Move.js

function PiecePos(rank,file,piece){
	this.rank  = rank;
	this.file  = file;
	this.piece = piece;
}

PiecePos.prototype = {
	Add: function(pos1,pos2){
		this.rank = pos1.rank + pos2.rank;
		this.file = pos1.file + pos2.file;
	},
	
	
	Multiply: function(pos,num){
		this.rank = pos.rank * num;
		this.file = pos.file * num;
	}
	
}

function Move(from,to,piece,promotion,capture){
	this.from = from;
	this.to   = to;
	this.piece = piece;
	this.promotion = promotion;
	this.capture = capture;
}