add fallback node for when [game] doesn't have dirt alias defined

api.lua

@@ -11,16 +11,23 @@ local use_mc2 = minetest.get_modpath("mcl_core")
 -- Visual Harm 1ndicator check
 local use_vh1 = minetest.get_modpath("visual_harm_1ndicators")
 
+-- Node check helper
+local function has(nodename)
+	if nodename and minetest.registered_nodes[nodename] then
+		return nodename
+	end
+end
+
 -- Global
 mobs = {
 	mod = "redo",
-	version = "20240620",
+	version = "20240629",
 	translate = S,
 	invis = minetest.global_exists("invisibility") and invisibility or {},
-	node_snow = minetest.registered_aliases["mapgen_snow"]
-			or (use_mc2 and "mcl_core:snow") or "default:snow",
-	node_dirt = minetest.registered_aliases["mapgen_dirt"]
-			or (use_mc2 and "mcl_core:dirt") or "default:dirt"
+	node_snow = has(minetest.registered_aliases["mapgen_snow"])
+		or has("mcl_core:snow") or has("default:snow") or "air",
+	node_dirt = has(minetest.registered_aliases["mapgen_dirt"])
+		or has("mcl_core:dirt") or has("default:dirt") or "mobs:fallback_node"
 }
 mobs.fallback_node = mobs.node_dirt
 

init.lua

@@ -7,6 +7,14 @@ minetest.register_privilege("peaceful_player", {
 	give_to_singleplayer = false
 })
 
+-- Fallback node
+minetest.register_node("mobs:fallback_node", {
+	description = "Fallback Node",
+	tiles = {"mobs_fallback.png"},
+	is_ground_content = false,
+	groups = {handy = 1, crumbly = 3},
+	drop = ""
+})
 
 -- Mob API
 dofile(path .. "/api.lua")

license.txt

@@ -23,6 +23,8 @@ THE SOFTWARE.
 
 Textures under CC0 license by TenPlus1
 
+mobs_fallback.png is dirt texture from original Minetest (CC-BY SA 3.0)
+
 
 ShadowNinja (CC BY-SA 3.0):
   tnt_smoke.png

readme.MD

@@ -33,6 +33,7 @@ https://forum.minetest.net/viewtopic.php?f=11&t=9917
 * Added support for Visual Harm 1ndicators mod to show health bars
 * Added self.node_damage flag which is true by default to enable damage_per_second node damage
 * Added check for on_death() function before using mob api's own on_die() one
+* Added mobs:fallback_node for when current [game] hasn't defined mapgen_dirt node
 
 ### Version 1.60