# Third-party notices

Mean Engine is proprietary (see `LICENSE.md`), but it is built with the open-source components below. Each is used
under its own license, which still applies to that component. Thank you to their authors.

| Component | Used for | License |
|---|---|---|
| .NET runtime and libraries (Microsoft) | Runs the editor and games | MIT |
| Roslyn / Microsoft.CodeAnalysis.CSharp (Microsoft) | Compiles C# scripts | MIT |
| Silk.NET (.NET Foundation) | Windows, input, OpenGL, OpenAL, Assimp bindings | MIT |
| Dear ImGui (Omar Cornut) via ImGui.NET (Eric Mellino) | Editor interface | MIT |
| Assimp (Open Asset Import Library team), native build via Silk.NET | Model import (FBX, OBJ, glTF, ...) | BSD 3-Clause |
| BepuPhysics v2 / BepuUtilities (Ross Nordby) | Physics | Apache License 2.0 |
| LiteNetLib (Ruslan Pyrch) | Multiplayer networking | MIT |
| NAudio (Mark Heath) | Sound on Windows | MIT |
| NAudio.Vorbis / NVorbis (Andrew Ward) | Ogg Vorbis sound | MIT |
| NLayer / NLayer.NAudioSupport (Mark Heath, Andrew Ward) | MP3 sound | MIT |
| OpenAL Soft (Chris Robinson), native build via Silk.NET | Sound on macOS and Linux | GNU LGPL 2.0 or later |
| StbImageSharp / StbImageWriteSharp (Roman Shapiro; stb by Sean Barrett) | Image loading and saving | Public domain / MIT |

## OpenAL Soft (LGPL)
OpenAL Soft is distributed as a separate shared library (`openal` / `soft_oal` / `libopenal`) next to the engine and
is loaded at run time; it is not compiled into Mean Engine. You may replace it with your own build of OpenAL Soft.
Its source code is available at <https://github.com/kcat/openal-soft> and its license at
<https://github.com/kcat/openal-soft/blob/master/COPYING>. If you would like us to send you the exact source of the
version we ship, contact us through the Mean Engine website.

## Apache License 2.0 (BepuPhysics)
BepuPhysics and BepuUtilities are licensed under the Apache License, Version 2.0
(<https://www.apache.org/licenses/LICENSE-2.0>). They are used unmodified.

## MIT License (applies to the MIT components above, each with its own copyright holder)
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.

## BSD 3-Clause License (Assimp)
Copyright (c) 2006-2024, assimp team. All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the
following conditions are met: (1) Redistributions of source code must retain the above copyright notice, this list of
conditions and the following disclaimer. (2) 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. (3) Neither the name of the assimp team, nor the names of its contributors 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 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.

## Built games
Games made with Mean Engine include the runtime parts of the components above (Roslyn stays in the editor; scripts
ship compiled). Every Build Game command copies this file next to the built game, so these notices travel with it.