package mug12;

/**
 * A place in the world of Grinnell.  Places hold objects and
 * people and are also connected to other places.
 *
 * @author CSC152 2004F
 */
 
import java.util.Hashtable;
import java.util.Vector;

public class PlaceObject
	implements Place
{
	//Fields
	String name;
	String description;
	Vector adjacent; 
	Vector stuffInRoom;  
	Vector personsInRoom;
	Hashtable verbs;
	
	//constructors
	public PlaceObject(String _name, String _description, Vector _adjacent, Vector _stuffInRoom, Vector _personsInRoom, Hashtable _verbs)  
	{
		this.name = _name;
		this.description = _description;
		this.adjacent = _adjacent;
		this.stuffInRoom = _stuffInRoom;
		this.personsInRoom = _personsInRoom;
		this.verbs = _verbs;
	}//Place()
	
	/**
	 * Get the name of this thing.  Every thing is supposed to have a
	 * unique name.
	 */
	public String getName()
	{
		return this.name;
	}//getName()
	
	/**
	 * Get a description of the object, which can then be presented
	 * to the user.
	 */
	public String describe()
	{
		return this.description;
	}//describe()
	
	/**
	*finds the verbs that can be performed on said object
	*/
	public Hashtable verbs()
	{
		return this.verbs;
	}//verbs()
	
	/**
	*finds the stuff needed to run a verb
	*returns a -1 if the verb doesn't exist for this object
	*returns a 0 if the verb does exist but does not change anything
	*returns a 1 if the verb exists and changes things
	*/
	public Integer checkVerb(String verb)
	{
		if (this.verbs.get(verb).equals(null))
			return new Integer(-1);
		else
		{
			Integer returned = (Integer) this.verbs.get(verb);
			return returned;
		}
	}//checkVerb(String)
	
	/**
	 * Is this room available to person p?
	 */
	public boolean available(Person p)
	{
		return true; //special stuff for room with special access
	}//available(Person)
	
	/**
	 * Find out what people are in the place.
	 */
	public String[] persons()
	{
		String[] stuff = new String[this.personsInRoom.size()];
		this.personsInRoom.copyInto(stuff);
		return stuff;
	}//persons()
	
	/**
	 * Find out what things are in the place.
	 */
	public String[] things()
	{
		String[] stuff = new String[this.stuffInRoom.size()];
		this.stuffInRoom.copyInto(stuff);
		return stuff;
	}//things()
	
	/**
	 * Determine the neighboring places.
	 */
	public String[] neighbors()
	{
		String[] stuff = new String[this.adjacent.size()];
		this.adjacent.copyInto(stuff);
		return stuff;
	}//neighbors()
	
	public void addPerson(String name)
	{
		this.personsInRoom.add(name);
	}//addPerson(String)
	
	public void removePerson(String name)
	{
		this.personsInRoom.remove(name);
	}//removePerson(String)
	
	public void addThing(String name)
	{
		this.stuffInRoom.add(name);
	}//addThing(String)
	
	public void removeThing(String name)
	{
		this.stuffInRoom.remove(name);
	}//removeThing(String)
} // interface Place