threads.js

//part of joke.js
// Represents "thread" of  concrete object or group of objects
Thread = function () {
};

Thread.prototype = {
    "threadPriority": {
        'HIGHEST': 10,
        'HIGH': 50,
        'MEDIUM': 200,
        'SLOW': 2000,
        'SLOWEST': 2000,
        'ALMOST_DEAD': 10000,
        'CUSTOM': 100
    },
    "threadPriopiry": 0,
    // Priority of thread, or simply timer Interval
    "counter": 0,
    // When object ticks "counter" times, then ticking become terminated
    "terminated": true,
    // determines whether loop is executed or not
    "suspended": false,
    "ticker": null,
    // ticking timer
    "tick": function (self, param) { // ticking action
        param = self.onTick(self, param);
        if (self.counter > 0) {
            self.counter--;
            this.ticker = setTimeout(self.tick, self.threadPriority.CUSTOM, self, param);
        } else {
            self.counter = 0;
            self.terminate();

            self.onEndTicking();
        }
    },
    "start": function (tickParam) {
        this.terminated = false;
        if (this.ticker)
            return false;
        this.counter = 4;
        var self = this;
        this.ticker = setTimeout(this.tick, this.threadPriority.CUSTOM, self, tickParam);
    },
    "terminate": function () {
        if (this.onTerminated) {
            this.onTerminated();
        }
        this.terminated = true;
        clearTimeout(this.ticker);
        this.ticker = null;
    },
    // Just example, you should implement this method by himself
    "onTick": function (sender, param, scene) {
        return param;
    },
    "onTerminated": function () {
    }
};