From b6ee4bf36e8262f1cf3a2faf2e7fddbf693c8e07 Mon Sep 17 00:00:00 2001
From: Sam Lantinga <[EMAIL REDACTED]>
Date: Tue, 16 Dec 2025 00:35:07 -0800
Subject: [PATCH] Maelstrom 4.0 is relicensed under the Zlib license
---
CMakeLists.txt | 2 +-
COPYING | 23 ++-
COPYING.GPL | 280 ------------------------------
Changelog | 6 +-
README | 6 +-
README.simple | 6 +-
game/Localization.h | 21 +++
game/MacDialog.cpp | 38 ++--
game/MacDialog.h | 37 ++--
game/Maelstrom.h | 37 ++--
game/MaelstromUI.cpp | 37 ++--
game/MaelstromUI.h | 37 ++--
game/Maelstrom_Globals.h | 37 ++--
game/about.cpp | 37 ++--
game/about.h | 37 ++--
game/colortable.h | 31 ++--
game/continue.cpp | 31 ++--
game/continue.h | 37 ++--
game/controls.cpp | 37 ++--
game/controls.h | 37 ++--
game/fastrand.cpp | 37 ++--
game/fastrand.h | 31 ++--
game/game.cpp | 37 ++--
game/game.h | 37 ++--
game/gameinfo.cpp | 37 ++--
game/gameinfo.h | 37 ++--
game/gameover.cpp | 37 ++--
game/gameover.h | 37 ++--
game/init.cpp | 37 ++--
game/init.h | 31 ++--
game/load.cpp | 31 ++--
game/load.h | 37 ++--
game/lobby.cpp | 37 ++--
game/lobby.h | 37 ++--
game/main.cpp | 37 ++--
game/main.h | 37 ++--
game/make.cpp | 37 ++--
game/make.h | 31 ++--
game/myerror.cpp | 37 ++--
game/myerror.h | 37 ++--
game/netplay.cpp | 37 ++--
game/netplay.h | 37 ++--
game/object.cpp | 37 ++--
game/object.h | 37 ++--
game/objects.cpp | 37 ++--
game/objects.h | 37 ++--
game/packet.h | 37 ++--
game/player.cpp | 37 ++--
game/player.h | 37 ++--
game/protocol.h | 37 ++--
game/rect.cpp | 37 ++--
game/rect.h | 37 ++--
game/replay.cpp | 37 ++--
game/replay.h | 37 ++--
game/scores.cpp | 37 ++--
game/scores.h | 37 ++--
game/shinobi.h | 37 ++--
game/steam.cpp | 37 ++--
game/steam.h | 37 ++--
maclib/COPYING | 2 +-
maclib/Mac_Compat.h | 2 +-
maclib/Mac_FontServ.cpp | 2 +-
maclib/Mac_FontServ.h | 2 +-
maclib/Mac_Resource.cpp | 38 ++--
maclib/Mac_Resource.h | 39 ++---
maclib/Mac_Sound.cpp | 2 +-
maclib/Mac_Sound.h | 2 +-
maclib/Mac_Wave.cpp | 34 ++--
maclib/Mac_Wave.h | 28 +--
maclib/bitesex.h | 2 +-
maclib/macbinary.h | 34 ++--
maclib/macres.cpp | 28 +--
screenlib/COPYING | 2 +-
screenlib/SDL_FrameBuf.cpp | 2 +-
screenlib/SDL_FrameBuf.h | 2 +-
screenlib/UIArea.cpp | 2 +-
screenlib/UIArea.h | 2 +-
screenlib/UIBaseElement.cpp | 2 +-
screenlib/UIBaseElement.h | 2 +-
screenlib/UIContainer.cpp | 2 +-
screenlib/UIContainer.h | 2 +-
screenlib/UIDialog.cpp | 2 +-
screenlib/UIDialog.h | 2 +-
screenlib/UIDialogButton.cpp | 2 +-
screenlib/UIDialogButton.h | 2 +-
screenlib/UIDrawEngine.cpp | 2 +-
screenlib/UIDrawEngine.h | 2 +-
screenlib/UIElement.cpp | 2 +-
screenlib/UIElement.h | 2 +-
screenlib/UIElementButton.cpp | 2 +-
screenlib/UIElementButton.h | 2 +-
screenlib/UIElementCheckbox.cpp | 2 +-
screenlib/UIElementCheckbox.h | 2 +-
screenlib/UIElementDropdown.cpp | 2 +-
screenlib/UIElementDropdown.h | 2 +-
screenlib/UIElementEditbox.cpp | 2 +-
screenlib/UIElementEditbox.h | 2 +-
screenlib/UIElementRadio.cpp | 2 +-
screenlib/UIElementRadio.h | 2 +-
screenlib/UIElementThumbstick.cpp | 2 +-
screenlib/UIElementThumbstick.h | 2 +-
screenlib/UIFontInterface.h | 2 +-
screenlib/UIImageInterface.h | 2 +-
screenlib/UIManager.cpp | 2 +-
screenlib/UIManager.h | 2 +-
screenlib/UIPanel.cpp | 2 +-
screenlib/UIPanel.h | 2 +-
screenlib/UISoundInterface.h | 2 +-
screenlib/UITemplates.cpp | 2 +-
screenlib/UITemplates.h | 2 +-
screenlib/UITexture.cpp | 2 +-
screenlib/UITexture.h | 2 +-
112 files changed, 1121 insertions(+), 1407 deletions(-)
delete mode 100644 COPYING.GPL
diff --git a/CMakeLists.txt b/CMakeLists.txt
index f9176074..38dbae82 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -183,7 +183,7 @@ install(TARGETS Maelstrom DESTINATION "${GAME_INSTALLDIR}")
install(DIRECTORY Data DESTINATION "${GAME_INSTALLDIR}")
file(GLOB docs "Docs/*.txt" "README*")
-install(FILES ${docs} "COPYING" "COPYING.GPL" DESTINATION "${GAME_INSTALLDIR}/Docs")
+install(FILES ${docs} "COPYING" DESTINATION "${GAME_INSTALLDIR}/Docs")
if(NOT TARGET uninstall)
configure_file(cmake/cmake_uninstall.cmake.in cmake_uninstall.cmake IMMEDIATE @ONLY)
diff --git a/COPYING b/COPYING
index 7b573d81..b304b5d1 100644
--- a/COPYING
+++ b/COPYING
@@ -1,8 +1,23 @@
-The source code to Maelstrom 3.0 and higher has been released under
-the GNU General Public License which can be found in COPYING.GPL.
+The source code to Maelstrom 4.0 has been released under the Zlib license:
+--
+ Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
-The source code to the screenlib and maclib libraries has been released
-under the zlib license, which can be found in COPYING in those directories.
+ This software is provided 'as-is', without any express or implied
+ warranty. In no event will the authors be held liable for any damages
+ arising from the use of this software.
+
+ Permission is granted to anyone to use this software for any purpose,
+ including commercial applications, and to alter it and redistribute it
+ freely, subject to the following restrictions:
+
+ 1. The origin of this software must not be misrepresented; you must not
+ claim that you wrote the original software. If you use this software
+ in a product, an acknowledgment in the product documentation would be
+ appreciated but is not required.
+ 2. Altered source versions must be plainly marked as such, and must not be
+ misrepresented as being the original software.
+ 3. This notice may not be removed or altered from any source distribution.
+--
The artwork and animations in Maelstrom may be used under the terms
of the Creative Commons Attribution 3.0 license (unported):
diff --git a/COPYING.GPL b/COPYING.GPL
deleted file mode 100644
index 960fe746..00000000
--- a/COPYING.GPL
+++ /dev/null
@@ -1,280 +0,0 @@
- GNU GENERAL PUBLIC LICENSE
- Version 2, June 1991
-
- Copyright (C) 1989, 1991 Free Software Foundation, Inc.
- 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- Everyone is permitted to copy and distribute verbatim copies
- of this license document, but changing it is not allowed.
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- Preamble
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- The licenses for most software are designed to take away your
-freedom to share and change it. By contrast, the GNU General Public
-License is intended to guarantee your freedom to share and change free
-software--to make sure the software is free for all its users. This
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-Foundation's software and to any other program whose authors commit to
-using it. (Some other Free Software Foundation software is covered by
-the GNU Library General Public License instead.) You can apply it to
-your programs, too.
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- When we speak of free software, we are referring to freedom, not
-price. Our General Public Licenses are designed to make sure that you
-have the freedom to distribute copies of free software (and charge for
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- NO WARRANTY
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- 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
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diff --git a/Changelog b/Changelog
index 0f88c9da..505e97fd 100644
--- a/Changelog
+++ b/Changelog
@@ -1,5 +1,9 @@
-Maelstrom 3.0.7 -- Public GPL version
+Maelstrom 4.0.0 -- Open Source version
+
+Version 4.0.0:
+ Sam Lantinga - Tue Dec 16 00:04:08 PST 2025
+ * Updated for SDL 3.0
Version 3.0.7:
Sam Lantinga - Tue Feb 2 21:04:21 PST 2021
diff --git a/README b/README
index fbb0685e..5e4f8960 100644
--- a/README
+++ b/README
@@ -1,14 +1,14 @@
Maelstrom 3.0
-Maelstrom 3.0 is a GPL'd port of the original shareware game for the
+Maelstrom 3.0 is a C++ port of the original shareware game for the
Macintosh. It is a fast-action, high resolution (640x480) asteroids-like
game, with detailed graphics and original sounds.
-The GPL version of Maelstrom is not supported by Ambrosia Software,
+This version of Maelstrom is not supported by Ambrosia Software,
but is recommended highly! :)
-The latest GPL'd version of Maelstrom is available at:
+The latest version of Maelstrom is available at:
http://www.libsdl.org/projects/Maelstrom/
The original Macintosh version of this game is available at:
diff --git a/README.simple b/README.simple
index 19b9749c..30a265cc 100644
--- a/README.simple
+++ b/README.simple
@@ -1,14 +1,14 @@
Maelstrom 3.0
-Maelstrom 3.0 is a GPL'd port of the original shareware game for the
+Maelstrom 3.0 is a C++ port of the original shareware game for the
Macintosh. It is a fast-action, high resolution (640x480) asteroids-like
game, with detailed graphics and original sounds.
-The GPL version of Maelstrom is not supported by Ambrosia Software,
+This version of Maelstrom is not supported by Ambrosia Software,
but is recommended highly! :)
-The latest GPL'd version of Maelstrom is available at:
+The latest version of Maelstrom is available at:
http://www.libsdl.org/projects/Maelstrom/
The original Macintosh version of this game is available at:
diff --git a/game/Localization.h b/game/Localization.h
index a81f5b6b..e14933e8 100644
--- a/game/Localization.h
+++ b/game/Localization.h
@@ -1,3 +1,24 @@
+/*
+ Maelstrom: Open Source version of the classic game by Ambrosia Software
+ Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+
+ This software is provided 'as-is', without any express or implied
+ warranty. In no event will the authors be held liable for any damages
+ arising from the use of this software.
+
+ Permission is granted to anyone to use this software for any purpose,
+ including commercial applications, and to alter it and redistribute it
+ freely, subject to the following restrictions:
+
+ 1. The origin of this software must not be misrepresented; you must not
+ claim that you wrote the original software. If you use this software
+ in a product, an acknowledgment in the product documentation would be
+ appreciated but is not required.
+ 2. Altered source versions must be plainly marked as such, and must not be
+ misrepresented as being the original software.
+ 3. This notice may not be removed or altered from any source distribution.
+*/
+
#ifndef _LOCALIZATION_H
#define _LOCALIZATION_H
diff --git a/game/MacDialog.cpp b/game/MacDialog.cpp
index 7a06d871..f4024fce 100644
--- a/game/MacDialog.cpp
+++ b/game/MacDialog.cpp
@@ -1,25 +1,23 @@
/*
- Maelstrom: Open Source version of the classic game by Ambrosia Software
- Copyright (C) 1997-2011 Sam Lantinga
-
- 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 2 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, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-
- Sam Lantinga
- slouken@libsdl.org
+ Maelstrom: Open Source version of the classic game by Ambrosia Software
+ Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+
+ This software is provided 'as-is', without any express or implied
+ warranty. In no event will the authors be held liable for any damages
+ arising from the use of this software.
+
+ Permission is granted to anyone to use this software for any purpose,
+ including commercial applications, and to alter it and redistribute it
+ freely, subject to the following restrictions:
+
+ 1. The origin of this software must not be misrepresented; you must not
+ claim that you wrote the original software. If you use this software
+ in a product, an acknowledgment in the product documentation would be
+ appreciated but is not required.
+ 2. Altered source versions must be plainly marked as such, and must not be
+ misrepresented as being the original software.
+ 3. This notice may not be removed or altered from any source distribution.
*/
-
#include "../screenlib/SDL_FrameBuf.h"
#include "../screenlib/UIDialogButton.h"
#include "../screenlib/UIElementCheckbox.h"
diff --git a/game/MacDialog.h b/game/MacDialog.h
index 56a89688..cb797f66 100644
--- a/game/MacDialog.h
+++ b/game/MacDialog.h
@@ -1,23 +1,22 @@
/*
- Maelstrom: Open Source version of the classic game by Ambrosia Software
- Copyright (C) 1997-2011 Sam Lantinga
-
- 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 2 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, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-
- Sam Lantinga
- slouken@libsdl.org
+ Maelstrom: Open Source version of the classic game by Ambrosia Software
+ Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+
+ This software is provided 'as-is', without any express or implied
+ warranty. In no event will the authors be held liable for any damages
+ arising from the use of this software.
+
+ Permission is granted to anyone to use this software for any purpose,
+ including commercial applications, and to alter it and redistribute it
+ freely, subject to the following restrictions:
+
+ 1. The origin of this software must not be misrepresented; you must not
+ claim that you wrote the original software. If you use this software
+ in a product, an acknowledgment in the product documentation would be
+ appreciated but is not required.
+ 2. Altered source versions must be plainly marked as such, and must not be
+ misrepresented as being the original software.
+ 3. This notice may not be removed or altered from any source distribution.
*/
#ifndef _MacDialog_h
diff --git a/game/Maelstrom.h b/game/Maelstrom.h
index 266e853a..f1237f3e 100644
--- a/game/Maelstrom.h
+++ b/game/Maelstrom.h
@@ -1,23 +1,22 @@
/*
- Maelstrom: Open Source version of the classic game by Ambrosia Software
- Copyright (C) 1997-2011 Sam Lantinga
-
- 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 2 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, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-
- Sam Lantinga
- slouken@libsdl.org
+ Maelstrom: Open Source version of the classic game by Ambrosia Software
+ Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+
+ This software is provided 'as-is', without any expr
(Patch may be truncated, please check the link at the top of this post.)