NOTICE

settlemaker
Copyright (C) 2025-2026 Barry Gill <b@rry.im>

This program is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License version 3 as published
by the Free Software Foundation.

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/>.

SPDX-License-Identifier: GPL-3.0-only


UPSTREAM WORK
-------------

settlemaker is a TypeScript reimplementation of the Medieval Fantasy City
Generator by watabou (Oleg Dolya):

    TownGeneratorOS (Haxe)
    https://github.com/watabou/TownGeneratorOS
    Licensed GPL-3.0

    Medieval Fantasy City Generator
    https://watabou.itch.io/medieval-fantasy-city-generator

The generation core is a derivative work of TownGeneratorOS and is
therefore licensed GPL-3.0 as well.  Upstream publishes no explicit
"or (at your option) any later version" grant, so settlemaker is
GPL-3.0-only rather than GPL-3.0-or-later.

Files carrying directly ported algorithms mark the provenance inline
("Port of watabou's ..."):

    src/geom/geom-utils.ts        convexHull, obb, pierce
    src/generator/model.ts        buildFarms and the generation pipeline
    src/wards/farm.ts             splitField, round, getHousing
    src/generator/generation-params.ts
    src/wards/*                   ward layout and alley subdivision
    src/geom/voronoi.ts           Voronoi/Delaunay construction
    src/geom/polygon.ts           polygon operations


INTERFACING WORKS (not part of this program)
--------------------------------------------

Azgaar's Fantasy Map Generator
    https://github.com/Azgaar/Fantasy-Map-Generator
    MIT License, Copyright 2017-2024 Max Haniyeu (Azgaar)

FMG consumes settlemaker at arm's length over the URL API documented in
docs/url-api.md -- two separate programs exchanging data over a URL, not
a combined work.  Neither license reaches into the other.


SYMBOL LIBRARY
--------------

The SVG symbol library under web/public/symbols/ is original artwork,
licensed SEPARATELY from this program:

    CC-BY-4.0, with a Rendered Output Exception
    web/public/symbols/LICENSE
    Per-symbol authorship: web/public/symbols/CREDITS

Nothing in the GPL places that artwork under GPL terms, and nothing in
the CC licence places any part of this program under CC terms.

The exception waives attribution for rendered output: maps drawn with
the symbols carry no obligation to anyone, because attribution cannot
survive rasterisation and compositing into a larger map.  Attribution
applies only to redistributing the symbol library itself as artwork.