66 lines
2.3 KiB
Java
66 lines
2.3 KiB
Java
/*
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* Copyright (c) 2018 Jitse Boonstra
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*/
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package net.jitse.npclib.listeners;
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import net.jitse.npclib.NPCManager;
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import net.jitse.npclib.api.NPC;
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import org.bukkit.Bukkit;
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import org.bukkit.Location;
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import org.bukkit.entity.Player;
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import org.bukkit.event.EventHandler;
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import org.bukkit.event.Listener;
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import org.bukkit.event.player.PlayerMoveEvent;
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import org.bukkit.event.player.PlayerTeleportEvent;
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/**
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* @author Jitse Boonstra
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*/
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public class PlayerMoveListener implements Listener {
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@EventHandler
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public void onPlayerMove(PlayerMoveEvent event) {
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Location from = event.getFrom();
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Location to = event.getTo();
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if (from.getX() == to.getX() && from.getY() == to.getY() && from.getZ() == to.getZ()) {
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return;
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}
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handleMove(event.getPlayer());
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}
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@EventHandler
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public void onPlayerTeleport(PlayerTeleportEvent event) {
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handleMove(event.getPlayer());
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}
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private void handleMove(Player player) {
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for (NPC npc : NPCManager.getAllNPCs()) {
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if (!npc.getShown().contains(player.getUniqueId())) {
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continue; // NPC was never supposed to be shown to the player.
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}
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// If Bukkit doesn't track the NPC entity anymore, bypass the hiding distance variable.
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// This will cause issues otherwise (e.g. custom skin disappearing).
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double hideDistance = npc.getAutoHideDistance();
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double distanceSquared = player.getLocation().distanceSquared(npc.getLocation());
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boolean inRange = distanceSquared <= (hideDistance * hideDistance) || distanceSquared <= (Bukkit.getViewDistance() << 4);
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if (npc.getAutoHidden().contains(player.getUniqueId())) {
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// Check if the player and NPC are within the range to sendShowPackets it again.
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if (inRange) {
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npc.show(player, true);
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npc.getAutoHidden().remove(player.getUniqueId());
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}
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} else {
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// Check if the player and NPC are out of range to sendHidePackets it.
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if (!inRange) {
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npc.hide(player, true);
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npc.getAutoHidden().add(player.getUniqueId());
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}
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}
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}
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}
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}
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