In this file are written the various licenses for the external code or libraries
used in this program.


This license applies to the following files:

include/win/GL/freeglut.h
include/win/GL/glut.h
include/win/GL/freeglut_ext.h
include/win/GL/freeglut_std.h
lib/win/libfreeglut.a
lib/win/libfreeglut_static.a


  Freeglut Copyright
  ------------------
  
  Freeglut code without an explicit copyright is covered by the following 
  copyright:
  
  Copyright (c) 1999-2000 Pawel W. Olszta. All Rights Reserved.
  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 or substantial portions of the Software.
  
  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 
  PAWEL W. OLSZTA 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.
  
  Except as contained in this notice,  the name of Pawel W. Olszta shall not be 
  used  in advertising  or otherwise to promote the sale, use or other dealings 
  in this Software without prior written authorization from Pawel W. Olszta.


-------------------------------------------------------------------------------

These licences apply to the following files:

include/win/GL/eglew.h
include/win/GL/glew.h
include/win/GL/glxglew.h
include/win/GL/wglew.h
lib/win/glew32.lib
lib/win/glew32s.lib


The OpenGL Extension Wrangler Library
Copyright (C) 2008-2016, Nigel Stewart <nigels[]users sourceforge net>
Copyright (C) 2002-2008, Milan Ikits <milan ikits[]ieee org>
Copyright (C) 2002-2008, Marcelo E. Magallon <mmagallo[]debian org>
Copyright (C) 2002, Lev Povalahev
All rights reserved.

Redistribution and use in source and binary forms, with or without 
modification, are permitted provided that the following conditions are met:

* Redistributions of source code must retain the above copyright notice, 
  this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice, 
  this list of conditions and the following disclaimer in the documentation 
  and/or other materials provided with the distribution.
* The name of the author may be used to endorse or promote products 
  derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
THE POSSIBILITY OF SUCH DAMAGE.


Mesa 3-D graphics library
Version:  7.0

Copyright (C) 1999-2007  Brian Paul   All Rights Reserved.

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
BRIAN PAUL 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.


Copyright (c) 2007 The Khronos Group Inc.

Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and/or associated documentation files (the
"Materials"), to deal in the Materials without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Materials, and to
permit persons to whom the Materials are 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 Materials.

THE MATERIALS ARE 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
MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.


-------------------------------------------------------------------------------

Most of the code present in "src/game/collision.c" comes (but has been modified)
from the exengine engine (https://github.com/eg-z/exengine). It is licensed under
the license below:


MIT License

Copyright (c) 2018 exezin

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.
