Spiral NP

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var spiral = (function () {

    var sp = {};

    sp.draw = function() {
        console.log('hi dcat');
        //place matrix single click in the grid
        var self = this;
        this.post = [];
        var delay = 400;
        for(var a = 0; a < this.list.length; a++) {
            setTimeout(
                (function(a) {
                    return function() {
                        if($('.col_' + self.list[a].y + '_' + self.list[a].x).style.backgroundColor) {
                            self.post.push({"x": self.list[a].x, "y": self.list[a].y}); 
                            $('.col_' + self.list[a].y + '_' + self.list[a].x).click();}
                        $('.col_' + self.list[a].y + '_' + self.list[a].x).click();
                        console.log("coordinates: " + self.list[a].x + " , " + self.list[a].y);
                    }
                })(a), delay);
            delay += 400;
        }
    };

    sp.finish = function () {
        //run separately to fill spaces of array
        var delay=400;
        var self = this;
        for(var a = this.post.length-1; a >= 0; a--) {
            setTimeout(
                (function(a) {
                    return function() {
                        $('.col_' + self.post[a].y + '_' + self.post[a].x).click();
                        console.log("coordinates: " + self.post[a].x + " , " + self.post[a].y);
                    }
                })(a), delay);
            delay += 400;
        }
    };

    sp.init = function(ix,iy,len) {
        this.ix = ix; this.iy = iy; this.len = len;
        var lastx = this.ix; var lasty = this.iy;
        var multx = 1; var multy = 0;
        var counter = 0;
        var add = 0;
        this.list = [];
        //matrix calculation of spiral
        for (var k = len; k > 0; k--) {
            for (var i = 0; i < k; i++) {
                lastx = lastx+multx;
                lasty = lasty+multy;
                this.list.push({"x": lastx,"y": lasty});
                add++;
            }
            if((counter+4)%4 == 0) {multx=0; multy=1;}
            if((counter+4)%4 == 1) {multx=-1; multy=0;}
            if((counter+4)%4 == 2) {multx=0; multy=-1;}
            if((counter+4)%4 == 3) {multx=1; multy=0;}
            counter++;
        }
        this.draw();
    };

    return sp;

})();

//usage
//spiral.init(x,y,size);
//spiral.finish();