OpenMaidEngine/THIRD_PARTY_NOTICES.md

Third-party notices and research acknowledgments

This file records incorporated third-party code and prior public research that materially informed this project. It does not license Eushully game assets or code, and no original game files are distributed with this repository. The repository's MIT license covers authored project work only; material identified below remains subject to its own terms or is acknowledged as prior research rather than relicensed here.

Eushully-Decompiler research

Early SYS4 instruction decoding and the initial opcode ABI/catalog were informed by Kelebek's public Eushully-Decompiler project. That work established a valuable starting point and accelerated this reimplementation. Historical and per-opcode provenance is preserved in vm-map/opcodes.toml.

This repository does not vendor the upstream source files. Its opcode registry combines that foundational catalog with independent script-corpus analysis, native AGE.EXE investigation, runtime probes, and reimplementation testing. This acknowledgment is not a claim that the project was developed under a formal clean-room process.

GARbro AGF decoding algorithm

engine/Age.Engine/Sys4/AgfDecoder.cs ports the AGF decoding algorithm from GARbro's ArcFormats/Eushully/ImageAGF.cs, Copyright (c) 2014-2020 morkt, under the MIT License:

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.