diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3eacf274..bd3eee2a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,3 +1,18 @@
+# Copyright © 2020 Vsevolod Kremianskii
+
+# 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 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 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/>.
+
 cmake_minimum_required(VERSION 3.10)
 
 project(reone)
diff --git a/COPYING b/COPYING
new file mode 100644
index 00000000..f288702d
--- /dev/null
+++ b/COPYING
@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
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+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    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 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 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/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  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 GPL, see
+<https://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.
diff --git a/COPYING.txt b/COPYING.txt
deleted file mode 100644
index 4d0f704f..00000000
--- a/COPYING.txt
+++ /dev/null
@@ -1,21 +0,0 @@
-MIT License
-
-Copyright (c) 2020 Vsevolod Kremianskii
-
-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.
diff --git a/cmake/FindMAD.cmake b/cmake/FindMAD.cmake
index df3b2c01..35930448 100644
--- a/cmake/FindMAD.cmake
+++ b/cmake/FindMAD.cmake
@@ -1,3 +1,18 @@
+# Copyright © 2020 Vsevolod Kremianskii
+
+# 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 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 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/>.
+
 find_path(MAD_INCLUDE_DIR mad.h DOC "MAD include directory")
 find_library(MAD_LIBRARY NAMES mad DOC "MAD library")
 
diff --git a/src/audio/player.cpp b/src/audio/player.cpp
index 491f87f7..5c5738f0 100644
--- a/src/audio/player.cpp
+++ b/src/audio/player.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "player.h"
 
 #include <algorithm>
diff --git a/src/audio/player.h b/src/audio/player.h
index 47c1c10d..dbff0689 100644
--- a/src/audio/player.h
+++ b/src/audio/player.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include <atomic>
diff --git a/src/audio/soundinstance.cpp b/src/audio/soundinstance.cpp
index dffafe36..abc3b475 100644
--- a/src/audio/soundinstance.cpp
+++ b/src/audio/soundinstance.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "soundinstance.h"
 
 #include "AL/al.h"
diff --git a/src/audio/soundinstance.h b/src/audio/soundinstance.h
index 585625cc..ebc1249b 100644
--- a/src/audio/soundinstance.h
+++ b/src/audio/soundinstance.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include <memory>
diff --git a/src/audio/stream.cpp b/src/audio/stream.cpp
index 721d6d03..b2601819 100644
--- a/src/audio/stream.cpp
+++ b/src/audio/stream.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "stream.h"
 
 #include <stdexcept>
diff --git a/src/audio/stream.h b/src/audio/stream.h
index b54cfef5..8304ffe0 100644
--- a/src/audio/stream.h
+++ b/src/audio/stream.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include <cstdint>
diff --git a/src/audio/types.h b/src/audio/types.h
index d219b0d3..61561ce5 100644
--- a/src/audio/types.h
+++ b/src/audio/types.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 namespace reone {
diff --git a/src/core/jobs.cpp b/src/core/jobs.cpp
index 3a35a8e0..c79b32cb 100644
--- a/src/core/jobs.cpp
+++ b/src/core/jobs.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "jobs.h"
 
 #include <thread>
diff --git a/src/core/jobs.h b/src/core/jobs.h
index c8524cc2..28e1d114 100644
--- a/src/core/jobs.h
+++ b/src/core/jobs.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include <boost/asio/thread_pool.hpp>
diff --git a/src/core/log.cpp b/src/core/log.cpp
index 6c676954..6ebadb05 100644
--- a/src/core/log.cpp
+++ b/src/core/log.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "log.h"
 
 #include <chrono>
diff --git a/src/core/log.h b/src/core/log.h
index 8e49d486..6812be37 100644
--- a/src/core/log.h
+++ b/src/core/log.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include <boost/format.hpp>
diff --git a/src/core/pathutil.cpp b/src/core/pathutil.cpp
index 4b1be5e7..a4571440 100644
--- a/src/core/pathutil.cpp
+++ b/src/core/pathutil.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "pathutil.h"
 
 #include <boost/algorithm/string.hpp>
diff --git a/src/core/pathutil.h b/src/core/pathutil.h
index 7dce5b7f..34de1624 100644
--- a/src/core/pathutil.h
+++ b/src/core/pathutil.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include <boost/filesystem.hpp>
diff --git a/src/core/random.cpp b/src/core/random.cpp
index f88c8b91..7db890db 100644
--- a/src/core/random.cpp
+++ b/src/core/random.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "random.h"
 
 #include <ctime>
diff --git a/src/core/random.h b/src/core/random.h
index 5d292f1e..10d88dbb 100644
--- a/src/core/random.h
+++ b/src/core/random.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 namespace reone {
diff --git a/src/core/streamutil.cpp b/src/core/streamutil.cpp
index afbc8848..878f2f7f 100644
--- a/src/core/streamutil.cpp
+++ b/src/core/streamutil.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "streamutil.h"
 
 #include <boost/iostreams/stream.hpp>
diff --git a/src/core/streamutil.h b/src/core/streamutil.h
index 0da0ad93..d9e28203 100644
--- a/src/core/streamutil.h
+++ b/src/core/streamutil.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include <istream>
diff --git a/src/core/types.h b/src/core/types.h
index 7884badc..bed6c041 100644
--- a/src/core/types.h
+++ b/src/core/types.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include <vector>
diff --git a/src/game/area.cpp b/src/game/area.cpp
index a8854607..6bbd693f 100644
--- a/src/game/area.cpp
+++ b/src/game/area.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "area.h"
 
 #include <boost/algorithm/string.hpp>
diff --git a/src/game/area.h b/src/game/area.h
index af8138e4..ccff3378 100644
--- a/src/game/area.h
+++ b/src/game/area.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include "../gui/types.h"
diff --git a/src/game/game.cpp b/src/game/game.cpp
index 806cff0b..309f5db0 100644
--- a/src/game/game.cpp
+++ b/src/game/game.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "game.h"
 
 #include "SDL2/SDL.h"
diff --git a/src/game/game.h b/src/game/game.h
index ab091196..81ecb70f 100644
--- a/src/game/game.h
+++ b/src/game/game.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include "../audio/types.h"
diff --git a/src/game/item.cpp b/src/game/item.cpp
index 56dc8392..096de942 100644
--- a/src/game/item.cpp
+++ b/src/game/item.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "item.h"
 
 #include <boost/algorithm/string.hpp>
diff --git a/src/game/item.h b/src/game/item.h
index 1655f0e0..7bc2ae61 100644
--- a/src/game/item.h
+++ b/src/game/item.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include "../resources/gfffile.h"
diff --git a/src/game/module.cpp b/src/game/module.cpp
index e5c0b56c..b172cc19 100644
--- a/src/game/module.cpp
+++ b/src/game/module.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "module.h"
 
 #include "../core/log.h"
diff --git a/src/game/module.h b/src/game/module.h
index 5f651740..d96d1cd8 100644
--- a/src/game/module.h
+++ b/src/game/module.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include <functional>
diff --git a/src/game/multiplayer/area.cpp b/src/game/multiplayer/area.cpp
index 62c8da6a..4bf9d831 100644
--- a/src/game/multiplayer/area.cpp
+++ b/src/game/multiplayer/area.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "area.h"
 
 #include "creature.h"
diff --git a/src/game/multiplayer/area.h b/src/game/multiplayer/area.h
index 68d3e8b9..8488071c 100644
--- a/src/game/multiplayer/area.h
+++ b/src/game/multiplayer/area.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include "../area.h"
diff --git a/src/game/multiplayer/callbacks.h b/src/game/multiplayer/callbacks.h
index 5962b367..e2e04d01 100644
--- a/src/game/multiplayer/callbacks.h
+++ b/src/game/multiplayer/callbacks.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include "creature.h"
diff --git a/src/game/multiplayer/command.cpp b/src/game/multiplayer/command.cpp
index 06219501..fc2bef25 100644
--- a/src/game/multiplayer/command.cpp
+++ b/src/game/multiplayer/command.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "command.h"
 
 #include <stdexcept>
diff --git a/src/game/multiplayer/command.h b/src/game/multiplayer/command.h
index a7b99849..4e321a1d 100644
--- a/src/game/multiplayer/command.h
+++ b/src/game/multiplayer/command.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include <string>
diff --git a/src/game/multiplayer/creature.cpp b/src/game/multiplayer/creature.cpp
index 7b3e2461..868fdae6 100644
--- a/src/game/multiplayer/creature.cpp
+++ b/src/game/multiplayer/creature.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "creature.h"
 
 #include "callbacks.h"
diff --git a/src/game/multiplayer/creature.h b/src/game/multiplayer/creature.h
index e298d565..d7005f52 100644
--- a/src/game/multiplayer/creature.h
+++ b/src/game/multiplayer/creature.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include "../object/creature.h"
diff --git a/src/game/multiplayer/door.cpp b/src/game/multiplayer/door.cpp
index 10c9131d..7f195f5a 100644
--- a/src/game/multiplayer/door.cpp
+++ b/src/game/multiplayer/door.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "door.h"
 
 #include "callbacks.h"
diff --git a/src/game/multiplayer/door.h b/src/game/multiplayer/door.h
index 9a1a8fe6..fcd723c7 100644
--- a/src/game/multiplayer/door.h
+++ b/src/game/multiplayer/door.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include "../object/door.h"
diff --git a/src/game/multiplayer/game.cpp b/src/game/multiplayer/game.cpp
index e288fe44..d50614d5 100644
--- a/src/game/multiplayer/game.cpp
+++ b/src/game/multiplayer/game.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "game.h"
 
 #include "../../core/log.h"
diff --git a/src/game/multiplayer/game.h b/src/game/multiplayer/game.h
index 8de8307d..a25e50bb 100644
--- a/src/game/multiplayer/game.h
+++ b/src/game/multiplayer/game.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include "../game.h"
diff --git a/src/game/multiplayer/module.cpp b/src/game/multiplayer/module.cpp
index b582c615..8ba42b3a 100644
--- a/src/game/multiplayer/module.cpp
+++ b/src/game/multiplayer/module.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "module.h"
 
 #include "area.h"
diff --git a/src/game/multiplayer/module.h b/src/game/multiplayer/module.h
index e96d4bef..7ffab8ce 100644
--- a/src/game/multiplayer/module.h
+++ b/src/game/multiplayer/module.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include "../module.h"
diff --git a/src/game/navmesh.cpp b/src/game/navmesh.cpp
index 1093d07f..fc4c5af7 100644
--- a/src/game/navmesh.cpp
+++ b/src/game/navmesh.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "navmesh.h"
 
 #include "glm/gtx/norm.hpp"
diff --git a/src/game/navmesh.h b/src/game/navmesh.h
index 3e870f53..8303cbfa 100644
--- a/src/game/navmesh.h
+++ b/src/game/navmesh.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include <atomic>
diff --git a/src/game/object/creature.cpp b/src/game/object/creature.cpp
index c7240422..2d5db090 100644
--- a/src/game/object/creature.cpp
+++ b/src/game/object/creature.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "creature.h"
 
 #include <boost/algorithm/string.hpp>
diff --git a/src/game/object/creature.h b/src/game/object/creature.h
index e84daa6a..4f6f3be6 100644
--- a/src/game/object/creature.h
+++ b/src/game/object/creature.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include <queue>
diff --git a/src/game/object/door.cpp b/src/game/object/door.cpp
index f6e55a64..225875ff 100644
--- a/src/game/object/door.cpp
+++ b/src/game/object/door.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "door.h"
 
 #include <boost/algorithm/string.hpp>
diff --git a/src/game/object/door.h b/src/game/object/door.h
index 9b08ab96..e588d8f1 100644
--- a/src/game/object/door.h
+++ b/src/game/object/door.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include "object.h"
diff --git a/src/game/object/object.cpp b/src/game/object/object.cpp
index 026c6014..1ce5bc70 100644
--- a/src/game/object/object.cpp
+++ b/src/game/object/object.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "object.h"
 
 #include "glm/gtx/euler_angles.hpp"
diff --git a/src/game/object/object.h b/src/game/object/object.h
index 8165b329..440b3eeb 100644
--- a/src/game/object/object.h
+++ b/src/game/object/object.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include "../../render/modelinstance.h"
diff --git a/src/game/object/placeable.cpp b/src/game/object/placeable.cpp
index cdfc64cc..0acd2e51 100644
--- a/src/game/object/placeable.cpp
+++ b/src/game/object/placeable.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "placeable.h"
 
 #include <boost/algorithm/string.hpp>
diff --git a/src/game/object/placeable.h b/src/game/object/placeable.h
index a5a7b845..4599cc4d 100644
--- a/src/game/object/placeable.h
+++ b/src/game/object/placeable.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include "object.h"
diff --git a/src/game/object/trigger.cpp b/src/game/object/trigger.cpp
index 647d206d..9a52dbb0 100644
--- a/src/game/object/trigger.cpp
+++ b/src/game/object/trigger.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "trigger.h"
 
 #include <boost/algorithm/string.hpp>
diff --git a/src/game/object/trigger.h b/src/game/object/trigger.h
index 1bdde5de..cfc5bc5d 100644
--- a/src/game/object/trigger.h
+++ b/src/game/object/trigger.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include "object.h"
diff --git a/src/game/object/waypoint.cpp b/src/game/object/waypoint.cpp
index 5fc84968..08ff8a21 100644
--- a/src/game/object/waypoint.cpp
+++ b/src/game/object/waypoint.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "waypoint.h"
 
 #include <boost/algorithm/string.hpp>
diff --git a/src/game/object/waypoint.h b/src/game/object/waypoint.h
index 6ff16065..19e77dd1 100644
--- a/src/game/object/waypoint.h
+++ b/src/game/object/waypoint.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include "object.h"
diff --git a/src/game/room.cpp b/src/game/room.cpp
index d401c4c5..6a546fca 100644
--- a/src/game/room.cpp
+++ b/src/game/room.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "room.h"
 
 using namespace reone::render;
diff --git a/src/game/room.h b/src/game/room.h
index aa5753dd..c07aa305 100644
--- a/src/game/room.h
+++ b/src/game/room.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include <memory>
diff --git a/src/game/templates.cpp b/src/game/templates.cpp
index e6537097..9e202db8 100644
--- a/src/game/templates.cpp
+++ b/src/game/templates.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "templates.h"
 
 #include <map>
diff --git a/src/game/templates.h b/src/game/templates.h
index f0412268..67828c14 100644
--- a/src/game/templates.h
+++ b/src/game/templates.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include <memory>
diff --git a/src/game/types.h b/src/game/types.h
index 64b0a395..1f5f32ce 100644
--- a/src/game/types.h
+++ b/src/game/types.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include <map>
diff --git a/src/gui/control/button.cpp b/src/gui/control/button.cpp
index 664a5902..d9050df5 100644
--- a/src/gui/control/button.cpp
+++ b/src/gui/control/button.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "button.h"
 
 namespace reone {
diff --git a/src/gui/control/button.h b/src/gui/control/button.h
index 6e4c2c94..7058f3e2 100644
--- a/src/gui/control/button.h
+++ b/src/gui/control/button.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include "control.h"
diff --git a/src/gui/control/control.cpp b/src/gui/control/control.cpp
index 6acc149f..74113772 100644
--- a/src/gui/control/control.cpp
+++ b/src/gui/control/control.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "control.h"
 
 #include "glm/ext.hpp"
diff --git a/src/gui/control/control.h b/src/gui/control/control.h
index c83f7840..ef372dfc 100644
--- a/src/gui/control/control.h
+++ b/src/gui/control/control.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include <functional>
diff --git a/src/gui/control/label.cpp b/src/gui/control/label.cpp
index 2ab913c5..73ed9679 100644
--- a/src/gui/control/label.cpp
+++ b/src/gui/control/label.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "label.h"
 
 namespace reone {
diff --git a/src/gui/control/label.h b/src/gui/control/label.h
index b84a55bf..d6c79ce6 100644
--- a/src/gui/control/label.h
+++ b/src/gui/control/label.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include "control.h"
diff --git a/src/gui/control/listbox.cpp b/src/gui/control/listbox.cpp
index fa5679fc..07ce47c2 100644
--- a/src/gui/control/listbox.cpp
+++ b/src/gui/control/listbox.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "listbox.h"
 
 #include "GL/glew.h"
diff --git a/src/gui/control/listbox.h b/src/gui/control/listbox.h
index ab36f223..4eef41be 100644
--- a/src/gui/control/listbox.h
+++ b/src/gui/control/listbox.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include <vector>
diff --git a/src/gui/control/panel.cpp b/src/gui/control/panel.cpp
index 35834b0e..bba1e511 100644
--- a/src/gui/control/panel.cpp
+++ b/src/gui/control/panel.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "panel.h"
 
 namespace reone {
diff --git a/src/gui/control/panel.h b/src/gui/control/panel.h
index 8ae3d3bd..55980eb2 100644
--- a/src/gui/control/panel.h
+++ b/src/gui/control/panel.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include "control.h"
diff --git a/src/gui/debug.cpp b/src/gui/debug.cpp
index be0b8f0b..64bc2ae9 100644
--- a/src/gui/debug.cpp
+++ b/src/gui/debug.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "debug.h"
 
 #include "control/label.h"
diff --git a/src/gui/debug.h b/src/gui/debug.h
index a56e039c..7bf42b5a 100644
--- a/src/gui/debug.h
+++ b/src/gui/debug.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include "gui.h"
diff --git a/src/gui/gui.cpp b/src/gui/gui.cpp
index 9f445594..76c820b6 100644
--- a/src/gui/gui.cpp
+++ b/src/gui/gui.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "gui.h"
 
 #include "GL/glew.h"
diff --git a/src/gui/gui.h b/src/gui/gui.h
index 16281d63..f24b212c 100644
--- a/src/gui/gui.h
+++ b/src/gui/gui.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include "../render/font.h"
diff --git a/src/gui/hud.cpp b/src/gui/hud.cpp
index 3272807a..498b4a8f 100644
--- a/src/gui/hud.cpp
+++ b/src/gui/hud.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "hud.h"
 
 #include "control/label.h"
diff --git a/src/gui/hud.h b/src/gui/hud.h
index 707468dd..90b5008c 100644
--- a/src/gui/hud.h
+++ b/src/gui/hud.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include "gui.h"
diff --git a/src/gui/mainmenu.cpp b/src/gui/mainmenu.cpp
index 56588923..22f96da8 100644
--- a/src/gui/mainmenu.cpp
+++ b/src/gui/mainmenu.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "mainmenu.h"
 
 using namespace reone::render;
diff --git a/src/gui/mainmenu.h b/src/gui/mainmenu.h
index 49c92ddf..1d2dbda8 100644
--- a/src/gui/mainmenu.h
+++ b/src/gui/mainmenu.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include "gui.h"
diff --git a/src/gui/modules.cpp b/src/gui/modules.cpp
index 710f4568..7f5c1b26 100644
--- a/src/gui/modules.cpp
+++ b/src/gui/modules.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "modules.h"
 
 #include "../resources/manager.h"
diff --git a/src/gui/modules.h b/src/gui/modules.h
index 8401fca4..15d8f695 100644
--- a/src/gui/modules.h
+++ b/src/gui/modules.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include "gui.h"
diff --git a/src/gui/types.h b/src/gui/types.h
index 83daf4b7..0f768e30 100644
--- a/src/gui/types.h
+++ b/src/gui/types.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include <string>
diff --git a/src/main.cpp b/src/main.cpp
index 2529f2e6..6971af7a 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "core/log.h"
 #include "program.h"
 
diff --git a/src/net/client.cpp b/src/net/client.cpp
index d644b6af..6d0c1a8a 100644
--- a/src/net/client.cpp
+++ b/src/net/client.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "client.h"
 
 #include "../core/log.h"
diff --git a/src/net/client.h b/src/net/client.h
index 6a0ff393..aa3ba169 100644
--- a/src/net/client.h
+++ b/src/net/client.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include <string>
diff --git a/src/net/connection.cpp b/src/net/connection.cpp
index aaf176f1..57b2c0c6 100644
--- a/src/net/connection.cpp
+++ b/src/net/connection.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "connection.h"
 
 #include <boost/asio/read.hpp>
diff --git a/src/net/connection.h b/src/net/connection.h
index 5c55f991..59e1e717 100644
--- a/src/net/connection.h
+++ b/src/net/connection.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include <functional>
diff --git a/src/net/server.cpp b/src/net/server.cpp
index 15d602bf..d18f2376 100644
--- a/src/net/server.cpp
+++ b/src/net/server.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "server.h"
 
 #include "../core/log.h"
diff --git a/src/net/server.h b/src/net/server.h
index ca1b374b..7c90edfd 100644
--- a/src/net/server.h
+++ b/src/net/server.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include <map>
diff --git a/src/net/types.h b/src/net/types.h
index c9908b0a..42a17ae9 100644
--- a/src/net/types.h
+++ b/src/net/types.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include <string>
diff --git a/src/program.cpp b/src/program.cpp
index 4c3d28d1..f8f32470 100644
--- a/src/program.cpp
+++ b/src/program.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "program.h"
 
 #include <iostream>
diff --git a/src/program.h b/src/program.h
index 4d8f10a5..4f817815 100644
--- a/src/program.h
+++ b/src/program.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include <memory>
diff --git a/src/render/aabb.cpp b/src/render/aabb.cpp
index 0dd7e6e0..8065484b 100644
--- a/src/render/aabb.cpp
+++ b/src/render/aabb.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "aabb.h"
 
 #include <utility>
diff --git a/src/render/aabb.h b/src/render/aabb.h
index 7d2a5e8b..02b7fe24 100644
--- a/src/render/aabb.h
+++ b/src/render/aabb.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include "glm/mat4x4.hpp"
diff --git a/src/render/animation.cpp b/src/render/animation.cpp
index 8027bc91..2b792605 100644
--- a/src/render/animation.cpp
+++ b/src/render/animation.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "animation.h"
 
 #include <queue>
diff --git a/src/render/animation.h b/src/render/animation.h
index 98c97f61..e43f758f 100644
--- a/src/render/animation.h
+++ b/src/render/animation.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include "modelnode.h"
diff --git a/src/render/camera/camera.cpp b/src/render/camera/camera.cpp
index c2ab1dff..68b5c68c 100644
--- a/src/render/camera/camera.cpp
+++ b/src/render/camera/camera.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "camera.h"
 
 namespace reone {
diff --git a/src/render/camera/camera.h b/src/render/camera/camera.h
index 96ff90af..af7d79c9 100644
--- a/src/render/camera/camera.h
+++ b/src/render/camera/camera.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include "SDL2/SDL_events.h"
diff --git a/src/render/camera/firstperson.cpp b/src/render/camera/firstperson.cpp
index 913a8d69..965c09d4 100644
--- a/src/render/camera/firstperson.cpp
+++ b/src/render/camera/firstperson.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "firstperson.h"
 
 #include "glm/ext.hpp"
diff --git a/src/render/camera/firstperson.h b/src/render/camera/firstperson.h
index accdd0ac..6ad96e1d 100644
--- a/src/render/camera/firstperson.h
+++ b/src/render/camera/firstperson.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include "camera.h"
diff --git a/src/render/camera/thirdperson.cpp b/src/render/camera/thirdperson.cpp
index 241c9c33..4002e121 100644
--- a/src/render/camera/thirdperson.cpp
+++ b/src/render/camera/thirdperson.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "thirdperson.h"
 
 #include "glm/ext.hpp"
diff --git a/src/render/camera/thirdperson.h b/src/render/camera/thirdperson.h
index dc094a0a..3b943a32 100644
--- a/src/render/camera/thirdperson.h
+++ b/src/render/camera/thirdperson.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include <functional>
diff --git a/src/render/font.cpp b/src/render/font.cpp
index ac57c5f4..bdfb3c83 100644
--- a/src/render/font.cpp
+++ b/src/render/font.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "font.h"
 
 #include <stdexcept>
diff --git a/src/render/font.h b/src/render/font.h
index 2d485d35..307c069d 100644
--- a/src/render/font.h
+++ b/src/render/font.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include <memory>
diff --git a/src/render/mesh/aabb.cpp b/src/render/mesh/aabb.cpp
index 9ce0ac72..0c8a655e 100644
--- a/src/render/mesh/aabb.cpp
+++ b/src/render/mesh/aabb.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "aabb.h"
 
 #include "GL/glew.h"
diff --git a/src/render/mesh/aabb.h b/src/render/mesh/aabb.h
index ccf80fed..ba5b365e 100644
--- a/src/render/mesh/aabb.h
+++ b/src/render/mesh/aabb.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include "mesh.h"
diff --git a/src/render/mesh/guiquad.cpp b/src/render/mesh/guiquad.cpp
index 82b8ee4d..9699f860 100644
--- a/src/render/mesh/guiquad.cpp
+++ b/src/render/mesh/guiquad.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "guiquad.h"
 
 namespace reone {
diff --git a/src/render/mesh/guiquad.h b/src/render/mesh/guiquad.h
index b439527a..ba7b438a 100644
--- a/src/render/mesh/guiquad.h
+++ b/src/render/mesh/guiquad.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include "mesh.h"
diff --git a/src/render/mesh/mesh.cpp b/src/render/mesh/mesh.cpp
index 267ef00f..c0f592cc 100644
--- a/src/render/mesh/mesh.cpp
+++ b/src/render/mesh/mesh.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "mesh.h"
 
 #include <cassert>
diff --git a/src/render/mesh/mesh.h b/src/render/mesh/mesh.h
index 69fbc2ef..75b0f702 100644
--- a/src/render/mesh/mesh.h
+++ b/src/render/mesh/mesh.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include <cstdint>
diff --git a/src/render/mesh/modelmesh.cpp b/src/render/mesh/modelmesh.cpp
index 12e3c147..d82ef2a2 100644
--- a/src/render/mesh/modelmesh.cpp
+++ b/src/render/mesh/modelmesh.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "modelmesh.h"
 
 #include "GL/glew.h"
diff --git a/src/render/mesh/modelmesh.h b/src/render/mesh/modelmesh.h
index a7d8a6bd..76d1e2c5 100644
--- a/src/render/mesh/modelmesh.h
+++ b/src/render/mesh/modelmesh.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include <memory>
diff --git a/src/render/model.cpp b/src/render/model.cpp
index 01f7a5d5..cc3616e9 100644
--- a/src/render/model.cpp
+++ b/src/render/model.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "model.h"
 
 namespace reone {
diff --git a/src/render/model.h b/src/render/model.h
index 1a99479f..d64af1c1 100644
--- a/src/render/model.h
+++ b/src/render/model.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include "aabb.h"
diff --git a/src/render/modelinstance.cpp b/src/render/modelinstance.cpp
index 4a5c3cc7..5710aff6 100644
--- a/src/render/modelinstance.cpp
+++ b/src/render/modelinstance.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include <stdexcept>
 
 #include "GL/glew.h"
diff --git a/src/render/modelinstance.h b/src/render/modelinstance.h
index b55e09a4..dd1bf2bc 100644
--- a/src/render/modelinstance.h
+++ b/src/render/modelinstance.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include <set>
diff --git a/src/render/modelnode.cpp b/src/render/modelnode.cpp
index adeb679c..98e91609 100644
--- a/src/render/modelnode.cpp
+++ b/src/render/modelnode.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "modelnode.h"
 
 namespace reone {
diff --git a/src/render/modelnode.h b/src/render/modelnode.h
index a386aae8..5e4d7369 100644
--- a/src/render/modelnode.h
+++ b/src/render/modelnode.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include <map>
diff --git a/src/render/shadermanager.cpp b/src/render/shadermanager.cpp
index ef383b38..317dc91c 100644
--- a/src/render/shadermanager.cpp
+++ b/src/render/shadermanager.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "shadermanager.h"
 
 #include <stdexcept>
diff --git a/src/render/shadermanager.h b/src/render/shadermanager.h
index 3da12ce0..d073a884 100644
--- a/src/render/shadermanager.h
+++ b/src/render/shadermanager.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include <map>
diff --git a/src/render/texture.cpp b/src/render/texture.cpp
index b4d81ebb..607085ea 100644
--- a/src/render/texture.cpp
+++ b/src/render/texture.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "texture.h"
 
 #include <stdexcept>
diff --git a/src/render/texture.h b/src/render/texture.h
index 45f1c087..6cb2582d 100644
--- a/src/render/texture.h
+++ b/src/render/texture.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include "../core/types.h"
diff --git a/src/render/types.h b/src/render/types.h
index 3271985c..3f9941d7 100644
--- a/src/render/types.h
+++ b/src/render/types.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include <string>
diff --git a/src/render/walkmesh.cpp b/src/render/walkmesh.cpp
index e6d15965..bd491b6e 100644
--- a/src/render/walkmesh.cpp
+++ b/src/render/walkmesh.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "walkmesh.h"
 
 #include "glm/gtx/intersect.hpp"
diff --git a/src/render/walkmesh.h b/src/render/walkmesh.h
index aefb60b1..c97071af 100644
--- a/src/render/walkmesh.h
+++ b/src/render/walkmesh.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include <vector>
diff --git a/src/render/window.cpp b/src/render/window.cpp
index b2fd7cde..7a73fae8 100644
--- a/src/render/window.cpp
+++ b/src/render/window.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "window.h"
 
 #include <stdexcept>
diff --git a/src/render/window.h b/src/render/window.h
index 6fe730d2..f75117f3 100644
--- a/src/render/window.h
+++ b/src/render/window.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include <functional>
diff --git a/src/resources/2dafile.cpp b/src/resources/2dafile.cpp
index 4aaf6963..ff1d35ba 100644
--- a/src/resources/2dafile.cpp
+++ b/src/resources/2dafile.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "2dafile.h"
 
 #include <iostream>
diff --git a/src/resources/2dafile.h b/src/resources/2dafile.h
index 13083ec5..92efda4d 100644
--- a/src/resources/2dafile.h
+++ b/src/resources/2dafile.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include "binfile.h"
diff --git a/src/resources/biffile.cpp b/src/resources/biffile.cpp
index 9d8cb579..52ec4cb4 100644
--- a/src/resources/biffile.cpp
+++ b/src/resources/biffile.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "biffile.h"
 
 namespace fs = boost::filesystem;
diff --git a/src/resources/biffile.h b/src/resources/biffile.h
index b8f689c7..0a591da9 100644
--- a/src/resources/biffile.h
+++ b/src/resources/biffile.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include "binfile.h"
diff --git a/src/resources/binfile.cpp b/src/resources/binfile.cpp
index b5110dc8..e9b97bf6 100644
--- a/src/resources/binfile.cpp
+++ b/src/resources/binfile.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "binfile.h"
 
 namespace fs = boost::filesystem;
diff --git a/src/resources/binfile.h b/src/resources/binfile.h
index d2089268..1002cfc9 100644
--- a/src/resources/binfile.h
+++ b/src/resources/binfile.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include <boost/filesystem.hpp>
diff --git a/src/resources/bwmfile.cpp b/src/resources/bwmfile.cpp
index efc2585f..faf49779 100644
--- a/src/resources/bwmfile.cpp
+++ b/src/resources/bwmfile.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "bwmfile.h"
 
 #include "glm/ext.hpp"
diff --git a/src/resources/bwmfile.h b/src/resources/bwmfile.h
index 883b17c1..8bdcee52 100644
--- a/src/resources/bwmfile.h
+++ b/src/resources/bwmfile.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include "binfile.h"
diff --git a/src/resources/erffile.cpp b/src/resources/erffile.cpp
index fccbc04a..940125b9 100644
--- a/src/resources/erffile.cpp
+++ b/src/resources/erffile.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "erffile.h"
 
 #include <boost/algorithm/string.hpp>
diff --git a/src/resources/erffile.h b/src/resources/erffile.h
index 91eb6f57..9e2e21d8 100644
--- a/src/resources/erffile.h
+++ b/src/resources/erffile.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include "binfile.h"
diff --git a/src/resources/folder.cpp b/src/resources/folder.cpp
index ee921ddb..8d9f7403 100644
--- a/src/resources/folder.cpp
+++ b/src/resources/folder.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "folder.h"
 
 #include <boost/algorithm/string.hpp>
diff --git a/src/resources/folder.h b/src/resources/folder.h
index b1e0e9a4..84d4bb92 100644
--- a/src/resources/folder.h
+++ b/src/resources/folder.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include <set>
diff --git a/src/resources/gfffile.cpp b/src/resources/gfffile.cpp
index 0159aede..a32ce868 100644
--- a/src/resources/gfffile.cpp
+++ b/src/resources/gfffile.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "gfffile.h"
 
 #include "glm/gtc/type_ptr.hpp"
diff --git a/src/resources/gfffile.h b/src/resources/gfffile.h
index 36c2b015..eda0c0cc 100644
--- a/src/resources/gfffile.h
+++ b/src/resources/gfffile.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include "binfile.h"
diff --git a/src/resources/keyfile.cpp b/src/resources/keyfile.cpp
index 79506a7f..7a143c9d 100644
--- a/src/resources/keyfile.cpp
+++ b/src/resources/keyfile.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "keyfile.h"
 
 #include <boost/algorithm/string.hpp>
diff --git a/src/resources/keyfile.h b/src/resources/keyfile.h
index 14789d98..835bea60 100644
--- a/src/resources/keyfile.h
+++ b/src/resources/keyfile.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include "binfile.h"
diff --git a/src/resources/lytfile.cpp b/src/resources/lytfile.cpp
index 03673553..de595963 100644
--- a/src/resources/lytfile.cpp
+++ b/src/resources/lytfile.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "lytfile.h"
 
 #include <boost/algorithm/string.hpp>
diff --git a/src/resources/lytfile.h b/src/resources/lytfile.h
index ba7e0363..60de28ff 100644
--- a/src/resources/lytfile.h
+++ b/src/resources/lytfile.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include <boost/filesystem.hpp>
diff --git a/src/resources/manager.cpp b/src/resources/manager.cpp
index 8c51ac75..171c1769 100644
--- a/src/resources/manager.cpp
+++ b/src/resources/manager.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "manager.h"
 
 #include <boost/algorithm/string.hpp>
diff --git a/src/resources/manager.h b/src/resources/manager.h
index ddc3a14e..a64c824c 100644
--- a/src/resources/manager.h
+++ b/src/resources/manager.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include "../audio/stream.h"
diff --git a/src/resources/mdlfile.cpp b/src/resources/mdlfile.cpp
index c66290c1..e069f563 100644
--- a/src/resources/mdlfile.cpp
+++ b/src/resources/mdlfile.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "mdlfile.h"
 
 #include <boost/algorithm/string.hpp>
diff --git a/src/resources/mdlfile.h b/src/resources/mdlfile.h
index 9d0d93aa..5da15773 100644
--- a/src/resources/mdlfile.h
+++ b/src/resources/mdlfile.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include "../render/model.h"
diff --git a/src/resources/mp3file.cpp b/src/resources/mp3file.cpp
index 438d06b2..88dbe61b 100644
--- a/src/resources/mp3file.cpp
+++ b/src/resources/mp3file.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "mp3file.h"
 
 using namespace reone::audio;
diff --git a/src/resources/mp3file.h b/src/resources/mp3file.h
index f68c343a..14e2191f 100644
--- a/src/resources/mp3file.h
+++ b/src/resources/mp3file.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include <memory>
diff --git a/src/resources/rimfile.cpp b/src/resources/rimfile.cpp
index 27029c53..da34a63e 100644
--- a/src/resources/rimfile.cpp
+++ b/src/resources/rimfile.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "rimfile.h"
 
 #include <boost/algorithm/string.hpp>
diff --git a/src/resources/rimfile.h b/src/resources/rimfile.h
index 7a162eec..22e0665d 100644
--- a/src/resources/rimfile.h
+++ b/src/resources/rimfile.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include "binfile.h"
diff --git a/src/resources/tgafile.cpp b/src/resources/tgafile.cpp
index 3815a77f..7a9a2b8a 100644
--- a/src/resources/tgafile.cpp
+++ b/src/resources/tgafile.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "tgafile.h"
 
 using namespace reone::render;
diff --git a/src/resources/tgafile.h b/src/resources/tgafile.h
index 2c9f6dba..19334062 100644
--- a/src/resources/tgafile.h
+++ b/src/resources/tgafile.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include "binfile.h"
diff --git a/src/resources/tlkfile.cpp b/src/resources/tlkfile.cpp
index 53b7bc7d..d934fb58 100644
--- a/src/resources/tlkfile.cpp
+++ b/src/resources/tlkfile.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "tlkfile.h"
 
 #include <boost/algorithm/string.hpp>
diff --git a/src/resources/tlkfile.h b/src/resources/tlkfile.h
index 7b15319f..0468cb4c 100644
--- a/src/resources/tlkfile.h
+++ b/src/resources/tlkfile.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include "binfile.h"
diff --git a/src/resources/tpcfile.cpp b/src/resources/tpcfile.cpp
index 06618a7c..7c44d885 100644
--- a/src/resources/tpcfile.cpp
+++ b/src/resources/tpcfile.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "tpcfile.h"
 
 #include "../core/streamutil.h"
diff --git a/src/resources/tpcfile.h b/src/resources/tpcfile.h
index d2c72437..79035cf4 100644
--- a/src/resources/tpcfile.h
+++ b/src/resources/tpcfile.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include "../render/texture.h"
diff --git a/src/resources/txifile.cpp b/src/resources/txifile.cpp
index 03d3cad3..2f6d5716 100644
--- a/src/resources/txifile.cpp
+++ b/src/resources/txifile.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "txifile.h"
 
 #include <vector>
diff --git a/src/resources/txifile.h b/src/resources/txifile.h
index 8d3f1dba..23ce3f8a 100644
--- a/src/resources/txifile.h
+++ b/src/resources/txifile.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include <istream>
diff --git a/src/resources/types.h b/src/resources/types.h
index 38cc895f..d9b4db57 100644
--- a/src/resources/types.h
+++ b/src/resources/types.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include <map>
diff --git a/src/resources/util.cpp b/src/resources/util.cpp
index e9bc4832..29e392fe 100644
--- a/src/resources/util.cpp
+++ b/src/resources/util.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include <map>
 
 #include <stdexcept>
diff --git a/src/resources/util.h b/src/resources/util.h
index 1f81da96..6ed200bb 100644
--- a/src/resources/util.h
+++ b/src/resources/util.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include <string>
diff --git a/src/resources/visfile.cpp b/src/resources/visfile.cpp
index 907156c2..8614b55e 100644
--- a/src/resources/visfile.cpp
+++ b/src/resources/visfile.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "visfile.h"
 
 #include <stdexcept>
diff --git a/src/resources/visfile.h b/src/resources/visfile.h
index 5a92b53c..fb952739 100644
--- a/src/resources/visfile.h
+++ b/src/resources/visfile.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include <istream>
diff --git a/src/resources/wavfile.cpp b/src/resources/wavfile.cpp
index 7097a7d2..d9ddcf7b 100644
--- a/src/resources/wavfile.cpp
+++ b/src/resources/wavfile.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "wavfile.h"
 
 #include "glm/glm.hpp"
diff --git a/src/resources/wavfile.h b/src/resources/wavfile.h
index ea6cd572..7ef6759a 100644
--- a/src/resources/wavfile.h
+++ b/src/resources/wavfile.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include "../audio/stream.h"
diff --git a/src/tools/2datool.cpp b/src/tools/2datool.cpp
index 1678c6c0..52f49627 100644
--- a/src/tools/2datool.cpp
+++ b/src/tools/2datool.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "tools.h"
 
 #include <boost/property_tree/json_parser.hpp>
diff --git a/src/tools/biftool.cpp b/src/tools/biftool.cpp
index e9d6ac56..6d968611 100644
--- a/src/tools/biftool.cpp
+++ b/src/tools/biftool.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "tools.h"
 
 #include <boost/algorithm/string.hpp>
diff --git a/src/tools/erftool.cpp b/src/tools/erftool.cpp
index 941cd4d5..2b073b2d 100644
--- a/src/tools/erftool.cpp
+++ b/src/tools/erftool.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "tools.h"
 
 #include <boost/format.hpp>
diff --git a/src/tools/gfftool.cpp b/src/tools/gfftool.cpp
index 592d9119..9ee80377 100644
--- a/src/tools/gfftool.cpp
+++ b/src/tools/gfftool.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "tools.h"
 
 #include <iomanip>
diff --git a/src/tools/keytool.cpp b/src/tools/keytool.cpp
index 91dee4eb..6707bea6 100644
--- a/src/tools/keytool.cpp
+++ b/src/tools/keytool.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "tools.h"
 
 #include <boost/format.hpp>
diff --git a/src/tools/rimtool.cpp b/src/tools/rimtool.cpp
index 32a53b75..fbf9de07 100644
--- a/src/tools/rimtool.cpp
+++ b/src/tools/rimtool.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "tools.h"
 
 #include <boost/format.hpp>
diff --git a/src/tools/tools.cpp b/src/tools/tools.cpp
index 1cb8c781..028d1b6e 100644
--- a/src/tools/tools.cpp
+++ b/src/tools/tools.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #include "tools.h"
 
 using namespace std;
diff --git a/src/tools/tools.h b/src/tools/tools.h
index 919f313c..9facf42d 100644
--- a/src/tools/tools.h
+++ b/src/tools/tools.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright © 2020 Vsevolod Kremianskii
+ *
+ * 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 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 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/>.
+ */
+
 #pragma once
 
 #include <memory>