David E. Goldschmidt, Ph.D.

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DUE: Thursday 7/16

Please email your C++ source file(s) to me before 11:59pm on the due date.

1. Write a C++ program to allow users to play a word-search game. Begin by copying and pasting the following code:

   // Homework #1
   //
   // Name: your-name-here
   // Date: today's-date-here
   
   #include <iostream>
   #include <string>
   using namespace std;
   
   int main()
   {
     // 9x9 word search puzzle
     string puzzle = "sfsueslccuelselihwllatnduahpepagourtsrfonutaluioliblcfliifrletopcintegercoutstnri";
   
     // word list: character cin cout cplusplus double else
     //            float for if integer string while
     //            (there might be other words in the puzzle!)
   
     // display the puzzle as a 9x9 grid
     cout << "Here's the puzzle:\n\n";
   
     // WRITE YOUR DISPLAY-PUZZLE CODE HERE
   
   
   
   
   
     // display instructions to the user
     cout << "Words are hidden in the forward, backward, up, and down directions.\n";
     cout << "See how many words you can find!\n\n";
   
     string word;
     cout << "Enter word (or \"show-puzzle\" to show the puzzle): ";
   
     while ( cin >> word )
     {
       // WRITE YOUR CODE HERE
   
   
   
   
   
   
     }
   
     return 0;
   }
   

2. As you can see, the puzzle is a "flattened-out" string. Your first task is to write a nested for loop to show the puzzle as a 9x9 grid.
3. If the user enters "show-puzzle," show the puzzle again.
4. Next, your task is to search the puzzle for the search word entered by the user. To do so, break the problem down into four separate searches: forward, backward, up, and down. You probably want to use a nested loop to search. Be sure to tell the user whether the word is found or not (and in which direction it is found). Test this code carefully!
5. Here's sample output showing the expected format (including sample user input in bold):

   Here's the puzzle:
   
   sfsueslcc
   uelselihw
   llatnduah
   pepagourt
   srfonutal
   uioliblcf
   liifrleto
   pcinteger
   coutstnri
   
   Words are hidden in the forward, backward, up, and down directions.
   See how many words you can find!
   
   Enter word (or "show-puzzle" to show the puzzle): integer
   Looking for "integer"
   FOUND IT IN THE FORWARD DIRECTION!
   
   Enter word (or "show-puzzle" to show the puzzle): character
   Looking for "character"
   FOUND IT IN THE DOWN DIRECTION!
   
   Enter word (or "show-puzzle" to show the puzzle): show-puzzle
   Here's the puzzle again:
   
   sfsueslcc
   uelselihw
   llatnduah
   pepagourt
   srfonutal
   uioliblcf
   liifrleto
   pcinteger
   coutstnri
   
   Enter word (or "show-puzzle" to show the puzzle): while
   Looking for "while"
   FOUND IT IN THE BACKWARD DIRECTION!
   
   Enter word (or "show-puzzle" to show the puzzle): loops
   Looking for "loops"
   NOT FOUND!
   
   ...
   

6. EXTRA CREDIT: Keep track of how many unique words the user finds. Also keep track of how many incorrect words the user guesses. Show these totals to the user before each guess.
7. EXTRA CREDIT: Add the ability to search for words in the diagonal directions. Use the following search words to test your code: "sea"; "bee"; "rule"; and "ease" (also try other words not in the puzzle).

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DUE: Thursday 7/30

Please email your C++ source file(s) to me before 11:59pm on the due date.

Write an interactive hangman game in C++ with the rules and specifications described below. Follow the instructions carefully and test your code thoroughly.

1. Your hangman program begins by reading a file called word-list.txt. This input file contains individual words for your hangman game.
2. Write a function called read_file() that reads all words from the file and stores them in an array of strings. Your function should return the number of words read. Display this value to the user in main():

   Welcome to HANGMAN!
   (successfully read in 26 words....)
   

3. Further, convert all letters of each word to lowercase. You may assume that no more than 100 puzzles will be in the input file.
4. Start the game by randomly selecting a puzzle from the array. Show the puzzle by creating a new string variable in which each letter is replaced with an underscore character, leaving all other characters (e.g. punctuation) unchanged, as in:

   
   Here's the puzzle:  _ _ _ _ ' _
   
   

5. Allow users to repeatedly guess letters. Write a decision-making function called puzzle_contains_letter() that determines whether the given letter is in the puzzle.
6. In main(), if the puzzle_contains_letter() function returns true, fill in all occurrences and show the puzzle again. Otherwise, the player is that much closer to being hanged! To replace all occurrences, write a function called replace_all().
7. Here's an example of how your program should operate (with sample user input shown in bold):

   
   Here's the puzzle:  _ _ _ _ ' _
   
   Guess a letter: t
   Good guess!
   
   Here's the puzzle:  _ _ _ _ ' t
   guessed letters: t
   
   Guess a letter: k
   Sorry, no 'k'
   
   Here's the puzzle:  _ _ _ _ ' t
   guessed letters: k t
   
   Guess a letter: d
   Good guess!
   
   Here's the puzzle:  d _ d _ ' t
   guessed letters: d k t
   
   ...
   
   

8. Use an array of 26 bool elements to keep track of the individual letters that have been guessed. Initially, this array should contain 26 false values. As shown above, display the guessed letters (regardless of whether they're in the puzzle or not) in alphabetical order. To do so, write a function called display_guessed_letters().
9. When a user guesses six incorrect letters, the player is hanged and the game is over! Implement this logic.
10. If a player guesses all the correct letters without being hanged, the player wins. Implement this logic.
11. Extra credit: display each piece of the hangman below as players guess incorrect letters.

        -------
        |     |
        |     O         H
        |   --|--         E
        |     |             L
        |    / \              P
        |                       !
       =|===========
      / |           \
     /               \
     =================