minetest-birthstones/LICENSE.txt

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License of source code
----------------------
(rereleased with MIT License)
Copyright 2017 expertmm (github.com/expertmm)
* all code under "Changes" in README by expertmm
* based on WTFPL code (2012) by Doc22
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.
Licenses of media (textures) unless otherwise specified (see README file):
--------------------------------------------------------------------------
Attribution-ShareAlike 3.0 Unported (CC BY-SA 3.0)
Copyright (C) 2015-2016 expertmm (github.com/expertmm):
* based on textures from minetest_game at https://github.com/minetest/minetest_game/tree/master/mods/default: source work is included on layers in Gimp XCF project files in etc folder:
* Opal textures CC BY-SA 3.0 by expertmm: based on CC BY-SA 3.0 photo by Dpulitzer "Multicolor rough crystal opal from Coober Pedy, South Australia" https://en.wikipedia.org/wiki/Opal#/media/File:Coober_Pedy_Opal_2.jpg
* Swords CC BY-SA 3.0 by expertmm: based on default_tool_steelsword.png by BlockMen (CC BY-SA 3.0 Unported)
* Shovels CC BY-SA 3.0 by expertmm: based on default_tool_steelshovel.png by celeron55, Perttu Ahola <celeron55@gmail.com> (CC BY-SA 3.0 )
* Hoes CC BY-SA 3.0 by expertmm: based on farming_tool_hoe.png bu various: Copyright (C) 2012-2016 PilzAdam, Copyright (C) 2014-2016 BlockMen, Copyright (C) 2015-2016 MasterGollum, Copyright (C) 2015-2016 Gambit
Everything else (2012) by Doc22:
* Textures for axes, picks, and if not modified after 2012: items (x.png where x is mineral name), mineral overlays, and blocks (originally WTFPL as specified at https://forum.minetest.net/viewtopic.php?id=3663 , rereleased as CC BY-SA 3.0)
You are free to:
Share — copy and redistribute the material in any medium or format.
Adapt — remix, transform, and build upon the material for any purpose, even commercially.
The licensor cannot revoke these freedoms as long as you follow the license terms.
Under the following terms:
Attribution — You must give appropriate credit, provide a link to the license, and
indicate if changes were made. You may do so in any reasonable manner, but not in any way
that suggests the licensor endorses you or your use.
ShareAlike — If you remix, transform, or build upon the material, you must distribute
your contributions under the same license as the original.
No additional restrictions — You may not apply legal terms or technological measures that
legally restrict others from doing anything the license permits.
Notices:
You do not have to comply with the license for elements of the material in the public
domain or where your use is permitted by an applicable exception or limitation.
No warranties are given. The license may not give you all of the permissions necessary
for your intended use. For example, other rights such as publicity, privacy, or moral
rights may limit how you use the material.
For more details:
http://creativecommons.org/licenses/by-sa/3.0/