sorcery  Diff

		--
		--  UPDATE: in pratice this is way too expensive to be functional, and causes servers to hang. we're replacing it with a simpler version

		local treetype = force(pos).name
		if minetest.get_item_group(treetype, 'tree') == 0 then -- sir this is not a tree
			return nil -- 無
		end
		local treedef = sorcery.lib.tbl.select(sorcery.data.trees, 'node', treetype)


		local leaftype = treedef and treedef.leaves or nil
		if not leaftype then return false end

		local uppermost, lowermost
		local found_leaves = false

		local treemap, treenodes = amass(pos,function(node, where)

		--
		--  UPDATE: in pratice this is way too expensive to be functional, and causes servers to hang. we're replacing it with a simpler version

		local treetype = force(pos).name
		if minetest.get_item_group(treetype, 'tree') == 0 then -- sir this is not a tree
			return nil -- 無
		end
		local treedef = sorcery.lib.tbl.select(sorcery.data.trees, function(ent)
			return sorcery.lib.tbl.strmatch(ent.node, treetype)
		end)
		local leaftype = treedef and treedef.leaves or nil
		if not leaftype then return false end

		local uppermost, lowermost
		local found_leaves = false

		local treemap, treenodes = amass(pos,function(node, where)