tracer says to #ysitd
k.math.Coordinate?(this.left+=a.x,this.right+=a.x,this.top+=a.y,this.bottom+=a.y):(k.asserts.assertNumber(a),this.left+=a,this.right+=a,k.isNumber(c)&&(this.top+=c,this.bottom+=c));return this};b.scale=function(a,c){var d=k.isNumber(c)?c:a;this.left*=a;this.right*=a;this.top*=d;this.bottom*=d;return this};k.math.Rect=function(a,c,d,e){this.left=a;this.top=c;this.width=d;this.height=e};k.math.Rect.prototype.clone=function(){return new