229 lines
8.7 KiB
Java
229 lines
8.7 KiB
Java
package net.citizensnpcs.nms.v1_13_R2.util;
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import java.lang.invoke.MethodHandle;
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import java.lang.reflect.Field;
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import java.util.Map;
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import java.util.Set;
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import java.util.stream.Collectors;
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import org.bukkit.Bukkit;
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import com.google.common.collect.ForwardingMap;
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import com.google.common.collect.ForwardingSet;
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import net.citizensnpcs.api.event.NPCLinkToPlayerEvent;
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import net.citizensnpcs.api.event.NPCSeenByPlayerEvent;
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import net.citizensnpcs.api.event.NPCUnlinkFromPlayerEvent;
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import net.citizensnpcs.api.npc.NPC;
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import net.citizensnpcs.nms.v1_13_R2.entity.EntityHumanNPC;
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import net.citizensnpcs.npc.ai.NPCHolder;
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import net.citizensnpcs.util.NMS;
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import net.minecraft.server.v1_13_R2.Entity;
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import net.minecraft.server.v1_13_R2.EntityPlayer;
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import net.minecraft.server.v1_13_R2.EntityTrackerEntry;
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public class PlayerlistTrackerEntry extends EntityTrackerEntry {
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private final Entity tracker;
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private Map<EntityPlayer, Boolean> trackingMap;
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public PlayerlistTrackerEntry(Entity entity, int i, int j, int k, boolean flag) {
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super(entity, i, j, k, flag);
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tracker = getTracker(this);
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if (TRACKING_MAP_SETTER != null) {
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try {
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Map<EntityPlayer, Boolean> delegate = (Map<EntityPlayer, Boolean>) TRACKING_MAP_GETTER.invoke(this);
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trackingMap = delegate;
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TRACKING_MAP_SETTER.invoke(this, new ForwardingMap<EntityPlayer, Boolean>() {
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@Override
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protected Map<EntityPlayer, Boolean> delegate() {
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return delegate;
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}
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@Override
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public Boolean put(EntityPlayer player, Boolean value) {
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Boolean res = super.put(player, value);
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if (res == null) {
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updateLastPlayer(player);
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}
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return res;
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}
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@Override
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public Boolean remove(Object conn) {
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Boolean removed = super.remove(conn);
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if (removed == true) {
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Bukkit.getPluginManager().callEvent(new NPCUnlinkFromPlayerEvent(
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((NPCHolder) tracker).getNPC(), ((EntityPlayer) conn).getBukkitEntity()));
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}
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return removed;
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}
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});
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} catch (Throwable e) {
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e.printStackTrace();
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}
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} else {
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try {
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Set<EntityPlayer> delegate = super.trackedPlayers;
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TRACKING_SET_SETTER.invoke(this, new ForwardingSet<EntityPlayer>() {
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@Override
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public boolean add(EntityPlayer player) {
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boolean res = super.add(player);
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if (res) {
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updateLastPlayer(player);
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}
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return res;
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}
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@Override
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protected Set<EntityPlayer> delegate() {
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return delegate;
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}
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@Override
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public boolean remove(Object conn) {
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boolean removed = super.remove(conn);
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if (removed) {
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Bukkit.getPluginManager().callEvent(new NPCUnlinkFromPlayerEvent(
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((NPCHolder) tracker).getNPC(), ((EntityPlayer) conn).getBukkitEntity()));
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}
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return removed;
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}
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});
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} catch (Throwable e) {
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e.printStackTrace();
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}
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}
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}
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public PlayerlistTrackerEntry(EntityTrackerEntry entry) {
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this(getTracker(entry), getE(entry), getF(entry), getG(entry), getU(entry));
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}
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private boolean isTracked(EntityPlayer player) {
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return trackingMap != null ? trackingMap.containsKey(player) : trackedPlayers.contains(player);
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}
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public void updateLastPlayer(EntityPlayer lastUpdatedPlayer) {
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if (lastUpdatedPlayer != null) {
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Bukkit.getPluginManager().callEvent(
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new NPCLinkToPlayerEvent(((NPCHolder) tracker).getNPC(), lastUpdatedPlayer.getBukkitEntity()));
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}
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}
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@Override
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public void updatePlayer(final EntityPlayer entityplayer) {
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if (entityplayer instanceof EntityHumanNPC)
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return;
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if (!isTracked(entityplayer) && tracker instanceof NPCHolder) {
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NPC npc = ((NPCHolder) tracker).getNPC();
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NPCSeenByPlayerEvent event = new NPCSeenByPlayerEvent(npc, entityplayer.getBukkitEntity());
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Bukkit.getPluginManager().callEvent(event);
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if (event.isCancelled())
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return;
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Integer trackingRange = npc.data().<Integer> get(NPC.Metadata.TRACKING_RANGE);
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if (TRACKING_RANGE_SETTER != null && trackingRange != null
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&& npc.data().get("last-tracking-range", -1) != trackingRange.intValue()) {
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try {
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TRACKING_RANGE_SETTER.invoke(this, trackingRange);
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npc.data().set("last-tracking-range", trackingRange);
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} catch (Throwable e) {
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e.printStackTrace();
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}
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}
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}
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super.updatePlayer(entityplayer);
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}
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private static int getE(EntityTrackerEntry entry) {
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try {
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return (Integer) E.get(entry);
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} catch (IllegalArgumentException e) {
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e.printStackTrace();
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} catch (IllegalAccessException e) {
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e.printStackTrace();
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}
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return 0;
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}
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private static int getF(EntityTrackerEntry entry) {
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try {
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return (Integer) F.get(entry);
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} catch (IllegalArgumentException e) {
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e.printStackTrace();
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} catch (IllegalAccessException e) {
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e.printStackTrace();
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}
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return 0;
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}
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private static int getG(EntityTrackerEntry entry) {
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try {
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return (Integer) G.get(entry);
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} catch (IllegalArgumentException e) {
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e.printStackTrace();
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} catch (IllegalAccessException e) {
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e.printStackTrace();
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}
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return 0;
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}
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public static Set<org.bukkit.entity.Player> getSeenBy(EntityTrackerEntry tracker) {
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if (TRACKING_MAP_GETTER != null) {
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Map<EntityPlayer, Boolean> delegate;
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try {
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delegate = (Map<EntityPlayer, Boolean>) TRACKING_MAP_GETTER.invoke(tracker);
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} catch (Throwable e) {
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return null;
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}
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return delegate.keySet().stream().map(p -> p.getBukkitEntity()).collect(Collectors.toSet());
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} else {
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return tracker.trackedPlayers.stream().map(p -> p.getBukkitEntity()).collect(Collectors.toSet());
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}
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}
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private static Entity getTracker(EntityTrackerEntry entry) {
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try {
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return (Entity) TRACKER.get(entry);
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} catch (IllegalArgumentException e) {
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e.printStackTrace();
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} catch (IllegalAccessException e) {
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e.printStackTrace();
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}
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return null;
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}
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private static boolean getU(EntityTrackerEntry entry) {
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try {
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return (Boolean) U.get(entry);
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} catch (IllegalArgumentException e) {
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e.printStackTrace();
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} catch (IllegalAccessException e) {
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e.printStackTrace();
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}
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return false;
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}
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private static Field E = NMS.getField(EntityTrackerEntry.class, "e");
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private static Field F = NMS.getField(EntityTrackerEntry.class, "f");
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private static Field G = NMS.getField(EntityTrackerEntry.class, "g");
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private static Field TRACKER = NMS.getField(EntityTrackerEntry.class, "tracker");
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private static MethodHandle TRACKING_MAP_GETTER;
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private static MethodHandle TRACKING_MAP_SETTER;
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private static final MethodHandle TRACKING_RANGE_SETTER = NMS.getFirstFinalSetter(EntityTrackerEntry.class,
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int.class);
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private static final MethodHandle TRACKING_SET_SETTER = NMS.getFirstFinalSetter(EntityTrackerEntry.class,
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Set.class);
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private static Field U = NMS.getField(EntityTrackerEntry.class, "u");
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static {
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try {
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// Old paper versions override the tracked player set to be a map
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if (EntityTrackerEntry.class.getField("trackedPlayerMap") != null) {
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TRACKING_MAP_SETTER = NMS.getFirstSetter(EntityTrackerEntry.class, Map.class);
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TRACKING_MAP_GETTER = NMS.getFirstGetter(EntityTrackerEntry.class, Map.class);
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}
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} catch (Exception e) {
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}
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}
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}
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