From 5a2773ea1abb6c8706c477802aae2fa60704714c Mon Sep 17 00:00:00 2001
From: jordan4ibanez <jordan4ibanez@users.noreply.github.com>
Date: Sun, 25 Apr 2021 17:48:41 -0400
Subject: [PATCH 1/9] Add in basics of head code yaw

---
 .../mcl_mobs/api/mob_functions/ai.lua         |  8 +-
 .../mcl_mobs/api/mob_functions/head_logic.lua | 86 ++++++++++++++++++-
 2 files changed, 87 insertions(+), 7 deletions(-)

diff --git a/mods/ENTITIES/mcl_mobs/api/mob_functions/ai.lua b/mods/ENTITIES/mcl_mobs/api/mob_functions/ai.lua
index bb54f5b95..5ecb7c4fb 100644
--- a/mods/ENTITIES/mcl_mobs/api/mob_functions/ai.lua
+++ b/mods/ENTITIES/mcl_mobs/api/mob_functions/ai.lua
@@ -833,13 +833,13 @@ mobs.mob_step = function(self, dtime)
 
 	--DEBUG TIME!
 
-	--mobs.do_head_logic(self,dtime)
+	mobs.do_head_logic(self,dtime)
 
 
 
-	--if true then--DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG
-	--	return
-	--end
+	if true then--DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG
+		return
+	end
 
 	--despawn mechanism
 	--don't despawned tamed or bred mobs
diff --git a/mods/ENTITIES/mcl_mobs/api/mob_functions/head_logic.lua b/mods/ENTITIES/mcl_mobs/api/mob_functions/head_logic.lua
index a294f5528..f4fc5e56d 100644
--- a/mods/ENTITIES/mcl_mobs/api/mob_functions/head_logic.lua
+++ b/mods/ENTITIES/mcl_mobs/api/mob_functions/head_logic.lua
@@ -1,12 +1,67 @@
 local vector_new = vector.new
 
+
+--converts yaw to degrees
+local degrees = function(yaw)
+	return(yaw*180.0/math.pi)
+end
+
+
 mobs.do_head_logic = function(self,dtime)
 
-    --local yaw = self.object:get_yaw()
+    local player = minetest.get_player_by_name("singleplayer")
+
+    local look_at = player:get_pos()
+    look_at.y = look_at.y + player:get_properties().eye_height
 
 
 
-    --local bone_pos = vector_new(0,5,0)
+
+    local pos = self.object:get_pos()
+
+    local body_yaw = self.object:get_yaw()
+
+    local body_dir = minetest.yaw_to_dir(body_yaw)
+
+
+    --needs to be INTERNAL(API)
+    self.head_height_offset = 1.0525
+
+    pos.y = pos.y + self.head_height_offset
+
+    --needs to be INTERNAL (API)
+    self.head_direction_offset = 0.5
+
+    local head_offset = vector.multiply(body_dir, self.head_direction_offset)
+
+    pos = vector.add(pos, head_offset)
+
+
+
+
+    minetest.add_particle({
+    	pos = pos,
+    	velocity = {x=0, y=0, z=0},
+    	acceleration = {x=0, y=0, z=0},
+    	expirationtime = 0.2,
+    	size = 1,
+    	texture = "default_dirt.png",
+    })
+
+
+    local bone_pos = vector_new(0,0,0)
+
+
+    --needs to be INTERNAL (API)
+    --(horizontal)
+    self.head_bone_pos_y = 3.6
+    bone_pos.y = self.head_bone_pos_y
+
+    
+    --needs to be INTERNAL (API)
+    --(vertical)
+    self.head_bone_pos_z = -0.6
+    bone_pos.z = self.head_bone_pos_z
 
     --print(yaw)
 
@@ -15,7 +70,32 @@ mobs.do_head_logic = function(self,dtime)
     --bone_rot.x = bone_rot.x + (dtime * 10)
     --bone_rot.z = bone_rot.z + (dtime * 10)
 
-    --self.object:set_bone_position("head", bone_pos, bone_rot)
+    local head_yaw
+
+    head_yaw = minetest.dir_to_yaw(vector.direction(pos,look_at)) - body_yaw
+
+
+    --over rotation protection
+    --stops radians from going out of spec
+    if head_yaw > math.pi then
+        head_yaw = head_yaw - (math.pi * 2)
+    elseif head_yaw < -math.pi then
+        head_yaw = head_yaw + (math.pi * 2)
+    end
+
+
+    --upper check
+    if head_yaw > math.pi - (math.pi/2) then
+        head_yaw = 0
+    --lower check
+    elseif head_yaw < -math.pi + (math.pi/2) then
+        head_yaw = 0
+    end
+
+    
+
+
+    self.object:set_bone_position("head", bone_pos, vector_new(0,0,degrees(head_yaw)))
 
 
 

From d28e81bc9fc1f11b10da524d6874e8e1ee4a956d Mon Sep 17 00:00:00 2001
From: jordan4ibanez <jordan4ibanez@users.noreply.github.com>
Date: Sun, 25 Apr 2021 17:54:14 -0400
Subject: [PATCH 2/9] Add in mobs look pitch

---
 .../mcl_mobs/api/mob_functions/head_logic.lua  | 18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)

diff --git a/mods/ENTITIES/mcl_mobs/api/mob_functions/head_logic.lua b/mods/ENTITIES/mcl_mobs/api/mob_functions/head_logic.lua
index f4fc5e56d..612ef1d98 100644
--- a/mods/ENTITIES/mcl_mobs/api/mob_functions/head_logic.lua
+++ b/mods/ENTITIES/mcl_mobs/api/mob_functions/head_logic.lua
@@ -84,18 +84,28 @@ mobs.do_head_logic = function(self,dtime)
     end
 
 
-    --upper check
+    local check_failed = false
+    --upper check + 90 degrees or upper math.radians (3.14/2)
     if head_yaw > math.pi - (math.pi/2) then
         head_yaw = 0
-    --lower check
+        check_failed = true
+    --lower check - 90 degrees or lower negative math.radians (-3.14/2)
     elseif head_yaw < -math.pi + (math.pi/2) then
         head_yaw = 0
+        check_failed = true
     end
 
-    
+    local head_pitch = 0
 
+    --DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG 
+    --head_yaw = 0
+    --DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG 
 
-    self.object:set_bone_position("head", bone_pos, vector_new(0,0,degrees(head_yaw)))
+    if not check_failed then
+        head_pitch = minetest.dir_to_yaw(vector.new(vector.distance(vector.new(pos.x,0,pos.z),vector.new(look_at.x,0,look_at.z)),0,pos.y-look_at.y))+(math.pi/2)
+    end
+
+    self.object:set_bone_position("head", bone_pos, vector_new(degrees(head_pitch),0,degrees(head_yaw)))
 
 
 

From 6a38198e97fd0b573b3b9e590177977d900d5b14 Mon Sep 17 00:00:00 2001
From: jordan4ibanez <jordan4ibanez@users.noreply.github.com>
Date: Sun, 25 Apr 2021 18:24:10 -0400
Subject: [PATCH 3/9] Add in swap_y_with_x and reverse_head_yaw to flesh out
 head code api element

---
 mods/ENTITIES/mcl_mobs/api/api.lua                 |  6 ++++++
 .../mcl_mobs/api/mob_functions/head_logic.lua      | 14 +++++++++-----
 mods/ENTITIES/mobs_mc/creeper.lua                  |  4 ++++
 3 files changed, 19 insertions(+), 5 deletions(-)

diff --git a/mods/ENTITIES/mcl_mobs/api/api.lua b/mods/ENTITIES/mcl_mobs/api/api.lua
index 017756ee2..8de361c3e 100644
--- a/mods/ENTITIES/mcl_mobs/api/api.lua
+++ b/mods/ENTITIES/mcl_mobs/api/api.lua
@@ -371,6 +371,12 @@ function mobs:register_mob(name, def)
 		has_head = def.has_head or false,
 		head_bone = def.head_bone,
 
+		--you must use these to adjust the mob's head positions
+		head_bone_pos_y = def.head_bone_pos_y or 3.6,
+		head_bone_pos_z = def.head_bone_pos_z or -0.6,
+		swap_y_with_x = def.swap_y_with_x or false,
+		reverse_head_yaw = def.reverse_head_yaw or false,
+
 		--end j4i stuff
 
 		-- MCL2 extensions
diff --git a/mods/ENTITIES/mcl_mobs/api/mob_functions/head_logic.lua b/mods/ENTITIES/mcl_mobs/api/mob_functions/head_logic.lua
index 612ef1d98..40d1f22c8 100644
--- a/mods/ENTITIES/mcl_mobs/api/mob_functions/head_logic.lua
+++ b/mods/ENTITIES/mcl_mobs/api/mob_functions/head_logic.lua
@@ -54,13 +54,11 @@ mobs.do_head_logic = function(self,dtime)
 
     --needs to be INTERNAL (API)
     --(horizontal)
-    self.head_bone_pos_y = 3.6
     bone_pos.y = self.head_bone_pos_y
 
     
     --needs to be INTERNAL (API)
     --(vertical)
-    self.head_bone_pos_z = -0.6
     bone_pos.z = self.head_bone_pos_z
 
     --print(yaw)
@@ -70,10 +68,13 @@ mobs.do_head_logic = function(self,dtime)
     --bone_rot.x = bone_rot.x + (dtime * 10)
     --bone_rot.z = bone_rot.z + (dtime * 10)
 
-    local head_yaw
 
+    local head_yaw 
     head_yaw = minetest.dir_to_yaw(vector.direction(pos,look_at)) - body_yaw
 
+    if self.reverse_head_yaw then
+        head_yaw = head_yaw * -1
+    end
 
     --over rotation protection
     --stops radians from going out of spec
@@ -105,8 +106,11 @@ mobs.do_head_logic = function(self,dtime)
         head_pitch = minetest.dir_to_yaw(vector.new(vector.distance(vector.new(pos.x,0,pos.z),vector.new(look_at.x,0,look_at.z)),0,pos.y-look_at.y))+(math.pi/2)
     end
 
-    self.object:set_bone_position("head", bone_pos, vector_new(degrees(head_pitch),0,degrees(head_yaw)))
-
+    if self.swap_y_with_x then
+        self.object:set_bone_position("head", bone_pos, vector_new(degrees(head_pitch),degrees(head_yaw),0))
+    else
+        self.object:set_bone_position("head", bone_pos, vector_new(degrees(head_pitch),0,degrees(head_yaw)))
+    end
 
 
     --set_bone_position([bone, position, rotation])
diff --git a/mods/ENTITIES/mobs_mc/creeper.lua b/mods/ENTITIES/mobs_mc/creeper.lua
index b94a61dea..19c079d98 100644
--- a/mods/ENTITIES/mobs_mc/creeper.lua
+++ b/mods/ENTITIES/mobs_mc/creeper.lua
@@ -53,6 +53,10 @@ mobs:register_mob("mobs_mc:creeper", {
 	allow_fuse_reset = true,
 	stop_to_explode = true,
 
+	--head code
+	swap_y_with_x = true,
+	reverse_head_yaw = true,
+
 	-- Force-ignite creeper with flint and steel and explode after 1.5 seconds.
 	-- TODO: Make creeper flash after doing this as well.
 	-- TODO: Test and debug this code.

From a8152760b96ca3a9f142b006d2d888da0ebeff6a Mon Sep 17 00:00:00 2001
From: jordan4ibanez <jordan4ibanez@users.noreply.github.com>
Date: Sun, 25 Apr 2021 19:44:15 -0400
Subject: [PATCH 4/9] Integrate more switches into internal api elements of
 head code

---
 mods/ENTITIES/mcl_mobs/api/api.lua            | 24 +++++++++++++++++++
 .../mcl_mobs/api/mob_functions/ai.lua         | 14 +++++------
 .../mcl_mobs/api/mob_functions/head_logic.lua |  9 -------
 mods/ENTITIES/mobs_mc/cow+mooshroom.lua       | 10 ++++++++
 mods/ENTITIES/mobs_mc/creeper.lua             |  6 +++++
 5 files changed, 47 insertions(+), 16 deletions(-)

diff --git a/mods/ENTITIES/mcl_mobs/api/api.lua b/mods/ENTITIES/mcl_mobs/api/api.lua
index 8de361c3e..219fbed3f 100644
--- a/mods/ENTITIES/mcl_mobs/api/api.lua
+++ b/mods/ENTITIES/mcl_mobs/api/api.lua
@@ -368,15 +368,39 @@ function mobs:register_mob(name, def)
 
 
 		--head code variables
+		--defaults are for the cow's default
+		--because I don't know what else to set them
+		--to :P
+
 		has_head = def.has_head or false,
 		head_bone = def.head_bone,
 
 		--you must use these to adjust the mob's head positions
+
+		--has_head is used as a logic gate (quick easy check)
+		has_head = def.has_head or false,
+		--head_bone is the actual bone in the model which the head
+		--is attached to for animation
+		head_bone = def.head_bone or "head",
+
+		--this part controls the base position of the head calculations
+		--localized to the mob's visual yaw when gotten (self.object:get_yaw())
+		--you can enable the debug in /mob_functions/head_logic.lua by uncommenting the
+		--particle spawner code
+		head_height_offset =  def.head_height_offset or 1.0525,
+		head_direction_offset = def.head_direction_offset or 0.5,
+
+		--this part controls the visual of the head
 		head_bone_pos_y = def.head_bone_pos_y or 3.6,
 		head_bone_pos_z = def.head_bone_pos_z or -0.6,
+
+		--these variables are switches in case the model
+		--moves the wrong way
 		swap_y_with_x = def.swap_y_with_x or false,
 		reverse_head_yaw = def.reverse_head_yaw or false,
 
+		--END HEAD CODE VARIABLES
+
 		--end j4i stuff
 
 		-- MCL2 extensions
diff --git a/mods/ENTITIES/mcl_mobs/api/mob_functions/ai.lua b/mods/ENTITIES/mcl_mobs/api/mob_functions/ai.lua
index 5ecb7c4fb..10f4c261d 100644
--- a/mods/ENTITIES/mcl_mobs/api/mob_functions/ai.lua
+++ b/mods/ENTITIES/mcl_mobs/api/mob_functions/ai.lua
@@ -832,8 +832,11 @@ mobs.mob_step = function(self, dtime)
 
 
 	--DEBUG TIME!
+	--REMEMBER TO MOVE THIS AFTER DEATH CHECK
 
-	mobs.do_head_logic(self,dtime)
+	if self.has_head then
+		mobs.do_head_logic(self,dtime)
+	end
 
 
 
@@ -855,9 +858,6 @@ mobs.mob_step = function(self, dtime)
 		end
 	end
 
-	--make it so mobs do not glitch out when walking around/jumping
-	mobs.swap_auto_step_height_adjust(self)
-
 	--color modifier which coincides with the pause_timer
 	if self.old_health and self.health < self.old_health then		
 		self.object:set_texture_mod("^[colorize:red:120")
@@ -895,9 +895,6 @@ mobs.mob_step = function(self, dtime)
 
 	mobs.random_sound_handling(self,dtime)
 
-	
-
-
 	--mobs drowning mechanic
 	if not self.breathes_in_water then
 
@@ -1112,6 +1109,9 @@ mobs.mob_step = function(self, dtime)
 		return false
 	end
 
+	--make it so mobs do not glitch out when walking around/jumping
+	mobs.swap_auto_step_height_adjust(self)
+
 
 	-- can mob be pushed, if so calculate direction -- do this last (overrides everything)
 	if self.pushable then
diff --git a/mods/ENTITIES/mcl_mobs/api/mob_functions/head_logic.lua b/mods/ENTITIES/mcl_mobs/api/mob_functions/head_logic.lua
index 40d1f22c8..88d3c19ba 100644
--- a/mods/ENTITIES/mcl_mobs/api/mob_functions/head_logic.lua
+++ b/mods/ENTITIES/mcl_mobs/api/mob_functions/head_logic.lua
@@ -24,14 +24,8 @@ mobs.do_head_logic = function(self,dtime)
     local body_dir = minetest.yaw_to_dir(body_yaw)
 
 
-    --needs to be INTERNAL(API)
-    self.head_height_offset = 1.0525
-
     pos.y = pos.y + self.head_height_offset
 
-    --needs to be INTERNAL (API)
-    self.head_direction_offset = 0.5
-
     local head_offset = vector.multiply(body_dir, self.head_direction_offset)
 
     pos = vector.add(pos, head_offset)
@@ -52,12 +46,9 @@ mobs.do_head_logic = function(self,dtime)
     local bone_pos = vector_new(0,0,0)
 
 
-    --needs to be INTERNAL (API)
     --(horizontal)
     bone_pos.y = self.head_bone_pos_y
 
-    
-    --needs to be INTERNAL (API)
     --(vertical)
     bone_pos.z = self.head_bone_pos_z
 
diff --git a/mods/ENTITIES/mobs_mc/cow+mooshroom.lua b/mods/ENTITIES/mobs_mc/cow+mooshroom.lua
index e71270668..c346b1037 100644
--- a/mods/ENTITIES/mobs_mc/cow+mooshroom.lua
+++ b/mods/ENTITIES/mobs_mc/cow+mooshroom.lua
@@ -84,6 +84,16 @@ local cow_def = {
 	follow = mobs_mc.items.wheat,
 	view_range = 10,
 	fear_height = 4,
+
+	--head code
+	has_head = true,
+	head_bone = "head",
+	swap_y_with_x = false,
+	reverse_head_yaw = false,
+	head_bone_pos_y = 3.6,
+	head_bone_pos_z = -0.6,
+	head_height_offset = 1.0525,
+	head_direction_offset = 0.5,
 }
 
 mobs:register_mob("mobs_mc:cow", cow_def)
diff --git a/mods/ENTITIES/mobs_mc/creeper.lua b/mods/ENTITIES/mobs_mc/creeper.lua
index 19c079d98..9f083620d 100644
--- a/mods/ENTITIES/mobs_mc/creeper.lua
+++ b/mods/ENTITIES/mobs_mc/creeper.lua
@@ -54,8 +54,14 @@ mobs:register_mob("mobs_mc:creeper", {
 	stop_to_explode = true,
 
 	--head code
+	has_head = true,
+	head_bone = "head",
 	swap_y_with_x = true,
 	reverse_head_yaw = true,
+	head_bone_pos_y = 3.6,
+	head_bone_pos_z = -0.6,
+	head_height_offset = 1.0525,
+	head_direction_offset = 0.5,
 
 	-- Force-ignite creeper with flint and steel and explode after 1.5 seconds.
 	-- TODO: Make creeper flash after doing this as well.

From b6c9a1c423a9831cb3684e6a7e1b57163d6d4ab4 Mon Sep 17 00:00:00 2001
From: jordan4ibanez <jordan4ibanez@users.noreply.github.com>
Date: Sun, 25 Apr 2021 19:51:11 -0400
Subject: [PATCH 5/9] Fix creeper head

---
 mods/ENTITIES/mobs_mc/cow+mooshroom.lua |  4 ++++
 mods/ENTITIES/mobs_mc/creeper.lua       | 12 ++++++++----
 2 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/mods/ENTITIES/mobs_mc/cow+mooshroom.lua b/mods/ENTITIES/mobs_mc/cow+mooshroom.lua
index c346b1037..f6abe6298 100644
--- a/mods/ENTITIES/mobs_mc/cow+mooshroom.lua
+++ b/mods/ENTITIES/mobs_mc/cow+mooshroom.lua
@@ -88,12 +88,16 @@ local cow_def = {
 	--head code
 	has_head = true,
 	head_bone = "head",
+	
 	swap_y_with_x = false,
 	reverse_head_yaw = false,
+
 	head_bone_pos_y = 3.6,
 	head_bone_pos_z = -0.6,
+
 	head_height_offset = 1.0525,
 	head_direction_offset = 0.5,
+	--end head code
 }
 
 mobs:register_mob("mobs_mc:cow", cow_def)
diff --git a/mods/ENTITIES/mobs_mc/creeper.lua b/mods/ENTITIES/mobs_mc/creeper.lua
index 9f083620d..fa2337cf6 100644
--- a/mods/ENTITIES/mobs_mc/creeper.lua
+++ b/mods/ENTITIES/mobs_mc/creeper.lua
@@ -56,12 +56,16 @@ mobs:register_mob("mobs_mc:creeper", {
 	--head code
 	has_head = true,
 	head_bone = "head",
+
 	swap_y_with_x = true,
 	reverse_head_yaw = true,
-	head_bone_pos_y = 3.6,
-	head_bone_pos_z = -0.6,
-	head_height_offset = 1.0525,
-	head_direction_offset = 0.5,
+
+	head_bone_pos_y = 2.4,
+	head_bone_pos_z = 0,
+
+	head_height_offset = 1.1,
+	head_direction_offset = 0,
+	--end head code
 
 	-- Force-ignite creeper with flint and steel and explode after 1.5 seconds.
 	-- TODO: Make creeper flash after doing this as well.

From f57c4709ac74d1e2b0b683bebc706a1a3e59db73 Mon Sep 17 00:00:00 2001
From: jordan4ibanez <jordan4ibanez@users.noreply.github.com>
Date: Sun, 25 Apr 2021 19:54:11 -0400
Subject: [PATCH 6/9] Comment out code that causes mobs to glitch push players
 in mcl_playerplus

---
 mods/PLAYER/mcl_playerplus/init.lua | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/mods/PLAYER/mcl_playerplus/init.lua b/mods/PLAYER/mcl_playerplus/init.lua
index 13d136ecf..c346dca3c 100644
--- a/mods/PLAYER/mcl_playerplus/init.lua
+++ b/mods/PLAYER/mcl_playerplus/init.lua
@@ -168,11 +168,13 @@ minetest.register_globalstep(function(dtime)
 
 		local c_x, c_y = unpack(player_collision(player))
 
+		--[[
 		if player_velocity.x + player_velocity.y < .5 and c_x + c_y > 0 then
 			local add_velocity = player.add_player_velocity or player.add_velocity
 			add_velocity(player, {x = c_x, y = 0, z = c_y})
 			player_velocity = player:get_velocity() or player:get_player_velocity()
 		end
+		]]--
 
 		-- control head bone
 		local pitch = - degrees(player:get_look_vertical())

From ac852309388e1f9a7dec294440975c7dc89e498c Mon Sep 17 00:00:00 2001
From: jordan4ibanez <jordan4ibanez@users.noreply.github.com>
Date: Sun, 25 Apr 2021 20:08:45 -0400
Subject: [PATCH 7/9] Add in chicken head code with additional pitch modifier

---
 mods/ENTITIES/mcl_mobs/api/api.lua            |  1 +
 .../mcl_mobs/api/mob_functions/head_logic.lua |  4 ++++
 mods/ENTITIES/mobs_mc/chicken.lua             | 19 +++++++++++++++++--
 mods/ENTITIES/mobs_mc/cow+mooshroom.lua       |  1 +
 mods/ENTITIES/mobs_mc/creeper.lua             |  1 +
 5 files changed, 24 insertions(+), 2 deletions(-)

diff --git a/mods/ENTITIES/mcl_mobs/api/api.lua b/mods/ENTITIES/mcl_mobs/api/api.lua
index 219fbed3f..251c6328a 100644
--- a/mods/ENTITIES/mcl_mobs/api/api.lua
+++ b/mods/ENTITIES/mcl_mobs/api/api.lua
@@ -393,6 +393,7 @@ function mobs:register_mob(name, def)
 		--this part controls the visual of the head
 		head_bone_pos_y = def.head_bone_pos_y or 3.6,
 		head_bone_pos_z = def.head_bone_pos_z or -0.6,
+		head_pitch_modifier = def.head_pitch_modifier or 0,
 
 		--these variables are switches in case the model
 		--moves the wrong way
diff --git a/mods/ENTITIES/mcl_mobs/api/mob_functions/head_logic.lua b/mods/ENTITIES/mcl_mobs/api/mob_functions/head_logic.lua
index 88d3c19ba..dc0d8dc56 100644
--- a/mods/ENTITIES/mcl_mobs/api/mob_functions/head_logic.lua
+++ b/mods/ENTITIES/mcl_mobs/api/mob_functions/head_logic.lua
@@ -97,6 +97,10 @@ mobs.do_head_logic = function(self,dtime)
         head_pitch = minetest.dir_to_yaw(vector.new(vector.distance(vector.new(pos.x,0,pos.z),vector.new(look_at.x,0,look_at.z)),0,pos.y-look_at.y))+(math.pi/2)
     end
 
+    if self.head_pitch_modifier then
+        head_pitch = head_pitch + self.head_pitch_modifier
+    end
+
     if self.swap_y_with_x then
         self.object:set_bone_position("head", bone_pos, vector_new(degrees(head_pitch),degrees(head_yaw),0))
     else
diff --git a/mods/ENTITIES/mobs_mc/chicken.lua b/mods/ENTITIES/mobs_mc/chicken.lua
index 094ebb0de..bf02f8767 100644
--- a/mods/ENTITIES/mobs_mc/chicken.lua
+++ b/mods/ENTITIES/mobs_mc/chicken.lua
@@ -108,8 +108,23 @@ mobs:register_mob("mobs_mc:chicken", {
 			gain = 1.0,
 			max_hear_distance = 16,
 		}, true)
-	end,	
-	
+	end,
+
+	--head code
+	has_head = true,
+	head_bone = "head",
+
+	swap_y_with_x = false,
+	reverse_head_yaw = false,
+
+	head_bone_pos_y = 1.675,
+	head_bone_pos_z = 0,
+
+	head_height_offset = 0.55,
+	head_direction_offset = 0.0925,
+
+	head_pitch_modifier = -math.pi/2,
+	--end head code
 })
 
 --spawn
diff --git a/mods/ENTITIES/mobs_mc/cow+mooshroom.lua b/mods/ENTITIES/mobs_mc/cow+mooshroom.lua
index f6abe6298..98aa8e3f3 100644
--- a/mods/ENTITIES/mobs_mc/cow+mooshroom.lua
+++ b/mods/ENTITIES/mobs_mc/cow+mooshroom.lua
@@ -97,6 +97,7 @@ local cow_def = {
 
 	head_height_offset = 1.0525,
 	head_direction_offset = 0.5,
+	head_pitch_modifier = 0,
 	--end head code
 }
 
diff --git a/mods/ENTITIES/mobs_mc/creeper.lua b/mods/ENTITIES/mobs_mc/creeper.lua
index fa2337cf6..8ccb4689d 100644
--- a/mods/ENTITIES/mobs_mc/creeper.lua
+++ b/mods/ENTITIES/mobs_mc/creeper.lua
@@ -65,6 +65,7 @@ mobs:register_mob("mobs_mc:creeper", {
 
 	head_height_offset = 1.1,
 	head_direction_offset = 0,
+	head_pitch_modifier = 0,
 	--end head code
 
 	-- Force-ignite creeper with flint and steel and explode after 1.5 seconds.

From e52aab45c07c22605993126c4a8ba39c8318d904 Mon Sep 17 00:00:00 2001
From: jordan4ibanez <jordan4ibanez@users.noreply.github.com>
Date: Sun, 25 Apr 2021 20:23:46 -0400
Subject: [PATCH 8/9] Implement no-op head operations for enderman

---
 .../mcl_mobs/api/mob_functions/head_logic.lua    |  4 ++--
 mods/ENTITIES/mobs_mc/enderman.lua               | 16 ++++++++++++++++
 2 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/mods/ENTITIES/mcl_mobs/api/mob_functions/head_logic.lua b/mods/ENTITIES/mcl_mobs/api/mob_functions/head_logic.lua
index dc0d8dc56..0fc94ffe6 100644
--- a/mods/ENTITIES/mcl_mobs/api/mob_functions/head_logic.lua
+++ b/mods/ENTITIES/mcl_mobs/api/mob_functions/head_logic.lua
@@ -102,9 +102,9 @@ mobs.do_head_logic = function(self,dtime)
     end
 
     if self.swap_y_with_x then
-        self.object:set_bone_position("head", bone_pos, vector_new(degrees(head_pitch),degrees(head_yaw),0))
+        self.object:set_bone_position(self.head_bone, bone_pos, vector_new(degrees(head_pitch),degrees(head_yaw),0))
     else
-        self.object:set_bone_position("head", bone_pos, vector_new(degrees(head_pitch),0,degrees(head_yaw)))
+        self.object:set_bone_position(self.head_bone, bone_pos, vector_new(degrees(head_pitch),0,degrees(head_yaw)))
     end
 
 
diff --git a/mods/ENTITIES/mobs_mc/enderman.lua b/mods/ENTITIES/mobs_mc/enderman.lua
index 506ae0474..c96faaa1e 100644
--- a/mods/ENTITIES/mobs_mc/enderman.lua
+++ b/mods/ENTITIES/mobs_mc/enderman.lua
@@ -224,6 +224,22 @@ mobs:register_mob("mobs_mc:enderman", {
 		max = 1,
 		looting = "common"},
 	},
+
+	--head code
+	has_head = false,
+	head_bone = "head.low",
+
+	swap_y_with_x = false,
+	reverse_head_yaw = false,
+
+	head_bone_pos_y = 2.4,
+	head_bone_pos_z = 0,
+
+	head_height_offset = 1.1,
+	head_direction_offset = 0,
+	head_pitch_modifier = 0,
+	--end head code
+
 	animation = select_enderman_animation("normal"),
 	_taken_node = "",
 	do_custom = function(self, dtime)

From ddb33acf0d85f29dddb8bdab7a3a7030f9f595be Mon Sep 17 00:00:00 2001
From: jordan4ibanez <jordan4ibanez@users.noreply.github.com>
Date: Sun, 25 Apr 2021 20:46:45 -0400
Subject: [PATCH 9/9] Add in unused head code elements

---
 mods/ENTITIES/mcl_mobs/api/mob_functions/ai.lua | 12 ++++++------
 mods/ENTITIES/mobs_mc/pig.lua                   | 16 ++++++++++++++++
 mods/ENTITIES/mobs_mc/sheep.lua                 | 16 ++++++++++++++++
 mods/ENTITIES/mobs_mc/skeleton+stray.lua        | 16 ++++++++++++++++
 mods/ENTITIES/mobs_mc/wolf.lua                  | 16 ++++++++++++++++
 mods/ENTITIES/mobs_mc/zombie.lua                | 16 ++++++++++++++++
 mods/ENTITIES/mobs_mc/zombiepig.lua             | 16 ++++++++++++++++
 7 files changed, 102 insertions(+), 6 deletions(-)

diff --git a/mods/ENTITIES/mcl_mobs/api/mob_functions/ai.lua b/mods/ENTITIES/mcl_mobs/api/mob_functions/ai.lua
index 10f4c261d..eda7e8871 100644
--- a/mods/ENTITIES/mcl_mobs/api/mob_functions/ai.lua
+++ b/mods/ENTITIES/mcl_mobs/api/mob_functions/ai.lua
@@ -834,15 +834,15 @@ mobs.mob_step = function(self, dtime)
 	--DEBUG TIME!
 	--REMEMBER TO MOVE THIS AFTER DEATH CHECK
 
-	if self.has_head then
-		mobs.do_head_logic(self,dtime)
-	end
+	--if self.has_head then
+	--	mobs.do_head_logic(self,dtime)
+	--end
 
 
 
-	if true then--DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG
-		return
-	end
+	--if true then--DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG DEBUG
+	--	return
+	--end
 
 	--despawn mechanism
 	--don't despawned tamed or bred mobs
diff --git a/mods/ENTITIES/mobs_mc/pig.lua b/mods/ENTITIES/mobs_mc/pig.lua
index d88066798..21ab1a62b 100644
--- a/mods/ENTITIES/mobs_mc/pig.lua
+++ b/mods/ENTITIES/mobs_mc/pig.lua
@@ -19,6 +19,22 @@ mobs:register_mob("mobs_mc:pig", {
 		"mobs_mc_pig.png", -- base
 		"blank.png", -- saddle
 	}},
+
+	--head code
+	has_head = true,
+	head_bone = "head",
+
+	swap_y_with_x = false,
+	reverse_head_yaw = false,
+
+	head_bone_pos_y = 2.4,
+	head_bone_pos_z = 0,
+
+	head_height_offset = 1.1,
+	head_direction_offset = 0,
+	head_pitch_modifier = 0,
+	--end head code
+
 	visual_size = {x=2.5, y=2.5},
 	makes_footstep_sound = true,
 	walk_velocity = 1,
diff --git a/mods/ENTITIES/mobs_mc/sheep.lua b/mods/ENTITIES/mobs_mc/sheep.lua
index 5be276d8f..a6273afac 100644
--- a/mods/ENTITIES/mobs_mc/sheep.lua
+++ b/mods/ENTITIES/mobs_mc/sheep.lua
@@ -78,6 +78,22 @@ mobs:register_mob("mobs_mc:sheep", {
 	makes_footstep_sound = true,
 	walk_velocity = 1,
 	run_velocity = 3,
+	
+	--head code
+	has_head = true,
+	head_bone = "head",
+	
+	swap_y_with_x = false,
+	reverse_head_yaw = false,
+
+	head_bone_pos_y = 3.6,
+	head_bone_pos_z = -0.6,
+
+	head_height_offset = 1.0525,
+	head_direction_offset = 0.5,
+	head_pitch_modifier = 0,
+	--end head code
+
 	drops = {
 		{name = mobs_mc.items.mutton_raw,
 		chance = 1,
diff --git a/mods/ENTITIES/mobs_mc/skeleton+stray.lua b/mods/ENTITIES/mobs_mc/skeleton+stray.lua
index 6f0d5c0b9..f43790272 100644
--- a/mods/ENTITIES/mobs_mc/skeleton+stray.lua
+++ b/mods/ENTITIES/mobs_mc/skeleton+stray.lua
@@ -34,6 +34,22 @@ local skeleton = {
 		"mcl_bows_bow_0.png", -- bow
 		"mobs_mc_skeleton.png", -- skeleton
 	} },
+
+	--head code
+	has_head = false,
+	head_bone = "head",
+
+	swap_y_with_x = true,
+	reverse_head_yaw = true,
+
+	head_bone_pos_y = 2.4,
+	head_bone_pos_z = 0,
+
+	head_height_offset = 1.1,
+	head_direction_offset = 0,
+	head_pitch_modifier = 0,
+	--end head code
+
 	visual_size = {x=1, y=1},
 	makes_footstep_sound = true,
 	textures = {
diff --git a/mods/ENTITIES/mobs_mc/wolf.lua b/mods/ENTITIES/mobs_mc/wolf.lua
index 941cc42f1..ab36c9173 100644
--- a/mods/ENTITIES/mobs_mc/wolf.lua
+++ b/mods/ENTITIES/mobs_mc/wolf.lua
@@ -30,6 +30,22 @@ local wolf = {
 	rotate = 270,
 	passive = false,
 	group_attack = true,
+
+	--head code
+	has_head = false,
+	head_bone = "head",
+	
+	swap_y_with_x = false,
+	reverse_head_yaw = false,
+
+	head_bone_pos_y = 3.6,
+	head_bone_pos_z = -0.6,
+
+	head_height_offset = 1.0525,
+	head_direction_offset = 0.5,
+	head_pitch_modifier = 0,
+	--end head code
+
 	collisionbox = {-0.3, -0.00, -0.3, 0.3, 0.85, 0.3},
 	visual = "mesh",
 	mesh = "mobs_mc_wolf.b3d",
diff --git a/mods/ENTITIES/mobs_mc/zombie.lua b/mods/ENTITIES/mobs_mc/zombie.lua
index ecb79621d..dde5af89a 100644
--- a/mods/ENTITIES/mobs_mc/zombie.lua
+++ b/mods/ENTITIES/mobs_mc/zombie.lua
@@ -75,6 +75,22 @@ local zombie = {
 		damage = "mobs_mc_zombie_hurt",
 		distance = 16,
 	},
+
+	--head code
+	has_head = false,
+	head_bone = "Head",
+
+	swap_y_with_x = true,
+	reverse_head_yaw = true,
+
+	head_bone_pos_y = 2.4,
+	head_bone_pos_z = 0,
+
+	head_height_offset = 1.1,
+	head_direction_offset = 0,
+	head_pitch_modifier = 0,
+	--end head code
+
 	eye_height = 1.65,
 	walk_velocity = 1,
 	run_velocity = 3.5,
diff --git a/mods/ENTITIES/mobs_mc/zombiepig.lua b/mods/ENTITIES/mobs_mc/zombiepig.lua
index af1da2962..e56b60e89 100644
--- a/mods/ENTITIES/mobs_mc/zombiepig.lua
+++ b/mods/ENTITIES/mobs_mc/zombiepig.lua
@@ -43,6 +43,22 @@ local pigman = {
 		damage = "mobs_mc_zombiepig_hurt",
 		distance = 16,
 	},
+
+	--head code
+	has_head = false,
+	head_bone = "head",
+
+	swap_y_with_x = true,
+	reverse_head_yaw = true,
+
+	head_bone_pos_y = 2.4,
+	head_bone_pos_z = 0,
+
+	head_height_offset = 1.1,
+	head_direction_offset = 0,
+	head_pitch_modifier = 0,
+	--end head code
+
 	jump = true,
 	makes_footstep_sound = true,
 	walk_velocity = .8,