diff --git a/api.lua b/api.lua
index 3ae6fd3..b66d7da 100644
--- a/api.lua
+++ b/api.lua
@@ -1,5 +1,3 @@
-local MP = minetest.get_modpath(minetest.get_current_modname())
-
 -- Check for translation method
 local S
 if minetest.get_translator ~= nil then
@@ -27,7 +25,7 @@ local use_cmi = minetest.global_exists("cmi")
 
 mobs = {
 	mod = "redo",
-	version = "20221027",
+	version = "20221031",
 	intllib = S,
 	invis = minetest.global_exists("invisibility") and invisibility or {}
 }
@@ -55,7 +53,6 @@ local atan = function(x)
 end
 local table_copy = table.copy
 local table_remove = table.remove
-local vadd = vector.add
 local vdirection = vector.direction
 local vmultiply = vector.multiply
 local vsubtract = vector.subtract
@@ -80,7 +77,6 @@ local spawn_monster_protected = settings:get_bool("mobs_spawn_monster_protected"
 local remove_far = settings:get_bool("remove_far_mobs") ~= false
 local mob_area_spawn = settings:get_bool("mob_area_spawn")
 local difficulty = tonumber(settings:get("mob_difficulty")) or 1.0
-local show_health = settings:get_bool("mob_show_health") ~= false
 local max_per_block = tonumber(settings:get("max_objects_per_block") or 99)
 local mob_nospawn_range = tonumber(settings:get("mob_nospawn_range") or 12)
 local active_limit = tonumber(settings:get("mob_active_limit") or 0)
@@ -446,7 +442,7 @@ local line_of_sight = function(self, pos1, pos2, stepsize)
 
 	stepsize = stepsize or 1
 
-	local s, pos = minetest.line_of_sight(pos1, pos2, stepsize)
+	local s = minetest.line_of_sight(pos1, pos2, stepsize)
 
 	-- normal walking and flying mobs can see you through air
 	if s == true then
@@ -1289,7 +1285,7 @@ print("on: " .. self.standing_on
 			local yaw = self.object:get_yaw() or 0
 			local turn = random(0, 2) + 1.35
 
-			yaw = self:set_yaw(yaw + turn, 12)
+			self:set_yaw(yaw + turn, 12)
 
 			self.jump_count = 0
 		end
@@ -1316,7 +1312,6 @@ local entity_physics = function(pos, radius)
 		if dist < 1 then dist = 1 end
 
 		local damage = floor((4 / dist) * radius)
-		local ent = objs[n]:get_luaentity()
 
 		-- punches work on entities AND players
 		objs[n]:punch(objs[n], 1.0, {
@@ -2245,7 +2240,7 @@ function mob_class:do_states(dtime)
 				yaw = yaw + random(-0.5, 0.5)
 			end
 
-			yaw = self:set_yaw(yaw, 8)
+			self:set_yaw(yaw, 8)
 		end
 
 		self:set_velocity(0)
@@ -2309,14 +2304,14 @@ function mob_class:do_states(dtime)
 				end
 			end
 
-			yaw = self:set_yaw(yaw, 8)
+			self:set_yaw(yaw, 8)
 
 		-- otherwise randomly turn
 		elseif self.randomly_turn and random(100) <= 30 then
 
 			yaw = yaw + random(-0.5, 0.5)
 
-			yaw = self:set_yaw(yaw, 8)
+			self:set_yaw(yaw, 8)
 
 			-- for flying/swimming mobs randomly move up and down also
 			if self.fly_in
@@ -2412,7 +2407,7 @@ function mob_class:do_states(dtime)
 
 		if self.attack_type == "explode" then
 
-			yaw = yaw_to_pos(self, p)
+			yaw_to_pos(self, p)
 
 			local node_break_radius = self.explosion_radius or 1
 			local entity_damage_radius = self.explosion_damage_radius
@@ -2581,7 +2576,7 @@ function mob_class:do_states(dtime)
 				p = {x = p1.x, y = p1.y, z = p1.z}
 			end
 
-			yaw = yaw_to_pos(self, p)
+			yaw_to_pos(self, p)
 
 			-- move towards enemy if beyond mob reach
 			if dist > (self.reach + (self.reach_ext or 0)) then
@@ -2675,7 +2670,7 @@ function mob_class:do_states(dtime)
 
 			local vec = {x = p.x - s.x, y = p.y - s.y, z = p.z - s.z}
 
-			yaw = yaw_to_pos(self, p)
+			yaw_to_pos(self, p)
 
 			self:set_velocity(0)
 
@@ -2835,7 +2830,6 @@ function mob_class:on_punch(hitter, tflp, tool_capabilities, dir, damage)
 
 	local weapon = hitter:get_wielded_item()
 	local weapon_def = weapon:get_definition() or {}
-	local punch_interval = 1.4
 
 	-- calculate mob damage
 	local damage = 0
@@ -2897,7 +2891,7 @@ function mob_class:on_punch(hitter, tflp, tool_capabilities, dir, damage)
 	end
 
 	-- add weapon wear
-	punch_interval = tool_capabilities.full_punch_interval or 1.4
+	local punch_interval = tool_capabilities.full_punch_interval or 1.4
 
 	-- toolrank support
 	local wear = floor((punch_interval / 75) * 9000)
@@ -2995,7 +2989,7 @@ function mob_class:on_punch(hitter, tflp, tool_capabilities, dir, damage)
 	and self.order ~= "stand" then
 
 		local lp = hitter:get_pos()
-		local yaw = yaw_to_pos(self, lp, 3)
+		yaw = yaw_to_pos(self, lp, 3)
 
 		self.state = "runaway"
 		self.runaway_timer = 0
diff --git a/api.txt b/api.txt
index db28996..5c424bd 100644
--- a/api.txt
+++ b/api.txt
@@ -733,8 +733,6 @@ External Settings for "minetest.conf"
                             spawn number e.g. mobs_animal:cow = 1000,5
    'mob_difficulty'         sets difficulty level (health and hit damage
                             multiplied by this number), defaults to 1.0.
-   'mob_show_health'        if false then punching mob will not show health status
-                            (true by default)
    'mob_chance_multiplier'  multiplies chance of all mobs spawning and can be set
                             to 0.5 to have mobs spawn more or 2.0 to spawn less.
                             e.g.  1 in 7000 * 0.5 = 1 in 3500 so better odds of