Java tutorial
/* * This file is part of Vanilla. * * Copyright (c) 2011 Spout LLC <http://www.spout.org/> * Vanilla is licensed under the Spout License Version 1. * * Vanilla is free software: you can redistribute it and/or modify it under * the terms of the GNU Lesser General Public License as published by the Free * Software Foundation, either version 3 of the License, or (at your option) * any later version. * * In addition, 180 days after any changes are published, you can use the * software, incorporating those changes, under the terms of the MIT license, * as described in the Spout License Version 1. * * Vanilla is distributed in the hope that it will be useful, but WITHOUT ANY * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for * more details. * * You should have received a copy of the GNU Lesser General Public License, * the MIT license and the Spout License Version 1 along with this program. * If not, see <http://www.gnu.org/licenses/> for the GNU Lesser General Public * License and see <http://spout.in/licensev1> for the full license, including * the MIT license. */ package org.spout.vanilla.protocol.codec.player.pos; import java.io.IOException; import io.netty.buffer.ByteBuf; import io.netty.buffer.Unpooled; import org.spout.api.protocol.MessageCodec; import org.spout.api.protocol.reposition.NullRepositionManager; import org.spout.vanilla.protocol.msg.player.pos.PlayerPositionMessage; public final class PlayerPositionCodec extends MessageCodec<PlayerPositionMessage> { public PlayerPositionCodec() { super(PlayerPositionMessage.class, 0x0B); } @Override public PlayerPositionMessage decode(ByteBuf buffer) throws IOException { double x = buffer.readDouble(); double y = buffer.readDouble(); double stance = buffer.readDouble(); double z = buffer.readDouble(); boolean flying = buffer.readByte() == 1; return new PlayerPositionMessage(x, y, z, stance, flying, NullRepositionManager.getInstance()); } @Override public ByteBuf encode(PlayerPositionMessage message) throws IOException { ByteBuf buffer = Unpooled.buffer(33); buffer.writeDouble(message.getX()); buffer.writeDouble(message.getY()); buffer.writeDouble(message.getStance()); buffer.writeDouble(message.getZ()); buffer.writeByte(message.isOnGround() ? 1 : 0); return buffer; } }