101 lines
3.5 KiB
Java
Executable File
101 lines
3.5 KiB
Java
Executable File
/*
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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.NPCLib;
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import net.jitse.npclib.internal.NPCManager;
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import net.jitse.npclib.internal.SimpleNPC;
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import org.bukkit.Bukkit;
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import org.bukkit.World;
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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.PlayerChangedWorldEvent;
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import org.bukkit.event.player.PlayerMoveEvent;
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import org.bukkit.event.player.PlayerQuitEvent;
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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 PlayerListener implements Listener {
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private final NPCLib instance;
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public PlayerListener(NPCLib instance) {
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this.instance = instance;
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}
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@EventHandler
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public void onPlayerQuit(PlayerQuitEvent event) {
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Player player = event.getPlayer();
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for (SimpleNPC npc : NPCManager.getAllNPCs()) {
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npc.getAutoHidden().remove(player.getUniqueId());
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// Don't need to use NPC#hide since the entity is not registered in the NMS server.
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npc.getShown().remove(player.getUniqueId());
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}
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}
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@EventHandler
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public void onPlayerChangedWorld(PlayerChangedWorldEvent event) {
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Player player = event.getPlayer();
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World from = event.getFrom();
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// The PlayerTeleportEvent is call, and will handle visibility in the new world.
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for (SimpleNPC npc : NPCManager.getAllNPCs()) {
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if (npc.getLocation().getWorld().equals(from)) {
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if (!npc.getAutoHidden().contains(player.getUniqueId())) {
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npc.getAutoHidden().add(player.getUniqueId());
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npc.hide(player, true, false);
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}
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}
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}
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}
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@EventHandler
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public void onPlayerMove(PlayerMoveEvent event) {
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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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World world = player.getWorld();
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for (SimpleNPC 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 (!npc.getLocation().getWorld().equals(world)) {
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continue; // NPC is not in the same world.
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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 = instance.getAutoHideDistance();
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double distanceSquared = player.getLocation().distanceSquared(npc.getLocation());
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boolean inRange = distanceSquared <= (Math.pow(hideDistance, 2))
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&& distanceSquared <= (Math.pow(Bukkit.getViewDistance() << 4, 2));
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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.getAutoHidden().remove(player.getUniqueId());
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npc.show(player, true);
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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.getAutoHidden().add(player.getUniqueId());
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npc.hide(player, true, true);
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}
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}
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}
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}
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}
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