Can you give a link where I can download this? I only see the demo clicking on the link above.
However i ve done it for you; http://gigatron3k.free.fr/html5/C2/FX/floodfill.rar
3 parameters here are : mode =0 nothing happen, 1,2,3,4,5,6 various flood direction;
duration is how many second the fx will work , like speed;
vbl_wait is how many seconds the fx wait after restart usefull to stop fx during this time with setting mode to 0