project_files/Android-build/SDL-android-project/src/org/hedgewars/hedgeroid/GameConnection.java
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/*
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 * Hedgewars for Android. An Android port of Hedgewars, a free turn based strategy game
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 * Copyright (C) 2012 Simeon Maxein <smaxein@googlemail.com>
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 *
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 * This program is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU General Public License
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 * as published by the Free Software Foundation; either version 2
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 * of the License, or (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
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 */
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package org.hedgewars.hedgeroid;
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import java.net.ConnectException;
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import org.hedgewars.hedgeroid.Datastructures.GameConfig;
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import org.hedgewars.hedgeroid.frontlib.Flib;
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import org.hedgewars.hedgeroid.frontlib.Frontlib;
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import org.hedgewars.hedgeroid.frontlib.Frontlib.ByteArrayPtr;
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import org.hedgewars.hedgeroid.frontlib.Frontlib.BytesCallback;
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import org.hedgewars.hedgeroid.frontlib.Frontlib.GameSetupPtr;
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import org.hedgewars.hedgeroid.frontlib.Frontlib.GameconnPtr;
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import org.hedgewars.hedgeroid.frontlib.Frontlib.IntCallback;
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import org.hedgewars.hedgeroid.frontlib.Frontlib.StrBoolCallback;
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import org.hedgewars.hedgeroid.frontlib.Frontlib.StrCallback;
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import org.hedgewars.hedgeroid.frontlib.Frontlib.VoidCallback;
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import org.hedgewars.hedgeroid.frontlib.NativeSizeT;
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import org.hedgewars.hedgeroid.netplay.GameMessageListener;
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import org.hedgewars.hedgeroid.netplay.Netplay;
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import org.hedgewars.hedgeroid.util.TickHandler;
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import android.os.Handler;
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import android.os.HandlerThread;
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import android.os.Looper;
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import android.util.Log;
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import com.sun.jna.Pointer;
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/**
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 * This class handles both talking to the engine (IPC) for running a game, and
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 * coordinating with the netconn if it is a netgame, using the frontlib for the
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 * actual IPC networking communication.
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 *
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 * After creating the GameConnection object, it will communicate with the engine
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 * on its own thread. It shuts itself down as soon as the connection to the engine
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 * is lost.
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 */
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public final class GameConnection {
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    private static final Handler mainHandler = new Handler(Looper.getMainLooper());
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    public final int port;
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    private final HandlerThread thread;
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    private final Handler handler;
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    private TickHandler tickHandler;
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    private final Netplay netplay; // ==null if not a netgame
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    private GameconnPtr conn;
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    private GameConnection(GameconnPtr conn, Netplay netplay) {
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        this.conn = conn;
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        this.port = Flib.INSTANCE.flib_gameconn_getport(conn);
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        this.netplay = netplay;
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        this.thread = new HandlerThread("IPCThread");
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        thread.start();
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        this.handler = new Handler(thread.getLooper());
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    }
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    private void setupConnection() {
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        tickHandler = new TickHandler(thread.getLooper(), 50, tickCb);
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        tickHandler.start();
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        if(netplay != null) {
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            mainHandler.post(new Runnable() {
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                public void run() {
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                    netplay.registerGameMessageListener(gameMessageListener);
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                }
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            });
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            Flib.INSTANCE.flib_gameconn_onChat(conn, chatCb, null);
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            Flib.INSTANCE.flib_gameconn_onEngineMessage(conn, engineMessageCb, null);
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        }
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        Flib.INSTANCE.flib_gameconn_onConnect(conn, connectCb, null);
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        Flib.INSTANCE.flib_gameconn_onDisconnect(conn, disconnectCb, null);
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        Flib.INSTANCE.flib_gameconn_onErrorMessage(conn, errorMessageCb, null);
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    }
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    /**
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     * Start a new IPC server to communicate with the engine.
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     * Performs networking operations, don't run on the UI thread.
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     * @throws ConnectException if we can't set up the IPC server
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     */
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    public static GameConnection forNetgame(final GameConfig config, Netplay netplay) throws ConnectException {
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        final String playerName = netplay.getPlayerName();
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        GameconnPtr conn = Flib.INSTANCE.flib_gameconn_create(playerName, GameSetupPtr.createJavaOwned(config), true);
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        if(conn == null) {
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            throw new ConnectException();
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        }
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        GameConnection result = new GameConnection(conn, netplay);
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        result.setupConnection();
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        return result;
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    }
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    /**
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     * Start a new IPC server to communicate with the engine.
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     * Performs networking operations, don't run on the UI thread.
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     * @throws ConnectException if we can't set up the IPC server
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     */
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    public static GameConnection forLocalGame(final GameConfig config) throws ConnectException {
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        GameconnPtr conn = Flib.INSTANCE.flib_gameconn_create("Player", GameSetupPtr.createJavaOwned(config), false);
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        if(conn == null) {
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            throw new ConnectException();
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        }
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        GameConnection result = new GameConnection(conn, null);
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        result.setupConnection();
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        return result;
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    }
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    private final Runnable tickCb = new Runnable() {
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        public void run() {
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            Flib.INSTANCE.flib_gameconn_tick(conn);
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        }
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    };
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    // runs on the IPCThread
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    private void shutdown() {
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        tickHandler.stop();
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        thread.quit();
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        Flib.INSTANCE.flib_gameconn_destroy(conn);
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        conn = null;
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        if(netplay != null) {
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            mainHandler.post(new Runnable() {
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                public void run() {
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                    netplay.unregisterGameMessageListener(gameMessageListener);
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                }
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            });
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        }
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    }
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    // runs on the IPCThread
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    private final StrBoolCallback chatCb = new StrBoolCallback() {
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        public void callback(Pointer context, String message, boolean teamChat) {
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            if(teamChat) {
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                netplay.sendTeamChat(message);
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            } else {
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                netplay.sendChat(message);
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            }
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        }
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    };
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    // runs on the IPCThread
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    private final VoidCallback connectCb = new VoidCallback() {
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        public void callback(Pointer context) {
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            Log.i("GameConnection", "Connected");
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        }
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    };
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    // runs on the IPCThread
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    private final IntCallback disconnectCb = new IntCallback() {
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        public void callback(Pointer context, int reason) {
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            if(netplay != null) {
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                netplay.sendRoundFinished(reason==Frontlib.GAME_END_FINISHED);
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            }
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            shutdown();
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        }
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    };
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    // runs on the IPCThread
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    private final BytesCallback engineMessageCb = new BytesCallback() {
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        public void callback(Pointer context, ByteArrayPtr buffer, NativeSizeT size) {
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            netplay.sendEngineMessage(buffer.deref(size.intValue()));
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        }
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    };
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    // runs on the IPCThread
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    private final StrCallback errorMessageCb = new StrCallback() {
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        public void callback(Pointer context, String message) {
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            Log.e("GameConnection", message);
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        }
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    };
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    // runs on any thread
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    private final GameMessageListener gameMessageListener = new GameMessageListener() {
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        public void onNetDisconnected() {
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            handler.post(new Runnable() {
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                public void run() {
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                    Flib.INSTANCE.flib_gameconn_send_quit(conn);
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                }
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            });
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        }
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        public void onMessage(final int type, final String message) {
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            handler.post(new Runnable() {
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                public void run() {
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                    Flib.INSTANCE.flib_gameconn_send_textmsg(conn, type, message);
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                }
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            });
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        }
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        public void onEngineMessage(final byte[] em) {
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            handler.post(new Runnable() {
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                public void run() {
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                    ByteArrayPtr ptr = ByteArrayPtr.createJavaOwned(em);
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                    Flib.INSTANCE.flib_gameconn_send_enginemsg(conn, ptr, NativeSizeT.valueOf(em.length));
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                }
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            });
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        }
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        public void onChatMessage(final String nick, final String message) {
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            handler.post(new Runnable() {
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                public void run() {
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                    Flib.INSTANCE.flib_gameconn_send_chatmsg(conn, nick, message);
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                }
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            });
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        }
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    };
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763d3961400b Hedgeroid: Frantic scrabbling toward the deadline
Medo <smaxein@googlemail.com>
parents:
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}