commonjs & require

/* main.js */
 
var _TimerModule = require('./timer');
var _TextModule = require('./text');
var TimerModule = new _TimerModule(); /* Need Allocate Object */
var TextModule = new _TextModule();
 
/* Test Code */
var _testModule1 = function () {
    return new Promise(function (resolve, reject) {
        TimerModule.setTimer(0, 1000);
        resolve();
    });
};
var _testModule2 = function () {
    return new Promise(function (resolve, reject) {
        TextModule.setText("사랑해요... 지성군!", TimerModule);
        resolve();
    });
};
var _testModule3 = function () {
    var lastTick;
    var Update = function () {
        var currentTick = new Date().getTime();
        var elapseTick = currentTick - (lastTick || currentTick);
 
        console.log(TextModule.readText(elapseTick));
 
        lastTick = currentTick;
    }
    return new Promise(function (resolve, reject) {
        setInterval(Update, 100);
        resolve();
    });
};
 
Promise.all([_testModule1(), _testModule2(), _testModule3()]).then(function () {
    console.log("All Completed");
});

/* timer.js */
 
(function () {
    "use strict"
    
    function TimerModule() {
        this.timer = {
            time: 0,
            get: function () {
                return this.time;
            },
            set: function (_time) {
                this.time = _time;
            },
            tick: function (_tick) {
                this.time += _tick;
            }
        };
        this.startTimer = 0;
        this.endTimer = 1000;
    }
    TimerModule.prototype.setTimer = function (_startTime, _endTime) {
        this.timer.set(_startTime);
        this.startTimer = _startTime;
        this.endTimer = _endTime;
    };
    TimerModule.prototype.isTick = function () {
        return (this.timer.get() > this.endTimer);
    };
    TimerModule.prototype.addTick = function (_tick) {
        this.timer.tick(_tick);
    };
    TimerModule.prototype.resetTick = function (_endTime) {
        this.timer.set(this.startTimer);
        this.endTimer = _endTime;
    };
    module.exports = TimerModule;
})()

/* text.js */
 
(function () {
    "use strict"
 
    function TextModule() {
        this.text = "";
        this.currentIndex = 1;  // Notifycation <text.js:24>
        this.timerModule;
        this.TypingText = function () {
            if (this.timerModule.isTick()) {
                switch (this.text[this.currentIndex++]) {
                    case '.':
                        this.timerModule.resetTick(500); // millisecond
                        break;
                    case ' ':
                    case '?':
                    case '!':
                        this.timerModule.resetTick(800);
                        break;
                    default:
                        this.timerModule.resetTick(1000);
                        break;
                }
            }
            /* Warning Grammer < && ( interger(0) is false ) || > */
            return this.text.substring(
                0,
                (this.currentIndex <= this.text.length && this.currentIndex || this.text.length) - 1);
        }
    }
    TextModule.prototype.setText = function (_text, _timerModule) {
        /* Warning */
        if (typeof (_text) != "string" || typeof (_timerModule) != "object") {
            console.log("TypeError: string & TimerModule <text.js:31>");
            return;
        }
        this.text = _text;
        this.timerModule = _timerModule;
    };
    TextModule.prototype.readText = function (_elapseTick) {
        this.timerModule.addTick(_elapseTick);
        return this.TypingText();
    };
    module.exports = TextModule;
})()