disable node hearing by default

api.lua

@@ -18,7 +18,7 @@ end
 
 mobs = {
 	mod = "redo",
-	version = "20241002",
+	version = "20241010",
 	spawning_mobs = {},
 	translate = S,
 	invis = minetest.global_exists("invisibility") and invisibility or {},
@@ -4737,6 +4737,7 @@ minetest.register_chatcommand("clear_mobs", {
 
 if settings:get_bool("mobs_can_hear") ~= false then
 
+	local node_hear = settings:get_bool("mobs_can_hear_node")
 	local old_sound_play = minetest.sound_play
 
 	minetest.sound_play = function(spec, param, eph)
@@ -4798,22 +4799,25 @@ if settings:get_bool("mobs_can_hear") ~= false then
 		end
 
 		-- find nodes that can hear up to 8 blocks away
-		local dist = min(def.max_hear_distance, 8)
-		local ps = minetest.find_nodes_in_area(
-				vector.subtract(def.pos, dist),
-				vector.add(def.pos, dist), {"group:on_sound"})
+		if node_hear then
 
-		if #ps > 0 then
+			local dist = min(def.max_hear_distance, 8)
+			local ps = minetest.find_nodes_in_area(
+					vector.subtract(def.pos, dist),
+					vector.add(def.pos, dist), {"group:on_sound"})
 
-			for n = 1, #ps do
+			if #ps > 0 then
 
-				local ndef = minetest.registered_nodes[minetest.get_node(ps[n]).name]
+				for n = 1, #ps do
 
-				def.distance = get_distance(def.pos, ps[n])
-				def.loudness = def.gain - (bit * def.distance)
+					local ndef = minetest.registered_nodes[minetest.get_node(ps[n]).name]
 
-				if def.loudness > 0 and ndef and ndef.on_sound then
-					ndef.on_sound(ps[n], def)
+					def.distance = get_distance(def.pos, ps[n])
+					def.loudness = def.gain - (bit * def.distance)
+
+					if def.loudness > 0 and ndef and ndef.on_sound then
+						ndef.on_sound(ps[n], def)
+					end
 				end
 			end
 		end

api.txt

@@ -857,6 +857,10 @@ External Settings for "minetest.conf"
    'mob_pathfinding_searchdistance'     max search distance from search positions (default 16)
    'mob_pathfinding_max_jump'   max jump height for pathfinding (default 4)
    'mob_pathfinding_max_drop'   max drop height for pathfinding (default 6)
+   'mobs_can_hear'          Enabled by default, overrides minetest.sound_play and enables
+                            nearby mobs to run a custom on_sound function.
+   'mobs_can_hear_node'     Disabled by default, allows nearby nodes to hear and run a
+                            custom on_sound function.
 
 Players can override the spawn chance for each mob registered by adding a line
 to their minetest.conf file with a new value, the lower the value the more each

settingtypes.txt

@@ -63,6 +63,9 @@ mob_log_spawn (Log Mob Spawning) bool false
 #   Mob hearing, when enabled will override minetest.sound_play for mobs to hear
 mobs_can_hear (Enable Mob hearing) bool true
 
+#   Node hearing, when enabled will allow nodes to hear nearby sounds
+mobs_can_hear_node (Enable Node hearing) bool false
+
 [Pathfinding]
 #    Enable pathfinding (default Enabled)
 mob_pathfinding_enable (Enable pathfinding) bool true