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  1. The code is licensed under the GPL 3. The textures are licensed under CC-BY 4. The licensor is Gibeinumo.
  2. CC-BY 4.0
  3. This is a human-readable summary of (and not a substitute for) the license (https://creativecommons.org/licenses/by/4.0/legalcode). You are free to:
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  9. GNU GENERAL PUBLIC LICENSE
  10. Version 3, 29 June 2007
  11. Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
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  430. country that you have reason to believe are valid.
  431. If, pursuant to or in connection with a single transaction or
  432. arrangement, you convey, or propagate by procuring conveyance of, a
  433. covered work, and grant a patent license to some of the parties
  434. receiving the covered work authorizing them to use, propagate, modify
  435. or convey a specific copy of the covered work, then the patent license
  436. you grant is automatically extended to all recipients of the covered
  437. work and works based on it.
  438. A patent license is "discriminatory" if it does not include within
  439. the scope of its coverage, prohibits the exercise of, or is
  440. conditioned on the non-exercise of one or more of the rights that are
  441. specifically granted under this License. You may not convey a covered
  442. work if you are a party to an arrangement with a third party that is
  443. in the business of distributing software, under which you make payment
  444. to the third party based on the extent of your activity of conveying
  445. the work, and under which the third party grants, to any of the
  446. parties who would receive the covered work from you, a discriminatory
  447. patent license (a) in connection with copies of the covered work
  448. conveyed by you (or copies made from those copies), or (b) primarily
  449. for and in connection with specific products or compilations that
  450. contain the covered work, unless you entered into that arrangement,
  451. or that patent license was granted, prior to 28 March 2007.
  452. Nothing in this License shall be construed as excluding or limiting
  453. any implied license or other defenses to infringement that may
  454. otherwise be available to you under applicable patent law.
  455. 12. No Surrender of Others' Freedom.
  456. If conditions are imposed on you (whether by court order, agreement or
  457. otherwise) that contradict the conditions of this License, they do not
  458. excuse you from the conditions of this License. If you cannot convey a
  459. covered work so as to satisfy simultaneously your obligations under this
  460. License and any other pertinent obligations, then as a consequence you may
  461. not convey it at all. For example, if you agree to terms that obligate you
  462. to collect a royalty for further conveying from those to whom you convey
  463. the Program, the only way you could satisfy both those terms and this
  464. License would be to refrain entirely from conveying the Program.
  465. 13. Use with the GNU Affero General Public License.
  466. Notwithstanding any other provision of this License, you have
  467. permission to link or combine any covered work with a work licensed
  468. under version 3 of the GNU Affero General Public License into a single
  469. combined work, and to convey the resulting work. The terms of this
  470. License will continue to apply to the part which is the covered work,
  471. but the special requirements of the GNU Affero General Public License,
  472. section 13, concerning interaction through a network will apply to the
  473. combination as such.
  474. 14. Revised Versions of this License.
  475. The Free Software Foundation may publish revised and/or new versions of
  476. the GNU General Public License from time to time. Such new versions will
  477. be similar in spirit to the present version, but may differ in detail to
  478. address new problems or concerns.
  479. Each version is given a distinguishing version number. If the
  480. Program specifies that a certain numbered version of the GNU General
  481. Public License "or any later version" applies to it, you have the
  482. option of following the terms and conditions either of that numbered
  483. version or of any later version published by the Free Software
  484. Foundation. If the Program does not specify a version number of the
  485. GNU General Public License, you may choose any version ever published
  486. by the Free Software Foundation.
  487. If the Program specifies that a proxy can decide which future
  488. versions of the GNU General Public License can be used, that proxy's
  489. public statement of acceptance of a version permanently authorizes you
  490. to choose that version for the Program.
  491. Later license versions may give you additional or different
  492. permissions. However, no additional obligations are imposed on any
  493. author or copyright holder as a result of your choosing to follow a
  494. later version.
  495. 15. Disclaimer of Warranty.
  496. THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
  497. APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
  498. HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
  499. OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
  500. THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  501. PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
  502. IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
  503. ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
  504. 16. Limitation of Liability.
  505. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
  506. WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
  507. THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
  508. GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
  509. USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
  510. DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
  511. PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
  512. EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
  513. SUCH DAMAGES.
  514. 17. Interpretation of Sections 15 and 16.
  515. If the disclaimer of warranty and limitation of liability provided
  516. above cannot be given local legal effect according to their terms,
  517. reviewing courts shall apply local law that most closely approximates
  518. an absolute waiver of all civil liability in connection with the
  519. Program, unless a warranty or assumption of liability accompanies a
  520. copy of the Program in return for a fee.
  521. END OF TERMS AND CONDITIONS
  522. How to Apply These Terms to Your New Programs
  523. If you develop a new program, and you want it to be of the greatest
  524. possible use to the public, the best way to achieve this is to make it
  525. free software which everyone can redistribute and change under these terms.
  526. To do so, attach the following notices to the program. It is safest
  527. to attach them to the start of each source file to most effectively
  528. state the exclusion of warranty; and each file should have at least
  529. the "copyright" line and a pointer to where the full notice is found.
  530. <one line to give the program's name and a brief idea of what it does.>
  531. Copyright (C) <year> <name of author>
  532. This program is free software: you can redistribute it and/or modify
  533. it under the terms of the GNU General Public License as published by
  534. the Free Software Foundation, either version 3 of the License, or
  535. (at your option) any later version.
  536. This program is distributed in the hope that it will be useful,
  537. but WITHOUT ANY WARRANTY; without even the implied warranty of
  538. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  539. GNU General Public License for more details.
  540. You should have received a copy of the GNU General Public License
  541. along with this program. If not, see <https://www.gnu.org/licenses/>.
  542. Also add information on how to contact you by electronic and paper mail.
  543. If the program does terminal interaction, make it output a short
  544. notice like this when it starts in an interactive mode:
  545. <program> Copyright (C) <year> <name of author>
  546. This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
  547. This is free software, and you are welcome to redistribute it
  548. under certain conditions; type `show c' for details.
  549. The hypothetical commands `show w' and `show c' should show the appropriate
  550. parts of the General Public License. Of course, your program's commands
  551. might be different; for a GUI interface, you would use an "about box".
  552. You should also get your employer (if you work as a programmer) or school,
  553. if any, to sign a "copyright disclaimer" for the program, if necessary.
  554. For more information on this, and how to apply and follow the GNU GPL, see
  555. <https://www.gnu.org/licenses/>.
  556. The GNU General Public License does not permit incorporating your program
  557. into proprietary programs. If your program is a subroutine library, you
  558. may consider it more useful to permit linking proprietary applications with
  559. the library. If this is what you want to do, use the GNU Lesser General
  560. Public License instead of this License. But first, please read
  561. <https://www.gnu.org/licenses/why-not-lgpl.html>.