You may work on this programming project in pairs, if you wish. If you work with someone else, be sure that both of you understand the work that gets done. As before, it is also okay to get help from your friends, the TAs, and/or the instructor if you get stuck, but you should try to do it on your own first. Keep in mind that the goal is not just getting the program to work but learning how to write programs yourself; outside help will not be available to you during the exams. Also remember that you may not work with the same person on more than two of the programming projects for this course.

For this project you will implement a simulation of a simple, imaginary building. The building will contain at least four different rooms. You should place at least three people in the building; one will be controlled by the user, and the others will be controlled by the computer. You should also place some objects in the rooms.

A person can move from the room that he or she is in to any room with a connecting doorway. Your building should not have all of its rooms directly connected, but it should be possible to eventually reach any room from any other. For example, you might have a building with the following floor plan:

+-------------+------+-------+
|             |      |       |
|   Kitchen   |      |       |
|             |      |       |
+-----   -----+ Hall | Study |
|             |      |       |
| Dining Room                |
|             |      |       |
+-------------+------+-------+

A person should also be able to pick up objects that are in the room with him/her and to set down objects that he/she is carrying. However, a person should be able to carry at most two things at once.

Your program should offer the user a menu of commands (in a manner similar to the SodaMachine program). The commands should include at least the following:

• Look around - give the user a description of the room he/she is in, including its name, where its doors are, and any people and objects in the room. (You may also want to print this description automatically whenever the user moves to a new room.)
• Inventory - list the objects the user is currently carrying.
• Pick up - allow the user to pick up an object (selected from a menu of objects in the room).
• Set down - allow the user to set down an object (selected from a menu of objects in his/her possession).
• Move - allow the user to move in some direction (selected from a menu of directions where there are doors).
• Quit - terminate the simulation program.

Your program should alternate through the people in the simulated building. When it is the user's turn, the user selects a command from the menu. When it is another (simulated) person's turn, the computer should make a random choice to have that person pick something up, set something down, or move.

An interaction with your program might look something like this:

Select a command from the following menu:

 	L - Look around
	I - Take inventory
	P - Pick up an object
	S - Set down an object
	M - Move
	C - Show menu of commands
	Q - Quit

> l

You are in the Dining Room.
There are doors in the following directions:
	north
	east
The room contains the following objects:
	candlestick

> i

You are carrying the following objects:
	programming project

> m

Which direction do you want to move?

	1 - north
	2 - east

> 2

You are in the Hall.
There are doors in the following directions:
	east
	west
The following people are also in the room:
	Professor Plum
The room contains the following objects:
	key

> s

Which object do you want to set down?

	1 - programming project

> 1

> m

Which direction do you want to move?

	1 - east
	2 - west

> 1

You are in the Study.
There are doors in the following directions:
	west
The room contains the following objects:
	book
	rope

>

There is a lot of flexibility and room for creativity in this assignment, so have fun with it!

Optional features:

Here are a couple of extra things that you might try if you have time:

• If a computer-controlled person does something that affects the contents of the room that the user-controlled person occupies, print a message to the screen to inform the user of the change. (This would include someone moving into the room, moving out of the room, picking something up in the room, or setting something down in the room.)

  Professor Plum sets down a lead pipe.
  
  > s
  
  Which object do you want to set down?
  
  	1 - programming project
  
  > 1
  
  Professor Plum picks up a programming project.
  
  > i
  
  You are not carrying anything.
  
  Professor Plum leaves the Hall.
  
  >
  

• List directions relative to the direction in which the user is facing (ahead, behind, right, left) rather than using absolute compass directions (north, south, east, west). Notice that if a user turns to the left or right to go through a door, the direction he or she is facing changes.

  You are in the Dining Room.
  There are doors in the following directions:
  	ahead
  	right
  The room contains the following objects:
  	candlestick
  
  > m
  
  Which direction do you want to move?
  
  	1 - ahead
  	2 - right
  
  > 2
  
  You are in the Hall.
  There are doors in the following directions:
  	ahead
  	behind
  The following people are also in the room:
  	Professor Plum
  The room contains the following objects:
  	key
  

• Give one of your doorways a special property. For example, it might be locked and so require that a person carry a key in order to move through it. Or it might be narrow and so not allow a person to carry large objects through it.

  > m
  
  Which direction do you want to move?
  
  	1 - east
  	2 - west
  
  > 1
  
  The door is locked.  You cannot move through it unless you have a key.
  
  > p
  
  What do you want to pick up?
  
  	1 - key
  	2 - lead pipe
  
  > 1
  
  > m
  
  Which direction do you want to move?
  
  	1 - east
  	2 - west
  
  > 1
  
  You are in the Study.
  There are doors in the following directions:
  	west
  The room contains the following objects:
  	book
  	rope
  
  >
  

What to turn in:

The project design is due at the beginning of lab on Thursday of eighth week. You should hand in:

• a floor plan of your building, a list of the people and objects that will be in the building, and any refinement or embellishment of the problem description you wish to make.
• a detailed description of the classes you will need, including
  • a list of data members and what each represents;
  • a list of member functions and what each does.
  (This should be similar to the detailed description of the Display and Timer classes I handed out in class during the first week.)

The implementation is due at the beginning of class on Friday of tenth week. You should hand in:

• any modifications to the design;
• a printed copy of your code; also send e-mail to me (mcdowell@kzoo.edu) and include your code as an attachment;
• a printed version of a sample interaction with your program;