periodicaffector.java

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// Decompiled by Jad v1.5.7g. Copyright 2000 Pavel Kouznetsov.
// Jad home page: http://www.geocities.com/SiliconValley/Bridge/8617/jad.html
// Decompiler options: packimports(3) 
// Source File Name:   PeriodicAffector.java

package se.southend.drops.integeraffector;

import se.southend.drops.screen.ScreenEngine;

// Referenced classes of package se.southend.drops.integeraffector:
//            Affector

public abstract class PeriodicAffector extends Affector
{

    public PeriodicAffector(int period)
    {
        this(period, 0);
    }

    public PeriodicAffector(int period, int delay)
    {
        this.period = period;
        startTime = ScreenEngine.getInstance().getTime() + (long)delay;
        nextUpdate = startTime + (long)period;
    }

    public void process()
    {
        if(isUpdated)
        {
            run();
            isUpdated = false;
        }
    }

    public void update(long time)
    {
        if(period <= 0)
            isFinished = true;
        else
        if(time >= nextUpdate)
        {
            do
                nextUpdate += period;
            while(nextUpdate <= time);
            isUpdated = true;
        }
    }

    protected int period;
    protected long nextUpdate;
    protected boolean isUpdated;
}