126 lines
4.6 KiB
Java
126 lines
4.6 KiB
Java
package net.citizensnpcs.nms.v1_17_R1.util;
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import java.lang.invoke.MethodHandle;
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import org.bukkit.Bukkit;
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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.npc.NPC;
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import net.citizensnpcs.nms.v1_17_R1.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.citizensnpcs.util.Util;
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import net.minecraft.server.level.ChunkMap;
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import net.minecraft.server.level.ChunkMap.TrackedEntity;
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import net.minecraft.server.level.ServerEntity;
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import net.minecraft.server.level.ServerPlayer;
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import net.minecraft.world.entity.Entity;
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public class PlayerlistTracker extends ChunkMap.TrackedEntity {
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private ServerPlayer lastUpdatedPlayer;
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private final Entity tracker;
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public PlayerlistTracker(ChunkMap map, Entity entity, int i, int j, boolean flag) {
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map.super(entity, i, j, flag);
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this.tracker = entity;
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}
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public PlayerlistTracker(ChunkMap map, TrackedEntity entry) {
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this(map, getTracker(entry), getTrackingDistance(entry), getE(entry), getF(entry));
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}
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public void updateLastPlayer() {
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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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lastUpdatedPlayer = null;
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}
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}
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@Override
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public void updatePlayer(final ServerPlayer entityplayer) {
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if (entityplayer instanceof EntityHumanNPC)
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return;
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if (!seenBy.contains(entityplayer.connection) && tracker instanceof NPCHolder) {
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NPC npc = ((NPCHolder) tracker).getNPC();
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if (REQUIRES_SYNC == null) {
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REQUIRES_SYNC = !Bukkit.isPrimaryThread();
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}
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boolean cancelled = Util.callPossiblySync(() -> {
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NPCSeenByPlayerEvent event = new NPCSeenByPlayerEvent(npc, entityplayer.getBukkitEntity());
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try {
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Bukkit.getPluginManager().callEvent(event);
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} catch (IllegalStateException e) {
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REQUIRES_SYNC = true;
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throw e;
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}
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if (event.isCancelled())
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return true;
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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(PlayerlistTracker.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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return false;
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}, REQUIRES_SYNC);
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if (cancelled)
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return;
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}
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this.lastUpdatedPlayer = entityplayer;
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super.updatePlayer(entityplayer);
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}
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private static int getE(TrackedEntity entry) {
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try {
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return (int) E.invoke(TRACKER_ENTRY.invoke(entry));
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} catch (Throwable 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 boolean getF(TrackedEntity entry) {
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try {
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return (boolean) F.invoke(TRACKER_ENTRY.invoke(entry));
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} catch (Throwable 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 Entity getTracker(TrackedEntity entry) {
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try {
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return (Entity) TRACKER.invoke(entry);
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} catch (Throwable 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 int getTrackingDistance(TrackedEntity entry) {
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try {
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return (Integer) TRACKING_RANGE.invoke(entry);
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} catch (Throwable 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 final MethodHandle E = NMS.getGetter(ServerEntity.class, "e");
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private static final MethodHandle F = NMS.getGetter(ServerEntity.class, "f");
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private static volatile Boolean REQUIRES_SYNC;
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private static final MethodHandle TRACKER = NMS.getFirstGetter(TrackedEntity.class, Entity.class);
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private static final MethodHandle TRACKER_ENTRY = NMS.getFirstGetter(TrackedEntity.class, ServerEntity.class);
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private static final MethodHandle TRACKING_RANGE = NMS.getFirstGetter(TrackedEntity.class, int.class);
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private static final MethodHandle TRACKING_RANGE_SETTER = NMS.getFirstFinalSetter(TrackedEntity.class, int.class);
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}
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