thisishow.js

function(t) {
    var i,
        n,
        s = this.brush.img.width * this.scale,
        e = this.brush.img.height * this.scale,
        h = {
            x: this.pointer.x,
            y: this.pointer.y
        };
    this.pointPosition(t);
    for (var o = {
            x: this.pointer.x,
            y: this.pointer.y
        }, a = this.pointDistance(h, o), r = this.pointAngle(h, o), c = 0; c <= a || 0 === c; c++)
        i = h.x + Math.sin(r) * c - s / 2, n = h.y + Math.cos(r) * c - e / 2, this.context.drawImage(this.brush.img, i, n, s, e)
},