org.rifidi.utilities.simplejmeswt.UpdateThread.java Source code

Introduction

Here is the source code for org.rifidi.utilities.simplejmeswt.UpdateThread.java

Source

/*
 *  UpdateThread.java
 *
 *  Project:      RiFidi IDE 2.0 - A Virtualization tool for 3D RFID environments
 *  http://www.rifidi.org
 *  http://rifidi.sourceforge.net
 *  Copyright:       Pramari LLC and the Rifidi Project
 *  License:      Lesser GNU Public License (LGPL)
 *  http://www.opensource.org/licenses/lgpl-license.html
 */
package org.rifidi.utilities.simplejmeswt;

import java.util.concurrent.locks.ReentrantLock;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import com.jme.scene.Node;
import com.jme.util.GameTaskQueue;
import com.jme.util.GameTaskQueueManager;
import com.jme.util.Timer;

/**
 * @author Jochen Mader
 * @author Dan West
 */
public class UpdateThread extends Thread {

    private Log logger = LogFactory.getLog(UpdateThread.class);

    private boolean keepRunning = true;

    private Timer timer;

    private float lasttick;

    private Node rootNode;

    private ReentrantLock lock;

    public UpdateThread(ReentrantLock lock, Node rootNode) {
        logger.debug("New UpdateThread instantiated.");
        this.rootNode = rootNode;
        this.lock = lock;
        timer = Timer.getTimer();
        timer.reset();
    }

    /* (non-Javadoc)
     * @see java.lang.Thread#run()
     */
    @Override
    public void run() {
        logger.debug("UpdateThread started.");
        lasttick = timer.getTimeInSeconds();
        float currentTime = 0.0f;
        while (keepRunning) {
            lock.lock();
            timer.update();
            currentTime = timer.getTimeInSeconds();
            float dt = currentTime - lasttick;

            GameTaskQueueManager.getManager().getQueue(GameTaskQueue.UPDATE).execute();

            // TODO i believe this is occasionally causing threading errors
            // it might make sense for this to be in the render
            //  thread, but that doesn't update as often as this does
            rootNode.updateGeometricState(0, true);
            rootNode.updateWorldData(dt);
            rootNode.updateRenderState();

            lock.unlock();

            lasttick = currentTime;
            try {
                sleep(10);
            } catch (InterruptedException e) {
                // we can ignore this buddy
            }
        }
        logger.debug("UpdateThread stopped.");
    }

    /**
     * @return the keepRunninung
     */
    public boolean isKeepRunninung() {
        return keepRunning;
    }

    /**
     * @param keepRunninung
     *            the keepRunninung to set
     */
    public void setKeepRunning(boolean keepRunning) {
        this.keepRunning = keepRunning;
    }

}