Get Programming with JavaScript - Listings 13.07 and 13.08

Listings 13.07 and 13.08 - Using spacer and between in the guessing game

HTML:

<!-- number generator -->
<script src="http://output.jsbin.com/qezoce.js"></script>

<!-- spacer -->
<script src="http://output.jsbin.com/juneqo.js"></script>

JS:

var getGuesser = function (lowest, highest) {
    var secret = between(lowest, highest);

    return function (userNumber) {
        if (userNumber === secret) {
            return spacer.box("Well done!", 14, "=");
        } else if (userNumber > secret) {
            return spacer.box("Too high!", 13, "+");
        } else {
            return spacer.box("Too low!", 12, "-");
        }
    };
};

var guess = getGuesser(5, 10);

Further Adventures

Listings 13.07 and 13.08 - Using spacer and between in the guessing game - Task 1

Report the number of guesses taken at each stage.

var getGuesser = function (lowest, highest) {
    var secret = between(lowest, highest);
    var numGuesses = 0;

    return function (userNumber) {
        var msg;
        numGuesses += 1;

        if (userNumber === secret) {
            msg = "Well done! (" + numGuesses + " guesses)";
            return spacer.box(msg, msg.length + 4, "=");
        } else if (userNumber > secret) {
            msg = "Too high! (" + numGuesses + " guesses)";
            return spacer.box(msg, msg.length + 4, "+");
        } else {
            msg = "Too low! (" + numGuesses + " guesses)";
            return spacer.box(msg, msg.length + 4, "-");
        }
    };
};

var guess = getGuesser(5, 10);

Listings 13.07 and 13.08 - Using spacer and between in the guessing game - Task 2

End the game after a certain number of guesses.

var getGuesser = function (lowest, highest) {
    var secret = between(lowest, highest);
    var numGuesses = 0;
    var maxGuesses = 3;
    var inPlay = true;

    return function (userNumber) {
        var msg;
        if (inPlay) {
            numGuesses += 1;

            if (numGuesses === maxGuesses) {
                inPlay = false;
            }

            if (userNumber === secret) {
                msg = "Well done! (" + numGuesses + " guesses)";
                return spacer.box(msg, msg.length + 4, "=");
            } else if (userNumber > secret) {
                msg = "Too high! (" + numGuesses + " guesses)";
                return spacer.box(msg, msg.length + 4, "+");
            } else {
                msg = "Too low! (" + numGuesses + " guesses)";
                return spacer.box(msg, msg.length + 4, "-");
            }
        } else {
            return spacer.box("Out Of Guesses", 18, "!");
        }
    };
};

var guess = getGuesser(5, 10);