Make hidden fireflies floodable

mods/fireflies/init.lua

@@ -25,9 +25,6 @@ minetest.register_node("fireflies:firefly", {
 	},
 	light_source = 6,
 	floodable = true,
-	on_flood = function(pos, oldnode, newnode)
-		minetest.add_item(pos, "fireflies:firefly 1")
-	end,
 	on_place = function(itemstack, placer, pointed_thing)
 		local player_name = placer:get_player_name()
 		local pos = pointed_thing.above
@@ -62,6 +59,7 @@ minetest.register_node("fireflies:hidden_firefly", {
 	buildable_to = true,
 	drop = "",
 	groups = {not_in_creative_inventory = 1},
+	floodable = true,
 	on_place = function(itemstack, placer, pointed_thing)
 		local player_name = placer:get_player_name()
 		local pos = pointed_thing.above