mmo.server.MessageReceiver.java Source code

Introduction

Here is the source code for mmo.server.MessageReceiver.java

Source

/*
 * Copyright 2015 Florian Hassanen
 *
 * This file is part of mmo-server.
 *
 * mmo-server is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * mmo-server 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public
 * License along with mmo-server.  If not, see
 * <http://www.gnu.org/licenses/>.
 */

package mmo.server;

import com.google.auto.factory.AutoFactory;
import com.google.auto.factory.Provided;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.SimpleChannelInboundHandler;
import io.netty.handler.codec.http.websocketx.WebSocketServerProtocolHandler;
import io.netty.util.HashedWheelTimer;
import io.netty.util.Timeout;
import io.netty.util.TimerTask;
import mmo.server.message.Attacking;
import mmo.server.message.Chat;
import mmo.server.message.Message;
import mmo.server.message.Moving;
import mmo.server.model.Direction;
import mmo.server.model.Player;

import java.util.concurrent.TimeUnit;

@AutoFactory
public class MessageReceiver extends SimpleChannelInboundHandler<Message> {
    private final HashedWheelTimer timer;

    private final HtmlCleaner htmlCleaner;

    private final GameLoop gameLoop;

    private final MessageHub messageHub;

    private final Player player;

    public MessageReceiver(@Provided HashedWheelTimer timer, @Provided HtmlCleaner htmlCleaner,
            @Provided GameLoop gameLoop, @Provided MessageHub messageHub, Player player) {

        this.timer = timer;

        this.htmlCleaner = htmlCleaner;

        this.gameLoop = gameLoop;

        this.messageHub = messageHub;

        this.player = player;
    }

    @Override
    public void userEventTriggered(ChannelHandlerContext ctx, Object evt) throws Exception {
        if (evt == WebSocketServerProtocolHandler.ServerHandshakeStateEvent.HANDSHAKE_COMPLETE) {
            messageHub.register(player, ctx.channel());
            gameLoop.login(player);
            welcomeMessages(player);
        }
        super.userEventTriggered(ctx, evt);
    }

    @Override
    protected void channelRead0(ChannelHandlerContext ctx, Message m) throws Exception {
        if (m instanceof Moving) {
            Direction dir = ((Moving) m).getDirection();

            if (dir != null) {
                gameLoop.moving(player, dir);
            }
        } else if (m instanceof Attacking) {
            Direction dir = ((Attacking) m).getDirection();

            if (dir != null) {
                gameLoop.attacking(player, dir);
            }
        } else if (m instanceof Chat) {
            String orig = ((Chat) m).getMessage();
            if (orig != null && !orig.trim().isEmpty()) {
                String clean = htmlCleaner.clean(orig);
                if (clean.isEmpty()) {
                    clean = "[message deleted]";
                }
                gameLoop.chat(player, clean);
            }
        }
    }

    @Override
    public void channelInactive(ChannelHandlerContext ctx) throws Exception {
        gameLoop.logout(player);
        messageHub.unregister(player);

        super.channelInactive(ctx);
    }

    private void welcomeMessages(final Player player) {
        String[] msgs = new String[] { "<big>Welcome to POS1-mmo!</big>",
                "<big><strong>Please use responsibly!</strong></big>",

                "Find code and updates here: " + "<ul>" + "<li>" + "<a href='https://github.com/H4ssi/mmo-server'>"
                        + "https://github.com/H4ssi/mmo-server" + "</a>" + "</li>" + "<li>"
                        + "<a href='https://github.com/H4ssi/mmo-client'>" + "https://github.com/H4ssi/mmo-client"
                        + "</a>" + "</li>" + "</ul>",

                "<small>mmo-server is free software, and you are welcome to "
                        + "redistribute it under the terms of the GNU AGPL: "
                        + "<a href='https://gnu.org/licenses/agpl.html'>" + "https://gnu.org/licenses/agpl.html"
                        + "</a></small>",

                "<small>This server will receive the newest features " + "and will be updated regularly!<br>"
                        + "For the a more stable version use " + "<a href='http://89.110.148.15:33333'>"
                        + "http://89.110.148.15:33333 (port 33333)" + "</a>" + "</small>",

                "<big><strong>hf</strong></big>" };

        int delay = 2;
        for (final String msg : msgs) {
            timer.newTimeout(new TimerTask() {
                @Override
                public void run(Timeout timeout) throws Exception {
                    messageHub.sendMessage(player, new Chat(null, msg));
                }
            }, delay, TimeUnit.SECONDS);
            delay += 1;
        }
    }
}