Snippets
Created by
Summerfeeling
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import com.google.gson.*;
import com.mojang.authlib.GameProfile;
import com.mojang.authlib.properties.Property;
import com.mojang.authlib.properties.PropertyMap;
import com.mojang.util.UUIDTypeAdapter;
import net.md_5.bungee.api.ChatColor;
import net.minecraft.server.v1_8_R2.*;
import org.bukkit.Bukkit;
import org.bukkit.Location;
import org.bukkit.Material;
import org.bukkit.craftbukkit.v1_8_R2.entity.CraftPlayer;
import org.bukkit.craftbukkit.v1_8_R2.inventory.CraftItemStack;
import org.bukkit.craftbukkit.v1_8_R2.util.CraftChatMessage;
import org.bukkit.entity.Player;
import org.bukkit.inventory.ItemStack;
import org.yaml.snakeyaml.external.biz.base64Coder.Base64Coder;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.lang.reflect.Field;
import java.lang.reflect.Type;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.*;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
public class NPC {
private DataWatcher watcher;
private GameProfile profile;
private Material chestplate;
private Material leggings;
private Location location;
private Material inHand;
private Material helmet;
private Material boots;
private String tablist;
private int entityID;
private String name;
/*
* NPC, a class for spawning fake players in the 1.8
Copyright (C) [Summerfeeling]
Dieses Programm ist freie Software. Sie können es unter den Bedingungen der GNU General Public License, wie von der Free Software Foundation veröffentlicht, weitergeben und/oder modifizieren, entweder gemäß Version 3 der Lizenz oder (nach Ihrer Option) jeder späteren Version.
Die Veröffentlichung dieses Programms erfolgt in der Hoffnung, daß es Ihnen von Nutzen sein wird, aber OHNE IRGENDEINE GARANTIE, sogar ohne die implizite Garantie der MARKTREIFE oder der VERWENDBARKEIT FÜR EINEN BESTIMMTEN ZWECK. Details finden Sie in der GNU General Public License.
Sie sollten ein Exemplar der GNU General Public License zusammen mit diesem Programm erhalten haben. Falls nicht, siehe <http://www.gnu.org/licenses/>.
*/
public NPC(String name, String tablist, int entityID, Location location, Material inHand) {
this.location = location;
this.tablist = ChatColor.translateAlternateColorCodes('&', tablist);
this.name = ChatColor.translateAlternateColorCodes('&', name);
this.entityID = entityID;
this.inHand = inHand;
this.watcher = new DataWatcher(null);
watcher.a(6, (float) 20);
}
public NPC(String name, Location location) {
this(name, name, new Random().nextInt(10000), location, Material.AIR);
}
public NPC(String name, Location location, Material inHand) {
this(name, name, new Random().nextInt(10000), location, inHand);
}
public NPC(String name, String tablist, Location location) {
this(name, tablist, new Random().nextInt(10000), location, Material.AIR);
}
public NPC(String name, String tablist, Location location, Material inHand) {
this(name, tablist, new Random().nextInt(10000), location, inHand);
}
@SuppressWarnings("deprecation")
public void spawn() {
try{
PacketPlayOutNamedEntitySpawn packet = new PacketPlayOutNamedEntitySpawn();
addToTablist();
setValue(packet, "a", entityID);
setValue(packet, "b", this.profile.getId());
setValue(packet, "c", toFixedPoint(location.getX()));
setValue(packet, "d", toFixedPoint(location.getY()));
setValue(packet, "e", toFixedPoint(location.getZ()));
setValue(packet, "f", toPackedByte(location.getYaw()));
setValue(packet, "g", toPackedByte(location.getPitch()));
setValue(packet, "h", inHand == null ? 0 : inHand.getId());
setValue(packet, "i", watcher);
for(Player online : Bukkit.getOnlinePlayers()) {
((CraftPlayer) online).getHandle().playerConnection.sendPacket(packet);
}
}catch(Exception e) {
e.printStackTrace();
}
}
@SuppressWarnings("deprecation")
public void despawn() {
PacketPlayOutEntityDestroy packet = new PacketPlayOutEntityDestroy(new int[]{this.entityID});
this.removeFromTablist();
for(Player online : Bukkit.getOnlinePlayers()) {
((CraftPlayer) online).getHandle().playerConnection.sendPacket(packet);
}
}
@SuppressWarnings("deprecation")
public void changePlayerlistName(String name) {
try{
PacketPlayOutPlayerInfo packet = new PacketPlayOutPlayerInfo(PacketPlayOutPlayerInfo.EnumPlayerInfoAction.UPDATE_DISPLAY_NAME);
PacketPlayOutPlayerInfo.PlayerInfoData data = packet.new PlayerInfoData(this.profile, 0, WorldSettings.EnumGamemode.NOT_SET, CraftChatMessage.fromString(name)[0]);
@SuppressWarnings("unchecked") List<PacketPlayOutPlayerInfo.PlayerInfoData> players = (List<PacketPlayOutPlayerInfo.PlayerInfoData>) this.getValue(packet, "b");
players.add(data);
this.setValue(packet, "b", players);
this.tablist = name;
for(Player online : Bukkit.getOnlinePlayers()) {
((CraftPlayer) online).getHandle().playerConnection.sendPacket(packet);
}
}catch(Exception e) {
e.printStackTrace();
}
}
@SuppressWarnings("deprecation")
private void addToTablist() {
try {
PacketPlayOutPlayerInfo packet = new PacketPlayOutPlayerInfo();
GameProfile profile = this.profile = this.getProfile();
PacketPlayOutPlayerInfo.PlayerInfoData data = packet.new PlayerInfoData(profile, 1, WorldSettings.EnumGamemode.NOT_SET, CraftChatMessage.fromString(tablist)[0]);
@SuppressWarnings("unchecked") List<PacketPlayOutPlayerInfo.PlayerInfoData> players = (List<PacketPlayOutPlayerInfo.PlayerInfoData>) getValue(packet, "b");
players.add(data);
setValue(packet, "a", PacketPlayOutPlayerInfo.EnumPlayerInfoAction.ADD_PLAYER);
setValue(packet, "b", players);
for(Player online : Bukkit.getOnlinePlayers()) {
((CraftPlayer) online).getHandle().playerConnection.sendPacket(packet);
}
} catch (Exception e) {
e.printStackTrace();
}
}
@SuppressWarnings("deprecation")
private void removeFromTablist() {
try{
PacketPlayOutPlayerInfo packet = new PacketPlayOutPlayerInfo(PacketPlayOutPlayerInfo.EnumPlayerInfoAction.REMOVE_PLAYER);
PacketPlayOutPlayerInfo.PlayerInfoData data = packet.new PlayerInfoData(this.profile, -1, null, null);
@SuppressWarnings("unchecked") List<PacketPlayOutPlayerInfo.PlayerInfoData> players = (List<PacketPlayOutPlayerInfo.PlayerInfoData>) this.getValue(packet, "b");
players.add(data);
this.setValue(packet, "b", players);
for(Player online : Bukkit.getOnlinePlayers()) {
((CraftPlayer) online).getHandle().playerConnection.sendPacket(packet);
}
}catch(Exception e) {
e.printStackTrace();
}
}
@SuppressWarnings("deprecation")
public void teleport(Location location) {
try{
PacketPlayOutEntityTeleport packet = new PacketPlayOutEntityTeleport();
this.setValue(packet, "a", this.entityID);
this.setValue(packet, "b", this.toFixedPoint(location.getX()));
this.setValue(packet, "c", this.toFixedPoint(location.getY()));
this.setValue(packet, "d", this.toFixedPoint(location.getZ()));
this.setValue(packet, "e", this.toPackedByte(location.getYaw()));
this.setValue(packet, "f", this.toPackedByte(location.getPitch()));
this.setValue(packet, "g", this.location.getBlock().getType() != Material.AIR);
this.location = location;
for(Player online : Bukkit.getOnlinePlayers()) {
((CraftPlayer) online).getHandle().playerConnection.sendPacket(packet);
}
}catch(Exception e) {
e.printStackTrace();
}
}
@SuppressWarnings("deprecation")
public void setItemInHand(Material material) {
try{
PacketPlayOutEntityEquipment packet = new PacketPlayOutEntityEquipment();
this.setValue(packet, "a", this.entityID);
this.setValue(packet, "b", 0);
this.setValue(packet, "c", material == Material.AIR || material == null ? CraftItemStack.asNMSCopy(new ItemStack(Material.AIR)) : CraftItemStack.asNMSCopy(new ItemStack(material)));
this.inHand = material;
for(Player online : Bukkit.getOnlinePlayers()) {
((CraftPlayer) online).getHandle().playerConnection.sendPacket(packet);
}
}catch(Exception e) {
e.printStackTrace();
}
}
public Material getItemInHand() {
return this.inHand;
}
@SuppressWarnings("deprecation")
public void setHelmet(Material material) {
try{
PacketPlayOutEntityEquipment packet = new PacketPlayOutEntityEquipment();
this.setValue(packet, "a", this.entityID);
this.setValue(packet, "b", 4);
this.setValue(packet, "c", material == Material.AIR || material == null ? CraftItemStack.asNMSCopy(new ItemStack(Material.AIR)) : CraftItemStack.asNMSCopy(new ItemStack(material)));
this.helmet = material;
for(Player online : Bukkit.getOnlinePlayers()) {
((CraftPlayer) online).getHandle().playerConnection.sendPacket(packet);
}
}catch(Exception e) {
e.printStackTrace();
}
}
public Material getHelmet() {
return this.helmet;
}
@SuppressWarnings("deprecation")
public void setChestplate(Material material) {
try{
PacketPlayOutEntityEquipment packet = new PacketPlayOutEntityEquipment();
this.setValue(packet, "a", this.entityID);
this.setValue(packet, "b", 3);
this.setValue(packet, "c", material == Material.AIR || material == null ? CraftItemStack.asNMSCopy(new ItemStack(Material.AIR)) : CraftItemStack.asNMSCopy(new ItemStack(material)));
this.chestplate = material;
for(Player online : Bukkit.getOnlinePlayers()) {
((CraftPlayer) online).getHandle().playerConnection.sendPacket(packet);
}
}catch(Exception e) {
e.printStackTrace();
}
}
public Material getChestplate() {
return this.chestplate;
}
@SuppressWarnings("deprecation")
public void setLeggings(Material material) {
try{
PacketPlayOutEntityEquipment packet = new PacketPlayOutEntityEquipment();
this.setValue(packet, "a", this.entityID);
this.setValue(packet, "b", 2);
this.setValue(packet, "c", material == Material.AIR || material == null ? CraftItemStack.asNMSCopy(new ItemStack(Material.AIR)) : CraftItemStack.asNMSCopy(new ItemStack(material)));
this.leggings = material;
for(Player online : Bukkit.getOnlinePlayers()) {
((CraftPlayer) online).getHandle().playerConnection.sendPacket(packet);
}
}catch(Exception e) {
e.printStackTrace();
}
}
public Material getLeggings() {
return this.leggings;
}
@SuppressWarnings("deprecation")
public void setBoots(Material material) {
try{
PacketPlayOutEntityEquipment packet = new PacketPlayOutEntityEquipment();
this.setValue(packet, "a", this.entityID);
this.setValue(packet, "b", 1);
this.setValue(packet, "c", material == Material.AIR || material == null ? CraftItemStack.asNMSCopy(new ItemStack(Material.AIR)) : CraftItemStack.asNMSCopy(new ItemStack(material)));
this.boots = material;
for(Player online : Bukkit.getOnlinePlayers()) {
((CraftPlayer) online).getHandle().playerConnection.sendPacket(packet);
}
}catch(Exception e) {
e.printStackTrace();
}
}
public Material getBoots() {
return this.boots;
}
public int getEntityID() {
return this.entityID;
}
public UUID getUUID() {
return this.profile.getId();
}
public Location getLocation() {
return this.location;
}
public String getName() {
return this.name;
}
public String getPlayerlistName() {
return this.tablist;
}
private void setValue(Object instance, String field, Object value) throws Exception {
Field f = instance.getClass().getDeclaredField(field);
f.setAccessible(true);
f.set(instance, value);
}
private Object getValue(Object instance, String field) throws Exception {
Field f = instance.getClass().getDeclaredField(field);
f.setAccessible(true);
return f.get(instance);
}
private int toFixedPoint(double d) {
return (int) (d * 32.0);
}
private byte toPackedByte(float f) {
return (byte) ((int) (f * 256.0F / 360.0F));
}
private GameProfile getProfile() {
try {
GameProfile profile = GameProfileBuilder.fetch(UUIDFetcher.getUUID(ChatColor.stripColor(this.name)));
Field name = profile.getClass().getDeclaredField("name");
name.setAccessible(true);
name.set(profile, this.name);
return profile;
} catch (Exception e) {
return new GameProfile(UUID.randomUUID(), this.name);
}
}
public static class GameProfileBuilder {
private static final String SERVICE_URL = "https://sessionserver.mojang.com/session/minecraft/profile/%s?unsigned=false";
private static final String JSON_SKIN = "{\"timestamp\":%d,\"profileId\":\"%s\",\"profileName\":\"%s\",\"isPublic\":true,\"textures\":{\"SKIN\":{\"url\":\"%s\"}}}";
private static final String JSON_CAPE = "{\"timestamp\":%d,\"profileId\":\"%s\",\"profileName\":\"%s\",\"isPublic\":true,\"textures\":{\"SKIN\":{\"url\":\"%s\"},\"CAPE\":{\"url\":\"%s\"}}}";
private static Gson gson = new GsonBuilder().disableHtmlEscaping().registerTypeAdapter(UUID.class, new UUIDTypeAdapter()).registerTypeAdapter(GameProfile.class, new GameProfileSerializer()).registerTypeAdapter(PropertyMap.class, new PropertyMap.Serializer()).create();
private static HashMap<UUID, CachedProfile> cache = new HashMap<UUID, CachedProfile>();
private static long cacheTime = -1;
/**
* Don't run in main thread!
*
* Fetches the GameProfile from the Mojang servers
*
* @param uuid The player uuid
* @return The GameProfile
* @throws IOException If something wents wrong while fetching
* @see GameProfile
*/
public static GameProfile fetch(UUID uuid) throws IOException {
return fetch(uuid, false);
}
/**
* Don't run in main thread!
*
* Fetches the GameProfile from the Mojang servers
* @param uuid The player uuid
* @param forceNew If true the cache is ignored
* @return The GameProfile
* @throws IOException If something wents wrong while fetching
* @see GameProfile
*/
public static GameProfile fetch(UUID uuid, boolean forceNew) throws IOException {
if (!forceNew && cache.containsKey(uuid) && cache.get(uuid).isValid()) {
return cache.get(uuid).profile;
} else {
HttpURLConnection connection = (HttpURLConnection) new URL(String.format(SERVICE_URL, UUIDTypeAdapter.fromUUID(uuid))).openConnection();
connection.setReadTimeout(5000);
if (connection.getResponseCode() == HttpURLConnection.HTTP_OK) {
String json = new BufferedReader(new InputStreamReader(connection.getInputStream())).readLine();
GameProfile result = gson.fromJson(json, GameProfile.class);
cache.put(uuid, new CachedProfile(result));
return result;
} else {
if (!forceNew && cache.containsKey(uuid)) {
return cache.get(uuid).profile;
}
JsonObject error = (JsonObject) new JsonParser().parse(new BufferedReader(new InputStreamReader(connection.getErrorStream())).readLine());
throw new IOException(error.get("error").getAsString() + ": " + error.get("errorMessage").getAsString());
}
}
}
/**
* Builds a GameProfile for the specified args
*
* @param uuid The uuid
* @param name The name
* @param skin The url from the skin image
* @return A GameProfile built from the arguments
* @see GameProfile
*/
public static GameProfile getProfile(UUID uuid, String name, String skin) {
return getProfile(uuid, name, skin, null);
}
/**
* Builds a GameProfile for the specified args
*
* @param uuid The uuid
* @param name The name
* @param skinUrl Url from the skin image
* @param capeUrl Url from the cape image
* @return A GameProfile built from the arguments
* @see GameProfile
*/
public static GameProfile getProfile(UUID uuid, String name, String skinUrl, String capeUrl) {
GameProfile profile = new GameProfile(uuid, name);
boolean cape = capeUrl != null && !capeUrl.isEmpty();
List<Object> args = new ArrayList<Object>();
args.add(System.currentTimeMillis());
args.add(UUIDTypeAdapter.fromUUID(uuid));
args.add(name);
args.add(skinUrl);
if (cape) args.add(capeUrl);
profile.getProperties().put("textures", new Property("textures", Base64Coder.encodeString(String.format(cape ? JSON_CAPE : JSON_SKIN, args.toArray(new Object[args.size()])))));
return profile;
}
/**
* Sets the time as long as you want to keep the gameprofiles in cache (-1 = never remove it)
* @param time cache time (default = -1)
*/
public static void setCacheTime(long time) {
cacheTime = time;
}
private static class GameProfileSerializer implements JsonSerializer<GameProfile>, JsonDeserializer<GameProfile> {
public GameProfile deserialize(JsonElement json, Type type, JsonDeserializationContext context) throws JsonParseException {
JsonObject object = (JsonObject) json;
UUID id = object.has("id") ? (UUID) context.deserialize(object.get("id"), UUID.class) : null;
String name = object.has("name") ? object.getAsJsonPrimitive("name").getAsString() : null;
GameProfile profile = new GameProfile(id, name);
if (object.has("properties")) {
for (Map.Entry<String, Property> prop : ((PropertyMap) context.deserialize(object.get("properties"), PropertyMap.class)).entries()) {
profile.getProperties().put(prop.getKey(), prop.getValue());
}
}
return profile;
}
public JsonElement serialize(GameProfile profile, Type type, JsonSerializationContext context) {
JsonObject result = new JsonObject();
if (profile.getId() != null)
result.add("id", context.serialize(profile.getId()));
if (profile.getName() != null)
result.addProperty("name", profile.getName());
if (!profile.getProperties().isEmpty())
result.add("properties", context.serialize(profile.getProperties()));
return result;
}
}
private static class CachedProfile {
private long timestamp = System.currentTimeMillis();
private GameProfile profile;
public CachedProfile(GameProfile profile) {
this.profile = profile;
}
public boolean isValid() {
return cacheTime < 0 || (System.currentTimeMillis() - timestamp) < cacheTime;
}
}
}
public static class UUIDFetcher {
/**
* Date when name changes were introduced
* @see UUIDFetcher#getUUIDAt(String, long)
*/
public static final long FEBRUARY_2015 = 1422748800000L;
private static Gson gson = new GsonBuilder().registerTypeAdapter(UUID.class, new UUIDTypeAdapter()).create();
private static final String UUID_URL = "https://api.mojang.com/users/profiles/minecraft/%s?at=%d";
private static final String NAME_URL = "https://api.mojang.com/user/profiles/%s/names";
private static Map<String, UUID> uuidCache = new HashMap<String, UUID>();
private static Map<UUID, String> nameCache = new HashMap<UUID, String>();
private static ExecutorService pool = Executors.newCachedThreadPool();
private String name;
private UUID id;
/**
* Fetches the uuid asynchronously and passes it to the consumer
*
* @param name The name
* @param action Do what you want to do with the uuid her
*/
public static void getUUID(final String name, Consumer<UUID> action) {
pool.execute(new Acceptor<UUID>(action) {
@Override
public UUID getValue() {
return getUUID(name);
}
});
}
/**
* Fetches the uuid synchronously and returns it
*
* @param name The name
* @return The uuid
*/
public static UUID getUUID(String name) {
return getUUIDAt(name, System.currentTimeMillis());
}
/**
* Fetches the uuid synchronously for a specified name and time and passes the result to the consumer
*
* @param name The name
* @param timestamp Time when the player had this name in milliseconds
* @param action Do what you want to do with the uuid her
*/
public static void getUUIDAt(final String name, final long timestamp, Consumer<UUID> action) {
pool.execute(new Acceptor<UUID>(action) {
@Override
public UUID getValue() {
return getUUIDAt(name, timestamp);
}
});
}
/**
* Fetches the uuid synchronously for a specified name and time
*
* @param name The name
* @param timestamp Time when the player had this name in milliseconds
* @see UUIDFetcher#FEBRUARY_2015
*/
public static UUID getUUIDAt(String name, long timestamp) {
name = name.toLowerCase();
if (uuidCache.containsKey(name)) {
return uuidCache.get(name);
}
try {
HttpURLConnection connection = (HttpURLConnection) new URL(String.format(UUID_URL, name, timestamp/1000)).openConnection();
connection.setReadTimeout(5000);
UUIDFetcher data = gson.fromJson(new BufferedReader(new InputStreamReader(connection.getInputStream())), UUIDFetcher.class);
uuidCache.put(name, data.id);
nameCache.put(data.id, data.name);
return data.id;
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
/**
* Fetches the name asynchronously and passes it to the consumer
*
* @param uuid The uuid
* @param action Do what you want to do with the name her
*/
public static void getName(final UUID uuid, Consumer<String> action) {
pool.execute(new Acceptor<String>(action) {
@Override
public String getValue() {
return getName(uuid);
}
});
}
/**
* Fetches the name synchronously and returns it
*
* @param uuid The uuid
* @return The name
*/
public static String getName(UUID uuid) {
if (nameCache.containsKey(uuid)) {
return nameCache.get(uuid);
}
try {
HttpURLConnection connection = (HttpURLConnection) new URL(String.format(NAME_URL, UUIDTypeAdapter.fromUUID(uuid))).openConnection();
connection.setReadTimeout(5000);
UUIDFetcher[] nameHistory = gson.fromJson(new BufferedReader(new InputStreamReader(connection.getInputStream())), UUIDFetcher[].class);
UUIDFetcher currentNameData = nameHistory[nameHistory.length - 1];
uuidCache.put(currentNameData.name.toLowerCase(), uuid);
nameCache.put(uuid, currentNameData.name);
return currentNameData.name;
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
public static interface Consumer<T> {
void accept(T t);
}
public static abstract class Acceptor<T> implements Runnable {
private Consumer<T> consumer;
public Acceptor(Consumer<T> consumer) {
this.consumer = consumer;
}
public abstract T getValue();
@Override
public void run() {
consumer.accept(getValue());
}
}
}
}
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