Adjust bones, animations slightly from b3d data.

Initialize bones on spawn.

Note: to obatin bone values, try in Blender

"%.3f, %.3f, %.3f" % tuple((bpy.context.object.pose.bones["head.control"].head - bpy.context.object.pose.bones["head.control"].tail) * Vector((1,-1,1)))

or

"{0:.3f}, {1:.3f}, {2:.3f}".format(*(bpy.context.object.pose.bones["head.control"].head - bpy.context.object.pose.bones["head.control"].tail) @ bpy.context.object.pose.bones["head.control"].matrix * Vector((1,-1,1)))

mods/ENTITIES/mcl_mobs/effects.lua

@@ -399,7 +399,7 @@ function mob_class:check_head_swivel(dtime)
 	end
 
 	-- 0.02 is about 1.14 degrees tolerance, to update less often
-	if math.abs(oldr.x-newr.x) + math.abs(oldr.y-newr.y) + math.abs(oldr.z-newr.z) < 0.02 and vector.equals(oldp, vector.zero()) then return end
+	if math.abs(oldr.x-newr.x) + math.abs(oldr.y-newr.y) + math.abs(oldr.z-newr.z) < 0.02 then return end
 
 	if self.object.get_bone_override then -- minetest >= 5.9
 		self.object:set_bone_override(self.head_swivel, {

mods/ENTITIES/mcl_mobs/spawning.lua

@@ -701,7 +701,19 @@ function mcl_mobs.spawn(pos,id)
 	local def = minetest.registered_entities[id] or minetest.registered_entities["mobs_mc:"..id] or minetest.registered_entities["extra_mobs:"..id]
 	if not def or not def.is_mob or (def.can_spawn and not def.can_spawn(pos)) then return false end
 	if not has_room(def, pos) then return false end
-	return minetest.add_entity(pos, def.name)
+	local ent = minetest.add_entity(pos, def.name)
+	-- initialize head bone
+	if def.head_swivel and def.head_bone_position then
+		if ent and ent.get_bone_override then -- minetest >= 5.9
+			ent:set_bone_override(def.head_swivel, {
+				position = { vec = def.head_bone_position, absolute = true },
+				rotation = { vec = vector.zero(), absolute = true }
+			})
+		else -- minetest < 5.9
+			self.object:set_bone_position(def.head_swivel, def.head_bone_position, vector.zero)
+		end
+	end
+	return ent
 end
 
 local function spawn_group(p,mob,spawn_on,amount_to_spawn)

mods/ENTITIES/mobs_mc/blaze.lua

@@ -32,7 +32,7 @@ mcl_mobs.register_mob("mobs_mc:blaze", {
 	mesh = "mobs_mc_blaze.b3d",
 	head_swivel = "head.control",
 	head_eye_height = 1.4,
-	head_bone_position = vector.new( 0, 4, 0 ), -- for minetest <= 5.8
+	head_bone_position = vector.new( 0, 3.9, 0 ), -- for minetest <= 5.8
 	curiosity = 10,
 	head_pitch_multiplier=-1,
 	textures = {

mods/ENTITIES/mobs_mc/chicken.lua

@@ -22,7 +22,7 @@ mcl_mobs.register_mob("mobs_mc:chicken", {
 	floats = 1,
 	head_swivel = "head.control",
 	head_eye_height = 0.5,
-	head_bone_position = vector.new(0, 4, -.3), -- for minetest <= 5.8
+	head_bone_position = vector.new(0, 3.72, -.472), -- for minetest <= 5.8
 	curiosity = 10,
 	head_yaw="z",
 	visual_size = {x=1,y=1},

mods/ENTITIES/mobs_mc/cow+mooshroom.lua

@@ -23,7 +23,7 @@ local cow_def = {
 	}, },
 	head_swivel = "head.control",
 	head_eye_height = 1.1,
-	head_bone_position = vector.new( 0, 10, 0 ), -- for minetest <= 5.8
+	head_bone_position = vector.new( 0, 10.07, -1.744 ), -- for minetest <= 5.8
 	curiosity = 2,
 	head_yaw="z",
 	makes_footstep_sound = true,

mods/ENTITIES/mobs_mc/llama.lua

@@ -62,7 +62,7 @@ mcl_mobs.register_mob("mobs_mc:llama", {
 	head_swivel = "head.control",
 	head_eye_height = 1.5,
 	head_yaw = "z",
-	head_bone_position = vector.new( 0, 11, 0 ), -- for minetest <= 5.8
+	head_bone_position = vector.new( 0, 10.62, 0 ), -- for minetest <= 5.8
 	curiosity = 60,
 
 	hp_min = 15,

mods/ENTITIES/mobs_mc/ocelot.lua

@@ -38,7 +38,7 @@ local ocelot = {
 	xp_max = 3,
 	head_swivel = "head.control",
 	head_eye_height = 0.4,
-	head_bone_position = vector.new( 0, 6.2, 0 ), -- for minetest <= 5.8
+	head_bone_position = vector.new( 0, 6.44, -0.42 ), -- for minetest <= 5.8
 	head_yaw="z",
 	curiosity = 4,
 	collisionbox = {-0.3, -0.01, -0.3, 0.3, 0.69, 0.3},

mods/ENTITIES/mobs_mc/parrot.lua

@@ -136,7 +136,7 @@ mcl_mobs.register_mob("mobs_mc:parrot", {
 	xp_min = 1,
 	xp_max = 3,
 	head_swivel = "head.control",
-	head_bone_position = vector.new( 0, 1.1, 0 ), -- for minetest <= 5.8
+	head_bone_position = vector.new( 0, 1.211, 0 ), -- for minetest <= 5.8
 	curiosity = 10,
 	collisionbox = {-0.25, -0.01, -0.25, 0.25, 0.89, 0.25},
 	visual = "mesh",
@@ -165,8 +165,8 @@ mcl_mobs.register_mob("mobs_mc:parrot", {
 		fly_speed = 50,
 		stand_start = 0,
 		stand_end = 0,
-		fly_start = 30,
-		fly_end = 45,
+		fly_start = 60,
+		fly_end = 120,
 		walk_start = 0,
 		walk_end = 20,
 		-- TODO: actual walk animation

mods/ENTITIES/mobs_mc/pig.lua

@@ -21,7 +21,7 @@ mcl_mobs.register_mob("mobs_mc:pig", {
 	}},
 	head_swivel = "head.control",
 	head_eye_height = 0.7,
-	head_bone_position = vector.new( 0, 7.5, -1 ), -- for minetest <= 5.8
+	head_bone_position = vector.new( 0, 7.23, -1.03 ), -- for minetest <= 5.8
 	curiosity = 3,
 	head_yaw="z",
 	makes_footstep_sound = true,

mods/ENTITIES/mobs_mc/piglin.lua

@@ -252,7 +252,7 @@ local zombified_piglin = {
 	damage = 9,
 	reach = 2,
 	head_swivel = "head.control",
-	head_bone_position = vector.new( 0, 2.4, 0 ), -- for minetest <= 5.8
+	head_bone_position = vector.new( 0, 2.417, 0 ), -- for minetest <= 5.8
 	head_eye_height = 1.4,
 	curiosity = 15,
 	collisionbox = {-0.3, -0.01, -0.3, 0.3, 1.94, 0.3}, -- same

mods/ENTITIES/mobs_mc/polar_bear.lua

@@ -26,7 +26,7 @@ mcl_mobs.register_mob("mobs_mc:polar_bear", {
 	},
 	head_swivel = "head.control",
 	head_eye_height = 1,
-	head_bone_position = vector.new( 0, 2.6, 0 ), -- for minetest <= 5.8
+	head_bone_position = vector.new( 0, 2.396, 0 ), -- for minetest <= 5.8
 	curiosity = 20,
 	head_yaw="z",
 	visual_size = {x=3.0, y=3.0},

mods/ENTITIES/mobs_mc/sheep.lua

@@ -66,7 +66,7 @@ mcl_mobs.register_mob("mobs_mc:sheep", {
 	collisionbox = {-0.45, -0.01, -0.45, 0.45, 1.29, 0.45},
 	head_swivel = "head.control",
 	head_eye_height = 1.0,
-	head_bone_position = vector.new( 0, 3.3, -.7 ), -- for minetest <= 5.8
+	head_bone_position = vector.new( 0, 3.7, -.9 ), -- for minetest <= 5.8
 	curiosity = 6,
 	head_yaw="z",
 	visual = "mesh",