feat(audio): add audioPlugin and audio sample

Co-Authored-By: João Miguel Nogueira <[email protected]>

core/include/cubos/core/al/audio_context.hpp

@@ -148,6 +148,12 @@ namespace cubos::core::al
             /// @brief Plays the source.
             virtual void play() = 0;
 
+            /// @brief Stops the source, restarting buffer to position 0.
+            virtual void stop() = 0;
+
+            /// @brief Pauses the source, allowing to be played from the moment it was paused.
+            virtual void pause() = 0;
+
         protected:
             Source() = default;
         };
@@ -188,8 +194,9 @@ namespace cubos::core::al
             /// @return Handle of the new source.
             virtual std::shared_ptr<impl::Source> createSource() = 0;
 
-            /// @brief  Creates a new audio listener.
-            /// @return Handle of the new listener.
+            /// @brief  Gets the listener with the specific index.
+            /// @param index Index of the listener.
+            /// @return Handle of the listener.
             virtual std::shared_ptr<impl::Listener> listener(size_t index) = 0;
 
         protected:

core/src/al/miniaudio_context.cpp

@@ -180,6 +180,25 @@ class MiniaudioSource : public impl::Source
         }
     }
 
+    void stop() override
+    {
+        if (ma_sound_stop(&mSound) != MA_SUCCESS)
+        {
+            CUBOS_ERROR("Failed to stop sound");
+            return;
+        }
+        ma_sound_seek_to_pcm_frame(&mSound, 0);
+    }
+
+    void pause() override
+    {
+        if (ma_sound_stop(&mSound) != MA_SUCCESS)
+        {
+            CUBOS_ERROR("Failed to pause sound");
+            return;
+        }
+    }
+
 private:
     ma_sound mSound;
     ma_engine& mEngine;
@@ -188,7 +207,7 @@ class MiniaudioSource : public impl::Source
 class MiniaudioDevice : public impl::AudioDevice
 {
 public:
-    MiniaudioDevice(ma_context& context, const std::string& deviceName, ma_uint32 listenerCount)
+    MiniaudioDevice(ma_context& context, const std::string& specifier, ma_uint32 listenerCount)
         : mContext(context)
     {
         ma_device_info* pPlaybackDeviceInfos;
@@ -202,6 +221,12 @@ class MiniaudioDevice : public impl::AudioDevice
             return;
         }
 
+        std::string deviceName{specifier};
+        if (deviceName == "")
+        {
+            deviceName = pPlaybackDeviceInfos[0].name;
+        }
+
         ma_device_id* deviceId = nullptr;
         for (ma_uint32 i = 0; i < playbackDeviceCount; i++)
         {

engine/CMakeLists.txt

@@ -39,6 +39,15 @@ set(CUBOS_ENGINE_SOURCE
 	"src/utils/free_camera/plugin.cpp"
 	"src/utils/free_camera/controller.cpp"
 
+	"src/audio/plugin.cpp"
+	"src/audio/source.cpp"
+	"src/audio/source_impl.cpp"
+	"src/audio/listener.cpp"
+	"src/audio/listener_impl.cpp"
+	"src/audio/pause.cpp"
+	"src/audio/play.cpp"
+	"src/audio/stop.cpp"
+
     "src/audio/audio.cpp"
     "src/audio/bridge.cpp"
 

engine/include/cubos/engine/audio/listener.hpp

@@ -0,0 +1,24 @@
+/// @file
+/// @brief Component @ref cubos::engine::AudioListener.
+/// @ingroup audio-plugin
+
+#pragma once
+
+#include <map>
+
+#include <cubos/core/al/audio_context.hpp>
+#include <cubos/core/reflection/reflect.hpp>
+
+#include <cubos/engine/api.hpp>
+
+namespace cubos::engine
+{
+    /// @brief Component which adds an AudioListener to the entitiy
+    /// @ingroup audio-plugin
+    struct CUBOS_ENGINE_API AudioListener
+    {
+        CUBOS_REFLECT;
+
+        bool active{false};
+    };
+} // namespace cubos::engine

engine/include/cubos/engine/audio/pause.hpp

@@ -0,0 +1,22 @@
+/// @file
+/// @brief Component @ref cubos::engine::AudioPause.
+/// @ingroup audio-plugin
+
+#pragma once
+
+#include <glm/glm.hpp>
+
+#include <cubos/core/reflection/reflect.hpp>
+
+#include <cubos/engine/api.hpp>
+#include <cubos/engine/prelude.hpp>
+
+namespace cubos::engine
+{
+    /// @brief Component which adds an AudioSource to the entitiy
+    /// @ingroup audio-plugin
+    struct CUBOS_ENGINE_API AudioPause
+    {
+        CUBOS_REFLECT;
+    };
+} // namespace cubos::engine

engine/include/cubos/engine/audio/play.hpp

@@ -0,0 +1,22 @@
+/// @file
+/// @brief Component @ref cubos::engine::AudioPlay.
+/// @ingroup audio-plugin
+
+#pragma once
+
+#include <glm/glm.hpp>
+
+#include <cubos/core/reflection/reflect.hpp>
+
+#include <cubos/engine/api.hpp>
+#include <cubos/engine/prelude.hpp>
+
+namespace cubos::engine
+{
+    /// @brief Component which adds an AudioSource to the entitiy
+    /// @ingroup audio-plugin
+    struct CUBOS_ENGINE_API AudioPlay
+    {
+        CUBOS_REFLECT;
+    };
+} // namespace cubos::engine

engine/include/cubos/engine/audio/plugin.hpp

@@ -0,0 +1,40 @@
+/// @dir
+/// @brief @ref audio-plugin plugin directory.
+
+/// @file
+/// @brief Plugin entry point.
+/// @ingroup audio-plugin
+
+#pragma once
+
+#include <cubos/engine/audio/audio.hpp>
+#include <cubos/engine/audio/listener.hpp>
+#include <cubos/engine/audio/pause.hpp>
+#include <cubos/engine/audio/play.hpp>
+#include <cubos/engine/audio/source.hpp>
+#include <cubos/engine/audio/stop.hpp>
+#include <cubos/engine/prelude.hpp>
+
+namespace cubos::engine
+{
+    /// @defgroup audio-plugin Audio
+    /// @ingroup engine
+    /// @brief Adds audio to @b Cubos
+    ///
+    /// ## Settings
+    /// - `audio.listener.count` - number of listeners per audio device (default: `4`).
+    ///
+    /// ## Dependencies
+    /// - @ref settings-plugin
+
+    /// @brief Initializes the audio context (after @ref settingsTag).
+    CUBOS_ENGINE_API extern Tag audioInitTag;
+
+    /// @brief Initializes the audio state (after @ref audioInitTag).
+    CUBOS_ENGINE_API extern Tag audioStateInitTag;
+
+    /// @brief Plugin entry function.
+    /// @param cubos @b Cubos main class.
+    /// @ingroup assets-plugin
+    CUBOS_ENGINE_API void audioPlugin(Cubos& cubos);
+} // namespace cubos::engine

engine/include/cubos/engine/audio/source.hpp

@@ -0,0 +1,41 @@
+/// @file
+/// @brief Component @ref cubos::engine::AudioSource.
+/// @ingroup audio-plugin
+
+#pragma once
+
+#include <glm/glm.hpp>
+
+#include <cubos/core/al/audio_context.hpp>
+#include <cubos/core/reflection/reflect.hpp>
+
+#include <cubos/engine/api.hpp>
+#include <cubos/engine/audio/audio.hpp>
+#include <cubos/engine/prelude.hpp>
+
+namespace cubos::engine
+{
+    /// @brief Component which adds an AudioSource to the entitiy
+    /// @ingroup audio-plugin
+    struct CUBOS_ENGINE_API AudioSource
+    {
+        CUBOS_REFLECT;
+
+        bool playing{false};
+        bool looping{false};
+        bool stop{false};
+
+        float gain;
+        float pitch;
+        float maxDistance;
+        float minDistance;
+
+        float innerConeAngle;
+        float outerConeAngle;
+        float outerConeGain;
+
+        glm::vec3 coneDirection;
+
+        Asset<Audio> sound{};
+    };
+} // namespace cubos::engine

engine/include/cubos/engine/audio/stop.hpp

@@ -0,0 +1,22 @@
+/// @file
+/// @brief Component @ref cubos::engine::AudioStop.
+/// @ingroup audio-plugin
+
+#pragma once
+
+#include <glm/glm.hpp>
+
+#include <cubos/core/reflection/reflect.hpp>
+
+#include <cubos/engine/api.hpp>
+#include <cubos/engine/prelude.hpp>
+
+namespace cubos::engine
+{
+    /// @brief Component which adds an AudioSource to the entitiy
+    /// @ingroup audio-plugin
+    struct CUBOS_ENGINE_API AudioStop
+    {
+        CUBOS_REFLECT;
+    };
+} // namespace cubos::engine

engine/include/cubos/engine/transform/local_to_world.hpp

@@ -40,6 +40,14 @@ namespace cubos::engine
         /// @return Rotation quaternion in world space.
         glm::quat worldRotation() const;
 
+        /// @brief Gets global forward vector of the entity.
+        /// @return Forward vector in world space.
+        glm::vec3 forward() const;
+
+        /// @brief Gets global up vector of the entity.
+        /// @return Up vector in world space.
+        glm::vec3 up() const;
+
         /// @brief Gets global scale of the entity.
         /// @return Scale value in world space.
         float worldScale() const;

engine/samples/CMakeLists.txt

@@ -33,6 +33,7 @@ macro(make_sample)
     endif()
 endmacro()
 # Add samples
+make_sample(DIR "audio" ASSETS)
 make_sample(DIR "hello-cubos")
 make_sample(DIR "settings")
 make_sample(DIR "events")

engine/samples/audio/assets/bg_music.mp3.meta

@@ -0,0 +1,3 @@
+{
+    "id": "059c16e7-a439-44c7-9bdc-7f133dba0c80"
+}

engine/samples/audio/main.cpp

@@ -0,0 +1,73 @@
+#include <cubos/engine/assets/plugin.hpp>
+#include <cubos/engine/audio/plugin.hpp>
+#include <cubos/engine/collisions/plugin.hpp>
+#include <cubos/engine/fixed_step/plugin.hpp>
+#include <cubos/engine/physics/plugin.hpp>
+#include <cubos/engine/render/camera/camera.hpp>
+#include <cubos/engine/render/camera/draws_to.hpp>
+#include <cubos/engine/render/camera/perspective.hpp>
+#include <cubos/engine/render/defaults/plugin.hpp>
+#include <cubos/engine/render/defaults/target.hpp>
+#include <cubos/engine/settings/plugin.hpp>
+#include <cubos/engine/settings/settings.hpp>
+#include <cubos/engine/transform/plugin.hpp>
+#include <cubos/engine/window/plugin.hpp>
+
+using namespace cubos::engine;
+
+/// [Get handles to assets]
+static const Asset<Audio> AudioAsset = AnyAsset("059c16e7-a439-44c7-9bdc-7f133dba0c80");
+/// [Get handles to assets]
+
+int main(int argc, char** argv)
+{
+    Cubos cubos{argc, argv};
+
+    cubos.plugin(settingsPlugin);
+    cubos.plugin(windowPlugin);
+    cubos.plugin(transformPlugin);
+    cubos.plugin(fixedStepPlugin);
+    cubos.plugin(assetsPlugin);
+    cubos.plugin(renderDefaultsPlugin);
+    cubos.plugin(collisionsPlugin);
+    cubos.plugin(physicsPlugin);
+    cubos.plugin(audioPlugin);
+
+    cubos.startupSystem("configure Assets").before(settingsTag).call([](Settings& settings) {
+        settings.setString("assets.app.osPath", APP_ASSETS_PATH);
+        settings.setString("assets.builtin.osPath", BUILTIN_ASSETS_PATH);
+    });
+
+    cubos.startupSystem("create a camera").call([](Commands cmds) {
+        auto targetEnt = cmds.create().add(RenderTargetDefaults{}).entity();
+
+        cmds.create()
+            .relatedTo(targetEnt, DrawsTo{})
+            .add(Camera{.zNear = 0.1F, .zFar = 1000.0F})
+            .add(PerspectiveCamera{.fovY = 60.0F})
+            .add(Position{{0.0F, 0.0F, 0.0F}})
+            .add(Rotation::lookingAt({-1.0F, -1.0F, -1.0F}, glm::vec3{0.0F, 1.0F, 0.0F}))
+            .add(AudioListener{true});
+    });
+
+    cubos.startupSystem("create an audio source").after(audioStateInitTag).call([](Commands cmds) {
+        cmds.create()
+            .add(Position{{0.0F, 0.0F, 0.0F}})
+            .add(Velocity{.vec = {1.0F, 1.0F, 1.0F}})
+            .add(Rotation::lookingAt({-1.0F, -1.0F, -1.0F}, glm::vec3{0.0F, 1.0F, 0.0F}))
+            .add(AudioSource{});
+    });
+
+    cubos.system("play audio").call([](Commands cmds, Query<Entity, AudioSource&> query) {
+        for (auto [ent, src] : query)
+        {
+            if (src.sound.isNull())
+            {
+                src.sound = AudioAsset;
+                cmds.add(ent, AudioPlay{});
+            }
+        }
+    });
+
+    cubos.run();
+}