var Nums = {};//Namespace for function working with numbers
Nums.SaveFloatPoint = function(){
	this.errVal = 0;
}
Nums.SaveFloatPoint.prototype.add = function(value){
	var err = (Math.abs(value) - Math.floor(Math.abs(value))) * value.signOf();
	var val = Math.floor(Math.abs(value)) * value.signOf();
	this.errVal += err;
	if(Math.abs(this.errVal) >= 1){
		val += value.signOf();
		this.errVal -= value.signOf();
	}
	return val;
}
Nums.SaveFloatPoint.prototype.refresh = function(){
	this.errVal = 0;
}
Nums.Slide = function(from, to, step_num){
	var value = 0;
	var arr = [from + value];
	var len = to - from;
	var step = len / step_num;
	var saveFloat = new this.SaveFloatPoint();
	while(Math.abs(value) < Math.abs(len)){
		value += saveFloat.add(step);
		arr.push(from + value);
	}
	if(arr.length > step_num + 1){
		arr.pop();
		arr[arr.length - 1] = to;
	}
	return arr;
}
Nums.__hex_nums = ["0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "E", "F"];
Nums.Hex2Dec = function(hex){
	var num = 0;
	var splitted = hex.split('').invert();
	splitted.each(function(n, index){
		num += this.__hex_nums.indexOf(n) * (16).power(index);
	}.bind(this));
	return Number(num);
}
Nums.Dec2Hex = function(dec){

}
Nums.toString = function(){
	var str = " object Nums: "
	for(var i in this){
		if(i != "toString"){
			str += "\n";
			str += typeof this[i] + " " + i + "  :: ";
		}
	}
	return str;
}
Nums.Positive = function(val){
	this.val = 0;
	this.onzero = new DOMEvent();
	this.add(val);
}
Nums.Positive.prototype.add = function(val){
	this.val = Nums.Positive._check(this.val + val);
	if(this.val <= 0){
		this.onzero.fire();
	}
	return this.val;
}
Nums.Positive.prototype.toString = function(){
	return this.val;
}
Nums.Positive._check = function(val){
	if(!val){
		return 0;
	}
	return val >= 0 ? val : 0;
}