mirror of
https://github.com/IntellectualSites/PlotSquared.git
synced 2025-04-04 02:26:23 +02:00
444 lines
13 KiB
Java
444 lines
13 KiB
Java
package com.plotsquared.bukkit.titles;
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import org.bukkit.Bukkit;
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import org.bukkit.ChatColor;
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import org.bukkit.entity.Player;
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import java.lang.reflect.Field;
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import java.lang.reflect.InvocationTargetException;
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import java.lang.reflect.Method;
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import java.util.HashMap;
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import java.util.Map;
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/**
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* Minecraft 1.8 Title
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*
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* @version 1.0.4
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* @author Maxim Van de Wynckel
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*/
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public class HackTitleManager {
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/* Title packet */
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private Class<?> packetTitle;
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/* Title packet actions ENUM */
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private Class<?> packetActions;
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/* Chat serializer */
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private Class<?> nmsChatSerializer;
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/* Title text and color */
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private String title = "";
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private ChatColor titleColor = ChatColor.WHITE;
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/* Subtitle text and color */
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private String subtitle = "";
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private ChatColor subtitleColor = ChatColor.WHITE;
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/* Title timings */
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private int fadeInTime = -1;
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private int stayTime = -1;
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private int fadeOutTime = -1;
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private boolean ticks = false;
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private static final Map<Class<?>, Class<?>> CORRESPONDING_TYPES = new HashMap<>();
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/**
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* Create a new 1.8 title
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*
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* @param title
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* Title
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* @throws ClassNotFoundException
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*/
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public HackTitleManager(final String title) throws ClassNotFoundException {
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this.title = title;
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loadClasses();
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}
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/**
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* Create a new 1.8 title
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*
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* @param title
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* Title text
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* @param subtitle
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* Subtitle text
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* @throws ClassNotFoundException
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*/
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public HackTitleManager(final String title, final String subtitle) throws ClassNotFoundException {
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this.title = title;
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this.subtitle = subtitle;
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loadClasses();
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}
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/**
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* Copy 1.8 title
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*
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* @param title
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* Title
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* @throws ClassNotFoundException
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*/
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public HackTitleManager(final HackTitleManager title) throws ClassNotFoundException {
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// Copy title
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this.title = title.title;
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subtitle = title.subtitle;
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titleColor = title.titleColor;
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subtitleColor = title.subtitleColor;
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fadeInTime = title.fadeInTime;
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fadeOutTime = title.fadeOutTime;
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stayTime = title.stayTime;
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ticks = title.ticks;
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loadClasses();
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}
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/**
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* Create a new 1.8 title
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*
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* @param title
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* Title text
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* @param subtitle
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* Subtitle text
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* @param fadeInTime
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* Fade in time
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* @param stayTime
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* Stay on screen time
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* @param fadeOutTime
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* Fade out time
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* @throws ClassNotFoundException
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*/
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public HackTitleManager(final String title, final String subtitle, final int fadeInTime, final int stayTime, final int fadeOutTime) throws ClassNotFoundException {
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this.title = title;
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this.subtitle = subtitle;
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this.fadeInTime = fadeInTime;
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this.stayTime = stayTime;
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this.fadeOutTime = fadeOutTime;
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loadClasses();
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}
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/**
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* Load spigot and NMS classes
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* @throws ClassNotFoundException
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*/
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private void loadClasses() throws ClassNotFoundException {
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packetTitle = getClass("org.spigotmc.ProtocolInjector$PacketTitle");
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packetActions = getClass("org.spigotmc.ProtocolInjector$PacketTitle$Action");
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nmsChatSerializer = getNMSClass("ChatSerializer");
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}
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/**
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* Set title text
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*
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* @param title
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* Title
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*/
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public void setTitle(final String title) {
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this.title = title;
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}
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/**
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* Get title text
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*
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* @return Title text
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*/
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public String getTitle() {
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return title;
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}
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/**
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* Set subtitle text
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*
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* @param subtitle
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* Subtitle text
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*/
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public void setSubtitle(final String subtitle) {
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this.subtitle = subtitle;
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}
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/**
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* Get subtitle text
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*
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* @return Subtitle text
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*/
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public String getSubtitle() {
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return subtitle;
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}
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/**
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* Set the title color
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*
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* @param color
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* Chat color
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*/
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public void setTitleColor(final ChatColor color) {
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titleColor = color;
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}
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/**
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* Set the subtitle color
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*
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* @param color
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* Chat color
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*/
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public void setSubtitleColor(final ChatColor color) {
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subtitleColor = color;
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}
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/**
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* Set title fade in time
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*
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* @param time
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* Time
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*/
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public void setFadeInTime(final int time) {
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fadeInTime = time;
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}
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/**
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* Set title fade out time
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*
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* @param time
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* Time
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*/
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public void setFadeOutTime(final int time) {
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fadeOutTime = time;
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}
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/**
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* Set title stay time
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*
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* @param time
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* Time
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*/
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public void setStayTime(final int time) {
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stayTime = time;
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}
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/**
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* Set timings to ticks
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*/
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public void setTimingsToTicks() {
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ticks = true;
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}
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/**
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* Set timings to seconds
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*/
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public void setTimingsToSeconds() {
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ticks = false;
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}
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/**
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* Send the title to a player
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*
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* @param player
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* Player
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*/
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public void send(final Player player) throws Exception {
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if ((getProtocolVersion(player) >= 47) && isSpigot() && (packetTitle != null)) {
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// First reset previous settings
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resetTitle(player);
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// Send timings first
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final Object handle = getHandle(player);
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final Object connection = getField(handle.getClass(), "playerConnection").get(handle);
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final Object[] actions = packetActions.getEnumConstants();
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final Method sendPacket = getMethod(connection.getClass(), "sendPacket");
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Object packet = packetTitle.getConstructor(packetActions, Integer.TYPE, Integer.TYPE, Integer.TYPE).newInstance(actions[2], fadeInTime * (ticks ? 1 : 20), stayTime * (ticks ? 1 : 20),
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fadeOutTime * (ticks ? 1 : 20));
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// Send if set
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if ((fadeInTime != -1) && (fadeOutTime != -1) && (stayTime != -1)) {
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sendPacket.invoke(connection, packet);
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}
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// Send title
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Object serialized = getMethod(nmsChatSerializer, "a", String.class).invoke(null,
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"{text:\"" + ChatColor.translateAlternateColorCodes('&', title) + "\",color:" + titleColor.name().toLowerCase() + "}");
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packet = packetTitle.getConstructor(packetActions, getNMSClass("IChatBaseComponent")).newInstance(actions[0], serialized);
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sendPacket.invoke(connection, packet);
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if (!subtitle.isEmpty()) {
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// Send subtitle if present
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serialized = getMethod(nmsChatSerializer, "a", String.class).invoke(null,
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"{text:\"" + ChatColor.translateAlternateColorCodes('&', subtitle) + "\",color:" + subtitleColor.name().toLowerCase() + "}");
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packet = packetTitle.getConstructor(packetActions, getNMSClass("IChatBaseComponent")).newInstance(actions[1], serialized);
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sendPacket.invoke(connection, packet);
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}
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}
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}
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/**
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* Broadcast the title to all players
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*/
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public void broadcast() throws Exception {
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for (final Player p : Bukkit.getOnlinePlayers()) {
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send(p);
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}
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}
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/**
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* Clear the title
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*
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* @param player
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* Player
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* @throws Exception
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*/
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public void clearTitle(final Player player) throws Exception {
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if ((getProtocolVersion(player) >= 47) && isSpigot()) {
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// Send timings first
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final Object handle = getHandle(player);
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final Object connection = getField(handle.getClass(), "playerConnection").get(handle);
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final Object[] actions = packetActions.getEnumConstants();
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final Method sendPacket = getMethod(connection.getClass(), "sendPacket");
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final Object packet = packetTitle.getConstructor(packetActions).newInstance(actions[3]);
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sendPacket.invoke(connection, packet);
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}
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}
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/**
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* Reset the title settings
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*
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* @param player
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* Player
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* @throws Exception
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*/
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public void resetTitle(final Player player) throws Exception {
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if ((getProtocolVersion(player) >= 47) && isSpigot()) {
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// Send timings first
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final Object handle = getHandle(player);
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final Object connection = getField(handle.getClass(), "playerConnection").get(handle);
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final Object[] actions = packetActions.getEnumConstants();
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final Method sendPacket = getMethod(connection.getClass(), "sendPacket");
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final Object packet = packetTitle.getConstructor(packetActions).newInstance(actions[4]);
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sendPacket.invoke(connection, packet);
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}
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}
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/**
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* Get the protocol version of the player
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*
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* @param player
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* Player
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* @return Protocol version
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* @throws Exception
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*/
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private int getProtocolVersion(final Player player) throws Exception {
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final Object handle = getHandle(player);
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final Object connection = getField(handle.getClass(), "playerConnection").get(handle);
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final Object networkManager = getValue("networkManager", connection);
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return (Integer) getMethod("getVersion", networkManager.getClass()).invoke(networkManager);
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}
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/**
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* Check if running spigot
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*
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* @return Spigot
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*/
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private boolean isSpigot() {
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return Bukkit.getVersion().contains("Spigot");
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}
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/**
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* Get class by url
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*
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* @param namespace
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* Namespace url
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* @return Class
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*/
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private Class<?> getClass(final String namespace) {
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try {
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return Class.forName(namespace);
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} catch (ClassNotFoundException e) {
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}
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return null;
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}
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private Field getField(final String name, final Class<?> clazz) throws Exception {
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return clazz.getDeclaredField(name);
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}
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private Object getValue(final String name, final Object obj) throws Exception {
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final Field f = getField(name, obj.getClass());
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f.setAccessible(true);
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return f.get(obj);
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}
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private Class<?> getPrimitiveType(final Class<?> clazz) {
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return CORRESPONDING_TYPES.containsKey(clazz) ? CORRESPONDING_TYPES.get(clazz) : clazz;
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}
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private Class<?>[] toPrimitiveTypeArray(final Class<?>[] classes) {
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final int a = classes != null ? classes.length : 0;
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final Class<?>[] types = new Class<?>[a];
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for (int i = 0; i < a; i++) {
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types[i] = getPrimitiveType(classes[i]);
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}
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return types;
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}
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private static boolean equalsTypeArray(final Class<?>[] a, final Class<?>[] o) {
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if (a.length != o.length) {
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return false;
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}
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for (int i = 0; i < a.length; i++) {
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if (!a[i].equals(o[i]) && !a[i].isAssignableFrom(o[i])) {
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return false;
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}
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}
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return true;
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}
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private Object getHandle(final Object obj) {
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try {
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return getMethod("getHandle", obj.getClass()).invoke(obj);
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} catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException e) {
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e.printStackTrace();
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return null;
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}
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}
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private Method getMethod(final String name, final Class<?> clazz, final Class<?>... paramTypes) {
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final Class<?>[] t = toPrimitiveTypeArray(paramTypes);
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for (final Method m : clazz.getMethods()) {
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final Class<?>[] types = toPrimitiveTypeArray(m.getParameterTypes());
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if (m.getName().equals(name) && equalsTypeArray(types, t)) {
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return m;
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}
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}
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return null;
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}
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private String getVersion() {
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final String name = Bukkit.getServer().getClass().getPackage().getName();
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return name.substring(name.lastIndexOf('.') + 1) + ".";
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}
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private Class<?> getNMSClass(final String className) throws ClassNotFoundException {
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final String fullName = "net.minecraft.server." + getVersion() + className;
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return Class.forName(fullName);
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}
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private Field getField(final Class<?> clazz, final String name) {
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try {
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final Field field = clazz.getDeclaredField(name);
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field.setAccessible(true);
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return field;
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} catch (SecurityException | NoSuchFieldException e) {
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e.printStackTrace();
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return null;
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}
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}
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private Method getMethod(final Class<?> clazz, final String name, final Class<?>... args) {
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for (final Method m : clazz.getMethods()) {
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if (m.getName().equals(name) && ((args.length == 0) || ClassListEqual(args, m.getParameterTypes()))) {
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m.setAccessible(true);
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return m;
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}
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}
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return null;
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}
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private boolean ClassListEqual(final Class<?>[] l1, final Class<?>[] l2) {
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if (l1.length != l2.length) {
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return false;
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}
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boolean equal = true;
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for (int i = 0; i < l1.length; i++) {
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if (l1[i] != l2[i]) {
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equal = false;
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break;
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}
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}
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return equal;
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}
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}
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