game simulator

var Game = (function() {
    var settings = {
        // payout which is a multiple.
        payout: 2,
        // probability of getting a payout represented fraction.
        probability: .50,
    };

    var init = function(options) {
        for (var key in options) {
            if (options.hasOwnProperty(key)) {
                settings[key] = options[key]
            }
        }
        return this;
    };

    var round = function(bet) {
        // Returns the winnings from a bet placed of amount `bet`.
        if (Math.random() <= settings.probability) {
            return bet * settings.payout;
        };
        return 0;
    };

    var log_settings = function() {
        console.log('probability', settings.probability);
        console.log('payout', settings.payout);
    };

    return {
        init: init,
        round: round,
        log_settings: log_settings,
    }
})();


var game = Game.init()
console.log(game.round(50))

var game = Game.init({payout: 10, probability: 0.1})
game.log_settings()
console.log(game.round(5))