import java.util.*;

// VamlorRMIImpl - Class which implements the functionality of the 
// abstract Vamlor RMI class
public class VamlorRMIImpl extends java.rmi.server.UnicastRemoteObject
							implements VamlorRMI {

    public VamlorRMIImpl() throws java.rmi.RemoteException {
        super();
    }

	// getIDList - Method that returns the IDs of all alive Vamlors
	public int [] getIDList() throws java.rmi.RemoteException {
		DumbBrain brain;	// This is the parent class of a Vamlor
		// The Doit class is the main server class. It holds all data 
		// concerning the Vamlor World. The vTable is a hashtable of the
		// existing Vamlors
		int [] list = new int[Doit.vTable.size()];
		int i = 0;
		
		// Cycle through all entries in the hashtable and add them to the list
		
		for (Enumeration e = Doit.vTable.elements() ; e.hasMoreElements() ;) {
			brain = (DumbBrain)e.nextElement();
			// The DumbBrain class class returns a Vamlor ID which in turn
			// returns an integer value
			list[i] = brain.getID().id.intValue();
			i++;
		}
		
		return (list);
	}
	
	// getState - Method returning state of Vamlor
	public String getState(int id) throws java.rmi.RemoteException {
		
		// This method gets the parent class DumbBrain given a Vamlor id
        DumbBrain dumb = Doit.getBrainFromVamlor(new Vamlor(id));
        if (dumb == null)
            return null;
        else {
			if (dumb.isSleeping()) {
				return ("Sleeping");
			}
			else if (dumb.getMotion() == DumbBrain.SPEED_RUN) {
				return ("Running");
			} else if (dumb.getMotion() == DumbBrain.SPEED_WALK) {
				return ("Walking");
			} else {
				return ("Stopped");
			}
		}
	}
	
	// getName - Given ID return Vamlor Name
	public String getName(int id) throws java.rmi.RemoteException {
		// This method gets the parent class DumbBrain given a Vamlor id
        DumbBrain dumb = Doit.getBrainFromVamlor(new Vamlor(id));
        if (dumb == null)
            return null;
        else {
            return(dumb.getVamlorName());
        }
	}
	
	// getX - Given ID return X location
    public int getX(int id) throws java.rmi.RemoteException {
		// This method gets the parent class DumbBrain given a Vamlor id
        DumbBrain dumb = Doit.getBrainFromVamlor(new Vamlor(id));
        if (dumb == null)
            return 0;
        else {
            return(dumb.getPositionX());
        }
    }

	// getY - Given ID return Y location
    public int getY(int id) throws java.rmi.RemoteException {
		// This method gets the parent class DumbBrain given a Vamlor id
        DumbBrain dumb = Doit.getBrainFromVamlor(new Vamlor(id));
        if (dumb == null)
            return 0;
        else {
            return(dumb.getPositionY());
        }
    }

	// getEnergyLevel - Given ID return Energy Level
    public int getEnergyLevel(int id) throws java.rmi.RemoteException {
		// This method gets the parent class DumbBrain given a Vamlor id
        DumbBrain dumb = Doit.getBrainFromVamlor(new Vamlor(id));
        if (dumb == null)
            return 0;
        else {
            return(dumb.getEnergy());
        }
    }

	// getHealthLevel - Given ID return Health Level
    public int getHealthLevel(int id) throws java.rmi.RemoteException {
		// This method gets the parent class DumbBrain given a Vamlor id
        DumbBrain dumb = Doit.getBrainFromVamlor(new Vamlor(id));
        if (dumb == null)
            return 0;
        else {
            return(dumb.getHealth());
        }
    }
}