The 6.00 Word Game

# Python
# The 6.00 Word Game
# Problem Set 4A

 
from ps4a import *
import time



# Problem #6: Computer chooses a word

def compChooseWord(hand, wordList, n):
    """
    Given a hand and a wordList, find the word that gives
    the maximum value score, and return it.

    This word should be calculated by considering all the words
    in the wordList.

    If no words in the wordList can be made from the hand, return None.

    hand: dictionary (string -> int)
    wordList: list (string)
    n: integer (HAND_SIZE; i.e., hand size required for additional points)

    returns: string or None
    """
  
    score = {}
    try:
            for word in wordList:
                if isValidWord(word, hand, wordList):
                    score[word] = score.get(word, 0) + getWordScore(word, n)
            return max(score, key = score.get)
    except:
        return None

#
# Problem #7: Computer plays a hand
#
def compPlayHand(hand, wordList, n):
    """
    Allows the computer to play the given hand, following the same procedure
    as playHand, except instead of the user choosing a word, the computer
    chooses it.

    1) The hand is displayed.
    2) The computer chooses a word.
    3) After every valid word: the word and the score for that word is
    displayed, the remaining letters in the hand are displayed, and the
    computer chooses another word.
    4)  The sum of the word scores is displayed when the hand finishes.
    5)  The hand finishes when the computer has exhausted its possible
    choices (i.e. compChooseWord returns None).

    hand: dictionary (string -> int)
    wordList: list (string)
    n: integer (HAND_SIZE; i.e., hand size required for additional points)
    """
    total = 0
    handNew = hand.copy()
    while True:
        print 'Current Hand:',
        displayHand(handNew)
        compWord = compChooseWord(handNew, wordList, n)
        if compWord != None:
            total += getWordScore(compWord, n)
            print '"'+ str(compWord) + '"', 'earned', getWordScore(compWord, n), 'points.', 'Total:', total, 'points'
            handNew = updateHand(handNew, compWord)
            if calculateHandlen(handNew) == 0:
                print 'Total score:', total, 'points.'
                break
        else:
            print 'Total score:', total, 'points.'
            break
   
#
# Problem #8: Playing a game
#
#
def playGame(wordList):
    """
    Allow the user to play an arbitrary number of hands.

    1) Asks the user to input 'n' or 'r' or 'e'.
        * If the user inputs 'e', immediately exit the game.
        * If the user inputs anything that's not 'n', 'r', or 'e', keep asking them again.

    2) Asks the user to input a 'u' or a 'c'.
        * If the user inputs anything that's not 'c' or 'u', keep asking them again.

    3) Switch functionality based on the above choices:
        * If the user inputted 'n', play a new (random) hand.
        * Else, if the user inputted 'r', play the last hand again.
     
        * If the user inputted 'u', let the user play the game
          with the selected hand, using playHand.
        * If the user inputted 'c', let the computer play the
          game with the selected hand, using compPlayHand.

    4) After the computer or user has played the hand, repeat from step 1

    wordList: list (string)
    """
    while True:
        user = raw_input('Enter n to deal a new hand, r to replay the last hand, or e to end game: ')
        if user == 'n':
            while True:
                user_n = raw_input('Enter u to have yourself play, c to have the computer play: ')
                n = HAND_SIZE
                hand = dealHand(n)
                if user_n == 'u':
                    playHand(hand, wordList, n)
                    break
                elif user_n == 'c':
                    compPlayHand(hand, wordList, n)
                    break
                else:
                    print 'Invalid command.'
        elif user == 'r':
                while True:
                    try:
                        len(hand) > 0
                        user_r = raw_input('Enter u to have yourself play, c to have the computer play: ')
                        if user_r == 'u':
                            playHand(hand, wordList, n)
                            break
                        elif user_r == 'c':
                            compPlayHand(hand, wordList, n)
                            break
                        else:
                            print 'Invalid command.'
                    except:
                        print 'You have not played a hand yet. Please play a new hand first!'
                        break
        elif user == 'e':
            break
        else:
            print 'Invalid command.'
       
#
# Build data structures used for entire session and play game
#
if __name__ == '__main__':
    wordList = loadWords()
    playGame(wordList)