Doors Redo (Edited by TenPlus1)

Based on

Minetest Game mod: doors
========================
version: 2.0

License of source code:
-----------------------
Copyright (C) 2012 PilzAdam
modified by BlockMen (added sounds, glassdoors[glass, obsidian glass], trapdoor)
Steel trapdoor added by sofar.
Copyright (C) 2016 sofar@foo-projects.org
Re-implemented most of the door algorithms, added meshes, UV wrapped texture
Added doors API to facilitate coding mods accessing and operating doors.
Added Fence Gate model, code, and sounds

This program is free software. It comes without any warranty, to
the extent permitted by applicable law. You can redistribute it
and/or modify it under the terms of the Do What The Fuck You Want
To Public License, Version 2, as published by Sam Hocevar. See
http://sam.zoy.org/wtfpl/COPYING for more details.

License of textures
--------------------------------------
following Textures created by Fernando Zapata (CC BY-SA 3.0):
  door_wood.png
  door_wood_a.png
  door_wood_a_r.png
  door_wood_b.png
  door_wood_b_r.png

following Textures created by BlockMen (WTFPL):
  door_trapdoor.png
  door_obsidian_glass_side.png

following textures created by celeron55 (CC BY-SA 3.0):
  door_glass_a.png
  door_glass_b.png

following Textures created by PenguinDad (CC BY-SA 4.0):
  door_glass.png
  door_obsidian_glass.png

following textures created by sofar (CC-BY-SA-3.0)
  doors_trapdoor_steel.png
  doors_trapdoor_steel_side.png
  door_trapdoor_side.png


Obsidian door textures by red-001 based on textures by Pilzadam and BlockMen: WTFPL
  door_obsidian_glass.png

Glass door textures by red-001 based on textures by celeron55: CC BY-SA 3.0
  door_glass.png
All other textures (created by PilzAdam): WTFPL

Door textures were converted to the new texture map by sofar, paramat and
red-001, under the same license as the originals.

Models:
--------------------------------------
Door 3d models by sofar (CC-BY-SA-3.0)
 - door_a.obj
 - door_b.obj
Fence gate models by sofar (CC-BY-SA-3.0)
 - fencegate_open.obj
 - fencegate_closed.obj

License of sounds
--------------------------------------
Opening-Sound created by CGEffex (CC BY 3.0), modified by BlockMen
  door_open.ogg
Closing-Sound created by bennstir (CC BY 3.0)
  door_close.ogg
fencegate_open.ogg:
  http://www.freesound.org/people/mhtaylor67/sounds/126041/ - CC0
fencegate_close.ogg:
  http://www.freesound.org/people/BarkersPinhead/sounds/274807/ - CC-BY-3.0
  http://www.freesound.org/people/rivernile7/sounds/249573/ - CC-BY-3.0
Steel door sounds (open & close (CC-BY-3.0) by HazMatt
  - http://www.freesound.org/people/HazMattt/sounds/187283/
  doors_steel_door_open.ogg
  doors_steel_door_close.ogg