Objectives
To apply knowledge of the Comparable interface to a problem
To understand and override the toString and equals methods
Instructions
For this assignment, you will create a GamePiece class, to be used in a variation of the classic “Rock, Paper, Scissors” game. This variation is called “Rock, Paper, Scissors, Lizard, Spock”. A description about how each piece fairs against others is later in this document.
The GamePiece class will contain the following fields:
classification
The classification of the game piece
Valid values are based on an enumerated type, Piece:
Rock
Paper
Scissors
Lizard
Spock
name
The String value of the name, corresponding to the enumerated type
“Rock”, “Paper”, “Scissors”, “Lizard”, or “Spock” are the valid values.
playerName
The name of the person playing (of type String)
Can be any name under 20 characters long
The class will contain the following methods:
GamePiece( )
Constructor – initializes the fields to their default values
Default classification is set to Rock
Default name is set to “Rock”
GamePiece (Piece classification, String name, String playerName)
Constructor – initialize the fields to the values passed in by the client
Getter and setter methods for each of the field names
toString( )
overridden from the Object class
This method should return a string containing a reference to the value in the following, depending on the internal Piece value:
Rock: “I’m hard and have sharp edges.”
Paper: “I’m made of trees and can cover a rock easily.. and disprove Spock!”
Scissors: “I’m extra sharp to cut right through paper… and lizards!”
Lizard: “Hsssss.”
Spock: “It is only logical that you do your CIS 2353 homework.”
equals( )
overridden from the Object class
A GamePiece is “equal” to another GamePiece if their classifications match
compareTo(GamePiece otherPiece)
implemented from the interface Comparable
Specifically, Comparable<GamePiece should be used for the interface o The method returns the following:
-1 is the current game piece object’s classification is less than otherPiece’s classification
0 if the game pieces have the same classification
1 if the current game piece object’s classification is greater than otherPiece’s classification
Winning/Losing
Piece A
Piece B
Phrase to denote winner
Who wins?
Rock
Paper
Paper covers rock
Paper
Rock
Scissors
Rock crushes scissors
Rock
Rock
Lizard
Rock crushes lizard
Rock
Rock
Spock
Spock vaporizes rock
Spock
Paper
Scissors
Scissors cuts paper
Scissors
Paper
Lizard
Lizard eats paper
Lizard
Paper
Spock
Paper disproves Spock
Paper
Scissors
Lizard
Scissors decapitates lizard
Scissors
Scissors
Spock
Spock smashes scissors
Spock
Spock Lizard Lizard poisons Spock Lizard
Obviously, if the two pieces are the same, it’s a tie!
Deliverables
Turn in a zipped up folder, containing the Java file(s) required for this project. This includes all relevant classes that are created, as well as the client used to test the class(es) – i.e., the class containing the main method. Upload them to D2L under Dropbox, to the appropriate assignment directory.
