//// Action class ////////////////////////////////////////////////////////////

function Action(score, perline)	{
	this.points = parseInt(score);
	this.perline = !!perline;
}

Action.prototype.score = function(lines)	{
	if(!this.perline)
		return this.points;

	lines = lines || 1
	return this.points * lines;
}

////    CLASS RECORD    ///////////////////////////////////////////////////////
// represent one top scores record
function Record(nick, score, time)
{
	if(arguments.length == 1)	{
		var chunk = nick.split('/');
		var score = chunk[0];
		var nick = chunk[1];
		var time = chunk[2];
	}
	
	this.nick = nick.replace('/', '-').replace(';', ',');
	this.score = parseInt(score) || 0;
	
	this.time = parseInt(time) || Date.now();
}

Record.prototype.toString = function()	{
	return this.score + '/' + this.nick + '/' + this.time;
}

Record.factory = function(str)	{
	return str && new Record(str);
}

Record.compare = function(a, b)	{
	if(!(a instanceof Record && b instanceof Record)) return 0;
	if(a.score < b.score) return -1;
	if(a.score > b.score) return 1;
	return 0;
}

////    Score class    ////////////////////////////////////////////////////////

function Score()	{
	this.points = 0;
	this.scoring = Score.speedyScoring;
	this.onScore = function(score){} // callback
}

Score.prototype.score = function(speed, action, lines)	{
	var bonus;
	this.points += bonus = parseInt(this.scoring[action].score(lines) * this.scoring.escalation(speed));
	this.onScore(this.points, bonus);
	return bonus;
}

Score.classicScoring = {
	drop:	new Action(0),
	burn1:	new Action(100),
	burn2:	new Action(200),
	burn3:	new Action(500),
	burn4:	new Action(1500),
	lower:	new Action(0),
escalation: function(speed){return 1}
}

Score.speedyScoring = {
	drop:	new Action(7, true),
	burn1:	new Action(6),
	burn2:	new Action(15),
	burn3:	new Action(50),
	burn4:	new Action(200),
	lower:	new Action(1), // just placing a figure is now rewarded ;)
escalation: function(speed)   {return Math.pow(2, (parseFloat(speed-1)) / 2)}
}

/// class TopScores

function TopScores(current, cookie)	{
	this.current = new Record('Anonymvs', current);
	this.cookie = cookie;
	this.localPos = -1;
	this.__local = null;
}

TopScores.prototype.loadScores = function()	{
	var scores = Cookie.get(this.cookie);
	scores = scores && scores.split(';').map(Record.factory) || [];
	if(this.current.score && scores.push(this.current))scores = scores.sort(Record.compare).reverse().slice(0, 10);
	this.localPos = scores.indexOf(this.current);
	this.__local = scores;
}

TopScores.prototype.save = function()	{
	if(this.__local)
		Cookie.set(this.cookie, this.__local.join(';'));
}

TopScores.prototype.clear = function()	{
	Cookie.set(this.cookie, '');
	this.__local = null;
}

TopScores.prototype.__defineGetter__('local', function()	{
	if(!this.__local)
		this.loadScores();

	return this.__local;
});