Add AGPL license (#1565)

From the [public
announcement](https://discord.com/channels/1079389589950705684/1079395108501331990/1276310695964835910)
on Discord:

> We've been progressing very far with the project and I started
wondering what would be the best course of action to protect the work of
existing and future contributors. I personally consider contributions to
a decompilation project as creative work. Therefore it is my desire to
protect this creative work from being re-claimed by other people. This
is especially true in the light of the ability of modding the existing
decompiled code and create derivative work.
> 
> I talked privately with the current most active contributors. And me,
@sozud , @bismurphy and @joshlory so far agreed on pushing through the
AGPLv3 license for all the decompiled code in `sotn-decomp/src`,
excluding any third party code and decompiled code from the PSX SDK. But
I've been wanting to ask all of you if you are fine your code to be
licensed and protected under the AGPLv3 terms.
>
>
https://raw.githubusercontent.com/Xeeynamo/sotn-decomp/89686514916cabd0dd88ae0387f749a889c19e05/src/LICENSE
> 
> I put and all the contributors, which can be accessed to the page
https://github.com/Xeeynamo/sotn-decomp/graphs/contributors . Again,
this will work for existing and future contributors. In the license I
put my full name as I will be responsible of any legality. And I
understand not every contributor wants to disclose their identity.
Please give an approval to my latest PR if you do not have any
objection. If not, please write here publicly.
>
> PS. I understand past contributors will either not see the message
above or decide to ignore it. If I do not hear from anyone of the
contributors for more than one week between those who did not interact
with me or the server, I will still go ahead and apply the license. It
is not in my intention to ignore past contributors. But I do not want
contributors who have been inactive for months or years to be a blocker.
Please do not mistake this as an act of malevolence.

---------

Co-authored-by: Joey Murphy <[email protected]>

Makefile

@@ -135,7 +135,7 @@ clean:
 	git clean -fdx function_calls/
 	git clean -fdx sotn_calltree.txt
 
-format: format-src format-tools format-symbols
+format: format-src format-tools format-symbols format-license
 
 format-src: bin/clang-format
 	@# find explainer:
@@ -176,6 +176,13 @@ format-symbols:
 	./tools/symbols.py remove-orphans config/splat.us.tt_000.yaml
 	./tools/symbols.py remove-orphans config/splat.hd.tt_000.yaml
 	./tools/symbols.py remove-orphans config/splat.us.stmad.yaml
+format-license:
+	find src/ | grep -E '\.c$$|\.h$$' | grep -vE 'PsyCross|mednafen|psxsdk|3rd|saturn/lib' | python3 ./tools/lint-license.py - AGPL-3.0-or-later
+	python3 ./tools/lint-license.py include/game.h AGPL-3.0-or-later
+	python3 ./tools/lint-license.py include/entity.h AGPL-3.0-or-later
+	python3 ./tools/lint-license.py include/items.h AGPL-3.0-or-later
+	python3 ./tools/lint-license.py include/lba.h AGPL-3.0-or-later
+	python3 ./tools/lint-license.py include/memcard.h AGPL-3.0-or-later
 
 # fast-format
 ff: MAKEFLAGS += --jobs

include/entity.h

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 /**
  * Custom Entity Subtypes
  */

include/game.h

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #ifndef GAME_H
 #define GAME_H
 #include "common.h"

include/items.h

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 typedef enum ItemSlots {
     LEFT_HAND_SLOT,
     RIGHT_HAND_SLOT,

include/lba.h

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 
 #define OFF_WARNING_TIM 24545
 #define LEN_WARNING_TIM 327700

include/memcard.h

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #ifndef MEMCARD_H
 #define MEMCARD_H
 

src/LICENSE

@@ -0,0 +1,30 @@
+sotn-decomp, re-interpretation of the game Castlevania:Symphony of the Night
+Copyright (C) 2024  Luciano Ciccariello and all the contributors
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU Affero General Public License as published
+by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
+
+You should have received a copy of the GNU Affero General Public License
+along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+If your software can interact with users remotely through a computer
+network, you should also make sure that it provides a way for users to
+get its source. For example, if your program is a web application, its
+interface could display a "Source" link that leads users to an archive
+of the code. There are many ways you could offer source, and different
+solutions will be better for different programs; see section 13 for the
+specific requirements.
+
+You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU AGPL,
+see <https://www.gnu.org/licenses/>.

src/config_us.h

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include "game.h"
 
 // clang-format off

src/destroy_entities_from_index.h

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #ifndef HARD_LINK
 void DestroyEntitiesFromIndex(s16 index) {
     Entity* entity = &g_Entities[index];

src/destroy_entity.h

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #ifndef HARD_LINK
 void DestroyEntity(Entity* entity) {
     s32 i;

src/dra/42398.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include "dra.h"
 #include "dra_bss.h"
 #include "lba.h"

src/dra/47BB8.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include "dra.h"
 #include "lba.h"
 

src/dra/4A538.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include "dra.h"
 #include "dra_bss.h"
 

src/dra/5087C.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include "dra.h"
 #include "dra_bss.h"
 #include "menu.h"

src/dra/5D5BC.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include "dra.h"
 #include "dra_bss.h"
 #include "objects.h"

src/dra/627C4.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include "dra.h"
 #include "dra_bss.h"
 #include "objects.h"

src/dra/63ED4.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include "dra.h"
 #include "dra_bss.h"
 #include "objects.h"

src/dra/692E8.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include "dra.h"
 #include "dra_bss.h"
 #include "sfx.h"

src/dra/6D59C.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include "dra.h"
 #include "dra_bss.h"
 #include "sfx.h"

src/dra/704D0.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include "dra.h"
 #include "dra_bss.h"
 #include "sfx.h"

src/dra/71830.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include "dra.h"
 #include "dra_bss.h"
 #include "objects.h"

src/dra/72BB0.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include "dra.h"
 #include "dra_bss.h"
 #include "sfx.h"

src/dra/75F54.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include "dra.h"
 #include "dra_bss.h"
 #include "objects.h"

src/dra/78D0C.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include "dra.h"
 #include "objects.h"
 #include "sfx.h"

src/dra/7A4D0.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include "dra.h"
 #include "dra_bss.h"
 #include "objects.h"

src/dra/7E4BC.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include "dra.h"
 #include "dra_bss.h"
 #include "objects.h"

src/dra/843B0.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include "dra.h"
 #include "objects.h"
 #include "sfx.h"

src/dra/8A0A4.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include "dra.h"
 #include "dra_bss.h"
 #include "sfx.h"

src/dra/8D3E8.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include "dra.h"
 #include "dra_bss.h"
 #include "objects.h"

src/dra/91EBC.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include "dra.h"
 #include "dra_bss.h"
 #include "objects.h"

src/dra/92F60.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include "dra.h"
 #include "dra_bss.h"
 #include "objects.h"

src/dra/93290.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include "dra.h"
 #include "dra_bss.h"
 #include "objects.h"

src/dra/93BDC.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include "dra.h"
 #include "dra_bss.h"
 #include "objects.h"

src/dra/94F50.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include "dra.h"
 #include "dra_bss.h"
 #include "objects.h"

src/dra/953A0.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include "dra.h"
 #include "dra_bss.h"
 #include "objects.h"

src/dra/bss.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include <game.h>
 #include <psxsdk/libsnd.h>
 #include "disk.h"

src/dra/cd.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include "dra.h"
 #include "dra_bss.h"
 #include "lba.h"

src/dra/collider.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include "dra.h"
 
 typedef enum {

src/dra/config_jp.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include "game.h"
 
 // !!! IMPORTANT !!!

src/dra/config_us.c

@@ -1 +1,2 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include "../config_us.h"

src/dra/d_10798.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include "dra.h"
 
 AnimationFrame D_800B0798[] = {

src/dra/d_24CEC.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include <game.h>
 
 u8 D_800C4CEC[] = {

src/dra/d_2F324.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include <game.h>
 
 typedef struct {

src/dra/d_3B0D4.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include "dra.h"
 
 u16 D_800DB0D4[] = {

src/dra/d_C910.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include "dra.h"
 
 #if defined(VERSION_US)

src/dra/d_CD80.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include "dra.h"
 
 Vram g_Vram = {

src/dra/d_CF74.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include "dra.h"
 #include "sfx.h"
 

src/dra/d_DBD4.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include "dra.h"
 
 AnimationFrame D_800ADBD4[] = {

src/dra/d_E294.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include "dra.h"
 
 AnimationFrame D_800AE294[] = {

src/dra/demo.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include "dra.h"
 
 extern u8 D_800A243C[32] = {

src/dra/dra.h

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #ifndef DRA_H
 #define DRA_H
 

src/dra/dra_bss.h

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include "dra.h"
 
 // BSS shared

src/dra/dra_header.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include <game.h>
 
 typedef void (*Entrypoint)(void);

src/dra/lang_us.c

@@ -1 +1,2 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include "game.h"

src/dra/lba_stage.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include "game.h"
 
 // clang-format off

src/dra/loading.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include "dra.h"
 #include "dra_bss.h"
 #include "sfx.h"

src/dra/menu.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include "dra.h"
 #include "dra_bss.h"
 #include "menu.h"

src/dra/menu.h

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #ifndef MENU_H
 #define MENU_H
 

src/dra/pads.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include "dra.h"
 
 // BSS

src/dra/play.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include "dra.h"
 #include "dra_bss.h"
 #include "sfx.h"

src/dra/save_mgr.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include "dra.h"
 #include "dra_bss.h"
 #include "../save_mgr.h"

src/dra/save_mgr_pre.c

@@ -1,2 +1,3 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include "dra.h"
 #include "../save_mgr_pre.h"

src/main/main.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include "common.h"
 #include "game.h"
 

src/main/psxsdk/libsnd/sstick.c

@@ -1,4 +1,3 @@
-
 #include "libsnd_i.h"
 
 void SsSetTickMode(long tick_mode) {

src/pc/io.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include <stdio.h>
 #include <stdlib.h>
 #include "pc.h"

src/pc/log.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include <log.h>
 #include <stdarg.h>
 #include <stdio.h>

src/pc/null.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 // something is off with the headers in this target
 #include "../../include/common.h"
 #include "../../include/psxsdk/libgpu.h"

src/pc/pc.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include <common.h>
 #include <stdarg.h>
 #include <stdio.h>

src/pc/pc.h

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #ifndef PC_H
 #define PC_H
 

src/pc/pl_arc.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include <game.h>
 #include <log.h>
 #include "pc.h"

src/pc/pl_ric.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include <game.h>
 
 extern PlayerOvl RIC_player;

src/pc/plat_unix.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
 #include <common.h>
 #include <log.h>
 #include <stdio.h>