math.randomseed(os.time())function growth(i,x,y,s,n)type=tpt.get_property("type",x+math.random(-1,1),y+math.random(-1,1))if type==tpt.el.watr.id thentpt.parts[i].type=tpt.el.plnt.idendendtpt.element_func(growth,tpt.el.wood.id)