com.github.shynixn.petblocks.bukkit.logic.business.helper.ChatBuilderExtension.kt Maven / Gradle / Ivy
package com.github.shynixn.petblocks.bukkit.logic.business.helper
import com.github.shynixn.petblocks.bukkit.nms.VersionSupport
import com.github.shynixn.petblocks.core.logic.business.helper.ChatBuilder
import com.github.shynixn.petblocks.core.logic.business.helper.ChatColor
import com.github.shynixn.petblocks.core.logic.business.helper.ReflectionUtils.invokeConstructor
import org.bukkit.Bukkit
import org.bukkit.entity.Player
import java.lang.reflect.InvocationTargetException
import java.util.logging.Level
/**
* Created by Shynixn 2018.
*
* Version 1.2
*
* MIT License
*
* Copyright (c) 2018 by Shynixn
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
/**
* Sends the built message to the given players
*
* @param players players
*/
fun ChatBuilder.sendMessage(vararg players: Player) {
val finalMessage = StringBuilder()
val cache = StringBuilder()
finalMessage.append("{\"text\": \"\"")
finalMessage.append(", \"extra\" : [")
var firstExtra = false
for (component in this.components) {
if (component !is ChatColor && firstExtra) {
finalMessage.append(", ")
}
when (component) {
is ChatColor -> cache.append(component)
is String -> {
finalMessage.append("{\"text\": \"")
finalMessage.append(ChatColor.translateAlternateColorCodes('&', cache.toString() + component))
finalMessage.append("\"}")
cache.setLength(0)
firstExtra = true
}
else -> {
finalMessage.append(component)
firstExtra = true
}
}
}
finalMessage.append("]}")
try {
val clazz: Class<*> = if (Bukkit.getServer()::class.java.`package`.name.replace(".", ",").split(",")[3] == "v1_8_R1") {
Class.forName("net.minecraft.server.VERSION.ChatSerializer".findServerVersion())
} else {
Class.forName("net.minecraft.server.VERSION.IChatBaseComponent\$ChatSerializer".findServerVersion())
}
val packetClazz = Class.forName("net.minecraft.server.VERSION.PacketPlayOutChat".findServerVersion())
val chatBaseComponentClazz = Class.forName("net.minecraft.server.VERSION.IChatBaseComponent".findServerVersion())
val method = clazz.getDeclaredMethod("a", String::class.java)
method.isAccessible = true
val chatComponent = method.invoke(null, finalMessage.toString())
val packet: Any
packet = if (VersionSupport.getServerVersion().isVersionSameOrGreaterThan(VersionSupport.VERSION_1_12_R1)) {
val chatEnumMessage = Class.forName("net.minecraft.server.VERSION.ChatMessageType".findServerVersion())
invokeConstructor(packetClazz, arrayOf(chatBaseComponentClazz, chatEnumMessage), arrayOf(chatComponent, chatEnumMessage.enumConstants[0]))
} else {
invokeConstructor(packetClazz, arrayOf(chatBaseComponentClazz, Byte::class.javaPrimitiveType!!), arrayOf(chatComponent, 0.toByte()))
}
for (player in players) {
sendPacket(player, packet)
}
} catch (e: Exception) {
Bukkit.getLogger().log(Level.WARNING, "Failed to send packet.", e)
}
}
/**
* Sends a packet to the client player
*
* @param player player
* @param packet packet
* @throws ClassNotFoundException exception
* @throws IllegalAccessException exception
* @throws NoSuchMethodException exception
* @throws InvocationTargetException exception
* @throws NoSuchFieldException exception
*/
@Throws(ClassNotFoundException::class, IllegalAccessException::class, NoSuchMethodException::class, InvocationTargetException::class, NoSuchFieldException::class)
private fun sendPacket(player: Player, packet: Any) {
val craftPlayer = Class.forName("org.bukkit.craftbukkit.VERSION.entity.CraftPlayer".findServerVersion()).cast(player)
val entityPlayer = craftPlayer.javaClass.getDeclaredMethod("getHandle").invoke(craftPlayer)
val field = entityPlayer.javaClass.getDeclaredField("playerConnection")
field.isAccessible = true
val connection = field.get(entityPlayer)
connection.javaClass.getDeclaredMethod("sendPacket", packet.javaClass.interfaces[0]).invoke(connection, packet)
}