+
−/*
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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
+
− * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
− */
+
−
+
−package org.hedgewars.hedgeroid.util;
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−
+
−import android.os.Handler;
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−import android.os.Looper;
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−import android.os.Message;
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−
+
−/**
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− * This class handles regularly calling a specified runnable
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− * on the looper provided in the constructor. The first call
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− * occurs without delay (though still via the looper), all
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− * following calls are delayed by (approximately) the interval.
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− * The interval can be changed at any time, which will cause
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− * an immediate execution of the runnable again.
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− */
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−public class TickHandler extends Handler {
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−    private final Runnable callback;
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−    private int messageId;
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−    private long interval;
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−    private boolean running;
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−
+
−    public TickHandler(Looper looper, long interval, Runnable callback) {
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−        super(looper);
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−        this.callback = callback;
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−        this.interval = interval;
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−    }
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−
+
−    public synchronized void stop() {
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−        messageId++;
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−        running = false;
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−    }
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−
+
−    public synchronized void start() {
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−        messageId++;
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−        sendMessage(obtainMessage(messageId));
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−        running = true;
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−    }
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−
+
−    public synchronized void setInterval(long interval) {
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−        this.interval = interval;
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−        if(running) {
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−            start();
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−        }
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−    }
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−
+
−    @Override
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−    public synchronized void handleMessage(Message msg) {
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−        if(msg.what == messageId) {
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−            callback.run();
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−        }
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−        if(msg.what == messageId) {
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−            sendMessageDelayed(obtainMessage(messageId), interval);
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−        }
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−    }
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−}