diff --git a/mods/ENTITIES/mcl_mobs/api.lua b/mods/ENTITIES/mcl_mobs/api.lua
index 2e876f1f0e..22e75696f7 100644
--- a/mods/ENTITIES/mcl_mobs/api.lua
+++ b/mods/ENTITIES/mcl_mobs/api.lua
@@ -68,11 +68,6 @@ local function dir_to_pitch(dir)
 	return -math.atan2(-dir.y, xz)
 end
 
--- pathfinding settings
-local enable_pathfinding = true
-local stuck_timeout = 3 -- how long before mob gets stuck in place and starts searching
-local stuck_path_timeout = 10 -- how long will mob follow path before giving up
-
 -- default nodes
 local node_ice = "mcl_core:ice"
 local node_snowblock = "mcl_core:snowblock"
@@ -118,32 +113,6 @@ function mob_class:player_in_active_range()
 end
 
 
--- blast damage to entities nearby
-local function entity_physics(pos,radius)
-
-	radius = radius * 2
-
-	local objs = minetest.get_objects_inside_radius(pos, radius)
-	local obj_pos, dist
-
-	for n = 1, #objs do
-
-		obj_pos = objs[n]:get_pos()
-
-		dist = vector.distance(pos, obj_pos)
-		if dist < 1 then dist = 1 end
-
-		local damage = math.floor((4 / dist) * radius)
-		local ent = objs[n]:get_luaentity()
-
-		-- punches work on entities AND players
-		objs[n]:punch(objs[n], 1.0, {
-			full_punch_interval = 1.0,
-			damage_groups = {fleshy = damage},
-		}, pos)
-	end
-end
-
 -- Return true if object is in view_range
 function mob_class:object_in_range(object)
 	if not object then
@@ -169,21 +138,6 @@ function mob_class:object_in_range(object)
 	return p1 and p2 and (vector.distance(p1, p2) <= dist)
 end
 
--- attack player/mob
-local do_attack = function(self, player)
-
-	if self.state == "attack" or self.state == "die" then
-		return
-	end
-
-	self.attack = player
-	self.state = "attack"
-
-	-- TODO: Implement war_cry sound without being annoying
-	--if random(0, 100) < 90 then
-		--self:mob_sound("war_cry", true)
-	--end
-end
 -- Returns true is node can deal damage to self
 local is_node_dangerous = function(self, nodename)
 	local nn = nodename
@@ -224,76 +178,6 @@ local is_node_waterhazard = function(self, nodename)
 	return false
 end
 
-
--- check line of sight (BrunoMine)
-local line_of_sight = function(self, pos1, pos2, stepsize)
-
-	stepsize = stepsize or 1
-
-	local s, pos = minetest.line_of_sight(pos1, pos2, stepsize)
-
-	-- normal walking and flying mobs can see you through air
-	if s == true then
-		return true
-	end
-
-	-- New pos1 to be analyzed
-	local npos1 = {x = pos1.x, y = pos1.y, z = pos1.z}
-
-	local r, pos = minetest.line_of_sight(npos1, pos2, stepsize)
-
-	-- Checks the return
-	if r == true then return true end
-
-	-- Nodename found
-	local nn = minetest.get_node(pos).name
-
-	-- Target Distance (td) to travel
-	local td = vector.distance(pos1, pos2)
-
-	-- Actual Distance (ad) traveled
-	local ad = 0
-
-	-- It continues to advance in the line of sight in search of a real
-	-- obstruction which counts as 'normal' nodebox.
-	while minetest.registered_nodes[nn]
-	and minetest.registered_nodes[nn].walkable == false do
-
-		-- Check if you can still move forward
-		if td < ad + stepsize then
-			return true -- Reached the target
-		end
-
-		-- Moves the analyzed pos
-		local d = vector.distance(pos1, pos2)
-
-		npos1.x = ((pos2.x - pos1.x) / d * stepsize) + pos1.x
-		npos1.y = ((pos2.y - pos1.y) / d * stepsize) + pos1.y
-		npos1.z = ((pos2.z - pos1.z) / d * stepsize) + pos1.z
-
-		-- NaN checks
-		if d == 0
-		or npos1.x ~= npos1.x
-		or npos1.y ~= npos1.y
-		or npos1.z ~= npos1.z then
-			return false
-		end
-
-		ad = ad + stepsize
-
-		-- scan again
-		r, pos = minetest.line_of_sight(npos1, pos2, stepsize)
-
-		if r == true then return true end
-
-		-- New Nodename found
-		nn = minetest.get_node(pos).name
-
-	end
-
-	return false
-end
-
 -- check if within physical map limits (-30911 to 30927)
 local function within_limits(pos, radius)
 	local wmin, wmax = -30912, 30928
@@ -684,392 +568,6 @@ local day_docile = function(self)
 end
 
 
-local los_switcher = false
-local height_switcher = false
-
--- path finding and smart mob routine by rnd, line_of_sight and other edits by Elkien3
-local smart_mobs = function(self, s, p, dist, dtime)
-
-	local s1 = self.path.lastpos
-
-	local target_pos = self.attack:get_pos()
-
-	-- is it becoming stuck?
-	if math.abs(s1.x - s.x) + math.abs(s1.z - s.z) < .5 then
-		self.path.stuck_timer = self.path.stuck_timer + dtime
-	else
-		self.path.stuck_timer = 0
-	end
-
-	self.path.lastpos = {x = s.x, y = s.y, z = s.z}
-
-	local use_pathfind = false
-	local has_lineofsight = minetest.line_of_sight(
-		{x = s.x, y = (s.y) + .5, z = s.z},
-		{x = target_pos.x, y = (target_pos.y) + 1.5, z = target_pos.z}, .2)
-
-	-- im stuck, search for path
-	if not has_lineofsight then
-
-		if los_switcher == true then
-			use_pathfind = true
-			los_switcher = false
-		end -- cannot see target!
-	else
-		if los_switcher == false then
-
-			los_switcher = true
-			use_pathfind = false
-
-			minetest.after(1, function(self)
-				if not self.object:get_luaentity() then
-					return
-				end
-				if has_lineofsight then self.path.following = false end
-			end, self)
-		end -- can see target!
-	end
-
-	if (self.path.stuck_timer > stuck_timeout and not self.path.following) then
-
-		use_pathfind = true
-		self.path.stuck_timer = 0
-
-		minetest.after(1, function(self)
-			if not self.object:get_luaentity() then
-				return
-			end
-			if has_lineofsight then self.path.following = false end
-		end, self)
-	end
-
-	if (self.path.stuck_timer > stuck_path_timeout and self.path.following) then
-
-		use_pathfind = true
-		self.path.stuck_timer = 0
-
-		minetest.after(1, function(self)
-			if not self.object:get_luaentity() then
-				return
-			end
-			if has_lineofsight then self.path.following = false end
-		end, self)
-	end
-
-	if math.abs(vector.subtract(s,target_pos).y) > self.stepheight then
-
-		if height_switcher then
-			use_pathfind = true
-			height_switcher = false
-		end
-	else
-		if not height_switcher then
-			use_pathfind = false
-			height_switcher = true
-		end
-	end
-
-	if use_pathfind then
-		-- lets try find a path, first take care of positions
-		-- since pathfinder is very sensitive
-		local sheight = self.collisionbox[5] - self.collisionbox[2]
-
-		-- round position to center of node to avoid stuck in walls
-		-- also adjust height for player models!
-		s.x = math.floor(s.x + 0.5)
-		s.z = math.floor(s.z + 0.5)
-
-		local ssight, sground = minetest.line_of_sight(s, {
-			x = s.x, y = s.y - 4, z = s.z}, 1)
-
-		-- determine node above ground
-		if not ssight then
-			s.y = sground.y + 1
-		end
-
-		local p1 = self.attack:get_pos()
-
-		p1.x = math.floor(p1.x + 0.5)
-		p1.y = math.floor(p1.y + 0.5)
-		p1.z = math.floor(p1.z + 0.5)
-
-		local dropheight = 12
-		if self.fear_height ~= 0 then dropheight = self.fear_height end
-		local jumpheight = 0
-		if self.jump and self.jump_height >= 4 then
-			jumpheight = math.min(math.ceil(self.jump_height / 4), 4)
-		elseif self.stepheight > 0.5 then
-			jumpheight = 1
-		end
-		self.path.way = minetest.find_path(s, p1, 16, jumpheight, dropheight, "A*_noprefetch")
-
-		self.state = ""
-		do_attack(self, self.attack)
-
-		-- no path found, try something else
-		if not self.path.way then
-
-			self.path.following = false
-
-			 -- lets make way by digging/building if not accessible
-			if self.pathfinding == 2 and mobs_griefing then
-
-				-- is player higher than mob?
-				if s.y < p1.y then
-
-					-- build upwards
-					if not minetest.is_protected(s, "") then
-
-						local ndef1 = minetest.registered_nodes[self.standing_in]
-
-						if ndef1 and (ndef1.buildable_to or ndef1.groups.liquid) then
-
-								minetest.set_node(s, {name = mcl_mobs.fallback_node})
-						end
-					end
-
-					local sheight = math.ceil(self.collisionbox[5]) + 1
-
-					-- assume mob is 2 blocks high so it digs above its head
-					s.y = s.y + sheight
-
-					-- remove one block above to make room to jump
-					if not minetest.is_protected(s, "") then
-
-						local node1 = node_ok(s, "air").name
-						local ndef1 = minetest.registered_nodes[node1]
-
-						if node1 ~= "air"
-						and node1 ~= "ignore"
-						and ndef1
-						and not ndef1.groups.level
-						and not ndef1.groups.unbreakable
-						and not ndef1.groups.liquid then
-
-							minetest.set_node(s, {name = "air"})
-							minetest.add_item(s, ItemStack(node1))
-
-						end
-					end
-
-					s.y = s.y - sheight
-					self.object:set_pos({x = s.x, y = s.y + 2, z = s.z})
-
-				else -- dig 2 blocks to make door toward player direction
-
-					local yaw1 = self.object:get_yaw() + math.pi / 2
-					local p1 = {
-						x = s.x + math.cos(yaw1),
-						y = s.y,
-						z = s.z + math.sin(yaw1)
-					}
-
-					if not minetest.is_protected(p1, "") then
-
-						local node1 = node_ok(p1, "air").name
-						local ndef1 = minetest.registered_nodes[node1]
-
-						if node1 ~= "air"
-							and node1 ~= "ignore"
-							and ndef1
-							and not ndef1.groups.level
-							and not ndef1.groups.unbreakable
-							and not ndef1.groups.liquid then
-
-							minetest.add_item(p1, ItemStack(node1))
-							minetest.set_node(p1, {name = "air"})
-						end
-
-						p1.y = p1.y + 1
-						node1 = node_ok(p1, "air").name
-						ndef1 = minetest.registered_nodes[node1]
-
-						if node1 ~= "air"
-						and node1 ~= "ignore"
-						and ndef1
-						and not ndef1.groups.level
-						and not ndef1.groups.unbreakable
-						and not ndef1.groups.liquid then
-
-							minetest.add_item(p1, ItemStack(node1))
-							minetest.set_node(p1, {name = "air"})
-						end
-
-					end
-				end
-			end
-
-			-- will try again in 2 seconds
-			self.path.stuck_timer = stuck_timeout - 2
-		elseif s.y < p1.y and (not self.fly) then
-			do_jump(self) --add jump to pathfinding
-			self.path.following = true
-			-- Yay, I found path!
-			-- TODO: Implement war_cry sound without being annoying
-			--self:mob_sound("war_cry", true)
-		else
-			self:set_velocity(self.walk_velocity)
-
-			-- follow path now that it has it
-			self.path.following = true
-		end
-	end
-end
-
-
--- specific attacks
-local specific_attack = function(list, what)
-
-	-- no list so attack default (player, animals etc.)
-	if list == nil then
-		return true
-	end
-
-	-- found entity on list to attack?
-	for no = 1, #list do
-
-		if list[no] == what then
-			return true
-		end
-	end
-
-	return false
-end
-
--- find someone to attack
-local monster_attack = function(self)
-	if not damage_enabled
-	or self.passive ~= false
-	or self.state == "attack"
-	or day_docile(self) then
-		return
-	end
-
-	local s = self.object:get_pos()
-	local p, sp, dist
-	local player, obj, min_player
-	local type, name = "", ""
-	local min_dist = self.view_range + 1
-	local objs = minetest.get_objects_inside_radius(s, self.view_range)
-	local blacklist_attack = {}
-
-	for n = 1, #objs do
-		if not objs[n]:is_player() then
-			obj = objs[n]:get_luaentity()
-
-			if obj then
-				player = obj.object
-				name = obj.name or ""
-			end
-			if obj and obj.type == self.type and obj.passive == false and obj.state == "attack" and obj.attack then
-				table.insert(blacklist_attack, obj.attack)
-			end
-		end
-	end
-
-	for n = 1, #objs do
-
-
-		if objs[n]:is_player() then
-			if mcl_mobs.invis[ objs[n]:get_player_name() ] or (not self:object_in_range(objs[n])) then
-				type = ""
-			elseif (self.type == "monster" or self._aggro) then
-				player = objs[n]
-				type = "player"
-				name = "player"
-			end
-		else
-			obj = objs[n]:get_luaentity()
-
-			if obj then
-				player = obj.object
-				type = obj.type
-				name = obj.name or ""
-			end
-
-		end
-
-		-- find specific mob to attack, failing that attack player/npc/animal
-		if specific_attack(self.specific_attack, name)
-		and (type == "player" or ( type == "npc" and self.attack_npcs )
-			or (type == "animal" and self.attack_animals == true)) then
-
-			p = player:get_pos()
-			sp = s
-
-			dist = vector.distance(p, s)
-
-			-- aim higher to make looking up hills more realistic
-			p.y = p.y + 1
-			sp.y = sp.y + 1
-
-			local attacked_p = false
-			for c=1, #blacklist_attack do
-				if blacklist_attack[c] == player then
-					attacked_p = true
-				end
-			end
-			-- choose closest player to attack
-			if dist < min_dist
-			and not attacked_p
-			and line_of_sight(self, sp, p, 2) == true then
-				min_dist = dist
-				min_player = player
-			end
-		end
-	end
-	if not min_player and #blacklist_attack > 0 then
-		min_player=blacklist_attack[math.random(#blacklist_attack)]
-	end
-	-- attack player
-	if min_player then
-		do_attack(self, min_player)
-	end
-end
-
-
--- npc, find closest monster to attack
-local npc_attack = function(self)
-
-	if self.type ~= "npc"
-	or not self.attacks_monsters
-	or self.state == "attack" then
-		return
-	end
-
-	local p, sp, obj, min_player
-	local s = self.object:get_pos()
-	local min_dist = self.view_range + 1
-	local objs = minetest.get_objects_inside_radius(s, self.view_range)
-
-	for n = 1, #objs do
-
-		obj = objs[n]:get_luaentity()
-
-		if obj and obj.type == "monster" then
-
-			p = obj.object:get_pos()
-			sp = s
-
-			local dist = vector.distance(p, s)
-
-			-- aim higher to make looking up hills more realistic
-			p.y = p.y + 1
-			sp.y = sp.y + 1
-
-			if dist < min_dist
-			and line_of_sight(self, sp, p, 2) == true then
-				min_dist = dist
-				min_player = obj.object
-			end
-		end
-	end
-
-	if min_player then
-		do_attack(self, min_player)
-	end
-end
-
 
 -- specific runaway
 local specific_runaway = function(list, what)
@@ -1144,7 +642,7 @@ local runaway_from = function(self)
 
 			-- choose closest player/mpb to runaway from
 			if dist < min_dist
-			and line_of_sight(self, sp, p, 2) == true then
+			and self:line_of_sight(sp, p, 2) == true then
 				min_dist = dist
 				min_player = player
 			end
@@ -1310,35 +808,6 @@ local follow_flop = function(self)
 	end
 end
 
-
--- dogshoot attack switch and counter function
-local dogswitch = function(self, dtime)
-
-	-- switch mode not activated
-	if not self.dogshoot_switch
-	or not dtime then
-		return 0
-	end
-
-	self.dogshoot_count = self.dogshoot_count + dtime
-
-	if (self.dogshoot_switch == 1
-	and self.dogshoot_count > self.dogshoot_count_max)
-	or (self.dogshoot_switch == 2
-	and self.dogshoot_count > self.dogshoot_count2_max) then
-
-		self.dogshoot_count = 0
-
-		if self.dogshoot_switch == 1 then
-			self.dogshoot_switch = 2
-		else
-			self.dogshoot_switch = 1
-		end
-	end
-
-	return self.dogshoot_switch
-end
-
 local function go_to_pos(entity,b)
 	if not entity then return end
 	local s=entity.object:get_pos()
@@ -1643,7 +1112,7 @@ local do_states = function(self, dtime)
 			-- start timer when in reach and line of sight
 			if not self.v_start
 			and dist <= self.reach
-			and line_of_sight(self, s, p, 2) then
+			and self:line_of_sight( s, p, 2) then
 
 				self.v_start = true
 				self.timer = 0
@@ -1654,7 +1123,7 @@ local do_states = function(self, dtime)
 			elseif self.allow_fuse_reset
 			and self.v_start
 			and (dist >= self.explosiontimer_reset_radius
-					or not line_of_sight(self, s, p, 2)) then
+					or not self:line_of_sight( s, p, 2)) then
 				self.v_start = false
 				self.timer = 0
 				self.blinktimer = 0
@@ -1705,8 +1174,7 @@ local do_states = function(self, dtime)
 							gain = 1.0,
 							max_hear_distance = self.sounds.distance or 32
 						}, true)
-
-						entity_physics(pos, entity_damage_radius)
+						self:entity_physics(pos,entity_damage_radius)
 						mcl_mobs.effect(pos, 32, "mcl_particles_smoke.png", nil, nil, node_break_radius, 1, 0)
 					end
 					mcl_burning.extinguish(self.object)
@@ -1717,8 +1185,8 @@ local do_states = function(self, dtime)
 			end
 
 		elseif self.attack_type == "dogfight"
-		or (self.attack_type == "dogshoot" and dogswitch(self, dtime) == 2) and (dist >= self.avoid_distance or not self.shooter_avoid_enemy)
-		or (self.attack_type == "dogshoot" and dist <= self.reach and dogswitch(self) == 0) then
+		or (self.attack_type == "dogshoot" and self:dogswitch(dtime) == 2) and (dist >= self.avoid_distance or not self.shooter_avoid_enemy)
+		or (self.attack_type == "dogshoot" and dist <= self.reach and self:dogswitch() == 0) then
 
 			if self.fly
 			and dist > self.reach then
@@ -1814,7 +1282,7 @@ local do_states = function(self, dtime)
 				if self.pathfinding -- only if mob has pathfinding enabled
 				and enable_pathfinding then
 
-					smart_mobs(self, s, p, dist, dtime)
+					self:smart_mobs(s, p, dist, dtime)
 				end
 
 				if is_at_cliff_or_danger(self) then
@@ -1865,7 +1333,7 @@ local do_states = function(self, dtime)
 						p2.y = p2.y + .5
 						s2.y = s2.y + .5
 
-						if line_of_sight(self, p2, s2) == true then
+						if self:line_of_sight( p2, s2) == true then
 
 							-- play attack sound
 							self:mob_sound("attack")
@@ -1893,8 +1361,8 @@ local do_states = function(self, dtime)
 			end
 
 		elseif self.attack_type == "shoot"
-		or (self.attack_type == "dogshoot" and dogswitch(self, dtime) == 1)
-		or (self.attack_type == "dogshoot" and (dist > self.reach or dist < self.avoid_distance and self.shooter_avoid_enemy) and dogswitch(self) == 0) then
+		or (self.attack_type == "dogshoot" and self:dogswitch(dtime) == 1)
+		or (self.attack_type == "dogshoot" and (dist > self.reach or dist < self.avoid_distance and self.shooter_avoid_enemy) and self:dogswitch() == 0) then
 
 			p.y = p.y - .5
 			s.y = s.y + .5
@@ -2266,7 +1734,7 @@ local mob_punch = function(self, hitter, tflp, tool_capabilities, dir)
 		if not die then
 			-- attack whoever punched mob
 			self.state = ""
-			do_attack(self, hitter)
+			self:do_attack(hitter)
 			self._aggro= true
 		end
 
@@ -2284,12 +1752,12 @@ local mob_punch = function(self, hitter, tflp, tool_capabilities, dir)
 				and obj.state ~= "attack"
 				and obj.owner ~= name then
 					if obj.name == self.name then
-						do_attack(obj, hitter)
+						obj:do_attack(hitter)
 					elseif type(obj.group_attack) == "table" then
 						for i=1, #obj.group_attack do
 							if obj.name == obj.group_attack[i] then
 								obj._aggro = true
-								do_attack(obj, hitter)
+								obj:do_attack(hitter)
 								break
 							end
 						end
@@ -2298,7 +1766,7 @@ local mob_punch = function(self, hitter, tflp, tool_capabilities, dir)
 
 				-- have owned mobs attack player threat
 				if obj.owner == name and obj.owner_loyal then
-					do_attack(obj, self.object)
+					obj:do_attack(self.object)
 				end
 			end
 		end
@@ -2849,9 +2317,9 @@ local mob_step = function(self, dtime)
 		replace(self, pos)
 	end
 
-	monster_attack(self)
+	self:monster_attack()
 
-	npc_attack(self)
+	self:npc_attack()
 
 	self:check_breeding()
 
@@ -3214,7 +2682,7 @@ function mcl_mobs.register_arrow(name, def)
 
 	if not name or not def then return end -- errorcheck
 
-	minetest.register_entity(name, {
+	minetest.register_entity(name, setmetatable({
 
 		physical = false,
 		visual = def.visual,
@@ -3334,36 +2802,9 @@ function mcl_mobs.register_arrow(name, def)
 
 			self.lastpos = pos
 		end
-	})
+	},mob_class))
 end
 
-
--- no damage to nodes explosion
-function mcl_mobs:safe_boom(self, pos, strength)
-	minetest.sound_play(self.sounds and self.sounds.explode or "tnt_explode", {
-		pos = pos,
-		gain = 1.0,
-		max_hear_distance = self.sounds and self.sounds.distance or 32
-	}, true)
-	local radius = strength
-	entity_physics(pos, radius)
-	mcl_mobs.effect(pos, 32, "mcl_particles_smoke.png", radius * 3, radius * 5, radius, 1, 0)
-end
-
-
--- make explosion with protection and tnt mod check
-function mcl_mobs:boom(self, pos, strength, fire)
-	if mobs_griefing and not minetest.is_protected(pos, "") then
-		mcl_explosions.explode(pos, strength, { drop_chance = 1.0, fire = fire }, self.object)
-	else
-		mcl_mobs:safe_boom(self, pos, strength)
-	end
-
-	-- delete the object after it punched the player to avoid nil entities in e.g. mcl_shields!!
-	self.object:remove()
-end
-
-
 -- Register spawn eggs
 
 -- Note: This also introduces the “spawn_egg” group:
diff --git a/mods/ENTITIES/mcl_mobs/combat.lua b/mods/ENTITIES/mcl_mobs/combat.lua
new file mode 100644
index 0000000000..b44fc0ac1d
--- /dev/null
+++ b/mods/ENTITIES/mcl_mobs/combat.lua
@@ -0,0 +1,492 @@
+local math, vector, minetest, mcl_mobs = math, vector, minetest, mcl_mobs
+local mob_class = mcl_mobs.mob_class
+
+-- pathfinding settings
+local enable_pathfinding = true
+local stuck_timeout = 3 -- how long before mob gets stuck in place and starts searching
+local stuck_path_timeout = 10 -- how long will mob follow path before giving up
+
+-- attack player/mob
+function mob_class:do_attack(player)
+
+	if self.state == "attack" or self.state == "die" then
+		return
+	end
+
+	self.attack = player
+	self.state = "attack"
+
+	-- TODO: Implement war_cry sound without being annoying
+	--if random(0, 100) < 90 then
+		--self:mob_sound("war_cry", true)
+	--end
+end
+
+-- blast damage to entities nearby
+local function entity_physics(pos,radius)
+
+	radius = radius * 2
+
+	local objs = minetest.get_objects_inside_radius(pos, radius)
+	local obj_pos, dist
+
+	for n = 1, #objs do
+
+		obj_pos = objs[n]:get_pos()
+
+		dist = vector.distance(pos, obj_pos)
+		if dist < 1 then dist = 1 end
+
+		local damage = math.floor((4 / dist) * radius)
+		local ent = objs[n]:get_luaentity()
+
+		-- punches work on entities AND players
+		objs[n]:punch(objs[n], 1.0, {
+			full_punch_interval = 1.0,
+			damage_groups = {fleshy = damage},
+		}, pos)
+	end
+end
+
+function mob_class:entity_physics(self,pos,radius) return entity_physics(pos,radius) end
+
+local los_switcher = false
+local height_switcher = false
+
+-- path finding and smart mob routine by rnd, line_of_sight and other edits by Elkien3
+function mob_class:smart_mobs(s, p, dist, dtime)
+
+	local s1 = self.path.lastpos
+
+	local target_pos = self.attack:get_pos()
+
+	-- is it becoming stuck?
+	if math.abs(s1.x - s.x) + math.abs(s1.z - s.z) < .5 then
+		self.path.stuck_timer = self.path.stuck_timer + dtime
+	else
+		self.path.stuck_timer = 0
+	end
+
+	self.path.lastpos = {x = s.x, y = s.y, z = s.z}
+
+	local use_pathfind = false
+	local has_lineofsight = minetest.line_of_sight(
+		{x = s.x, y = (s.y) + .5, z = s.z},
+		{x = target_pos.x, y = (target_pos.y) + 1.5, z = target_pos.z}, .2)
+
+	-- im stuck, search for path
+	if not has_lineofsight then
+
+		if los_switcher == true then
+			use_pathfind = true
+			los_switcher = false
+		end -- cannot see target!
+	else
+		if los_switcher == false then
+
+			los_switcher = true
+			use_pathfind = false
+
+			minetest.after(1, function(self)
+				if not self.object:get_luaentity() then
+					return
+				end
+				if has_lineofsight then self.path.following = false end
+			end, self)
+		end -- can see target!
+	end
+
+	if (self.path.stuck_timer > stuck_timeout and not self.path.following) then
+
+		use_pathfind = true
+		self.path.stuck_timer = 0
+
+		minetest.after(1, function(self)
+			if not self.object:get_luaentity() then
+				return
+			end
+			if has_lineofsight then self.path.following = false end
+		end, self)
+	end
+
+	if (self.path.stuck_timer > stuck_path_timeout and self.path.following) then
+
+		use_pathfind = true
+		self.path.stuck_timer = 0
+
+		minetest.after(1, function(self)
+			if not self.object:get_luaentity() then
+				return
+			end
+			if has_lineofsight then self.path.following = false end
+		end, self)
+	end
+
+	if math.abs(vector.subtract(s,target_pos).y) > self.stepheight then
+
+		if height_switcher then
+			use_pathfind = true
+			height_switcher = false
+		end
+	else
+		if not height_switcher then
+			use_pathfind = false
+			height_switcher = true
+		end
+	end
+
+	if use_pathfind then
+		-- lets try find a path, first take care of positions
+		-- since pathfinder is very sensitive
+		local sheight = self.collisionbox[5] - self.collisionbox[2]
+
+		-- round position to center of node to avoid stuck in walls
+		-- also adjust height for player models!
+		s.x = math.floor(s.x + 0.5)
+		s.z = math.floor(s.z + 0.5)
+
+		local ssight, sground = minetest.line_of_sight(s, {
+			x = s.x, y = s.y - 4, z = s.z}, 1)
+
+		-- determine node above ground
+		if not ssight then
+			s.y = sground.y + 1
+		end
+
+		local p1 = self.attack:get_pos()
+
+		p1.x = math.floor(p1.x + 0.5)
+		p1.y = math.floor(p1.y + 0.5)
+		p1.z = math.floor(p1.z + 0.5)
+
+		local dropheight = 12
+		if self.fear_height ~= 0 then dropheight = self.fear_height end
+		local jumpheight = 0
+		if self.jump and self.jump_height >= 4 then
+			jumpheight = math.min(math.ceil(self.jump_height / 4), 4)
+		elseif self.stepheight > 0.5 then
+			jumpheight = 1
+		end
+		self.path.way = minetest.find_path(s, p1, 16, jumpheight, dropheight, "A*_noprefetch")
+
+		self.state = ""
+		do_attack(self, self.attack)
+
+		-- no path found, try something else
+		if not self.path.way then
+
+			self.path.following = false
+
+			 -- lets make way by digging/building if not accessible
+			if self.pathfinding == 2 and mobs_griefing then
+
+				-- is player higher than mob?
+				if s.y < p1.y then
+
+					-- build upwards
+					if not minetest.is_protected(s, "") then
+
+						local ndef1 = minetest.registered_nodes[self.standing_in]
+
+						if ndef1 and (ndef1.buildable_to or ndef1.groups.liquid) then
+
+								minetest.set_node(s, {name = mcl_mobs.fallback_node})
+						end
+					end
+
+					local sheight = math.ceil(self.collisionbox[5]) + 1
+
+					-- assume mob is 2 blocks high so it digs above its head
+					s.y = s.y + sheight
+
+					-- remove one block above to make room to jump
+					if not minetest.is_protected(s, "") then
+
+						local node1 = node_ok(s, "air").name
+						local ndef1 = minetest.registered_nodes[node1]
+
+						if node1 ~= "air"
+						and node1 ~= "ignore"
+						and ndef1
+						and not ndef1.groups.level
+						and not ndef1.groups.unbreakable
+						and not ndef1.groups.liquid then
+
+							minetest.set_node(s, {name = "air"})
+							minetest.add_item(s, ItemStack(node1))
+
+						end
+					end
+
+					s.y = s.y - sheight
+					self.object:set_pos({x = s.x, y = s.y + 2, z = s.z})
+
+				else -- dig 2 blocks to make door toward player direction
+
+					local yaw1 = self.object:get_yaw() + math.pi / 2
+					local p1 = {
+						x = s.x + math.cos(yaw1),
+						y = s.y,
+						z = s.z + math.sin(yaw1)
+					}
+
+					if not minetest.is_protected(p1, "") then
+
+						local node1 = node_ok(p1, "air").name
+						local ndef1 = minetest.registered_nodes[node1]
+
+						if node1 ~= "air"
+							and node1 ~= "ignore"
+							and ndef1
+							and not ndef1.groups.level
+							and not ndef1.groups.unbreakable
+							and not ndef1.groups.liquid then
+
+							minetest.add_item(p1, ItemStack(node1))
+							minetest.set_node(p1, {name = "air"})
+						end
+
+						p1.y = p1.y + 1
+						node1 = node_ok(p1, "air").name
+						ndef1 = minetest.registered_nodes[node1]
+
+						if node1 ~= "air"
+						and node1 ~= "ignore"
+						and ndef1
+						and not ndef1.groups.level
+						and not ndef1.groups.unbreakable
+						and not ndef1.groups.liquid then
+
+							minetest.add_item(p1, ItemStack(node1))
+							minetest.set_node(p1, {name = "air"})
+						end
+
+					end
+				end
+			end
+
+			-- will try again in 2 seconds
+			self.path.stuck_timer = stuck_timeout - 2
+		elseif s.y < p1.y and (not self.fly) then
+			do_jump(self) --add jump to pathfinding
+			self.path.following = true
+			-- Yay, I found path!
+			-- TODO: Implement war_cry sound without being annoying
+			--self:mob_sound("war_cry", true)
+		else
+			self:set_velocity(self.walk_velocity)
+
+			-- follow path now that it has it
+			self.path.following = true
+		end
+	end
+end
+
+
+-- specific attacks
+local specific_attack = function(list, what)
+
+	-- no list so attack default (player, animals etc.)
+	if list == nil then
+		return true
+	end
+
+	-- found entity on list to attack?
+	for no = 1, #list do
+
+		if list[no] == what then
+			return true
+		end
+	end
+
+	return false
+end
+
+-- find someone to attack
+function mob_class:monster_attack()
+	if not damage_enabled
+	or self.passive ~= false
+	or self.state == "attack"
+	or day_docile(self) then
+		return
+	end
+
+	local s = self.object:get_pos()
+	local p, sp, dist
+	local player, obj, min_player
+	local type, name = "", ""
+	local min_dist = self.view_range + 1
+	local objs = minetest.get_objects_inside_radius(s, self.view_range)
+	local blacklist_attack = {}
+
+	for n = 1, #objs do
+		if not objs[n]:is_player() then
+			obj = objs[n]:get_luaentity()
+
+			if obj then
+				player = obj.object
+				name = obj.name or ""
+			end
+			if obj and obj.type == self.type and obj.passive == false and obj.state == "attack" and obj.attack then
+				table.insert(blacklist_attack, obj.attack)
+			end
+		end
+	end
+
+	for n = 1, #objs do
+
+
+		if objs[n]:is_player() then
+			if mcl_mobs.invis[ objs[n]:get_player_name() ] or (not self:object_in_range(objs[n])) then
+				type = ""
+			elseif (self.type == "monster" or self._aggro) then
+				player = objs[n]
+				type = "player"
+				name = "player"
+			end
+		else
+			obj = objs[n]:get_luaentity()
+
+			if obj then
+				player = obj.object
+				type = obj.type
+				name = obj.name or ""
+			end
+
+		end
+
+		-- find specific mob to attack, failing that attack player/npc/animal
+		if specific_attack(self.specific_attack, name)
+		and (type == "player" or ( type == "npc" and self.attack_npcs )
+			or (type == "animal" and self.attack_animals == true)) then
+
+			p = player:get_pos()
+			sp = s
+
+			dist = vector.distance(p, s)
+
+			-- aim higher to make looking up hills more realistic
+			p.y = p.y + 1
+			sp.y = sp.y + 1
+
+			local attacked_p = false
+			for c=1, #blacklist_attack do
+				if blacklist_attack[c] == player then
+					attacked_p = true
+				end
+			end
+			-- choose closest player to attack
+			if dist < min_dist
+			and not attacked_p
+			and self:line_of_sight( sp, p, 2) == true then
+				min_dist = dist
+				min_player = player
+			end
+		end
+	end
+	if not min_player and #blacklist_attack > 0 then
+		min_player=blacklist_attack[math.random(#blacklist_attack)]
+	end
+	-- attack player
+	if min_player then
+		self:do_attack(min_player)
+	end
+end
+
+
+-- npc, find closest monster to attack
+function mob_class:npc_attack()
+
+	if self.type ~= "npc"
+	or not self.attacks_monsters
+	or self.state == "attack" then
+		return
+	end
+
+	local p, sp, obj, min_player
+	local s = self.object:get_pos()
+	local min_dist = self.view_range + 1
+	local objs = minetest.get_objects_inside_radius(s, self.view_range)
+
+	for n = 1, #objs do
+
+		obj = objs[n]:get_luaentity()
+
+		if obj and obj.type == "monster" then
+
+			p = obj.object:get_pos()
+			sp = s
+
+			local dist = vector.distance(p, s)
+
+			-- aim higher to make looking up hills more realistic
+			p.y = p.y + 1
+			sp.y = sp.y + 1
+
+			if dist < min_dist
+			and self:line_of_sight( sp, p, 2) == true then
+				min_dist = dist
+				min_player = obj.object
+			end
+		end
+	end
+
+	if min_player then
+		self:do_attack(min_player)
+	end
+end
+
+
+
+-- dogshoot attack switch and counter function
+function mob_class:dogswitch(dtime)
+
+	-- switch mode not activated
+	if not self.dogshoot_switch
+	or not dtime then
+		return 0
+	end
+
+	self.dogshoot_count = self.dogshoot_count + dtime
+
+	if (self.dogshoot_switch == 1
+	and self.dogshoot_count > self.dogshoot_count_max)
+	or (self.dogshoot_switch == 2
+	and self.dogshoot_count > self.dogshoot_count2_max) then
+
+		self.dogshoot_count = 0
+
+		if self.dogshoot_switch == 1 then
+			self.dogshoot_switch = 2
+		else
+			self.dogshoot_switch = 1
+		end
+	end
+
+	return self.dogshoot_switch
+end
+
+-- no damage to nodes explosion
+function mob_class:safe_boom(pos, strength)
+	minetest.sound_play(self.sounds and self.sounds.explode or "tnt_explode", {
+		pos = pos,
+		gain = 1.0,
+		max_hear_distance = self.sounds and self.sounds.distance or 32
+	}, true)
+	local radius = strength
+	entity_physics(pos, radius)
+	mcl_mobs.effect(pos, 32, "mcl_particles_smoke.png", radius * 3, radius * 5, radius, 1, 0)
+end
+
+
+-- make explosion with protection and tnt mod check
+function mob_class:boom(pos, strength, fire)
+	if mobs_griefing and not minetest.is_protected(pos, "") then
+		mcl_explosions.explode(pos, strength, { drop_chance = 1.0, fire = fire }, self.object)
+	else
+		mcl_mobs.mob_class.safe_boom(self, pos, strength) --need to call it this way bc self is the "arrow" object here
+	end
+
+	-- delete the object after it punched the player to avoid nil entities in e.g. mcl_shields!!
+	self.object:remove()
+end
diff --git a/mods/ENTITIES/mcl_mobs/init.lua b/mods/ENTITIES/mcl_mobs/init.lua
index 1f3642aa86..8be12d8f7a 100644
--- a/mods/ENTITIES/mcl_mobs/init.lua
+++ b/mods/ENTITIES/mcl_mobs/init.lua
@@ -7,8 +7,10 @@ local path = minetest.get_modpath(minetest.get_current_modname())
 --api and helpers
 dofile(path .. "/effects.lua")
 dofile(path .. "/physics.lua")
+dofile(path .. "/movement.lua")
 dofile(path .. "/items.lua")
 dofile(path .. "/pathfinding.lua")
+dofile(path .. "/combat.lua")
 dofile(path .. "/api.lua")
 
 --utility functions
diff --git a/mods/ENTITIES/mcl_mobs/movement.lua b/mods/ENTITIES/mcl_mobs/movement.lua
new file mode 100644
index 0000000000..20dff2d625
--- /dev/null
+++ b/mods/ENTITIES/mcl_mobs/movement.lua
@@ -0,0 +1,71 @@
+local math, vector, minetest, mcl_mobs = math, vector, minetest, mcl_mobs
+local mob_class = mcl_mobs.mob_class
+
+-- check line of sight (BrunoMine)
+function mob_class:line_of_sight(pos1, pos2, stepsize)
+
+	stepsize = stepsize or 1
+
+	local s, pos = minetest.line_of_sight(pos1, pos2, stepsize)
+
+	-- normal walking and flying mobs can see you through air
+	if s == true then
+		return true
+	end
+
+	-- New pos1 to be analyzed
+	local npos1 = {x = pos1.x, y = pos1.y, z = pos1.z}
+
+	local r, pos = minetest.line_of_sight(npos1, pos2, stepsize)
+
+	-- Checks the return
+	if r == true then return true end
+
+	-- Nodename found
+	local nn = minetest.get_node(pos).name
+
+	-- Target Distance (td) to travel
+	local td = vector.distance(pos1, pos2)
+
+	-- Actual Distance (ad) traveled
+	local ad = 0
+
+	-- It continues to advance in the line of sight in search of a real
+	-- obstruction which counts as 'normal' nodebox.
+	while minetest.registered_nodes[nn]
+	and minetest.registered_nodes[nn].walkable == false do
+
+		-- Check if you can still move forward
+		if td < ad + stepsize then
+			return true -- Reached the target
+		end
+
+		-- Moves the analyzed pos
+		local d = vector.distance(pos1, pos2)
+
+		npos1.x = ((pos2.x - pos1.x) / d * stepsize) + pos1.x
+		npos1.y = ((pos2.y - pos1.y) / d * stepsize) + pos1.y
+		npos1.z = ((pos2.z - pos1.z) / d * stepsize) + pos1.z
+
+		-- NaN checks
+		if d == 0
+		or npos1.x ~= npos1.x
+		or npos1.y ~= npos1.y
+		or npos1.z ~= npos1.z then
+			return false
+		end
+
+		ad = ad + stepsize
+
+		-- scan again
+		r, pos = minetest.line_of_sight(npos1, pos2, stepsize)
+
+		if r == true then return true end
+
+		-- New Nodename found
+		nn = minetest.get_node(pos).name
+
+	end
+
+	return false
+end
diff --git a/mods/ENTITIES/mobs_mc/creeper.lua b/mods/ENTITIES/mobs_mc/creeper.lua
index cf26d1d847..6bbb37d5a5 100644
--- a/mods/ENTITIES/mobs_mc/creeper.lua
+++ b/mods/ENTITIES/mobs_mc/creeper.lua
@@ -81,7 +81,7 @@ mcl_mobs.register_mob("mobs_mc:creeper", {
 		if self._forced_explosion_countdown_timer ~= nil then
 			self._forced_explosion_countdown_timer = self._forced_explosion_countdown_timer - dtime
 			if self._forced_explosion_countdown_timer <= 0 then
-				mcl_mobs:boom(self, mcl_util.get_object_center(self.object), self.explosion_strength)
+				self:boom(mcl_util.get_object_center(self.object), self.explosion_strength)
 			end
 		end
 	end,
@@ -203,7 +203,7 @@ mcl_mobs.register_mob("mobs_mc:creeper_charged", {
 		if self._forced_explosion_countdown_timer ~= nil then
 			self._forced_explosion_countdown_timer = self._forced_explosion_countdown_timer - dtime
 			if self._forced_explosion_countdown_timer <= 0 then
-				mcl_mobs:boom(self, mcl_util.get_object_center(self.object), self.explosion_strength)
+				self:boom(mcl_util.get_object_center(self.object), self.explosion_strength)
 			end
 		end
 	end,
diff --git a/mods/ENTITIES/mobs_mc/ender_dragon.lua b/mods/ENTITIES/mobs_mc/ender_dragon.lua
index 0c7375fdcd..ef4c8f8118 100644
--- a/mods/ENTITIES/mobs_mc/ender_dragon.lua
+++ b/mods/ENTITIES/mobs_mc/ender_dragon.lua
@@ -166,7 +166,7 @@ mcl_mobs.register_arrow("mobs_mc:dragon_fireball", {
 
 	-- node hit, explode
 	hit_node = function(self, pos, node)
-		mcl_mobs:boom(self, pos, 2)
+		mcl_mobs.mob_class.boom(self,pos, 2)
 	end
 })
 
diff --git a/mods/ENTITIES/mobs_mc/ghast.lua b/mods/ENTITIES/mobs_mc/ghast.lua
index 4ff8dc2b74..0f7e73344c 100644
--- a/mods/ENTITIES/mobs_mc/ghast.lua
+++ b/mods/ENTITIES/mobs_mc/ghast.lua
@@ -118,9 +118,9 @@ mcl_mobs.register_arrow("mobs_mc:fireball", {
 		}, nil)
 		local p = self.object:get_pos()
 		if p then
-			mcl_mobs:boom(self, p, 1, true)
+			mcl_mobs.mob_class.boom(self,p, 1, true)
 		else
-			mcl_mobs:boom(self, player:get_pos(), 1, true)
+			mcl_mobs.mob_class.boom(self,player:get_pos(), 1, true)
 		end
 	end,
 
@@ -129,11 +129,11 @@ mcl_mobs.register_arrow("mobs_mc:fireball", {
 			full_punch_interval = 1.0,
 			damage_groups = {fleshy = 6},
 		}, nil)
-		mcl_mobs:boom(self, self.object:get_pos(), 1, true)
+		mcl_mobs.mob_class.boom(self,self.object:get_pos(), 1, true)
 	end,
 
 	hit_node = function(self, pos, node)
-		mcl_mobs:boom(self, pos, 1, true)
+		mcl_mobs.mob_class.boom(self,pos, 1, true)
 	end
 })
 
diff --git a/mods/ENTITIES/mobs_mc/wither.lua b/mods/ENTITIES/mobs_mc/wither.lua
index 89878b3593..dda2beafa5 100644
--- a/mods/ENTITIES/mobs_mc/wither.lua
+++ b/mods/ENTITIES/mobs_mc/wither.lua
@@ -98,7 +98,7 @@ mcl_mobs.register_arrow("mobs_mc:wither_skull", {
 			full_punch_interval = 0.5,
 			damage_groups = {fleshy = 8},
 		}, nil)
-		mcl_mobs:boom(self, self.object:get_pos(), 1)
+		mcl_mobs.mob_class.boom(self,self.object:get_pos(), 1)
 	end,
 
 	hit_mob = function(self, mob)
@@ -106,7 +106,7 @@ mcl_mobs.register_arrow("mobs_mc:wither_skull", {
 			full_punch_interval = 0.5,
 			damage_groups = {fleshy = 8},
 		}, nil)
-		mcl_mobs:boom(self, self.object:get_pos(), 1)
+		mcl_mobs.mob_class.boom(self,self.object:get_pos(), 1)
 		local l = mob:get_luaentity()
 		if l and l.health - 8 <= 0 then
 			local n = minetest.find_node_near(mob:get_pos(),2,wither_rose_soil)
@@ -123,7 +123,7 @@ mcl_mobs.register_arrow("mobs_mc:wither_skull", {
 
 	-- node hit, explode
 	hit_node = function(self, pos, node)
-		mcl_mobs:boom(self, pos, 1)
+		mcl_mobs.mob_class.boom(self,pos, 1)
 	end
 })
 -- TODO: Add blue wither skull