sync upstream master of https://notabug.org/TenPlus1/mobs_redo into main

* add mtobjid mod to optional dependencies, stop mob count going below 0

api.lua

@@ -27,7 +27,7 @@ local use_cmi = minetest.global_exists("cmi")
 
 mobs = {
 	mod = "redo",
-	version = "20230527",
+	version = "20230606",
 	intllib = S,
 	invis = minetest.global_exists("invisibility") and invisibility or {}
 }
@@ -926,7 +926,7 @@ local function remove_mob(self, decrease)
 
 	self.object:remove()
 
-	if decrease and active_limit > 0 then
+	if decrease and active_limit > 1 then
 		active_mobs = active_mobs - 1
 
 		if active_mobs < 0 then

depends.txt

@@ -9,3 +9,4 @@ cmi?
 toolranks?
 pathfinder?
 player_api?
+mtobjid?

mod.conf

@@ -1,4 +1,4 @@
 name = mobs
 depends =default
-optional_depends = tnt, player_api, dye, farming, invisibility, intllib, lucky_block, cmi, toolranks, pathfinder
+optional_depends = tnt, player_api, dye, farming, invisibility, intllib, lucky_block, cmi, toolranks, pathfinder, mtobjid
 description = MOBS api for mobs to add animals or monsters etc