puzzlestate

function PuzzleState(tiles) {

    this.tiles = tiles;


    this.toString = function() {

        var zeroLoc = this.getLocation(0);
        tiles[zeroLoc.row][zeroLoc.column] = " ";

    var top = "+---+---+---+\n";
        var topRow = "| " + tiles[0][0] + " | " + tiles[0][1] + " | " + tiles[0][2] + " |\n";
        var topMid = "+---+---+---+\n";
        var midRow = "| " + tiles[1][0] + " | " + tiles[1][1] + " | " + tiles[1][2] + " |\n";
        var botMid = "+---+---+---+\n";
        var botRow = "| " + tiles[2][0] + " | " + tiles[2][1] + " | " + tiles[2][2] + " |\n";
        var bot = "+---+---+---+\n";

        tiles[zeroLoc.row][zeroLoc.column] = 0;
        return top + topRow + topMid + midRow + botMid + botRow + bot;
    };

    this.equals = function(other) {

        if(other === null) return false;

        if (this.toString() === other.toString()) return true;
        else return false;
    };

    // Other properties and methods here

    //Gets location of tileNum assuming array is 3x3
    this.getLocation = function(tileNum){
        for (var r = 0; r < 3; r++) {
            for (var c = 0; c < 3; c++) {
                if(tiles[r][c] === tileNum){
                    return {row: r, column: c};
                }
            }
        }
        return null;
    };

    this.makeCanvas = function() {
    return this.makeDefaultCanvas(this);
    };

}

PuzzleState.prototype = STATE_PROTO;

// Helper functions here