question: public void recycle ( boolean initial , int width , int height , int topMargin ) { if ( initial ) { y = randRange ( topMargin , height ) ; } else { y = height + ( randRange ( 0 , 21 ) - 10 ) ; } x = randRange ( 0 , width ) ; radius = 1 ; maxRadius = randRange ( 3 , BUBBLE_SIZE ) ; paint . setAlpha ( randRange ( 100 , 250 ) ) ; popped = false ; step = 0 ; amp = Math . random ( ) * 3 ; freq = Math . random ( ) * 2 ; skew = Math . random ( ) - 0.5 ; }
target:  Re-initialises the Bubble properties so that it appears to be a new bubble. Although a bit of elegance is sacrificed this seemed to result in a performance boost during initial testing.