Add headanim

mods/headanim/LICENSE

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+MIT License
+
+Copyright (c) 2020-2021 LoneWolfHT
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

mods/headanim/README.md

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+# Headanim
+[![ContentDB](https://content.minetest.net/packages/Lone_Wolf/headanim/shields/downloads/)](https://content.minetest.net/packages/Lone_Wolf/headanim/)
+
+Makes player heads follow their look dir in Minetest. Requires version 5.3+
+
+## Similar mods
+* https://github.com/minetest-mods/playeranim: A lot more complex (and possibly slower?) than Headanim but looks nicer as a result

mods/headanim/init.lua

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+local get_connected_players = minetest.get_connected_players
+local abs = math.abs
+local deg = math.deg
+local basepos = vector.new(0, 6.35, 0)
+local lastdir = {}
+
+minetest.register_globalstep(function(dtime)
+	for _, player in pairs(get_connected_players()) do
+		local pname = player:get_player_name()
+		local ldeg = -deg(player:get_look_vertical())
+
+		if abs((lastdir[pname] or 0) - ldeg) > 4 then
+			lastdir[pname] = ldeg
+			player:set_bone_position("Head", basepos, {x = ldeg, y = 0, z = 0})
+		end
+	end
+end)
+
+minetest.register_on_leaveplayer(function(player)
+	lastdir[player:get_player_name()] = nil
+end)

mods/headanim/mod.conf

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+name = headanim
+min_minetest_version = 5.3