add slow plant growth in non-tilled soil

ground_cover.lua

@@ -41,7 +41,7 @@ minetest.register_abm{
 
 -- white/yellow
 
-minetest.register_node("dfcaverns:cobble_floor_fungus", {
+minetest.register_node("dfcaverns:cobble_with_floor_fungus", {
 	description = S("Cobblestone With Floor Fungus"),
 	tiles = {"default_cobble.png^dfcaverns_floor_fungus.png", "default_cobble.png", "default_cobble.png^dfcaverns_floor_fungus_side.png"},
 	drops = "default:cobble",
@@ -54,12 +54,12 @@ minetest.register_node("dfcaverns:cobble_floor_fungus", {
 minetest.register_abm{
 	label = "dfcaverns:floor_fungus_spread",
 	nodenames = {"default:cobble"},
-	neighbors = {"dfcaverns:cobble_floor_fungus"},
+	neighbors = {"dfcaverns:cobble_with_floor_fungus"},
 	interval = 30,
 	chance = 10,
 	catch_up = true,
 	action = function(pos)
-		minetest.swap_node(pos, {name="dfcaverns:cobble_floor_fungus"})
+		minetest.swap_node(pos, {name="dfcaverns:cobble_with_floor_fungus"})
 	end,
 }
 

plants.lua

@@ -79,22 +79,45 @@ dfcaverns.register_seed = function(name, description, image, stage_one)
 	})
 end
 
+local grow_underground_plant = function(pos, node)
+	local node_def = minetest.registered_nodes[node.name]
+	local next_stage = node_def._dfcaverns_next_stage
+	if next_stage then
+		local next_def = minetest.registered_nodes[next_stage]
+		minetest.swap_node(pos, {name=next_stage, param2 = next_def.place_param2 or node.param2})
+	end
+end
+
 dfcaverns.register_grow_abm = function(names, interval, chance)
 	minetest.register_abm({
 		nodenames = names,
 		interval = interval,
 		chance = chance,
+		catch_up = true,
+		neighbors = {"farming:soil_wet"},
 		action = function(pos, node)
 			pos.y = pos.y-1
 			if minetest.get_node(pos).name ~= "farming:soil_wet" then
 				return
 			end
-			local node_def = minetest.registered_nodes[node.name]
-			local next_stage = node_def._dfcaverns_next_stage
-			if next_stage then
-				local next_def = minetest.registered_nodes[next_stage]
+			pos.y = pos.y+1
+			grow_underground_plant(pos, node)
+		end
+	})
+	
+	minetest.register_abm({
+		nodenames = names,
+		interval = interval * 10,
+		chance = chance,
+		catch_up = true,
+		neighbors = {"default:dirt", "dfcaverns:dirt_with_cave_moss", "dfcaverns:cobble_with_floor_fungus"},
+		action = function(pos, node)
+			pos.y = pos.y-1
+			if minetest.get_node(pos).name == "default:dirt" or
+				minetest.get_node(pos).name == "dfcaverns:dirt_with_cave_moss" or
+				minetest.get_node(pos).name == "dfcaverns:cobble_with_floor_fungus" then
 				pos.y = pos.y+1
-				minetest.swap_node(pos, {name=next_stage, param2 = next_def.place_param2 or node.param2})
+				grow_underground_plant(pos, node)
 			end
 		end
 	})

sounds/license.txt

@@ -0,0 +1,3 @@
+https://freesound.org/people/DrMinky/sounds/167073/
+https://freesound.org/people/HonorHunter/sounds/271666/
+https://freesound.org/people/DrMinky/sounds/167074/