Algodoo

if you want a water spawner it is something like

(e)=>{ e.other.liquify({ pos=e.pos })} make sure that the thing it hits is a cloned to avoid it getting liquified so it just adds a amount of water that would come if liquifieng it

cant remember other one because i normally don't spawn water but I can teach you almost anything else (but not polygon spawns haven't learned yet) use this link
http://www.algodoo.com/algobox/details.php?id=48915