Java tutorial
/* * Trident - A Multithreaded Server Alternative * Copyright 2014 The TridentSDK Team * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package net.tridentsdk.server.packets.play.in; import io.netty.buffer.ByteBuf; import net.tridentsdk.Position; import net.tridentsdk.event.player.PlayerTabCompleteEvent; import net.tridentsdk.server.netty.ClientConnection; import net.tridentsdk.server.netty.Codec; import net.tridentsdk.server.netty.packet.InPacket; import net.tridentsdk.server.netty.packet.Packet; import net.tridentsdk.server.packets.play.out.PacketPlayOutTabComplete; import net.tridentsdk.server.player.PlayerConnection; /** * Sent when the user presses tab while writing text. The payload contains all text behind the cursor. */ public class PacketPlayInTabComplete extends InPacket { /** * Text currently written */ protected String text; /** * If player is looking at a specific block */ protected boolean hasPosition; /** * PositionWritable of the block the player is looking at, only sent if hasPosition is true */ protected Position lookedAtBlock; @Override public int id() { return 0x14; } @Override public Packet decode(ByteBuf buf) { this.text = Codec.readString(buf); this.hasPosition = buf.readBoolean(); if (this.hasPosition) { long encoded = buf.readLong(); double x = (double) (encoded << 38); double y = (double) (encoded << 26 >> 52); double z = (double) (encoded << 38 >> 38); this.lookedAtBlock = Position.create(null, x, y, z); } return this; } public String text() { return this.text; } public boolean hasPosition() { return this.hasPosition; } public Position lookedAtBlock() { return this.lookedAtBlock; } @Override public void handleReceived(ClientConnection connection) { PlayerTabCompleteEvent event = new PlayerTabCompleteEvent(((PlayerConnection) connection).player(), this.text); if (event.suggestions().length > 0) { connection.sendPacket(new PacketPlayOutTabComplete().set("matches", event.suggestions())); } } }