5 files changed, 37 insertions, 0 deletions
diff --git a/src/game/client/io/gamepad.cc b/src/game/client/io/gamepad.cc
index 2c99107..768b18b 100644
--- a/src/game/client/io/gamepad.cc
+++ b/src/game/client/io/gamepad.cc
@@ -1,3 +1,8 @@
+// SPDX-License-Identifier: BSD-2-Clause
+// Copyright (c) 2025 Kirill Dmitrievich
+// File: gamepad.cc
+// Description: Gamepad support
+
 #include "client/pch.hh"
 
 #include "client/io/gamepad.hh"
diff --git a/src/game/client/io/gamepad.hh b/src/game/client/io/gamepad.hh
index 5f76277..b506cc2 100644
--- a/src/game/client/io/gamepad.hh
+++ b/src/game/client/io/gamepad.hh
@@ -1,3 +1,10 @@
+// SPDX-License-Identifier: BSD-2-Clause
+// Copyright (c) 2025 Kirill Dmitrievich
+// File: gamepad.hh
+// Description: Gamepad support
+
+#ifndef CLIENT_IO_GAMEPAD_HH
+#define CLIENT_IO_GAMEPAD_HH
 #pragma once
 
 constexpr static int INVALID_GAMEPAD_AXIS = INT_MAX;
@@ -42,3 +49,5 @@ struct GamepadButtonEvent final {
     int action;
     int button;
 };
+
+#endif
diff --git a/src/game/client/io/glfw.hh b/src/game/client/io/glfw.hh
index ad445f9..9da978b 100644
--- a/src/game/client/io/glfw.hh
+++ b/src/game/client/io/glfw.hh
@@ -1,3 +1,10 @@
+// SPDX-License-Identifier: BSD-2-Clause
+// Copyright (c) 2025 Kirill Dmitrievich
+// File: glfw.hh
+// Description: GLFW events passed through EnTT's signal system
+
+#ifndef CLIENT_IO_GLFW_HH
+#define CLIENT_IO_GLFW_HH
 #pragma once
 
 struct GlfwCursorPosEvent final {
@@ -31,3 +38,5 @@ struct GlfwScrollEvent final {
     float dx;
     float dy;
 };
+
+#endif
diff --git a/src/game/client/io/sound.cc b/src/game/client/io/sound.cc
index e67c456..886da2c 100644
--- a/src/game/client/io/sound.cc
+++ b/src/game/client/io/sound.cc
@@ -1,3 +1,8 @@
+// SPDX-License-Identifier: BSD-2-Clause
+// Copyright (c) 2025 Kirill Dmitrievich
+// File: sound.cc
+// Description: Sound handling
+
 #include "client/pch.hh"
 
 #include "client/io/sound.hh"
diff --git a/src/game/client/io/sound.hh b/src/game/client/io/sound.hh
index d96d0c4..f61410a 100644
--- a/src/game/client/io/sound.hh
+++ b/src/game/client/io/sound.hh
@@ -1,3 +1,10 @@
+// SPDX-License-Identifier: BSD-2-Clause
+// Copyright (c) 2025 Kirill Dmitrievich
+// File: sound.hh
+// Description: Sound handling
+
+#ifndef CLIENT_IO_SOUND_HH
+#define CLIENT_IO_SOUND_HH
 #pragma once
 
 #include "core/resource/resource.hh"
@@ -41,3 +48,5 @@ void play_entity(entt::entity entity, resource_ptr<SoundEffect> sound, bool loop
 void play_player(resource_ptr<SoundEffect> sound, bool looping, float pitch);
 void play_ui(resource_ptr<SoundEffect> sound, bool looping, float pitch);
 } // namespace sound
+
+#endif