use table.copy instead of clone-node

biome_defs.lua

@@ -125,10 +125,7 @@ moretrees.willow_biome = {
 }
 
 moretrees.rubber_tree_biome = {
-	surface = {
+	surface = "default:dirt_with_grass",
-		"default:dirt_with_grass",
-		"default:sand",
-	},
 	avoid_nodes = moretrees.avoidnodes,
 	avoid_radius = 10,
 	seed_diff = 338,

init.lua

@@ -36,17 +36,6 @@ else
 end
 moretrees.intllib = S
 
--- clone node
-
-function moretrees.clone_node(name)
-	local node2 = {}
-	local node = minetest.registered_nodes[name]
-	for k,v in pairs(node) do
-		node2[k]=v
-	end
-	return node2
-end
-
 -- infinite stacks checking
 
 if minetest.get_modpath("unified_inventory") or not

node_defs.lua

@@ -360,8 +360,6 @@ end
 -- we need our own copy of that node, which moretrees will match against.
 
 local jungle_tree = table.copy(minetest.registered_nodes["default:jungletree"])
-jungle_tree.drop = jungle_tree.drop or { items = {} }
-table.insert(jungle_tree.drop.items, { items = {"default:jungletree"}})
 minetest.register_node("moretrees:jungletree_trunk", jungle_tree)
 
 default.register_leafdecay({
@@ -406,7 +404,7 @@ default.register_leafdecay({
 
 
 if moretrees.enable_redefine_apple then
-	local appledef = moretrees.clone_node("default:apple")
+	local appledef = table.copy(minetest.registered_nodes["default:apple"])
 	appledef.groups.attached_node = 1
 	minetest.register_node(":default:apple", appledef)
 end