LibsDisguises/src/me/libraryaddict/disguise/DisguiseAPI.java

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package me.libraryaddict.disguise;
import java.lang.reflect.Field;
import java.util.Collection;
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import java.util.HashMap;
import java.util.Iterator;
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import me.libraryaddict.disguise.DisguiseTypes.Disguise;
import me.libraryaddict.disguise.Events.DisguiseEvent;
import me.libraryaddict.disguise.Events.UndisguiseEvent;
import net.minecraft.server.v1_6_R2.AttributeMapServer;
import net.minecraft.server.v1_6_R2.EntityHuman;
import net.minecraft.server.v1_6_R2.EntityInsentient;
import net.minecraft.server.v1_6_R2.EntityLiving;
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import net.minecraft.server.v1_6_R2.EntityPlayer;
import net.minecraft.server.v1_6_R2.EntityTrackerEntry;
import net.minecraft.server.v1_6_R2.ItemStack;
import net.minecraft.server.v1_6_R2.MobEffect;
import net.minecraft.server.v1_6_R2.Packet17EntityLocationAction;
import net.minecraft.server.v1_6_R2.Packet20NamedEntitySpawn;
import net.minecraft.server.v1_6_R2.Packet28EntityVelocity;
import net.minecraft.server.v1_6_R2.Packet35EntityHeadRotation;
import net.minecraft.server.v1_6_R2.Packet39AttachEntity;
import net.minecraft.server.v1_6_R2.Packet40EntityMetadata;
import net.minecraft.server.v1_6_R2.Packet41MobEffect;
import net.minecraft.server.v1_6_R2.Packet44UpdateAttributes;
import net.minecraft.server.v1_6_R2.Packet5EntityEquipment;
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import net.minecraft.server.v1_6_R2.WorldServer;
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import org.bukkit.Bukkit;
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import org.bukkit.craftbukkit.v1_6_R2.entity.CraftEntity;
import org.bukkit.craftbukkit.v1_6_R2.entity.CraftPlayer;
import org.bukkit.entity.Entity;
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import org.bukkit.entity.Player;
import com.comphenix.protocol.Packets;
import com.comphenix.protocol.ProtocolLibrary;
import com.comphenix.protocol.events.PacketContainer;
import com.comphenix.protocol.reflect.StructureModifier;
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public class DisguiseAPI {
private static HashMap<Integer, Disguise> disguises = new HashMap<Integer, Disguise>();
private static boolean hearSelfDisguise;
private static LibsDisguises libsDisguises;
private static HashMap<Integer, Integer> selfDisguisesIds = new HashMap<Integer, Integer>();
private static boolean sendVelocity;
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public static boolean canHearSelfDisguise() {
return hearSelfDisguise;
}
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public static void disguiseNextEntity(Disguise disguise) {
if (disguise == null)
return;
try {
Field field = net.minecraft.server.v1_6_R2.Entity.class.getDeclaredField("entityCount");
field.setAccessible(true);
int id = field.getInt(null);
disguises.put(id, disguise);
} catch (Exception ex) {
ex.printStackTrace();
}
}
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/**
* @param Player
* - The player to disguise
* @param Disguise
* - The disguise to wear
*/
public static void disguiseToAll(Entity entity, Disguise disguise) {
// If they are trying to disguise a null entity or use a null disguise
// Just return.
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if (entity == null || disguise == null)
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return;
// Fire a disguise event
DisguiseEvent event = new DisguiseEvent(entity, disguise);
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Bukkit.getPluginManager().callEvent(event);
// If they cancelled this disguise event. No idea why.
// Just return.
if (event.isCancelled())
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return;
// The event wasn't cancelled. Got to discard the old disguise
Disguise oldDisguise = getDisguise(entity);
// If there was a old disguise
if (oldDisguise != null) {
oldDisguise.getScheduler().cancel();
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}
// If the disguise entity isn't the same as the one we are disguising
if (disguise.getEntity() != entity) {
// If the disguise entity actually exists
if (disguise.getEntity() != null) {
// Clone the disguise
disguise = disguise.clone();
}
// Set the disguise's entity
disguise.setEntity(entity);
}
// Stick the disguise in the disguises bin
disguises.put(entity.getEntityId(), disguise);
// Resend the disguised entity's packet
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refresh(entity);
// If he is a player, then self disguise himself
setupPlayer(disguise);
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}
/**
* Get the disguise of a entity
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*/
public static Disguise getDisguise(Entity disguiser) {
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if (disguiser == null)
return null;
return disguises.get(disguiser.getEntityId());
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}
/**
* Get the ID of a fake disguise for a entityplayer
*/
public static int getFakeDisguise(int id) {
if (selfDisguisesIds.containsKey(id))
return selfDisguisesIds.get(id);
return -1;
}
protected static void init(LibsDisguises mainPlugin) {
libsDisguises = mainPlugin;
}
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/**
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* @param Disguiser
* @return boolean - If the disguiser is disguised
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*/
public static boolean isDisguised(Entity disguiser) {
return getDisguise(disguiser) != null;
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}
public static boolean isSoundEnabled() {
return PacketsManager.isHearDisguisesEnabled();
}
public static boolean isVelocitySent() {
return sendVelocity;
}
/**
* The default value if a player views his own disguise
*/
public static boolean isViewDisguises() {
return PacketsManager.isViewDisguisesListenerEnabled();
}
/**
* @param Resends
* the entity to all the watching players, which is where the magic begins
*/
private static void refresh(Entity entity) {
EntityTrackerEntry entry = (EntityTrackerEntry) ((WorldServer) ((CraftEntity) entity).getHandle().world).tracker.trackedEntities
.get(entity.getEntityId());
if (entry != null) {
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EntityPlayer[] players = (EntityPlayer[]) entry.trackedPlayers.toArray(new EntityPlayer[entry.trackedPlayers.size()]);
for (EntityPlayer player : players) {
if (entity instanceof Player && !player.getBukkitEntity().canSee((Player) entity))
continue;
entry.clear(player);
entry.updatePlayer(player);
}
}
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}
private static void removeVisibleDisguise(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
EntityPlayer entityplayer = ((CraftPlayer) player).getHandle();
EntityTrackerEntry tracker = (EntityTrackerEntry) ((WorldServer) entityplayer.world).tracker.trackedEntities
.get(player.getEntityId());
// If the tracker exists. Remove himself from his tracker
if (tracker != null) {
tracker.trackedPlayers.remove(entityplayer);
}
// Resend entity metadata else he will be invisible to himself until its resent
PacketContainer packetMetadata = new PacketContainer(Packets.Server.ENTITY_METADATA);
StructureModifier<Object> mods = packetMetadata.getModifier();
mods.write(0, player.getEntityId());
mods.write(1, entityplayer.getDataWatcher().c());
try {
ProtocolLibrary.getProtocolManager().sendServerPacket(player, packetMetadata);
} catch (Exception ex) {
ex.printStackTrace();
}
}
}
public static void setHearSelfDisguise(boolean replaceSound) {
if (hearSelfDisguise != replaceSound) {
hearSelfDisguise = replaceSound;
}
}
public static void setSoundsEnabled(boolean isSoundsEnabled) {
PacketsManager.setHearDisguisesListener(isSoundsEnabled);
}
/**
* Setup it so he can see himself when disguised
*/
private static void setupPlayer(final Disguise disguise) {
// If the disguises entity is null, or the disguised entity isn't a player return
if (disguise.getEntity() == null || !(disguise.getEntity() instanceof Player))
return;
Player player = (Player) disguise.getEntity();
// Remove the old disguise, else we have weird disguises around the place
removeVisibleDisguise(player);
// If the disguised player can't see himself. Return
if (!disguise.viewSelfDisguise())
return;
// Grab the entity player
EntityPlayer entityplayer = ((CraftPlayer) player).getHandle();
EntityTrackerEntry tracker = (EntityTrackerEntry) ((WorldServer) entityplayer.world).tracker.trackedEntities.get(player
.getEntityId());
if (tracker == 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.
Bukkit.getScheduler().scheduleSyncDelayedTask(libsDisguises, new Runnable() {
public void run() {
setupPlayer(disguise);
}
});
return;
}
// Add himself to his own entity tracker
tracker.trackedPlayers.add(entityplayer);
try {
// Grab the entity ID the fake disguise will use
Field field = net.minecraft.server.v1_6_R2.Entity.class.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();
}
// Send the player a packet with himself being spawned
Packet20NamedEntitySpawn packet = new Packet20NamedEntitySpawn((EntityHuman) entityplayer);
entityplayer.playerConnection.sendPacket(packet);
if (!tracker.tracker.getDataWatcher().d()) {
entityplayer.playerConnection.sendPacket(new Packet40EntityMetadata(player.getEntityId(), tracker.tracker
.getDataWatcher(), true));
}
// Send himself some entity attributes
if (tracker.tracker instanceof EntityLiving) {
AttributeMapServer attributemapserver = (AttributeMapServer) ((EntityLiving) tracker.tracker).aW();
Collection collection = attributemapserver.c();
if (!collection.isEmpty()) {
entityplayer.playerConnection.sendPacket(new Packet44UpdateAttributes(player.getEntityId(), collection));
}
}
// Why do we even have this?
tracker.j = tracker.tracker.motX;
tracker.k = tracker.tracker.motY;
tracker.l = tracker.tracker.motZ;
boolean isMoving = false;
try {
Field field = EntityTrackerEntry.class.getDeclaredField("isMoving");
field.setAccessible(true);
isMoving = field.getBoolean(tracker);
} catch (Exception ex) {
ex.printStackTrace();
}
// Send the velocity packets
if (isMoving) {
entityplayer.playerConnection.sendPacket(new Packet28EntityVelocity(player.getEntityId(), tracker.tracker.motX,
tracker.tracker.motY, tracker.tracker.motZ));
}
// Why the hell would he even need this. Meh.
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if (tracker.tracker.vehicle != null && player.getEntityId() > tracker.tracker.vehicle.id) {
entityplayer.playerConnection.sendPacket(new Packet39AttachEntity(0, tracker.tracker, tracker.tracker.vehicle));
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} else if (tracker.tracker.passenger != null && player.getEntityId() > tracker.tracker.passenger.id) {
entityplayer.playerConnection.sendPacket(new Packet39AttachEntity(0, tracker.tracker.passenger, tracker.tracker));
}
if (tracker.tracker instanceof EntityInsentient && ((EntityInsentient) tracker.tracker).bI() != null) {
entityplayer.playerConnection.sendPacket(new Packet39AttachEntity(1, tracker.tracker,
((EntityInsentient) tracker.tracker).bI()));
}
// Resend the armor
for (int i = 0; i < 5; ++i) {
ItemStack itemstack = ((EntityLiving) tracker.tracker).getEquipment(i);
if (itemstack != null) {
entityplayer.playerConnection.sendPacket(new Packet5EntityEquipment(player.getEntityId(), i, itemstack));
}
}
// If the disguised is sleeping for w/e reason
if (entityplayer.isSleeping()) {
entityplayer.playerConnection
.sendPacket(new Packet17EntityLocationAction(entityplayer, 0, (int) Math.floor(tracker.tracker.locX),
(int) Math.floor(tracker.tracker.locY), (int) Math.floor(tracker.tracker.locZ)));
}
// CraftBukkit start - Fix for nonsensical head yaw
tracker.i = (int) Math.floor(tracker.tracker.getHeadRotation() * 256.0F / 360.0F); // tracker.ao() should be
// getHeadRotation
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tracker.broadcast(new Packet35EntityHeadRotation(player.getEntityId(), (byte) tracker.i));
// CraftBukkit end
// Resend any active potion effects
Iterator iterator = entityplayer.getEffects().iterator();
while (iterator.hasNext()) {
MobEffect mobeffect = (MobEffect) iterator.next();
entityplayer.playerConnection.sendPacket(new Packet41MobEffect(player.getEntityId(), mobeffect));
}
}
/**
* Disable velocity packets being sent for w/e reason. Maybe you want every ounce of performance you can get?
*/
public static void setVelocitySent(boolean sendVelocityPackets) {
sendVelocity = sendVelocityPackets;
}
public static void setViewDisguises(boolean seeOwnDisguise) {
PacketsManager.setViewDisguisesListener(seeOwnDisguise);
}
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/**
* Undisguise the entity
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*/
public static void undisguiseToAll(Entity entity) {
Disguise disguise = getDisguise(entity);
if (disguise == null)
return;
UndisguiseEvent event = new UndisguiseEvent(entity, disguise);
Bukkit.getPluginManager().callEvent(event);
if (event.isCancelled() && ((CraftEntity) entity).getHandle().valid)
return;
disguise.getScheduler().cancel();
disguises.remove(entity.getEntityId());
if (((CraftEntity) entity).getHandle().valid) {
if (entity instanceof Player)
removeVisibleDisguise((Player) entity);
refresh(entity);
}
}
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}