Created
August 2, 2014 22:59
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| package me.YourName.tutorial.utils; | |
| import java.lang.reflect.Field; | |
| import java.lang.reflect.InvocationTargetException; | |
| import java.lang.reflect.Method; | |
| import org.bukkit.Bukkit; | |
| import org.bukkit.Location; | |
| import org.bukkit.entity.Player; | |
| public class ParticleUtils { | |
| private static String version = ""; | |
| static Object packet; | |
| private static Method getHandle; | |
| private static Method sendPacket; | |
| private static Field playerConnection; | |
| private static Class<?> packetType; | |
| static { | |
| try { | |
| version = Bukkit.getServer().getClass().getPackage().getName() | |
| .split("\\.")[3]; | |
| packetType = Class.forName(getPacketPlayOutParticles()); | |
| Class<?> typeCraftPlayer = Class.forName(getCraftPlayerClasspath()); | |
| Class<?> typeNMSPlayer = Class.forName(getNMSPlayerClasspath()); | |
| Class<?> typePlayerConnection = Class | |
| .forName(getPlayerConnectionClasspath()); | |
| getHandle = typeCraftPlayer.getMethod("getHandle"); | |
| playerConnection = typeNMSPlayer.getField("playerConnection"); | |
| sendPacket = typePlayerConnection.getMethod("sendPacket", | |
| Class.forName(getPacketClasspath())); | |
| } catch (Exception e) { | |
| System.out | |
| .println("Failed to setup reflection for PacketPlayOutWorldParticles"); | |
| e.printStackTrace(); | |
| } | |
| } | |
| private static void setField(String field, Object value) | |
| throws NoSuchFieldException, IllegalAccessException { | |
| Field f = packet.getClass().getDeclaredField(field); | |
| f.setAccessible(true); | |
| f.set(packet, value); | |
| } | |
| // Particle Effects | |
| public static void spawnParticles(Location loc, Player receivingPacket, | |
| String packetname, int amount) throws ClassNotFoundException, | |
| IllegalAccessException, InstantiationException, | |
| NoSuchMethodException, NoSuchFieldException, | |
| IllegalArgumentException, InvocationTargetException { | |
| packet = packetType.newInstance(); | |
| setField("a", packetname); // Particle name | |
| setField("b", loc.getBlockX()); // Block X | |
| setField("c", loc.getBlockY()); // Block Y | |
| setField("d", loc.getBlockZ()); // Block Z | |
| setField("e", 1); // Random X Offset | |
| setField("f", 1); // Random Y Offset | |
| setField("g", 1); // Random Z Offset | |
| setField("h", 0); // Speed/data of particles | |
| setField("i", amount); // Amount of particles | |
| Object player = getHandle.invoke(receivingPacket); | |
| Object connection = playerConnection.get(player); | |
| sendPacket.invoke(connection, packet); | |
| } | |
| private static String getCraftPlayerClasspath() { | |
| return "org.bukkit.craftbukkit." + version + ".entity.CraftPlayer"; | |
| } | |
| private static String getPlayerConnectionClasspath() { | |
| return "net.minecraft.server." + version + ".PlayerConnection"; | |
| } | |
| private static String getNMSPlayerClasspath() { | |
| return "net.minecraft.server." + version + ".EntityPlayer"; | |
| } | |
| private static String getPacketClasspath() { | |
| return "net.minecraft.server." + version + ".Packet"; | |
| } | |
| private static String getPacketPlayOutParticles() { | |
| if (Integer.valueOf(version.split("_")[1]) < 7 | |
| && Integer.valueOf(version.toLowerCase().split("_")[0].replace( | |
| "v", "")) == 1) { | |
| return "net.minecraft.server." + version | |
| + ".Packet63WorldParticles"; | |
| } else { | |
| return "net.minecraft.server." + version | |
| + ".PacketPlayOutWorldParticles"; | |
| } | |
| } | |
| } |
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