PoisonWatcher.java

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/*
 * This file is part of JXClient, the Fullscreen Java Crossfire Client.
 *
 * JXClient is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * JXClient 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with JXClient; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * Copyright (C) 2005-2008 Yann Chachkoff
 * Copyright (C) 2006-2017,2019-2023 Andreas Kirschbaum
 * Copyright (C) 2010-2012,2014-2018,2020-2023 Nicolas Weeger
 */
 
package com.realtime.crossfire.jxclient.stats;
 
import com.realtime.crossfire.jxclient.server.crossfire.CrossfireDrawextinfoListener;
import com.realtime.crossfire.jxclient.server.crossfire.CrossfireServerConnection;
import java.awt.event.ActionListener;
import javax.swing.Timer;
import org.jetbrains.annotations.NotNull;
 
public class PoisonWatcher {
 
    private static final int TIMEOUT_DE_ASSERT = 10000;
 
    @NotNull
    private static final String ASSERT_MESSAGE = "You feel very sick...";
 
    @NotNull
    private static final String DE_ASSERT_MESSAGE = "You feel much better now.";
 
    @NotNull
    private static final String CURE_MESSAGE = "Your body feels cleansed";
 
    @NotNull
    private final Object sync = new Object();
 
    @NotNull
    private final Stats stats;
 
    private boolean active = true;
 
    private boolean serverSupportsPoisonedFlag;
 
    @NotNull
    @SuppressWarnings("FieldCanBeLocal")
    private final CrossfireDrawextinfoListener drawextinfoListener = new CrossfireDrawextinfoListener() {
 
        @Override
        public void commandDrawextinfoReceived(final int color, final int type, final int subtype, @NotNull final String message) {
            check(message);
        }
 
        @Override
        public void setDebugMode(final boolean printMessageTypes) {
            // ignore
        }
 
    };
 
    @NotNull
    @SuppressWarnings("FieldCanBeLocal")
    private final StatsListener statsListener = new StatsListener() {
 
        @Override
        public void resetBefore() {
        }
 
        @Override
        public void resetAfter() {
            synchronized (sync) {
                serverSupportsPoisonedFlag = false;
            }
        }
 
        @Override
        public void statChanged(final int statNo, final int value) {
            if (statNo == Stats.CS_STAT_CHARACTER_FLAGS) {
                synchronized (sync) {
                    serverSupportsPoisonedFlag = true;
                    setActive((value&Stats.CF_POISONED) != 0);
                }
            }
        }
 
        @Override
        public void simpleWeaponSpeedChanged(final boolean simpleWeaponSpeed) {
        }
 
        @Override
        public void titleChanged(@NotNull final String title) {
        }
 
        @Override
        public void godNameChanged(@NotNull final String godName) {
        }
 
        @Override
        public void rangeChanged(@NotNull final String range) {
        }
 
        @Override
        public void activeSkillChanged(@NotNull final String activeSkill) {
        }
 
        @Override
        public void experienceChanged(final long exp) {
        }
 
        @Override
        public void experienceNextLevelChanged(final long expNextLevel) {
        }
 
    };
 
    @NotNull
    private final ActionListener timeoutEvent = e -> {
        synchronized (sync) {
            if (!serverSupportsPoisonedFlag) {
                setActive(false);
            }
        }
    };
 
    @NotNull
    private final Timer timer = new Timer(TIMEOUT_DE_ASSERT, timeoutEvent);
 
    public PoisonWatcher(@NotNull final Stats stats, @NotNull final CrossfireServerConnection crossfireServerConnection) {
        this.stats = stats;
        timer.setRepeats(false);
        crossfireServerConnection.addCrossfireDrawinfoListener((text, type) -> check(text));
        crossfireServerConnection.addCrossfireDrawextinfoListener(drawextinfoListener);
        stats.addCrossfireStatsListener(statsListener);
        synchronized (sync) {
            setActive(false);
        }
    }
 
    private void check(@NotNull final String message) {
        synchronized (sync) {
            if (!serverSupportsPoisonedFlag) {
                if (message.equals(ASSERT_MESSAGE)) {
                    setActive(true);
                } else if (message.equals(DE_ASSERT_MESSAGE) || message.equals(CURE_MESSAGE)) {
                    setActive(false);
                }
            }
        }
    }
 
    private void setActive(final boolean active) {
        if (!Thread.holdsLock(sync)) {
            throw new IllegalStateException("thread should synchronize on sync");
        }
 
        if (!serverSupportsPoisonedFlag) {
            if (active) {
                timer.restart();
            } else {
                timer.stop();
            }
        }
 
        if (this.active == active) {
            return;
        }
 
        this.active = active;
        stats.setStat(Stats.C_STAT_POISONED, active ? 1 : 0);
    }
 
}