Prevent decay of placed leaves

mods/default/functions.lua

@@ -681,16 +681,16 @@ minetest.register_abm({
 
 
 	action = function(p0, node, _, _)
-		--print("leafdecay ABM at "..p0.x..", "..p0.y..", "..p0.z..")")
+		minetest.log("verbose", "[default] leafdecay ABM at "..p0.x..", "..p0.y..", "..p0.z..")")
 		local do_preserve = false
 		local d = minetest.registered_nodes[node.name].groups.leafdecay
 		if not d or d == 0 then
-			--print("not groups.leafdecay")
+			minetest.log("verbose", "[default] not groups.leafdecay")
 			return
 		end
 		local n0 = minetest.get_node(p0)
 		if n0.param2 ~= 0 then
-			--print("param2 ~= 0")
+			-- Prevent decay
 			return
 		end
 		local p0_hash = nil
@@ -702,10 +702,10 @@ minetest.register_abm({
 				local reg = minetest.registered_nodes[n.name]
 				-- Assume ignore is a trunk, to make the thing work at the border of the active area
 				if n.name == "ignore" or (reg and reg.groups.tree and reg.groups.tree ~= 0) then
-					--print("cached trunk still exists")
+					minetest.log("verbose", "[default] leafdecay: cached trunk still exists")
 					return
 				end
-				--print("cached trunk is invalid")
+				minetest.log("verbose", "[default] leafdecay: cached trunk is invalid")
 				-- Cache is invalid
 				table.remove(default.leafdecay_trunk_cache, p0_hash)
 			end
@@ -720,7 +720,7 @@ minetest.register_abm({
 		if p1 then
 			do_preserve = true
 			if default.leafdecay_enable_cache then
-				--print("caching trunk")
+				minetest.log("verbose", "[default] leafdecay: caching trunk")
 				-- Cache the trunk
 				default.leafdecay_trunk_cache[p0_hash] = p1
 			end

mods/default/nodes.lua

@@ -798,7 +798,8 @@ minetest.register_node("default:jungleleaves", {
 	tiles = {"default_jungleleaves.png"},
 	paramtype = "light",
 	waving = 1,
-	is_ground_content = false,
+	is_ground_content = true,
+	place_param2 = 1,
 	groups = {snappy=3, leafdecay=3, flammable=2, leaves=1},
 	drop = {
 		max_items = 1,
@@ -864,7 +865,8 @@ minetest.register_node("default:leaves", {
 	tiles = {"default_leaves.png"},
 	paramtype = "light",
 	waving = 1,
-	is_ground_content = false,
+	is_ground_content = true,
+	place_param2 = 1,
 	groups = {snappy=3, leafdecay=3, flammable=2, leaves=1},
 	drop = {
 		max_items = 1,

mods/farming_plus/birch.lua

@@ -27,6 +27,7 @@ minetest.register_node("farming_plus:leaves_birch", {
 	paramtype = "light",
 	waving = 1,
 	is_ground_content = false,
+	place_param2 = 1,
 	groups = {snappy=3, leafdecay=3, flammable=2, not_in_creative_inventory=1, leaves=1},
  	drop = {
 		max_items = 1,

mods/farming_plus/cjtree.lua

@@ -9,6 +9,7 @@ minetest.register_node("farming_plus:cj_leaves", {
 	paramtype = "light",
 	waving = 1,
 	is_ground_content = false,
+	place_param2 = 1,
 	groups = {snappy=3, leafdecay=3, flammable=2, not_in_creative_inventory=1, leaves=1},
  	drop = {
 		max_items = 1,

mods/farming_plus/olive.lua

@@ -27,6 +27,7 @@ minetest.register_node("farming_plus:olive_leaves", {
 	paramtype = "light",
 	waving = 1,
 	is_ground_content = false,
+	place_param2 = 1,
 	groups = {snappy=3, leafdecay=3, flammable=2, not_in_creative_inventory=1, leaves=1},
  	drop = {
 		max_items = 1,

mods/farming_plus/paletree.lua

@@ -27,6 +27,7 @@ minetest.register_node("farming_plus:pale_leaves", {
 	paramtype = "light",
 	waving = 1,
 	is_ground_content = false,
+	place_param2 = 1,
 	groups = {snappy=3, leafdecay=3, flammable=2, not_in_creative_inventory=1, leaves=1},
  	drop = {
 		max_items = 1,