the hell would he even need this. Meh. if (player.getVehicle() != null && player.getEntityId() > player.getVehicle().getEntityId()) { manager.sendServerPacket(player, manager.createPacketConstructor(Packets.Server.ATTACH_ENTITY, 0, player, player.getVehicle()) .createPacket(0, player, player.getVehicle())); } else if (player.getPassenger() != null && player.getEntityId() > player.getPassenger().getEntityId()) { manager.sendServerPacket(player, manager.createPacketConstructor(Packets.Server.ATTACH_ENTITY, 0, player.getPassenger(), player) .createPacket(0, player.getPassenger(), player)); } // Resend the armor for (int i = 0; i < 5; i++) { ItemStack item; if (i == 0) { item = player.getItemInHand(); } else { item = player.getInventory().getArmorContents()[i - 1]; } if (item != null && item.getType() != Material.AIR) { manager.sendServerPacket(player, manager.createPacketConstructor(Packets.Server.ENTITY_EQUIPMENT, player.getEntityId(), i, item) .createPacket(player.getEntityId(), i, item)); } } Location loc = player.getLocation(); // If the disguised is sleeping for w/e reason if (player.isSleeping()) { manager.sendServerPacket( player, manager.createPacketConstructor(Packets.Server.ENTITY_LOCATION_ACTION, player, 0, loc.getBlockX(), loc.getBlockY(), loc.getBlockZ()).createPacket(player, 0, loc.getBlockX(), loc.getBlockY(), loc.getBlockZ())); } // Resend any active potion effects Iterator iterator = player.getActivePotionEffects().iterator(); while (iterator.hasNext()) { PotionEffect potionEffect = (PotionEffect) iterator.next(); manager.sendServerPacket(player, manager.createPacketConstructor(Packets.Server.MOB_EFFECT, player.getEntityId(), potionEffect) .createPacket(player.getEntityId(), potionEffect)); } } catch (Exception ex) { ex.printStackTrace(); } } public static void addDisguise(int entityId, TargettedDisguise disguise) { if (!getDisguises().containsKey(entityId)) { getDisguises().put(entityId, new HashSet()); } getDisguises().get(entityId).add(disguise); } public static boolean removeDisguise(TargettedDisguise disguise) { int entityId = disguise.getEntity().getEntityId(); if (getDisguises().containsKey(entityId) && getDisguises().get(entityId).remove(disguise)) { if (getDisguises().get(entityId).isEmpty()) { getDisguises().remove(entityId); } return true; } return false; } @Deprecated public static TargettedDisguise getDisguise(int entityId) { TargettedDisguise toReturn = null; if (getDisguises().containsKey(entityId)) { for (TargettedDisguise disguise : getDisguises().get(entityId)) { if (disguise.getTargetType() == TargetType.HIDE_FROM_THESE && disguise.getObservers().isEmpty()) { return disguise; } if (toReturn == null) { toReturn = disguise; } } } return toReturn; } public static TargettedDisguise getDisguise(Player observer, int entityId) { if (getDisguises().containsKey(entityId)) { for (TargettedDisguise disguise : getDisguises().get(entityId)) { if (disguise.canSee(observer)) { return disguise; } } } return null; } /** * Setup it so he can see himself when disguised */ public static void setupFakeDisguise(final Disguise disguise) { Entity e = disguise.getEntity(); // If the disguises entity is null, or the disguised entity isn't a player return if (e == null || !(e instanceof Player) || !getDisguises().containsKey(e.getEntityId()) || !getDisguises().get(e).contains(disguise)) return; Player player = (Player) e; // Remove the old disguise, else we have weird disguises around the place DisguiseUtilities.removeSelfDisguise(player); // If the disguised player can't see himself. Return if (!disguise.isSelfDisguiseVisible() || !PacketsManager.isViewDisguisesListenerEnabled() || player.getVehicle() != null) return; try { // Grab the entity ID the fake disguise will use Field field = ReflectionManager.getNmsClass("Entity").getDeclaredField("entityCount"); field.setAccessible(true); int id = field.getInt(null); // Set the entitycount plus one so we don't have the id being reused field.set(null, id + 1); selfDisguisesIds.put(player.getEntityId(), id); } catch (Exception ex) { ex.printStackTrace(); } sendSelfDisguise(player); if (disguise.isHidingArmorFromSelf() || disguise.isHidingHeldItemFromSelf()) { if (PacketsManager.isInventoryListenerEnabled()) { player.updateInventory(); } } } }