// Name:
// Lab Section:
// Primary TA:
// Email:
// Date:
// CS101 Lab 7
// Room.java

import java.awt.Color;
import cs101.canvas.*;

public class Room {

   private Rect room, nHall, eHall, sHall, wHall;
   private int  row, col;
   private RoomSet in;
   private Room north, south, east, west;
   private CS101Canvas canvas;
   private int pixs;

   public Room(int row, int col, int pixs, CS101Canvas canvas) {
      this.row   = row;
      this.col   = col;
      this.canvas = canvas;
      this.pixs   = pixs;

      init();

   }

   private Rect install(Rect r, int x, int y, int width, int height, Color c) {
      if (r != null) canvas.remove(r);
      r = new Rect(x, y, width, height, c);
      canvas.add(r);
      return(r);
   }

   public void dropEmptyHalls() {
      if (north == null) nHall.setColor(Color.white);
      if (south == null) sHall.setColor(Color.white);
      if (east  == null) eHall.setColor(Color.white);
      if (west  == null) wHall.setColor(Color.white);
   }

   public void init() {
      int x = pixs*col*2;
      int y = pixs*row*2;

      nHall = install(nHall, x+pixs/3, y-pixs/2, pixs/3, pixs/2, Color.red);
      eHall = install(eHall, x+pixs, y+pixs/3, pixs/2, pixs/3, Color.orange);
      sHall = install(sHall, x+pixs/3, y+pixs, pixs/3, pixs/2, Color.yellow);
      wHall = install(wHall, x-pixs/2, y+pixs/3, pixs/2, pixs/3, Color.green);
      room  = install(room, x, y, pixs, pixs, Color.black);

      this.north = null;
      this.south = null;
      this.east  = null;
      this.west  = null;
      nowMemberOf(new RoomSet(this));
   }

   public void nowMemberOf(RoomSet set) {
      this.in = set;
      room.setColor(set.getColor());
      nHall.setColor(set.getColor());
      wHall.setColor(set.getColor());
      eHall.setColor(set.getColor());
      sHall.setColor(set.getColor());
      room.setFilled(true);
   }

   public String toString() {
      return ("Room (" + row + "," + col +  ")");
   }

   public RoomSet getSet() { return in; }

   public Room getNorth() { return north; }
   public Room getSouth() { return south; }
   public Room getEast () { return east ; }
   public Room getWest () { return west ; }

   public Rect getNHall() { return nHall; }
   public Rect getSHall() { return sHall; }
   public Rect getEHall() { return eHall; }
   public Rect getWHall() { return wHall; }
   public Rect getRoom()  { return room;  }

   public void connectNorth(Room r) {  north = r; nHall.setFilled(true); }
   public void connectSouth(Room r) {  south = r; sHall.setFilled(true); }
   public void connectEast (Room r) {  east  = r; eHall.setFilled(true); }
   public void connectWest (Room r) {  west  = r; wHall.setFilled(true); }

}