Initial

2019-01-15 20:45:15 -05:00
parent d8d4059314
commit edf347a11b
7 changed files with 529 additions and 0 deletions
--- a/src/com/bayviewglen/zork/Room.java
+++ b/src/com/bayviewglen/zork/Room.java
@@ -0,0 +1,144 @@
+
+package com.bayviewglen.zork;
+
+/*
+ * Class Room - a room in an adventure game.
+ *
+ * Author:  Michael Kolling
+ * Version: 1.1
+ * Date:    August 2000
+ * 
+ * This class is part of Zork. Zork is a simple, text based adventure game.
+ *
+ * "Room" represents one location in the scenery of the game.  It is 
+ * connected to at most four other rooms via exits.  The exits are labelled
+ * north, east, south, west.  For each direction, the room stores a reference
+ * to the neighbouring room, or null if there is no exit in that direction.
+ */
+import java.util.Set;
+import java.util.HashMap;
+import java.util.Iterator;
+
+class Room {
+	private String roomName;
+	private String description;
+	private HashMap<String, Room> exits; // stores exits of this room.
+
+	/**
+	 * Create a room described "description". Initially, it has no exits.
+	 * "description" is something like "a kitchen" or "an open court yard".
+	 */
+	public Room(String description) {
+		this.description = description;
+		exits = new HashMap<String, Room>();
+	}
+
+	public Room() {
+		// default constructor.
+		roomName = "DEFAULT ROOM";
+		description = "DEFAULT DESCRIPTION";
+		exits = new HashMap<String, Room>();
+	}
+
+	public void setExit(char direction, Room r) throws Exception {
+		String dir = "";
+		switch (direction) {
+		case 'E':
+			dir = "east";
+			break;
+		case 'W':
+			dir = "west";
+			break;
+		case 'S':
+			dir = "south";
+			break;
+		case 'N':
+			dir = "north";
+			break;
+		case 'U':
+			dir = "up";
+			break;
+		case 'D':
+			dir = "down";
+			break;
+		default:
+			throw new Exception("Invalid Direction");
+
+		}
+
+		exits.put(dir, r);
+	}
+
+	/**
+	 * Define the exits of this room. Every direction either leads to another
+	 * room or is null (no exit there).
+	 */
+	public void setExits(Room north, Room east, Room south, Room west, Room up, Room down) {
+		if (north != null)
+			exits.put("north", north);
+		if (east != null)
+			exits.put("east", east);
+		if (south != null)
+			exits.put("south", south);
+		if (west != null)
+			exits.put("west", west);
+		if (up != null)
+			exits.put("up", up);
+		if (up != null)
+			exits.put("down", down);
+
+	}
+
+	/**
+	 * Return the description of the room (the one that was defined in the
+	 * constructor).
+	 */
+	public String shortDescription() {
+		return "Room: " + roomName + "\n\n" + description;
+	}
+
+	/**
+	 * Return a long description of this room, on the form: You are in the
+	 * kitchen. Exits: north west
+	 */
+	public String longDescription() {
+
+		return "Room: " + roomName + "\n\n" + description + "\n" + exitString();
+	}
+
+	/**
+	 * Return a string describing the room's exits, for example "Exits: north
+	 * west ".
+	 */
+	private String exitString() {
+		String returnString = "Exits:";
+		Set keys = exits.keySet();
+		for (Iterator iter = keys.iterator(); iter.hasNext();)
+			returnString += " " + iter.next();
+		return returnString;
+	}
+
+	/**
+	 * Return the room that is reached if we go from this room in direction
+	 * "direction". If there is no room in that direction, return null.
+	 */
+	public Room nextRoom(String direction) {
+		return (Room) exits.get(direction);
+	}
+
+	public String getRoomName() {
+		return roomName;
+	}
+
+	public void setRoomName(String roomName) {
+		this.roomName = roomName;
+	}
+
+	public String getDescription() {
+		return description;
+	}
+
+	public void setDescription(String description) {
+		this.description = description;
+	}
+}