on_flop and air_damage added

api.lua

@@ -8,7 +8,7 @@ local use_cmi = minetest.global_exists("cmi")
 
 mobs = {
 	mod = "redo",
-	version = "20201130",
+	version = "20201206",
 	intllib = S,
 	invis = minetest.global_exists("invisibility") and invisibility or {}
 }
@@ -112,6 +112,7 @@ local mob_class = {
 	light_damage_max = 15,
 	water_damage = 0,
 	lava_damage = 0,
+	air_damage = 0,
 	suffocation = 2,
 	fall_damage = 1,
 	fall_speed = -10, -- must be lower than -2 (default: -10)
@@ -829,6 +830,11 @@ 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
@@ -899,6 +905,7 @@ 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 rot = self.animation.die_rotate and 5
 
 		self.attack = nil
 		self.v_start = false
@@ -906,6 +913,10 @@ function mob_class:check_for_death(cmi_cause)
 		self.blinktimer = 0
 		self.passive = true
 		self.state = "die"
+		self.object:set_properties({
+			pointable = false, collide_with_objects = false,
+			automatic_rotate = rot,
+		})
 		self:set_velocity(0)
 		self:set_animation("die")
 
@@ -1090,6 +1101,19 @@ 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
 
@@ -1296,16 +1320,20 @@ 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
@@ -1334,14 +1362,14 @@ function mob_class:breed()
 		return
 	end
 
-	-- horny animal can mate for 40 seconds,
-	-- afterwards horny animal cannot mate again for 200 seconds
+	-- horny animal can mate for HORNY_TIME 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
@@ -1349,7 +1377,7 @@ 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()
 
@@ -1357,7 +1385,6 @@ 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
@@ -1386,18 +1413,20 @@ 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
-				num = num + 1
-			end
+			and ent.hornytimer <= HORNY_TIME then
 
-			-- found your mate? then have a baby
-			if num > 1 then
+				local pos2 = ent.object:get_pos()
 
-				self.hornytimer = 41
-				ent.hornytimer = 41
+				-- Have mobs face one another
+				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
@@ -1465,8 +1494,6 @@ function mob_class:breed()
 					ent2.owner = self.owner
 				end, self, ent)
 
-				num = 0
-
 				break
 			end
 		end
@@ -2011,10 +2038,11 @@ 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
 
@@ -2070,6 +2098,15 @@ 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")
@@ -3468,6 +3505,7 @@ 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
@@ -3491,6 +3529,7 @@ minetest.register_entity(name, setmetatable({
 	light_damage_max = def.light_damage_max,
 	water_damage = def.water_damage,
 	lava_damage = def.lava_damage,
+	air_damage = def.air_damage,
 	suffocation = def.suffocation,
 	fall_damage = def.fall_damage,
 	fall_speed = def.fall_speed,
@@ -4572,8 +4611,11 @@ 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
 

api.txt

@@ -64,6 +64,7 @@ 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.
    'light_damage'  holds the damage per second inflicted to mobs when light
@@ -226,6 +227,7 @@ 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 +300,9 @@ 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 +334,14 @@ 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

readme.MD

@@ -23,6 +23,7 @@ Lucky Blocks: 9
 
 
 Changelog:
+- 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