diff --git a/api.lua b/api.lua
index c0f358b..09f7c8a 100644
--- a/api.lua
+++ b/api.lua
@@ -266,11 +266,9 @@ function mob_class:collision()
 	local prop = self.object:get_properties()
 	local width = -prop.collisionbox[1] + prop.collisionbox[4] + 0.5
 
-	for _,object in pairs(minetest.get_objects_inside_radius(pos, width)) do
-
-		if is_player(object) then
-
-			local pos2 = object:get_pos()
+	for _,player in pairs(minetest.get_connected_players()) do
+		local pos2 = player:get_pos()
+		if pos2:distance(pos) < width then
 			local vec  = {x = pos.x - pos2.x, z = pos.z - pos2.z}
 			local force = (width + 0.5) - vector.distance(
 				{x = pos.x, y = 0, z = pos.z},
@@ -2243,12 +2241,11 @@ function mob_class:do_states(dtime)
 
 			local lp
 			local s = self.object:get_pos()
-			local objs = minetest.get_objects_inside_radius(s, 3)
 
-			for n = 1, #objs do
-
-				if is_player(objs[n]) then
-					lp = objs[n]:get_pos()
+			for _,player in pairs(minetest.get_connected_players()) do
+				local player_pos = player:get_pos()
+				if player_pos:distance(s) <= 3 then
+					lp = player_pos
 					break
 				end
 			end
@@ -3334,14 +3331,9 @@ function mob_class:mob_expire(pos, dtime)
 		if self.lifetimer <= 0 then
 
 			-- only despawn away from player
-			local objs = minetest.get_objects_inside_radius(pos, 15)
-
-			for n = 1, #objs do
-
-				if is_player(objs[n]) then
-
+			for _,player in pairs(minetest.get_connected_players()) do
+				if player:get_pos():distance(pos) <= 15 then
 					self.lifetimer = 20
-
 					return
 				end
 			end
@@ -4064,11 +4056,8 @@ function mobs:spawn_specific(name, nodes, neighbors, min_light, max_light, inter
 		end
 
 		-- only spawn a set distance away from player
-		local objs = minetest.get_objects_inside_radius(pos, mob_nospawn_range)
-
-		for n = 1, #objs do
-
-			if is_player(objs[n]) then
+		for _,player in pairs(minetest.get_connected_players()) do
+			if player:get_pos():distance(pos) <= mob_nospawn_range then
 --print("--- player too close", name)
 				return
 			end
diff --git a/spawner.lua b/spawner.lua
index ddf6979..86fed39 100644
--- a/spawner.lua
+++ b/spawner.lua
@@ -153,21 +153,19 @@ minetest.register_abm({
 		-- spawn mob if player detected and in range
 		if pla > 0 then
 
-			local in_range = 0
-			local objsp = minetest.get_objects_inside_radius(pos, pla)
-
-			for _, oir in pairs(objsp) do
-
-				if is_player(oir) then
-
-					in_range = 1
+			local in_range = false
 
+			local players = minetest.get_connected_players()
+			for i = 1, #players do
+				local player = players[i]
+				if player:get_pos():distance(pos) <= pla then
+					in_range = true
 					break
 				end
 			end
 
 			-- player not found
-			if in_range == 0 then
+			if in_range then
 				return
 			end
 		end