Adventure

Announcements

• Personal Project is due on Monday night next week!
  • Try not to ask for extension becuase the next week project is a bit extensive
• Project 5 Adventure guidelines will be posted this weekend
  • Due on Monday 29th of April (i.e., 2 weeks +)
  • You Can work with a partner on this project. Both partners will earn the same grade.
• Polling: https://www.polleverywhere.com/agbofred203

Review Question

Three of the below expressions are valid; one is not. Which one would return an error?

Teaching the Adventure

• The TeachingMachine program can process and run any data file that has the correct format
  • Does not need to technically be a series of educational questions
  • This is part of the strength of the data driven model: data is easy to change, programs less so
• Could make a sort of “Choose your own adventure” game out of it!

Life among Wizards

• The history of the early internet has been told in several books. One relates the following story:

A small circle of friends at BBN had gotten hooked on Dungeons and Dragons, an elaborate fantasy role-playing game in which one player invents a setting and populates it with monsters and puzzles, and the other players then make their way through that setting. The game exists only in the minds of the players.

Dave Walden got his introduction to the game one night when Eric Roberts, a student from a class he was teaching at Harvard, took him to a D&D session. Walden immediately rounded up a group of friends from the ARPANET team for continued sessions. Roberts created the Mirkwood Tales.

One of the regulars was Will Crowther.

The Team

Willie Crowther’s Adventure Game

A Brief History of Adventure

• Eric Roberts begins the Mirkwood Tales in early 1975
• Will Crowther creates Adventure later that year
• Will moves to Xerox/PARC in 1976
• Stanford graduate student Don Woods released an expanded version of Adventure in early 1977
• Dave Lebling and others from MIT release the first version of Zork in 1977
  • Game later becomes the foundation of the computer game company Infocom
• Adventure is ported to wide variety of platforms by 1980
• Eric Roberts creates an expanded version in 1984 and uses it as the basis for his first Adventure Project/Contest at Wellesley

Adventure Classes

Milestone 1

• Adapt the code from the Teaching Machine application so that it uses the class and method names for Adventure
• Once you finish this milestone, you should be able to wander around a bit in the game

The SmallRooms.txt Data File

OutsideBuilding
Outside building
You are standing at the end of a road before a small brick
building.  A small stream flows out of the building and
down a gully to the south.  A road runs up a small hill
to the west.
-----
WEST: EndOfRoad
UP: EndOfRoad
NORTH: InsideBuilding
IN: InsideBuilding
SOUTH: Valley
DOWN: Valley

EndOfRoad
End of road
You are at the end of a road at the top of a small hill.
You can see a small building in the valley to the east.
-----
EAST: OutsideBuilding
DOWN: OutsideBuilding

Milestone 2

• Implement set_visited and has_been_visited to keep track of which rooms have been visited.
• Check this flag in the code that describes a room to know which description to show

Milestone 3

• Implement the QUIT, HELP, and LOOK commands
• Adds extra commands that let the player do more than just move

Milestone 4

• Implement the AdvObject class
• Implement the methods in the AdvRoom class that make it possible to keep track of the objects in a room
• In the AdvGame class, write the code to put each object in its initial room (ignoring the "PLAYER" room for now)
• Change the code for displaying a room so that it displays a list of the objects in the room as well

The SmallObjects data file

KEYS
a set of keys
InsideBuilding

LAMP
a brightly shining brass lamp
BeneathGrate

ROD
a black rod with a rusty star
DebrisRoom

WATER
a bottle of water
PLAYER

Milestone 5

• Implement the TAKE, DROP, and INVENTORY commands and any code you need to remember what the player is carrying

Milestone 6

• Implement synonym processing so that the player can use abbreviated forms of the directions and alternative names for the objects

The SmallSynonyms.txt data file

N=NORTH
S=SOUTH
E=EAST
W=WEST
U=UP
D=DOWN
Q=QUIT
L=LOOK
I=INVENTORY
CATCH=TAKE
RELEASE=DROP
BOTTLE=WATER

Milestone 7

• Implement locked passages, which are passages that require a particular object to use
• Making this change requires moving get_next_room from AdvRoom to AdvGame so that it can see the objects

The SmallRooms.txt data file

OutsideGrate
Outside grate
You are in a 20-foot depression floored with bare dirt.
Set into the dirt is a strong steel grate mounted in
concrete.  A dry streambed leads into the depression from
the north.
-----
NORTH: SlitInRock
UP: SlitInRock
DOWN: BeneathGrate/KEYS
DOWN: MissingKeys

MissingKeys
-
The grate is locked and you don't have any keys.
-----
FORCED: OutsideGrate

Milestone 8

• Implement forced motion, in which the player is forced to immediately move from a room to a new room without issuing a command
  • Indicated by the verb FORCED
• Implementation of forced motion needs to allow some forced passages to still be locked

Review Question

Q1
What is the square root of 36?
    A) 0
    B) 6
    C) 10
-----
A: Q2
B: Q3
C: Q1

Q2
Are you happy?
    A) Yes
    B) No
    C) What kind of question is this?
-----
B: Q1
*: Q3

Q3
What is your age?
    A) Young
    B) Prime of my life
    C) Old
-----
A: Q1
*: Q2