CS 341 - Principles of Programming Languages Homework #12

Due: at the beginning of class 25

Note: This work is to be done in pairs.  Work will be reviewed during class 25.  Although you may divide the work, both team members should be able to present/describe their partner's work upon request. 

Create an object-oriented Python implementation of Pig according to this specification with a Keep Pace and End Race computer player rather than a Hold at 20 computer player.  Since Python allows multiple inheritance, one would use an abstract base class (ABC) instead of an interface.

Keep Pace and End Race policy:  Let i be the player's score, j be the opponent's score, and k be the current turn total.  If i >= 71 or j >= 71, roll for the goal.  Otherwise, hold at 21 + round((j - i) / 8). Call your computer player class KPERPigPlayer.

Common pitfalls:

• Be sure to note that the Die class is overkill for the needs of the game, but forces a person to consider how one would work multiple constructors in Python.  There are a number of ways this could be accomplished.  A few are described in this Stack Overflow discussion.  Note the example uses of  (1) the default value None, (2) *args, **kwargs, and (3) factory methods.
• Don't forget to use the abstract base class (ABC) package "abc" to define the PigPlayer interface.