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.world.block; 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.VanillaByteBufUtils; import org.spout.vanilla.protocol.msg.world.block.SignMessage; public final class SignCodec extends MessageCodec<SignMessage> { public SignCodec() { super(SignMessage.class, 0x82); } @Override public SignMessage decode(ByteBuf buffer) throws IOException { int x = buffer.readInt(); int y = buffer.readShort(); int z = buffer.readInt(); String[] message = new String[4]; for (int i = 0; i < message.length; i++) { String line = VanillaByteBufUtils.readString(buffer); if (line == null) { line = ""; } message[i] = line; } return new SignMessage(x, y, z, message, NullRepositionManager.getInstance()); } @Override public ByteBuf encode(SignMessage message) throws IOException { String[] lines = message.getMessage(); ByteBuf buffer = Unpooled.buffer(); buffer.writeInt(message.getX()); buffer.writeShort(message.getY()); buffer.writeInt(message.getZ()); for (String line : lines) { if (line == null) { line = ""; } VanillaByteBufUtils.writeString(buffer, line); } return buffer; } }