State.js

(function(Ω) {

	"use strict";

	var State = function (state) {

		this.state = state;
		this.last = "";
		this.count = -1;
		this.locked = false; // Um, why is this feature necessary?

	};

	State.prototype = {

		set: function (state, resetIfSame) {
			if (this.locked || (state === this.state && !resetIfSame)) {
				return;
			}

			this.last = this.state;
			this.state = state;
			this.count = -1;

		},

		get: function () { return this.state; },

		tick: function () { this.count++; },

		first: function () { return this.count === 0; },

		is: function (state) { return state === this.state; },

		isNot: function (state) { return !this.is(state); },

		isIn: function () {

			var state = this.state,
				args = Array.prototype.slice.call(arguments);

			return args.some(function (s) {

				return s === state;

			});

		},

		isNotIn: function () {

			return !(this.isIn.apply(this, arguments));

		}

	};

	Ω.utils = Ω.utils || {};
	Ω.utils.State = State;

}(window.Ω));