Multi-modal interaction framework - Software Development Case Studies in Java - page 518

public class Runner extends DActivity
implements RunnerInterface {
private int path[];
// the set of lay-bys on the runner's track
private long delay; // one step's duration
private long maxDelay # 1000;
// one step's maximum duration
private int currentPosition # 0;
private int currentStep # 0;
public Runner(DProcess server, int path[])
throws java.rmi.RemoteException {
super (server);
this .path # path;
this .delay # maxDelay;
}
// every "delay" milliseconds the runner moves to the next
// cell
public void step() {
try {
Thread.sleep(delay);
((Server) process).next( this .getURL(),
path[currentStep]);
currentPosition # path[currentStep];
currentStep !! ;
if (currentStep ## path.length) currentStep # 0;
} catch (InterruptedException ie) { ie.printStackTrace(); }
}
// sets the duration of a transition between two cells
public void setSpeed( int percent)
throws java.rmi.RemoteException {
this .delay # maxDelay - 80 * percent;
}
// returns the ID of the cell currently occupied by the
// runner
public int getPosition() throws java.rmi.RemoteException {
return currentPosition;
}
}
package jogging.client;
import mmi.*;
import jogging.server.*;
public interface ClientInterface extends java.rmi.Remote {}
public class Client extends DProcess
implements ClientInterface {
public ServerInterface server;
// reference to the remote server