source: tmcsimulator/trunk/src/tmcsim/cadsimulator/managers/SimulationClockManager.java @ 123

package tmcsim.cadsimulator.managers;



import java.rmi.RemoteException;

import java.util.Timer;

import java.util.TimerTask;



import tmcsim.cadsimulator.Coordinator;

import tmcsim.common.CADEnums.SCRIPT_STATUS;



/** Manage the simulation clock, "the heartbeat of the simulation". */

public class SimulationClockManager  {



    /** 

     * Define what happens every second.

     */

    private class ClockTask extends TimerTask {     

        public void run() {

            currentSimTime++;

            theCoordinator.tick();

        }

    }

    

    /** The SimulationTimer used to keep track of simulation time. */

    private Timer simTimer = null;

    

    /**  */

    private Coordinator theCoordinator;

    

        /**

     * Boolean flag to designate whether the simulation has been started or not.

     */    

    private boolean simulationStarted;

    

    /**

     * Object used to count the number of seconds that the simulation has run.

     * The value is initialized to 0, and is reset to 0 every time a new simulation

     * is loaded, or the current simulation is stopped and reset.

     */

    private long currentSimTime;    

    

    

    public SimulationClockManager(Coordinator coor) {

        

        theCoordinator    = coor;       

        simulationStarted = false;

        currentSimTime    = 0;    

    }

    

    public boolean simulationStarted() {

        return simulationStarted;

    }

    

    public long getCurrentSimTime() {

        return currentSimTime;

    }

    

    public void gotoSimulationTime(long newSimTime) {

        currentSimTime = newSimTime;

    }

    

    public void startSimulation() {

        /** Start the clock running */    

        simTimer = new Timer();     

        simTimer.scheduleAtFixedRate(new ClockTask(), 0, 1000);

        

        simulationStarted = true;   

        

        theCoordinator.setScriptStatus(SCRIPT_STATUS.SCRIPT_RUNNING);

    }

    

    public void pauseSimulation() {  

        

        if(simTimer != null)

            simTimer.cancel();          

            

        simulationStarted = false;              

        

        theCoordinator.setScriptStatus(SCRIPT_STATUS.SCRIPT_PAUSED_STARTED);

    }

    

    public void resetSimulation() throws RemoteException {      

        

        if(simTimer != null)

            simTimer.cancel(); 

         

        currentSimTime = 0;              

        

        theCoordinator.setScriptStatus(SCRIPT_STATUS.SCRIPT_STOPPED_NOT_STARTED);

    }

    

}