1 files changed, 11 insertions, 0 deletions
diff --git a/init.lua b/init.lua
index 9d17019..28919bc 100644
--- a/init.lua
+++ b/init.lua
@@ -213,6 +213,17 @@ local function f_leafdecay(itemstring, def)
 	return formstring
 end
 
+--[[ Node defines skeleton key and key callbacks which probably implies that
+it can be unlocked by keys ]]
+local function f_key(itemstring, def)
+	if def.on_key_use and def.on_skeleton_key_use then
+		return S("This block is compatible with keys.")
+	else
+		return ""
+	end
+end
+
+doc.sub.items.register_factoid("nodes", "use", f_key)
 doc.sub.items.register_factoid("nodes", "groups", f_fire)
 doc.sub.items.register_factoid("nodes", "groups", f_flora)
 doc.sub.items.register_factoid("nodes", "groups", f_leafdecay)