question: private static void addHorizontalSmallSpring ( Path2D . Float path , int y0 , int x1 , int x2 ) { int springHeight = 2 ; int springWidth = 2 ; int distance = Math . abs ( x2 - x1 ) ; int numSprings = ( distance / ( springHeight ) ) ; int leftOver = ( distance - ( numSprings * springHeight ) ) / 2 ; path . lineTo ( x1 , y0 ) ; path . lineTo ( x1 - leftOver , y0 - leftOver ) ; int count = 0 ; if ( x1 > x2 ) { for ( int x = x1 - leftOver ; x > x2 + leftOver ; x -= springHeight ) { int y = ( count % 2 == 0 ) ? y0 - springWidth : y0 + springWidth ; path . lineTo ( x , y ) ; count ++ ; } } else { for ( int x = x1 + leftOver ; x < x2 - leftOver ; x += springHeight ) { int y = ( count % 2 == 0 ) ? y0 - springWidth : y0 + springWidth ; path . lineTo ( x , y ) ; count ++ ; } } path . lineTo ( x2 + leftOver , y0 ) ; path . lineTo ( x2 , y0 ) ; }
target:  Add an horizontal spring between (x1, y0) and (x2, y0) to the given path object