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Picking a Word to

Jumble

My next task is to pick a word to jumble—the word the player will try to guess. First, I create a list of words and hints:

int main()

{

enum fields {WORD, HINT, NUM_FIELDS}; const int NUM_WORDS = 5;

const string WORDS[NUM_WORDS][NUM_FIELDS] =

{

{"wall", "Do you feel you’re banging your head against something?"},

{"glasses", "These might help you see the answer."},

{"labored", "Going slowly, is it?"},

{"persistent", "Keep at it."},

{"jumble", "It’s what the game is all about."}

};

108 Chapter 3 n For Loops, Strings, and Arrays: Word Jumble

I declare and initialize a two-dimensional array with words and corresponding hints. The enumeration defines enumerators for accessing the array. For example, WORDS[x][WORD] is always a string object that is one of the words, while WORDS[x][HINT] is the corresponding hint.

Tric k

You can list a final enumerator in an enumeration as a convenient way to store the number of elements. Here’s an example:

enum difficulty {EASY, MEDIUM, HARD, NUM_DIFF_LEVELS};

cout << "There are " << NUM_DIFF_LEVELS << " difficulty levels.";‌

In the previous code, NUM_DIFF_LEVELS is 3, the exact number of difficulty levels in the enumeration. As a result, the second line of code displays the message, "There are 3 difficulty levels."

Next, I pick a random word from my choices.

srand(static_cast<unsigned int>(time(0))); int choice = (rand() % NUM_WORDS);

string theWord = WORDS[choice][WORD]; // word to guess string theHint = WORDS[choice][HINT]; // hint for word

I generate a random index based on the number of words in the array. Then I assign both the random word at that index and it’s corresponding hint to the variables theWord and theHint.

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