allow players with 'protection_bypass' to rename owned tamed mobs

api.lua

@@ -8,12 +8,12 @@ local use_cmi = minetest.global_exists("cmi")
 
 mobs = {
 	mod = "redo",
-	version = "20201029",
+	version = "20210407",
 	intllib = S,
 	invis = minetest.global_exists("invisibility") and invisibility or {}
 }
 
--- localize math functions
+-- localize common functions
 local pi = math.pi
 local square = math.sqrt
 local sin = math.sin
@@ -58,12 +58,14 @@ local mobs_drop_items = settings:get_bool("mobs_drop_items") ~= false
 local mobs_griefing = settings:get_bool("mobs_griefing") ~= false
 local spawn_protected = settings:get_bool("mobs_spawn_protected") ~= false
 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)
 local mob_chance_multiplier = tonumber(settings:get("mob_chance_multiplier") or 1)
+local peaceful_player_enabled = settings:get_bool("enable_peaceful_player")
 local active_mobs = 0
 
 
@@ -110,7 +112,9 @@ local mob_class = {
 	light_damage_min = 14,
 	light_damage_max = 15,
 	water_damage = 0,
-	lava_damage = 0,
+	lava_damage = 4,
+	fire_damage = 4,
+	air_damage = 0,
 	suffocation = 2,
 	fall_damage = 1,
 	fall_speed = -10, -- must be lower than -2 (default: -10)
@@ -161,6 +165,7 @@ local mob_class = {
 
 local mob_class_meta = {__index = mob_class}
 
+
 -- play sound
 function mob_class:mob_sound(sound)
 
@@ -248,9 +253,17 @@ local check_for = function(look_for, look_inside)
 		for _, str in pairs(look_inside) do
 
 			if str == look_for then
-
 				return true
 			end
+
+			if str:find("group:") then
+
+				local group = str:split(":")[2]
+
+				if minetest.get_item_group(look_for, group) ~= 0 then
+					return true
+				end
+			end
 		end
 	end
 
@@ -276,10 +289,10 @@ function mob_class:set_velocity(v)
 		c_x, c_y = unpack(self:collision())
 	end
 
-	local yaw = (self.object:get_yaw() or 0) + self.rotate
+	local yaw = (self.object:get_yaw() or 0) + (self.rotate or 0)
 
 	-- nil check for velocity
-	v = v or 0
+	v = v or 0.01
 
 	-- check if standing in liquid with max viscosity of 7
 	local visc = min(minetest.registered_nodes[self.standing_in].liquid_viscosity, 7)
@@ -291,8 +304,8 @@ function mob_class:set_velocity(v)
 		v = v / (visc + 1)
 	end
 
-	-- set velocity with hard limit of 10
+	-- set velocity
-	local vel = self.object:get_velocity()
+	local vel = self.object:get_velocity() or 0
 
 	local new_vel = {
 		x = (sin(yaw) * -v) + c_x,
@@ -536,12 +549,10 @@ local ray_line_of_sight = function(self, pos1, pos2)
 	return true
 end
 
--- detect if using minetest 5.0 by searching for permafrost node
-local is_50 = minetest.registered_nodes["default:permafrost"]
 
 function mob_class:line_of_sight(pos1, pos2, stepsize)
 
-	if is_50 then -- only use if minetest 5.0 is detected
+	if minetest.raycast then -- only use if minetest 5.0 is detected
 		return ray_line_of_sight(self, pos1, pos2)
 	end
 
@@ -560,7 +571,7 @@ function mob_class:attempt_flight_correction(override)
 
 	-- We are not flying in what we are supposed to.
 	-- See if we can find intended flight medium and return to it
-	local pos = self.object:get_pos()
+	local pos = self.object:get_pos() ; if not pos then return true end
 	local searchnodes = self.fly_in
 
 	if type(searchnodes) == "string" then
@@ -569,7 +580,8 @@ function mob_class:attempt_flight_correction(override)
 
 	local flyable_nodes = minetest.find_nodes_in_area(
 		{x = pos.x - 1, y = pos.y - 1, z = pos.z - 1},
-		{x = pos.x + 1, y = pos.y + 1, z = pos.z + 1}, searchnodes)
+		{x = pos.x + 1, y = pos.y + 0, z = pos.z + 1}, searchnodes)
+		-- pos.y + 0 hopefully fixes floating swimmers
 
 	if #flyable_nodes < 1 then
 		return false
@@ -828,6 +840,11 @@ end
 -- check if mob is dead or only hurt
 function mob_class:check_for_death(cmi_cause)
 
+	-- We dead already
+	if self.state == "die" then
+		return true
+	end
+
 	-- has health actually changed?
 	if self.health == self.old_health and self.health > 0 then
 		return false
@@ -877,7 +894,7 @@ function mob_class:check_for_death(cmi_cause)
 	local pos = self.object:get_pos()
 
 	-- execute custom death function
-	if self.on_die then
+	if pos and self.on_die then
 
 		self:on_die(pos)
 
@@ -897,36 +914,47 @@ function mob_class:check_for_death(cmi_cause)
 
 		local frames = self.animation.die_end - self.animation.die_start
 		local speed = self.animation.die_speed or 15
-		local length = max(frames / speed, 0)
+		local length = max((frames / speed), 0)
+		local rot = self.animation.die_rotate and 5
 
 		self.attack = nil
+		self.following = nil
 		self.v_start = false
 		self.timer = 0
 		self.blinktimer = 0
 		self.passive = true
 		self.state = "die"
+		self.object:set_properties({
+			pointable = false, collide_with_objects = false,
+			automatic_rotate = rot, static_save = false
+		})
 		self:set_velocity(0)
 		self:set_animation("die")
 
 		minetest.after(length, function(self)
 
-			if use_cmi and self.object:get_luaentity() then
+			if self.object:get_luaentity() then
-				cmi.notify_die(self.object, cmi_cause)
+
+				if use_cmi then
+					cmi.notify_die(self.object, cmi_cause)
+				end
+
+				remove_mob(self, true)
 			end
-
-			remove_mob(self, true)
-
 		end, self)
-	else
+
+		return true
+
+	elseif pos then -- otherwise remove mod and show particle effect
 
 		if use_cmi then
 			cmi.notify_die(self.object, cmi_cause)
 		end
 
 		remove_mob(self, true)
-	end
 
-	effect(pos, 20, "tnt_smoke.png")
+		effect(pos, 20, "tnt_smoke.png")
+	end
 
 	return true
 end
@@ -956,7 +984,12 @@ local is_node_dangerous = function(self, nodename)
 	end
 
 	if self.lava_damage > 0
-	and minetest.get_item_group(nodename, "igniter") ~= 0 then
+	and minetest.get_item_group(nodename, "lava") ~= 0 then
+		return true
+	end
+
+	if self.fire_damage > 0
+	and minetest.get_item_group(nodename, "fire") ~= 0 then
 		return true
 	end
 
@@ -1042,37 +1075,47 @@ function mob_class:do_env_damage()
 	local nodef = minetest.registered_nodes[self.standing_in]
 
 	-- water
-	if self.water_damage and nodef.groups.water then
+	if self.water_damage ~= 0
+	and nodef.groups.water then
 
-		if self.water_damage ~= 0 then
+		self.health = self.health - self.water_damage
 
-			self.health = self.health - self.water_damage
+		effect(pos, 5, "bubble.png", nil, nil, 1, nil)
 
-			effect(pos, 5, "bubble.png", nil, nil, 1, nil)
+		if self:check_for_death({type = "environment",
-
+				pos = pos, node = self.standing_in}) then
-			if self:check_for_death({type = "environment",
+			return true
-					pos = pos, node = self.standing_in}) then
-				return true
-			end
 		end
 
-	-- ignition source (fire or lava)
+	-- lava damage
-	elseif self.lava_damage and nodef.groups.igniter then
+	elseif self.lava_damage ~= 0
+	and nodef.groups.lava  then
 
-		if self.lava_damage ~= 0 then
+		self.health = self.health - self.lava_damage
 
-			self.health = self.health - self.lava_damage
+		effect(pos, 15, "fire_basic_flame.png", 1, 5, 1, 0.2, 15, true)
 
-			effect(pos, 15, "fire_basic_flame.png", 1, 5, 1, 0.2, 15, true)
+		if self:check_for_death({type = "environment", pos = pos,
-
+				node = self.standing_in, hot = true}) then
-			if self:check_for_death({type = "environment", pos = pos,
+			return true
-					node = self.standing_in, hot = true}) then
-				return true
-			end
 		end
 
-	-- damage_per_second node check
+	-- fire damage
-	elseif nodef.damage_per_second ~= 0 then
+	elseif self.fire_damage ~= 0
+	and nodef.groups.fire then
+
+		self.health = self.health - self.fire_damage
+
+		effect(pos, 15, "fire_basic_flame.png", 1, 5, 1, 0.2, 15, true)
+
+		if self:check_for_death({type = "environment", pos = pos,
+				node = self.standing_in, hot = true}) then
+			return true
+		end
+
+	-- damage_per_second node check (not fire and lava)
+	elseif nodef.damage_per_second ~= 0
+	and nodef.groups.lava == 0 and nodef.groups.fire == 0 then
 
 		self.health = self.health - nodef.damage_per_second
 
@@ -1084,6 +1127,19 @@ function mob_class:do_env_damage()
 		end
 	end
 
+	-- air damage
+	if self.air_damage ~= 0 and self.standing_in == "air" then
+
+		self.health = self.health - self.air_damage
+
+		effect(pos, 3, "bubble.png", 1, 1, 1, 0.2)
+
+		if self:check_for_death({type = "environment",
+				pos = pos, node = self.standing_in}) then
+			return true
+		end
+	end
+
 	-- is mob light sensative, or scared of the dark :P
 	if self.light_damage ~= 0 then
 
@@ -1273,10 +1329,19 @@ local entity_physics = function(pos, radius)
 end
 
 
+-- can mob see player
+local is_invisible = function(self, player_name)
+
+	if mobs.invis[player_name] and not self.ignore_invisibility then
+		return true
+	end
+end
+
+
 -- should mob follow what I'm holding ?
 function mob_class:follow_holding(clicker)
 
-	if mobs.invis[clicker:get_player_name()] then
+	if is_invisible(self, clicker:get_player_name()) then
 		return false
 	end
 
@@ -1290,16 +1355,20 @@ function mob_class:follow_holding(clicker)
 	return false
 end
 
+-- Thanks Wuzzy for the following editable settings
+local HORNY_TIME = 30
+local HORNY_AGAIN_TIME = 300
+local CHILD_GROW_TIME = 60 * 20 -- 20 minutes
 
 -- find two animals of same type and breed if nearby and horny
 function mob_class:breed()
 
-	-- child takes 240 seconds before growing into adult
+	-- child takes a long time before growing into adult
 	if self.child == true then
 
 		self.hornytimer = self.hornytimer + 1
 
-		if self.hornytimer > 240 then
+		if self.hornytimer > CHILD_GROW_TIME then
 
 			self.child = false
 			self.hornytimer = 0
@@ -1317,25 +1386,29 @@ function mob_class:breed()
 				self.on_grown(self)
 			else
 				-- jump when fully grown so as not to fall into ground
-				self.object:set_velocity({
+--				self.object:set_velocity({
-					x = 0,
+--					x = 0,
-					y = self.jump_height,
+--					y = self.jump_height,
-					z = 0
+--					z = 0
-				})
+--				})
+				local pos = self.object:get_pos() ; if not pos then return end
+				local ent = self.object:get_luaentity()
+				pos.y = pos.y + (ent.collisionbox[2] * -1) - 0.4
+				self.object:set_pos(pos)
 			end
 		end
 
 		return
 	end
 
-	-- horny animal can mate for 40 seconds,
+	-- horny animal can mate for HORNY_TIME seconds,
-	-- afterwards horny animal cannot mate again for 200 seconds
+	-- afterwards horny animal cannot mate again for HORNY_AGAIN_TIME seconds
 	if self.horny == true
-	and self.hornytimer < 240 then
+	and self.hornytimer < HORNY_TIME + HORNY_AGAIN_TIME then
 
 		self.hornytimer = self.hornytimer + 1
 
-		if self.hornytimer >= 240 then
+		if self.hornytimer >= HORNY_TIME + HORNY_AGAIN_TIME then
 			self.hornytimer = 0
 			self.horny = false
 		end
@@ -1343,7 +1416,7 @@ function mob_class:breed()
 
 	-- find another same animal who is also horny and mate if nearby
 	if self.horny == true
-	and self.hornytimer <= 40 then
+	and self.hornytimer <= HORNY_TIME then
 
 		local pos = self.object:get_pos()
 
@@ -1351,7 +1424,6 @@ function mob_class:breed()
 				"heart.png", 3, 4, 1, 0.1)
 
 		local objs = minetest.get_objects_inside_radius(pos, 3)
-		local num = 0
 		local ent
 
 		for n = 1, #objs do
@@ -1380,18 +1452,20 @@ function mob_class:breed()
 				end
 			end
 
-			if ent
+			-- found another similar horny animal that isn't self?
+			if ent and ent.object ~= self.object
 			and canmate == true
 			and ent.horny == true
-			and ent.hornytimer <= 40 then
+			and ent.hornytimer <= HORNY_TIME then
-				num = num + 1
-			end
 
-			-- found your mate? then have a baby
+				local pos2 = ent.object:get_pos()
-			if num > 1 then
 
-				self.hornytimer = 41
+				-- Have mobs face one another
-				ent.hornytimer = 41
+				yaw_to_pos(self, pos2)
+				yaw_to_pos(ent, self.object:get_pos())
+
+				self.hornytimer = HORNY_TIME + 1
+				ent.hornytimer = HORNY_TIME + 1
 
 				-- have we reached active mob limit
 				if active_limit > 0 and active_mobs >= active_limit then
@@ -1420,6 +1494,8 @@ function mob_class:breed()
 						effect(pos, 15, "tnt_smoke.png", 1, 2, 2, 15, 5)
 					end
 
+					pos.y = pos.y + 0.5 -- spawn child a little higher
+
 					local mob = minetest.add_entity(pos, self.name)
 					local ent2 = mob:get_luaentity()
 					local textures = self.base_texture
@@ -1459,8 +1535,6 @@ function mob_class:breed()
 					ent2.owner = self.owner
 				end, self, ent)
 
-				num = 0
-
 				break
 			end
 		end
@@ -1815,6 +1889,23 @@ function mob_class:smart_mobs(s, p, dist, dtime)
 end
 
 
+-- peaceful player privilege support
+local function is_peaceful_player(player)
+
+	if peaceful_player_enabled then
+
+		local player_name = player:get_player_name()
+
+		if player_name
+		and minetest.check_player_privs(player_name, "peaceful_player") then
+			return true
+		end
+	end
+
+	return false
+end
+
+
 -- general attack function for all mobs
 function mob_class:general_attack()
 
@@ -1841,7 +1932,7 @@ function mob_class:general_attack()
 			if not damage_enabled
 			or self.attack_players == false
 			or (self.owner and self.type ~= "monster")
-			or mobs.invis[objs[n]:get_player_name()]
+			or is_invisible(self, objs[n]:get_player_name())
 			or (self.specific_attack
 					and not check_for("player", self.specific_attack)) then
 				objs[n] = nil
@@ -1887,7 +1978,8 @@ function mob_class:general_attack()
 		-- choose closest player to attack that isnt self
 		if dist ~= 0
 		and dist < min_dist
-		and self:line_of_sight(sp, p, 2) == true then
+		and self:line_of_sight(sp, p, 2) == true
+		and not is_peaceful_player(player) then
 			min_dist = dist
 			min_player = player
 		end
@@ -1919,7 +2011,7 @@ function mob_class:do_runaway_from()
 
 			pname = objs[n]:get_player_name()
 
-			if mobs.invis[pname]
+			if is_invisible(self, pname)
 			or self.owner == pname then
 
 				name = ""
@@ -1984,7 +2076,7 @@ function mob_class:follow_flop()
 		for n = 1, #players do
 
 			if get_distance(players[n]:get_pos(), s) < self.view_range
-			and not mobs.invis[ players[n]:get_player_name() ] then
+			and not is_invisible(self, players[n]:get_player_name()) then
 
 				self.following = players[n]
 
@@ -2005,10 +2097,11 @@ function mob_class:follow_flop()
 			self.following = nil
 		end
 	else
-		-- stop following player if not holding specific item
+		-- stop following player if not holding specific item or mob is horny
 		if self.following
 		and self.following:is_player()
-		and self:follow_holding(self.following) == false then
+		and (self:follow_holding(self.following) == false
+		or self.horny) then
 			self.following = nil
 		end
 
@@ -2064,6 +2157,15 @@ function mob_class:follow_flop()
 		if not self:attempt_flight_correction() then
 
 			self.state = "flop"
+
+			-- do we have a custom on_flop function?
+			if self.on_flop then
+
+				if self:on_flop(self) then
+					return
+				end
+			end
+
 			self.object:set_velocity({x = 0, y = -5, z = 0})
 
 			self:set_animation("stand")
@@ -2272,7 +2374,7 @@ function mob_class:do_states(dtime)
 		or not self.attack:get_pos()
 		or self.attack:get_hp() <= 0
 		or (self.attack:is_player()
-		and mobs.invis[ self.attack:get_player_name() ]) then
+		and is_invisible(self, self.attack:get_player_name())) then
 
 --print(" ** stop attacking **", dist, self.view_range)
 
@@ -2620,34 +2722,17 @@ function mob_class:falling(pos)
 	-- sanity check
 	if not v then return end
 
-	local fall_speed = -10 -- gravity
+	local fall_speed = self.fall_speed
-
-	-- don't exceed mob fall speed
-	if v.y < self.fall_speed then
-		fall_speed = self.fall_speed
-	end
 
 	-- in water then use liquid viscosity for float/sink speed
-	if (self.standing_in
+	if self.floats == 1 and self.standing_in
-	and minetest.registered_nodes[self.standing_in].groups.liquid)
+	and minetest.registered_nodes[self.standing_in].groups.liquid then
-	or (self.standing_on
-	and minetest.registered_nodes[self.standing_in].groups.liquid) then
 
 		local visc = min(
-				minetest.registered_nodes[self.standing_in].liquid_viscosity, 7)
+				minetest.registered_nodes[self.standing_in].liquid_viscosity, 7) + 1
 
-		if self.floats == 1 then
+		self.object:set_velocity({x = v.x, y = 0.6, z = v.z})
-
+		fall_speed = -1.2 / visc
-			-- floating up
-			if visc > 0 then
-				fall_speed = max(1, v.y) / (visc + 1)
-			end
-		else
-			-- sinking down
-			if visc > 0 then
-				fall_speed = -(max(1, v.y) / (visc + 1))
-			end
-		end
 	else
 
 		-- fall damage onto solid ground
@@ -2704,15 +2789,37 @@ function mob_class:on_punch(hitter, tflp, tool_capabilities, dir, damage)
 		return true
 	end
 
-	-- is mob protected?
+	-- is mob protected
-	if self.protected and hitter:is_player()
+	if self.protected then
-	and minetest.is_protected(self.object:get_pos(),
-			hitter:get_player_name()) then
 
-		minetest.chat_send_player(hitter:get_player_name(),
+		-- did player hit mob and if so is it in protected area
-				S("Mob has been protected!"))
+		if hitter:is_player() then
 
-		return true
+			local player_name = hitter:get_player_name()
+
+			if player_name ~= self.owner
+			and minetest.is_protected(self.object:get_pos(), player_name) then
+
+				minetest.chat_send_player(hitter:get_player_name(),
+						S("Mob has been protected!"))
+
+				return true
+			end
+
+		-- if protection is on level 2 then dont let arrows harm mobs
+		elseif self.protected == 2 then
+
+			local ent = hitter and hitter:get_luaentity()
+
+			if ent and ent._is_arrow then
+
+				return true -- arrow entity
+
+			elseif not ent then
+
+				return true -- non entity
+			end
+		end
 	end
 
 	local weapon = hitter:get_wielded_item()
@@ -2744,7 +2851,7 @@ function mob_class:on_punch(hitter, tflp, tool_capabilities, dir, damage)
 			end
 
 			damage = damage + (tool_capabilities.damage_groups[group] or 0)
-				* tmp * ((armor[group] or 0) / 100.0)
+					* tmp * ((armor[group] or 0) / 100.0)
 		end
 	end
 
@@ -2924,7 +3031,7 @@ function mob_class:on_punch(hitter, tflp, tool_capabilities, dir, damage)
 	and self.child == false
 	and self.attack_players == true
 	and hitter:get_player_name() ~= self.owner
-	and not mobs.invis[ name ]
+	and not is_invisible(self, name)
 	and self.object ~= hitter then
 
 		-- attack whoever punched mob
@@ -3011,6 +3118,7 @@ function mob_class:mob_staticdata()
 		if  t ~= "function"
 		and t ~= "nil"
 		and t ~= "userdata"
+		and _ ~= "object"
 		and _ ~= "_cmi_components" then
 			tmp[_] = self[_]
 		end
@@ -3080,8 +3188,7 @@ function mob_class:mob_activate(staticdata, def, dtime)
 			def.textures = {def.textures}
 		end
 
-		self.base_texture = def.textures and
+		self.base_texture = def.textures and def.textures[random(#def.textures)]
-				def.textures[random(#def.textures)]
 		self.base_mesh = def.mesh
 		self.base_size = self.visual_size
 		self.base_colbox = self.collisionbox
@@ -3263,6 +3370,8 @@ function mob_class:on_step(dtime, moveresult)
             }}
     }]]
 
+if self.state == "die" then return end ----------------
+
 	if use_cmi then
 		cmi.notify_step(self.object, dtime)
 	end
@@ -3462,6 +3571,7 @@ minetest.register_entity(name, setmetatable({
 	owner = def.owner,
 	order = def.order,
 	on_die = def.on_die,
+	on_flop = def.on_flop,
 	do_custom = def.do_custom,
 	jump_height = def.jump_height,
 	drawtype = def.drawtype, -- DEPRECATED, use rotate instead
@@ -3485,6 +3595,8 @@ minetest.register_entity(name, setmetatable({
 	light_damage_max = def.light_damage_max,
 	water_damage = def.water_damage,
 	lava_damage = def.lava_damage,
+	fire_damage = def.fire_damage,
+	air_damage = def.air_damage,
 	suffocation = def.suffocation,
 	fall_damage = def.fall_damage,
 	fall_speed = def.fall_speed,
@@ -3542,6 +3654,7 @@ minetest.register_entity(name, setmetatable({
 	pushable = def.pushable,
 	stay_near = def.stay_near,
 	randomly_turn = def.randomly_turn ~= false,
+	ignore_invisibility = def.ignore_invisibility,
 
 	on_spawn = def.on_spawn,
 
@@ -3636,9 +3749,6 @@ local can_spawn = function(pos, name)
 	end
 	end
 
-	-- spawn mob 1/2 node above ground
-	pos.y = pos.y + 0.5
-
 	-- tweak X/Z spawn pos
 	if width_x % 2 == 0 then
 		pos.x = pos.x + 0.5
@@ -3903,11 +4013,33 @@ function mobs:spawn_specific(name, nodes, neighbors, min_light, max_light, inter
 			end
 		end
 
-		-- returns position if we have enough space to spawn mob
+		local ent = minetest.registered_entities[name]
-		pos = can_spawn(pos, name)
+
+		-- should we check mob area for obstructions ?
+		if mob_area_spawn ~= true then
+
+			-- do we have enough height clearance to spawn mob?
+			local height = max(0, ent.collisionbox[5] - ent.collisionbox[2])
+
+			for n = 0, floor(height) do
+
+				local pos2 = {x = pos.x, y = pos.y + n, z = pos.z}
+
+				if minetest.registered_nodes[node_ok(pos2).name].walkable == true then
+--print ("--- inside block", name, node_ok(pos2).name)
+					return
+				end
+			end
+		else
+			-- returns position if we have enough space to spawn mob
+			pos = can_spawn(pos, name)
+		end
 
 		if pos then
 
+			-- adjust for mob collision box
+			pos.y = pos.y + (ent.collisionbox[2] * -1) - 0.4
+
 			local mob = minetest.add_entity(pos, name)
 
 --		print("[mobs] Spawned " .. name .. " at "
@@ -4367,8 +4499,9 @@ function mobs:capture_mob(self, clicker, chance_hand, chance_net,
 		return false
 	end
 
-	-- cannot pick up if not owner
+	-- cannot pick up if not owner (unless player has protection_bypass priv)
-	if self.owner ~= name and force_take == false then
+	if not minetest.check_player_privs(name, "protection_bypass")
+	and self.owner ~= name and force_take == false then
 
 		minetest.chat_send_player(name, S("@1 is owner!", self.owner))
 
@@ -4439,10 +4572,10 @@ function mobs:capture_mob(self, clicker, chance_hand, chance_net,
 				minetest.add_item(clicker:get_pos(), new_stack)
 			end
 
-			remove_mob(self, true)
-
 			self:mob_sound("default_place_node_hard")
 
+			remove_mob(self, true)
+
 			return new_stack
 
 		-- when chance above fails or set to 0, miss!
@@ -4469,19 +4602,21 @@ function mobs:protect(self, clicker)
 
 	local name = clicker:get_player_name()
 	local tool = clicker:get_wielded_item()
+	local tool_name = tool:get_name()
 
-	if tool:get_name() ~= "mobs:protector" then
+	if tool_name ~= "mobs:protector"
+	and tool_name ~= "mobs:protector2" then
 		return false
 	end
 
-	if self.tamed == false then
+	if not self.tamed then
 		minetest.chat_send_player(name, S("Not tamed!"))
-		return true -- false
+		return true
 	end
 
-	if self.protected == true then
+	if self.protected then
 		minetest.chat_send_player(name, S("Already protected!"))
-		return true -- false
+		return true
 	end
 
 	if not mobs.is_creative(clicker:get_player_name()) then
@@ -4489,9 +4624,15 @@ function mobs:protect(self, clicker)
 		clicker:set_wielded_item(tool)
 	end
 
-	self.protected = true
+	-- set protection level
+	if tool_name == "mobs:protector" then
+		self.protected = true
+	else
+		self.protected = 2 ; self.fire_damage = 0
+	end
 
 	local pos = self.object:get_pos()
+
 	pos.y = pos.y + self.collisionbox[2] + 0.5
 
 	effect(self.object:get_pos(), 25, "mobs_protect_particle.png",
@@ -4547,8 +4688,11 @@ function mobs:feed_tame(self, clicker, feed_count, breed, tame)
 		-- make children grow quicker
 		if self.child == true then
 
-			self.hornytimer = self.hornytimer + 20
+--			self.hornytimer = self.hornytimer + 20
-
+			-- deduct 10% of the time to adulthood
+			self.hornytimer = self.hornytimer + (
+					(CHILD_GROW_TIME - self.hornytimer) * 0.1)
+--print ("====", self.hornytimer)
 			return true
 		end
 
@@ -4586,12 +4730,12 @@ function mobs:feed_tame(self, clicker, feed_count, breed, tame)
 	end
 
 	local item = clicker:get_wielded_item()
+	local name = clicker:get_player_name()
 
 	-- if mob has been tamed you can name it with a nametag
 	if item:get_name() == "mobs:nametag"
-	and clicker:get_player_name() == self.owner then
+	and (name == self.owner
-
+	or minetest.check_player_privs(name, "protection_bypass")) then
-		local name = clicker:get_player_name()
 
 		-- store mob and nametag stack in external variables
 		mob_obj[name] = self

api.txt

@@ -64,8 +64,12 @@ functions needed for the mob to work properly which contains the following:
    'fall_damage'   when true causes falling to inflict damage.
    'water_damage'  holds the damage per second infliced to mobs when standing in
                    water.
+   'air_damage'    holds damage per second inflicted to mob when standing in air.
    'lava_damage'   holds the damage per second inflicted to mobs when standing
-                   in lava or fire or an ignition source.
+                   in lava.
+   'fire_damage'   holds the damage per second inflicted to mobs when standing
+                   in fire.
+
    'light_damage'  holds the damage per second inflicted to mobs when light
                    level is between the min and max values below
    'light_damage_min' minimum light value when mob is affected (default: 14)
@@ -75,7 +79,7 @@ functions needed for the mob to work properly which contains the following:
    'floats'        when set to 1 mob will float in water, 0 has them sink.
    'follow'        mobs follow player when holding any of the items which appear
                    on this table, the same items can be fed to a mob to tame or
-                   breed e.g. {"farming:wheat", "default:apple"}
+                   breed e.g. {"farming:wheat", "default:apple", "group:fish"}
 
    'reach'               is how far the mob can attack player when standing
                          nearby, default is 3 nodes.
@@ -130,6 +134,8 @@ functions needed for the mob to work properly which contains the following:
                          e.g. {"player", "mobs_animal:chicken"}.
    'runaway_from'        contains a table with mob names to run away from, add
                          "player" to list to runaway from player also.
+   'ignore_invisibility' When true mob will still be able to see and attack
+                         player even if invisible (invisibility mod only).
    'blood_amount'        contains the number of blood droplets to appear when
                          mob is hit.
    'blood_texture'       has the texture name to use for droplets e.g.
@@ -226,6 +232,7 @@ functions needed for the mob to work properly which contains the following:
       'die_end'
       'die_speed'
       'die_loop'     when set to false stops the animation looping.
+      'die_rotate'   if true mob spins during death animation.
 
       Using '_loop = false' setting will stop any of the above animations from
       looping.
@@ -298,6 +305,9 @@ enhance mob functionality and have them do many interesting things:
                     is returned normal attack function continued.
    'on_die'         a function that is called when mob is killed (self, pos), also
                     has access to self.cause_of_death table.
+   'on_flop'        function called when flying or swimmimng mob is no longer in
+                    air/water, (self) paramater and return true to skip the built
+                    in api flop feature.
    'do_custom'      a custom function that is called every tick while mob is
                     active and which has access to all of the self.* variables
                     e.g. (self.health for health or self.standing_in for node
@@ -329,6 +339,14 @@ for each mob.
    'self.order'         set to "follow" or "stand" so that npc will follow owner
                         or stand it's ground
    'self.nametag'       contains the name of the mob which it can show above
+   'self.state'         Current mob state.
+                        "stand": no movement (except turning around)
+                        "walk": walk or move around aimlessly
+                        "attack": chase and attack enemy
+                        "runaway": flee from target
+                        "flop": bounce around aimlessly
+                                (for swimming mobs that have stranded)
+                        "die": during death
 
 
 Adding Mobs in World
@@ -697,6 +715,9 @@ External Settings for "minetest.conf"
                             function.
    'mob_nospawn_range'      Minimum range a mob can spawn near player (def: 12)
    'mob_active_limit'       Number of active mobs in game, 0 for unlimited
+   'mob_area_spawn'         When true will check surrounding area the size of the
+                            mob for obstructions before spawning, otherwise it
+                            defaults to checking the height of the mob only.
 
 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

crafts.lua

@@ -5,7 +5,7 @@ local S = mobs.intllib
 minetest.register_craftitem("mobs:nametag", {
 	description = S("Name Tag"),
 	inventory_image = "mobs_nametag.png",
-	groups = {flammable = 2}
+	groups = {flammable = 2, nametag = 1}
 })
 
 if minetest.get_modpath("dye") and minetest.get_modpath("farming") then
@@ -20,7 +20,7 @@ end
 minetest.register_craftitem("mobs:leather", {
 	description = S("Leather"),
 	inventory_image = "mobs_leather.png",
-	groups = {flammable = 2}
+	groups = {flammable = 2, leather = 1}
 })
 
 -- raw meat
@@ -115,11 +115,27 @@ minetest.register_craft({
 	}
 })
 
+-- level 2 protection rune
+minetest.register_craftitem("mobs:protector2", {
+	description = S("Mob Protection Rune (Level 2)"),
+	inventory_image = "mobs_protector2.png",
+	groups = {flammable = 2}
+})
+
+minetest.register_craft({
+	output = "mobs:protector2",
+	recipe = {
+		{"mobs:protector", "default:mese_crystal", "mobs:protector"},
+		{"default:mese_crystal", "default:diamondblock", "default:mese_crystal"},
+		{"mobs:protector", "default:mese_crystal", "mobs:protector"}
+	}
+})
+
 -- saddle
 minetest.register_craftitem("mobs:saddle", {
 	description = S("Saddle"),
 	inventory_image = "mobs_saddle.png",
-	groups = {flammable = 2}
+	groups = {flammable = 2, saddle = 1}
 })
 
 minetest.register_craft({

init.lua

@@ -1,6 +1,12 @@
 
 local path = minetest.get_modpath("mobs")
 
+-- Peaceful player privilege
+minetest.register_privilege("peaceful_player", {
+	description = "Prevents Mobs Redo mobs from attacking player",
+	give_to_singleplayer = false
+})
+
 -- Mob API
 dofile(path .. "/api.lua")
 

mod.conf

@@ -1 +1,4 @@
 name = mobs
+depends = default
+optional_depends = tnt, dye, farming, invisibility, intllib, lucky_block, cmi, toolranks
+description = Adds a mob api for mods to add animals or monsters etc.

mount.lua

@@ -1,9 +1,7 @@
-
 -- lib_mount by Blert2112 (edited by TenPlus1)
 
-local enable_crash = false
+local abs, cos, floor, sin, sqrt, pi =
-local crash_threshold = 6.5 -- ignored if enable_crash=false
+		math.abs, math.cos, math.floor, math.sin, math.sqrt, math.pi
-
 ------------------------------------------------------------------------------
 
 --
@@ -11,7 +9,6 @@ local crash_threshold = 6.5 -- ignored if enable_crash=false
 --
 
 local node_ok = function(pos, fallback)
-
 	fallback = fallback or mobs.fallback_node
 
 	local node = minetest.get_node_or_nil(pos)
@@ -25,7 +22,6 @@ end
 
 
 local function node_is(pos)
-
 	local node = node_ok(pos)
 
 	if node.name == "air" then
@@ -49,33 +45,30 @@ end
 
 
 local function get_sign(i)
-
 	i = i or 0
 
 	if i == 0 then
 		return 0
 	else
-		return i / math.abs(i)
+		return i / abs(i)
 	end
 end
 
 
 local function get_velocity(v, yaw, y)
-
+	local x = -sin(yaw) * v
-	local x = -math.sin(yaw) * v
+	local z =  cos(yaw) * v
-	local z =  math.cos(yaw) * v
 
 	return {x = x, y = y, z = z}
 end
 
 
 local function get_v(v)
-	return math.sqrt(v.x * v.x + v.z * v.z)
+	return sqrt(v.x * v.x + v.z * v.z)
 end
 
 
 local function force_detach(player)
-
 	local attached_to = player:get_attach()
 
 	if not attached_to then
@@ -86,21 +79,19 @@ local function force_detach(player)
 
 	if entity and entity.driver
 	and entity.driver == player then
-
 		entity.driver = nil
 	end
 
 	player:set_detach()
-	default.player_attached[player:get_player_name()] = false
+	player_api.player_attached[player:get_player_name()] = false
 	player:set_eye_offset({x = 0, y = 0, z = 0}, {x = 0, y = 0, z = 0})
-	default.player_set_animation(player, "stand" , 30)
+	player_api.set_animation(player, "stand", 30)
-	player:set_properties({visual_size = {x = 1, y = 1} })
+	player:set_properties({visual_size = {x = 1, y = 1}})
 
 end
 
 -------------------------------------------------------------------------------
 
-
 minetest.register_on_leaveplayer(function(player)
 	force_detach(player)
 end)
@@ -119,10 +110,37 @@ end)
 
 -------------------------------------------------------------------------------
 
+-- Just for correct detaching
+local function find_free_pos(pos)
+	local check = {
+		{x = 1,  y = 0, z =  0},
+		{x = 1,  y = 1, z =  0},
+		{x = -1, y = 0, z =  0},
+		{x = -1, y = 1, z =  0},
+		{x = 0,  y = 0, z =  1},
+		{x = 0,  y = 1, z =  1},
+		{x = 0,  y = 0, z = -1},
+		{x = 0,  y = 1, z = -1}
+	}
+
+	for _, c in pairs(check) do
+		local npos = {x = pos.x + c.x, y = pos.y + c.y, z = pos.z + c.z}
+		local node = minetest.get_node_or_nil(npos)
+		if node and node.name then
+			local def = minetest.registered_nodes[node.name]
+			if def and not def.walkable and
+					def.liquidtype == "none" then
+				return npos
+			end
+		end
+	end
+
+	return pos
+end
+
+-------------------------------------------------------------------------------
+
 function mobs.attach(entity, player)
-
-	local attach_at, eye_offset = {}, {}
-
 	entity.player_rotation = entity.player_rotation or {x = 0, y = 0, z = 0}
 	entity.driver_attach_at = entity.driver_attach_at or {x = 0, y = 0, z = 0}
 	entity.driver_eye_offset = entity.driver_eye_offset or {x = 0, y = 0, z = 0}
@@ -131,17 +149,17 @@ function mobs.attach(entity, player)
 	local rot_view = 0
 
 	if entity.player_rotation.y == 90 then
-		rot_view = math.pi / 2
+		rot_view = pi / 2
 	end
 
-	attach_at = entity.driver_attach_at
+	local attach_at = entity.driver_attach_at
-	eye_offset = entity.driver_eye_offset
+	local eye_offset = entity.driver_eye_offset
 	entity.driver = player
 
 	force_detach(player)
 
 	player:set_attach(entity.object, "", attach_at, entity.player_rotation)
-	default.player_attached[player:get_player_name()] = true
+	player_api.player_attached[player:get_player_name()] = true
 	player:set_eye_offset(eye_offset, {x = 0, y = 0, z = 0})
 
 	player:set_properties({
@@ -151,46 +169,36 @@ function mobs.attach(entity, player)
 		}
 	})
 
-	minetest.after(0.2, function(name)
+	minetest.after(0.2, function()
-		local player = minetest.get_player_by_name(name)
+		if player and player:is_player() then
-		if player then
+			player_api.set_animation(player, "sit", 30)
-			default.player_set_animation(player, "sit" , 30)
 		end
-	end, player:get_player_name())
+	end)
 
 	player:set_look_horizontal(entity.object:get_yaw() - rot_view)
 end
 
 
-function mobs.detach(player, offset)
+function mobs.detach(player)
-
 	force_detach(player)
 
-	default.player_set_animation(player, "stand" , 30)
+	minetest.after(0.1, function()
-
+		if player and player:is_player() then
-	local pos = player:get_pos()
+			local pos = find_free_pos(player:get_pos())
-
+			pos.y = pos.y + 0.5
-	pos = {
-		x = pos.x + offset.x,
-		y = pos.y + 0.2 + offset.y,
-		z = pos.z + offset.z
-	}
-
-	minetest.after(0.1, function(name, pos)
-		local player = minetest.get_player_by_name(name)
-		if player then
 			player:set_pos(pos)
 		end
-	end, player:get_player_name(), pos)
+	end)
 end
 
 
 function mobs.drive(entity, moving_anim, stand_anim, can_fly, dtime)
+	local yaw = entity.object:get_yaw() or 0
 
-	local rot_steer, rot_view = math.pi/2, 0
+	local rot_view = 0
 
 	if entity.player_rotation.y == 90 then
-		rot_steer, rot_view = 0, math.pi/2
+		rot_view = pi / 2
 	end
 
 	local acce_y = 0
@@ -200,19 +208,14 @@ function mobs.drive(entity, moving_anim, stand_anim, can_fly, dtime)
 
 	-- process controls
 	if entity.driver then
-
---print ("---velo", get_v(velo))
-
 		local ctrl = entity.driver:get_player_control()
 
 		-- move forwards
 		if ctrl.up then
-
 			entity.v = entity.v + entity.accel / 10
 
 		-- move backwards
 		elseif ctrl.down then
-
 			if entity.max_speed_reverse == 0 and entity.v == 0 then
 				return
 			end
@@ -220,12 +223,24 @@ function mobs.drive(entity, moving_anim, stand_anim, can_fly, dtime)
 			entity.v = entity.v - entity.accel / 10
 		end
 
-		-- fix mob rotation
+		-- mob rotation
-		local horz = entity.driver:get_look_horizontal() or 0
+		local horz
+		if entity.alt_turn == true then
+			horz = yaw
+
+			if ctrl.left then
+				horz = horz + 0.05
+
+			elseif ctrl.right then
+				horz = horz - 0.05
+			end
+		else
+			horz = entity.driver:get_look_horizontal() or 0
+		end
+
 		entity.object:set_yaw(horz - entity.rotate)
 
 		if can_fly then
-
 			-- fly up
 			if ctrl.jump then
 				velo.y = velo.y + 1
@@ -245,9 +260,7 @@ function mobs.drive(entity, moving_anim, stand_anim, can_fly, dtime)
 				velo.y = velo.y + 0.1
 				if velo.y > 0 then velo.y = 0 end
 			end
-
 		else
-
 			-- jump
 			if ctrl.jump then
 
@@ -261,7 +274,6 @@ function mobs.drive(entity, moving_anim, stand_anim, can_fly, dtime)
 
 	-- if not moving then set animation and return
 	if entity.v == 0 and velo.x == 0 and velo.y == 0 and velo.z == 0 then
-
 		if stand_anim then
 			mobs:set_animation(entity, stand_anim)
 		end
@@ -280,7 +292,6 @@ function mobs.drive(entity, moving_anim, stand_anim, can_fly, dtime)
 	entity.v = entity.v - 0.02 * s
 
 	if s ~= get_sign(entity.v) then
-
 		entity.object:set_velocity({x = 0, y = 0, z = 0})
 		entity.v = 0
 		return
@@ -293,14 +304,15 @@ function mobs.drive(entity, moving_anim, stand_anim, can_fly, dtime)
 		max_spd = entity.max_speed_forward
 	end
 
-	if math.abs(entity.v) > max_spd then
+	if abs(entity.v) > max_spd then
 		entity.v = entity.v - get_sign(entity.v)
 	end
 
 	-- Set position, velocity and acceleration
 	local p = entity.object:get_pos()
-	local new_velo
+	if not p then return end
-	local new_acce = {x = 0, y = -9.8, z = 0}
+
+	local new_acce = {x = 0, y = -9.81, z = 0}
 
 	p.y = p.y - 0.5
 
@@ -308,23 +320,18 @@ function mobs.drive(entity, moving_anim, stand_anim, can_fly, dtime)
 	local v = entity.v
 
 	if ni == "air" then
-
 		if can_fly == true then
 			new_acce.y = 0
 		end
-
 	elseif ni == "liquid" or ni == "lava" then
-
 		if ni == "lava" and entity.lava_damage ~= 0 then
-
 			entity.lava_counter = (entity.lava_counter or 0) + dtime
 
 			if entity.lava_counter > 1 then
-
 				minetest.sound_play("default_punch", {
 					object = entity.object,
 					max_hear_distance = 5
-				}, true)
+				})
 
 				entity.object:punch(entity.object, 1.0, {
 					full_punch_interval = 1.0,
@@ -335,14 +342,12 @@ function mobs.drive(entity, moving_anim, stand_anim, can_fly, dtime)
 			end
 		end
 
-		if entity.terrain_type == 2
+		local terrain_type = entity.terrain_type
-		or entity.terrain_type == 3 then
+		if terrain_type == 2 or terrain_type == 3 then
-
 			new_acce.y = 0
 			p.y = p.y + 1
 
 			if node_is(p) == "liquid" then
-
 				if velo.y >= 5 then
 					velo.y = 5
 				elseif velo.y < 0 then
@@ -351,9 +356,11 @@ function mobs.drive(entity, moving_anim, stand_anim, can_fly, dtime)
 					new_acce.y = 5
 				end
 			else
-				if math.abs(velo.y) < 1 then
+				if abs(velo.y) < 1 then
 					local pos = entity.object:get_pos()
-					pos.y = math.floor(pos.y) + 0.5
+					if not pos then return end
+
+					pos.y = floor(pos.y) + 0.5
 					entity.object:set_pos(pos)
 					velo.y = 0
 				end
@@ -363,46 +370,22 @@ function mobs.drive(entity, moving_anim, stand_anim, can_fly, dtime)
 		end
 	end
 
-	new_velo = get_velocity(v, entity.object:get_yaw() - rot_view, velo.y)
+	local new_velo = get_velocity(v, yaw - rot_view, velo.y)
 	new_acce.y = new_acce.y + acce_y
 
 	entity.object:set_velocity(new_velo)
 	entity.object:set_acceleration(new_acce)
 
-	-- CRASH!
-	if enable_crash then
-
-		local intensity = entity.v2 - v
-
-		if intensity >= crash_threshold then
-
---print("----------- crash", intensity)
-
-			entity.object:punch(entity.object, 1.0, {
-				full_punch_interval = 1.0,
-				damage_groups = {fleshy = intensity}
-			}, nil)
-
-		end
-	end
-
 	entity.v2 = v
 end
 
 
 -- directional flying routine by D00Med (edited by TenPlus1)
-
+function mobs.fly(entity, _, speed, shoots, arrow, moving_anim, stand_anim)
-function mobs.fly(entity, dtime, speed, shoots, arrow, moving_anim, stand_anim)
-
 	local ctrl = entity.driver:get_player_control()
 	local velo = entity.object:get_velocity()
 	local dir = entity.driver:get_look_dir()
 	local yaw = entity.driver:get_look_horizontal() + 1.57 -- offset fix between old and new commands
-	local rot_steer, rot_view = math.pi / 2, 0
-
-	if entity.player_rotation.y == 90 then
-		rot_steer, rot_view = 0, math.pi / 2
-	end
 
 	if ctrl.up then
 		entity.object:set_velocity({
@@ -414,7 +397,7 @@ function mobs.fly(entity, dtime, speed, shoots, arrow, moving_anim, stand_anim)
 	elseif ctrl.down then
 		entity.object:set_velocity({
 			x = -dir.x * speed,
-			y = dir.y * speed + 2,
+			y =  dir.y * speed + 2,
 			z = -dir.z * speed
 		})
 
@@ -422,11 +405,10 @@ function mobs.fly(entity, dtime, speed, shoots, arrow, moving_anim, stand_anim)
 		entity.object:set_velocity({x = 0, y = -2, z = 0})
 	end
 
-	entity.object:set_yaw(yaw + math.pi + math.pi / 2 - entity.rotate)
+	entity.object:set_yaw(yaw + pi + pi / 2 - entity.rotate)
 
 	-- firing arrows
 	if ctrl.LMB and ctrl.sneak and shoots then
-
 		local pos = entity.object:get_pos()
 		local obj = minetest.add_entity({
 			x = pos.x + 0 + dir.x * 2.5,
@@ -438,8 +420,8 @@ function mobs.fly(entity, dtime, speed, shoots, arrow, moving_anim, stand_anim)
 			ent.switch = 1 -- for mob specific arrows
 			ent.owner_id = tostring(entity.object) -- so arrows dont hurt entity you are riding
 			local vec = {x = dir.x * 6, y = dir.y * 6, z = dir.z * 6}
-			local yaw = entity.driver:get_look_horizontal()
+			yaw = entity.driver:get_look_horizontal()
-			obj:set_yaw(yaw + math.pi / 2)
+			obj:set_yaw(yaw + pi / 2)
 			obj:set_velocity(vec)
 		else
 			obj:remove()
@@ -448,7 +430,6 @@ function mobs.fly(entity, dtime, speed, shoots, arrow, moving_anim, stand_anim)
 
 	-- change animation if stopped
 	if velo.x == 0 and velo.y == 0 and velo.z == 0 then
-
 		mobs:set_animation(entity, stand_anim)
 	else
 		-- moving animation

readme.MD

@@ -23,6 +23,8 @@ Lucky Blocks: 9
 
 
 Changelog:
+- 1.55 - Add 'peaceful_player' privelage and setting so mobs don't attack specific players (thanks sfence)
+- 1.54 - Simplified animal breeding function, added editable settings (thanks Wuzzy), Child mobs now take 20 mins to grow up, reverted to simple mob spawning with setting to use area checks, on_flop added, air_damage added.
 - 1.53 - Added 'on_map_load' settings to mobs:spawn so that mobs will only spawn when new areas of map are loaded.
 - 1.52 - Added 'mob_active_limit' in settings to set number of mobs in game,
 (default is 0 for unlimited), removed {immortal} from mob armor, fluid viscocity slows mobs

settingtypes.txt

@@ -33,3 +33,9 @@ mob_nospawn_range (Mob no-spawn range) float 12.0
 
 #    Sets maximum number of active mobs in game (0 for unlimited)
 mob_active_limit (Mob Active Limit) float 0
+
+#    Enables area check when spawning mobs
+mob_area_spawn (Mob Area Spawn) bool false
+
+#    Enable peaceful player attack prevention
+enable_peaceful_player (Mobs do not attack peaceful player without reason) bool false

spawner.lua

@@ -23,9 +23,9 @@ minetest.register_node("mobs:spawner", {
 
 		-- text entry formspec
 		meta:set_string("formspec",
-			"size[9,3.5]"
+			"size[10,3.5]"
 			.. "label[0.15,0.5;" .. minetest.formspec_escape(head) .. "]"
-			.. "field[1,2.5;7.5,0.8;text;" .. S("Command:")
+			.. "field[1,2.5;8.5,0.8;text;" .. S("Command:")
 			.. ";${command}]")
 
 		meta:set_string("infotext", S("Spawner Not Active (enter settings)"))
@@ -162,10 +162,17 @@ minetest.register_abm({
 			end
 		end
 
+		-- set medium mob usually spawns in (defaults to air)
+		local reg = minetest.registered_entities[mob].fly_in
+
+		if not reg or type(reg) == "string" then
+			reg = {(reg or "air")}
+		end
+
 		-- find air blocks within 5 nodes of spawner
 		local air = minetest.find_nodes_in_area(
 			{x = pos.x - 5, y = pos.y + yof, z = pos.z - 5},
-			{x = pos.x + 5, y = pos.y + yof, z = pos.z + 5}, {"air"})
+			{x = pos.x + 5, y = pos.y + yof, z = pos.z + 5}, reg)
 
 		-- spawn in random air block
 		if air and #air > 0 then