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.. -*- mode: rst; coding: utf-8 -*-
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============================================
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Star Traders: A Game of Interstellar Trading
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============================================
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**Copyright © 1990–2024, John Zaitseff.**
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The Star Traders game is free software that is distributed under the
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terms of the GNU General Public License. The actual copyright on this
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program (“the Program”, in the language of the License) belongs to John
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Zaitseff, although the text of the License itself belongs to the Free
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Software Foundation.
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Even though the GNU General Public License does *not* require you to send
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your modifications back to the author, it is considered “good form” to do
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so, as this allows your modifications to be incorporated into future
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versions of the program, allowing others to benefit from them.
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==========================
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GNU GENERAL PUBLIC LICENSE
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==========================
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--------------------------
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Version 3, 29 June 2007
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--------------------------
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| Copyright © 2007 Free Software Foundation, Inc.
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| https://fsf.org/
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*Everyone is permitted to copy and distribute verbatim copies of this
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license document, but changing it is not allowed.*
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Preamble
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========
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The GNU General Public License is a free, copyleft license for software
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and other kinds of works.
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The licenses for most software and other practical works are designed to
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GNU General Public License is intended to guarantee your freedom to share
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|
||
9. Acceptance Not Required for Having Copies.
|
||
---------------------------------------------
|
||
|
||
You are not required to accept this License in order to receive or run a
|
||
copy of the Program. Ancillary propagation of a covered work occurring
|
||
solely as a consequence of using peer-to-peer transmission to receive a
|
||
copy likewise does not require acceptance. However, nothing other than
|
||
this License grants you permission to propagate or modify any covered
|
||
work. These actions infringe copyright if you do not accept this
|
||
License. Therefore, by modifying or propagating a covered work, you
|
||
indicate your acceptance of this License to do so.
|
||
|
||
|
||
10. Automatic Licensing of Downstream Recipients.
|
||
-------------------------------------------------
|
||
|
||
Each time you convey a covered work, the recipient automatically receives
|
||
a license from the original licensors, to run, modify and propagate that
|
||
work, subject to this License. You are not responsible for enforcing
|
||
compliance by third parties with this License.
|
||
|
||
An “entity transaction” is a transaction transferring control of an
|
||
organization, or substantially all assets of one, or subdividing an
|
||
organization, or merging organizations. If propagation of a covered work
|
||
results from an entity transaction, each party to that transaction who
|
||
receives a copy of the work also receives whatever licenses to the work
|
||
the party’s predecessor in interest had or could give under the previous
|
||
paragraph, plus a right to possession of the Corresponding Source of the
|
||
work from the predecessor in interest, if the predecessor has it or can
|
||
get it with reasonable efforts.
|
||
|
||
You may not impose any further restrictions on the exercise of the rights
|
||
granted or affirmed under this License. For example, you may not impose
|
||
a license fee, royalty, or other charge for exercise of rights granted
|
||
under this License, and you may not initiate litigation (including a
|
||
cross-claim or counterclaim in a lawsuit) alleging that any patent claim
|
||
is infringed by making, using, selling, offering for sale, or importing
|
||
the Program or any portion of it.
|
||
|
||
|
||
11. Patents.
|
||
------------
|
||
|
||
A “contributor” is a copyright holder who authorizes use under this
|
||
License of the Program or a work on which the Program is based. The work
|
||
thus licensed is called the contributor’s “contributor version”.
|
||
|
||
A contributor’s “essential patent claims” are all patent claims owned or
|
||
controlled by the contributor, whether already acquired or hereafter
|
||
acquired, that would be infringed by some manner, permitted by this
|
||
License, of making, using, or selling its contributor version, but do not
|
||
include claims that would be infringed only as a consequence of further
|
||
modification of the contributor version. For purposes of this
|
||
definition, “control” includes the right to grant patent sublicenses in a
|
||
manner consistent with the requirements of this License.
|
||
|
||
Each contributor grants you a non-exclusive, worldwide, royalty-free
|
||
patent license under the contributor’s essential patent claims, to make,
|
||
use, sell, offer for sale, import and otherwise run, modify and propagate
|
||
the contents of its contributor version.
|
||
|
||
In the following three paragraphs, a “patent license” is any express
|
||
agreement or commitment, however denominated, not to enforce a patent
|
||
(such as an express permission to practice a patent or covenant not to
|
||
sue for patent infringement). To “grant” such a patent license to a
|
||
party means to make such an agreement or commitment not to enforce a
|
||
patent against the party.
|
||
|
||
If you convey a covered work, knowingly relying on a patent license, and
|
||
the Corresponding Source of the work is not available for anyone to copy,
|
||
free of charge and under the terms of this License, through a publicly
|
||
available network server or other readily accessible means, then you must
|
||
either (1) cause the Corresponding Source to be so available, or
|
||
(2) arrange to deprive yourself of the benefit of the patent license for
|
||
this particular work, or (3) arrange, in a manner consistent with the
|
||
requirements of this License, to extend the patent license to downstream
|
||
recipients. “Knowingly relying” means you have actual knowledge that,
|
||
but for the patent license, your conveying the covered work in a country,
|
||
or your recipient’s use of the covered work in a country, would infringe
|
||
one or more identifiable patents in that country that you have reason to
|
||
believe are valid.
|
||
|
||
If, pursuant to or in connection with a single transaction or
|
||
arrangement, you convey, or propagate by procuring conveyance of, a
|
||
covered work, and grant a patent license to some of the parties receiving
|
||
the covered work authorizing them to use, propagate, modify or convey a
|
||
specific copy of the covered work, then the patent license you grant is
|
||
automatically extended to all recipients of the covered work and works
|
||
based on it.
|
||
|
||
A patent license is “discriminatory” if it does not include within the
|
||
scope of its coverage, prohibits the exercise of, or is conditioned on
|
||
the non-exercise of one or more of the rights that are specifically
|
||
granted under this License. You may not convey a covered work if you are
|
||
a party to an arrangement with a third party that is in the business of
|
||
distributing software, under which you make payment to the third party
|
||
based on the extent of your activity of conveying the work, and under
|
||
which the third party grants, to any of the parties who would receive the
|
||
covered work from you, a discriminatory patent license (a) in connection
|
||
with copies of the covered work conveyed by you (or copies made from
|
||
those copies), or (b) primarily for and in connection with specific
|
||
products or compilations that contain the covered work, unless you
|
||
entered into that arrangement, or that patent license was granted, prior
|
||
to 28 March 2007.
|
||
|
||
Nothing in this License shall be construed as excluding or limiting any
|
||
implied license or other defenses to infringement that may otherwise be
|
||
available to you under applicable patent law.
|
||
|
||
|
||
12. No Surrender of Others’ Freedom.
|
||
------------------------------------
|
||
|
||
If conditions are imposed on you (whether by court order, agreement or
|
||
otherwise) that contradict the conditions of this License, they do not
|
||
excuse you from the conditions of this License. If you cannot convey a
|
||
covered work so as to satisfy simultaneously your obligations under this
|
||
License and any other pertinent obligations, then as a consequence you
|
||
may not convey it at all. For example, if you agree to terms that
|
||
obligate you to collect a royalty for further conveying from those to
|
||
whom you convey the Program, the only way you could satisfy both those
|
||
terms and this License would be to refrain entirely from conveying the
|
||
Program.
|
||
|
||
|
||
13. Use with the GNU Affero General Public License.
|
||
---------------------------------------------------
|
||
|
||
Notwithstanding any other provision of this License, you have permission
|
||
to link or combine any covered work with a work licensed under version 3
|
||
of the GNU Affero General Public License into a single combined work, and
|
||
to convey the resulting work. The terms of this License will continue to
|
||
apply to the part which is the covered work, but the special requirements
|
||
of the GNU Affero General Public License, section 13, concerning
|
||
interaction through a network will apply to the combination as such.
|
||
|
||
|
||
14. Revised Versions of this License.
|
||
-------------------------------------
|
||
|
||
The Free Software Foundation may publish revised and/or new versions of
|
||
the GNU General Public License from time to time. Such new versions will
|
||
be similar in spirit to the present version, but may differ in detail to
|
||
address new problems or concerns.
|
||
|
||
Each version is given a distinguishing version number. If the Program
|
||
specifies that a certain numbered version of the GNU General Public
|
||
License “or any later version” applies to it, you have the option of
|
||
following the terms and conditions either of that numbered version or of
|
||
any later version published by the Free Software Foundation. If the
|
||
Program does not specify a version number of the GNU General Public
|
||
License, you may choose any version ever published by the Free Software
|
||
Foundation.
|
||
|
||
If the Program specifies that a proxy can decide which future versions of
|
||
the GNU General Public License can be used, that proxy’s public statement
|
||
of acceptance of a version permanently authorizes you to choose that
|
||
version for the Program.
|
||
|
||
Later license versions may give you additional or different permissions.
|
||
However, no additional obligations are imposed on any author or copyright
|
||
holder as a result of your choosing to follow a later version.
|
||
|
||
|
||
15. Disclaimer of Warranty.
|
||
---------------------------
|
||
|
||
THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
|
||
APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
|
||
HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM “AS IS” WITHOUT WARRANTY
|
||
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
|
||
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||
PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE
|
||
PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE
|
||
COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
|
||
|
||
|
||
16. Limitation of Liability.
|
||
----------------------------
|
||
|
||
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
|
||
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
|
||
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING
|
||
ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF
|
||
THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO
|
||
LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU
|
||
OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
|
||
PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
|
||
POSSIBILITY OF SUCH DAMAGES.
|
||
|
||
|
||
17. Interpretation of Sections 15 and 16.
|
||
-----------------------------------------
|
||
|
||
If the disclaimer of warranty and limitation of liability provided above
|
||
cannot be given local legal effect according to their terms, reviewing
|
||
courts shall apply local law that most closely approximates an absolute
|
||
waiver of all civil liability in connection with the Program, unless a
|
||
warranty or assumption of liability accompanies a copy of the Program in
|
||
return for a fee.
|
||
|
||
|
||
**END OF TERMS AND CONDITIONS**
|
||
|
||
|
||
How to Apply These Terms to Your New Programs
|
||
=============================================
|
||
|
||
If you develop a new program, and you want it to be of the greatest
|
||
possible use to the public, the best way to achieve this is to make it
|
||
free software which everyone can redistribute and change under these
|
||
terms.
|
||
|
||
To do so, attach the following notices to the program. It is safest to
|
||
attach them to the start of each source file to most effectively state
|
||
the exclusion of warranty; and each file should have at least the
|
||
“copyright” line and a pointer to where the full notice is found.
|
||
|
||
.. parsed-literal::
|
||
|
||
*one line to give the program's name and a brief idea of what it does.*
|
||
Copyright (C) *year* *name of author*
|
||
|
||
This program is free software: you can redistribute it and/or modify
|
||
it under the terms of the GNU General Public License as published by
|
||
the Free Software Foundation, either version 3 of the License, or
|
||
(at your option) any later version.
|
||
|
||
This program is distributed in the hope that it will be useful,
|
||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
GNU General Public License for more details.
|
||
|
||
You should have received a copy of the GNU General Public License
|
||
along with this program. If not, see <https://www.gnu.org/licenses/>.
|
||
|
||
Also add information on how to contact you by electronic and paper mail.
|
||
|
||
If the program does terminal interaction, make it output a short notice
|
||
like this when it starts in an interactive mode:
|
||
|
||
.. parsed-literal::
|
||
|
||
*program* Copyright (C) *year* *name of author*
|
||
This program comes with ABSOLUTELY NO WARRANTY; for details type \`show w'.
|
||
This is free software, and you are welcome to redistribute it
|
||
under certain conditions; type \`show c' for details.
|
||
|
||
The hypothetical commands ``show w`` and ``show c`` should show the
|
||
appropriate parts of the General Public License. Of course, your
|
||
program’s commands might be different; for a GUI interface, you would use
|
||
an “about box”.
|
||
|
||
You should also get your employer (if you work as a programmer) or
|
||
school, if any, to sign a “copyright disclaimer” for the program, if
|
||
necessary. For more information on this, and how to apply and follow the
|
||
GNU GPL, see https://www.gnu.org/licenses/.
|
||
|
||
The GNU General Public License does not permit incorporating your program
|
||
into proprietary programs. If your program is a subroutine library, you
|
||
may consider it more useful to permit linking proprietary applications
|
||
with the library. If this is what you want to do, use the GNU Lesser
|
||
General Public License instead of this License. But first, please read
|
||
https://www.gnu.org/licenses/why-not-lgpl.html.
|