#!/usr/bin/python3 # The 6.00 Word Game import random import string VOWELS = 'aeiou' CONSONANTS = 'bcdfghjklmnpqrstvwxyz' HAND_SIZE = 7 SCRABBLE_LETTER_VALUES = { 'a': 1, 'b': 3, 'c': 3, 'd': 2, 'e': 1, 'f': 4, 'g': 2, 'h': 4, 'i': 1, 'j': 8, 'k': 5, 'l': 1, 'm': 3, 'n': 1, 'o': 1, 'p': 3, 'q': 10, 'r': 1, 's': 1, 't': 1, 'u': 1, 'v': 4, 'w': 4, 'x': 8, 'y': 4, 'z': 10 } # ----------------------------------- # Helper code # (you don't need to understand this helper code) WORDLIST_FILENAME = "words.txt" def loadWords(): """ Returns a list of valid words. Words are strings of lowercase letters. Depending on the size of the word list, this function may take a while to finish. """ print("Loading word list from file...") # inFile: file inFile = open(WORDLIST_FILENAME, 'r') # wordList: list of strings wordList = [] for line in inFile: wordList.append(line.strip().lower()) print(" ", len(wordList), "words loaded.") return wordList def getFrequencyDict(sequence): """ Returns a dictionary where the keys are elements of the sequence and the values are integer counts, for the number of times that an element is repeated in the sequence. sequence: string or list return: dictionary """ # freqs: dictionary (element_type -> int) freq = {} for x in sequence: freq[x] = freq.get(x,0) + 1 return freq # (end of helper code) # ----------------------------------- # # Problem #1: Scoring a word # def getWordScore(word, n): """ Returns the score for a word. Assumes the word is a valid word. The score for a word is the sum of the points for letters in the word, multiplied by the length of the word, PLUS 50 points if all n letters are used on the first turn. Letters are scored as in Scrabble; A is worth 1, B is worth 3, C is worth 3, D is worth 2, E is worth 1, and so on (see SCRABBLE_LETTER_VALUES) word: string (lowercase letters) n: integer (HAND_SIZE; i.e., hand size required for additional points) returns: int >= 0 """ score = 0 if len(word) == 0: return 0 for i in word: assert i in SCRABBLE_LETTER_VALUES, "Score for letter not defined" score += SCRABBLE_LETTER_VALUES[i] score *= len(word) # Extra points if all letters were used if len(word) == n: score += 50 return score # # Problem #2: Make sure you understand how this function works and what it does! # def displayHand(hand): """ Displays the letters currently in the hand. For example: >>> displayHand({'a':1, 'x':2, 'l':3, 'e':1}) Should print out something like: a x x l l l e The order of the letters is unimportant. hand: dictionary (string -> int) """ for letter in hand.keys(): for j in range(hand[letter]): print(letter,end=" ") # print all on the same line print() # print an empty line # # Problem #2: Make sure you understand how this function works and what it does! # def dealHand(n): """ Returns a random hand containing n lowercase letters. At least n/3 the letters in the hand should be VOWELS. Hands are represented as dictionaries. The keys are letters and the values are the number of times the particular letter is repeated in that hand. n: int >= 0 returns: dictionary (string -> int) """ hand={} numVowels = n // 3 for i in range(numVowels): x = VOWELS[random.randrange(0,len(VOWELS))] hand[x] = hand.get(x, 0) + 1 for i in range(numVowels, n): x = CONSONANTS[random.randrange(0,len(CONSONANTS))] hand[x] = hand.get(x, 0) + 1 return hand # # Problem #2: Update a hand by removing letters # def updateHand(hand, word): """ Assumes that 'hand' has all the letters in word. In other words, this assumes that however many times a letter appears in 'word', 'hand' has at least as many of that letter in it. Updates the hand: uses up the letters in the given word and returns the new hand, without those letters in it. Has no side effects: does not modify hand. word: string hand: dictionary (string -> int) returns: dictionary (string -> int) """ # We don't want to mutate the original hand, so, make a copy new_hand = hand.copy() for i in word: new_hand[i] -= 1 return new_hand # # Problem #3: Test word validity # def isValidWord(word, hand, wordList): """ Returns True if word is in the wordList and is entirely composed of letters in the hand. Otherwise, returns False. Does not mutate hand or wordList. word: string hand: dictionary (string -> int) wordList: list of lowercase strings """ new_hand = hand.copy() for i in word: if i not in new_hand.keys(): return False elif new_hand[i] == 0: return False else: new_hand[i] -= 1 if word not in wordList: return False return True # TO DO ... <-- Remove this comment when you code this function # # Problem #4: Playing a hand # def calculateHandlen(hand): """ Returns the length (number of letters) in the current hand. hand: dictionary (string-> int) returns: integer """ count = 0 for i in hand.keys(): count += hand[i] return count def playHand(hand, wordList, n): """ Allows the user to play the given hand, as follows: * The hand is displayed. * The user may input a word or a single period (the string ".") to indicate they're done playing * Invalid words are rejected, and a message is displayed asking the user to choose another word until they enter a valid word or "." * When a valid word is entered, it uses up letters from the hand. * After every valid word: the score for that word is displayed, the remaining letters in the hand are displayed, and the user is asked to input another word. * The sum of the word scores is displayed when the hand finishes. * The hand finishes when there are no more unused letters or the user inputs a "." hand: dictionary (string -> int) wordList: list of lowercase strings n: integer (HAND_SIZE; i.e., hand size required for additional points) """ total_score = 0 game_over = False while calculateHandlen(hand): word_score = 0 displayHand(hand) word = input("Enter word, or a \".\" to indicate that you are finished: ") if word == ".": print("Goodbye! Total score: " + str(total_score)) game_over = True break if not isValidWord(word, hand, wordList): print("Invalid word!!! Try again!") print() continue word_score += getWordScore(word, n) hand = updateHand(hand, word) total_score += word_score print(word + " earned " + str(word_score) + " points. " \ "Total: " + str(total_score) + " points") print() if not game_over: print("Run out of letters. Total score: " + str(total_score) + " points.") # # Problem #5: 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 'n', let the user play a new (random) hand. * If the user inputs 'r', let the user play the last hand again. * If the user inputs 'e', exit the game. * If the user inputs anything else, tell them their input was invalid. 2) When done playing the hand, repeat from step 1 """ hand = {} n = HAND_SIZE while True: opt = input("Enter n to deal a new hand, r to replay the last hand, "\ "or e to end game: ") if opt == 'n': hand = dealHand(n) playHand(hand, wordList, n) elif opt == 'r': if len(hand) == 0: print("You hav not played a hand yet. " \ "Please play a new hand first!") #continue else: playHand(hand, wordList, n) elif opt == 'e': break else: print("Invalid command.") #continue # # Build data structures used for entire session and play game # if __name__ == '__main__': wordList = loadWords() playGame(wordList)