This will let it forever
function fireRocks ()
local rock = createObject ( 3930, -2815.18, 470.16, 4.86, 0, 354.488, 0 )
local weapon = createWeapon ("Molotov", -2815.18, 470.16, 4.86 )
local fire = createFire ( -2815.18, 470.16, 4.86, 2)
attachElements ( rock, weapon, 0, 0, 2 )
setTimer ( createFire, 99999999, 0,fire)
end
addCommandHandler ( "fire", fireRocks )