import java.util.*;
/**
 * Class Room - a room in an adventure game.
 *
 * This class is part of the "World of Zuul" application. 
 * "World of Zuul" is a very simple, text based adventure game.  
 *
 * A "Room" represents one location in the scenery of the game.  It is 
 * connected to other rooms via exits.  The exits are labelled north, 
 * east, south, west.  For each direction, the room stores a reference
 * to the neighboring room, or null if there is no exit in that direction.
 * 
 * @author  Michael Kölling and David J. Barnes
 * @version 2016.02.29
 */
public class Room 
{
    public String description;
    private HashMap<String, Room> rooms = new HashMap<>();
    // public Room northExit;
    // public Room southExit;
    // public Room eastExit;
    // public Room westExit;
    
    private Food food;
    private Beat beat;

    /**
     * Create a room described "description". Initially, it has
     * no exits. "description" is something like "a kitchen" or
     * "an open court yard".
     * @param description The room's description.
     */
    public Room(String description) 
    {
        this.description = description;
    }
    
    public void setFood(Food food){
        this.food = food;
    }
    
    public void setBeat(Beat beat){
        this.beat = beat;
    }
    
    public Beat getBeat(){
        return beat;
    }
    
    
    public Food getFood(){
        return food;
    }
    
    public void removeFood(){
        this.food = null;
    }
    
    public void removeBeat(){
        this.beat = null;
    }
    
    public void checkFood(){
        if (food != null){
        System.out.print("你要吃"+this.food+"吗？输入“eat吃掉”");
        } 
        
    }
    
    public void checkBeat(){
        if (beat != null){
        System.out.print("这个岛上出现了危险物！");
        } 
        
    }
    
    /**
     * Define the exits of this room.  Every direction either leads
     * to another room or is null (no exit there).
     * @param north The north exit.
     * @param east The east east.
     * @param south The south exit.
     * @param west The west exit.
     */
    // public void setExits(Room north, Room east, Room south, Room west) 
    // {
        // if(north != null) {
            // northExit = north;
        // }
        // if(east != null) {
            // eastExit = east;
        // }
        // if(south != null) {
            // southExit = south;
        // }
        // if(west != null) {
            // westExit = west;
        // }
    // }

    public void setExit(String direction, Room room) {
        this.rooms.put(direction, room);
    }
    
    public void printExits() {
        System.out.println("\n");
        System.out.println("你可以选择的路线有: ");
        for (String str : rooms.keySet()) {
            System.out.print(str + " ");
        }
        System.out.println();
    }
    
    public Room goNext(String direction) {
        return this.rooms.get(direction);
    }
    /**
     * @return The description of the room.
     */
    public String getDescription()
    {
        return description;
    }

}