sounds variants

src/assets/Assets.cpp

@@ -34,7 +34,6 @@ void Assets::store(Shader* shader, std::string name){
 	shaders.emplace(name, shader);
 }
 
-
 Font* Assets::getFont(std::string name) const {
 	auto found = fonts.find(name);
 	if (found == fonts.end())

src/assets/AssetsLoader.cpp

@@ -18,6 +18,7 @@ AssetsLoader::AssetsLoader(Assets* assets, const ResPaths* paths)
 	addLoader(ASSET_FONT, assetload::font);
 	addLoader(ASSET_ATLAS, assetload::atlas);
     addLoader(ASSET_LAYOUT, assetload::layout);
+    addLoader(ASSET_SOUND, assetload::sound);
 }
 
 void AssetsLoader::addLoader(int tag, aloader_func func) {
@@ -78,6 +79,7 @@ void AssetsLoader::addDefaults(AssetsLoader& loader, const Content* content) {
         loader.add(ASSET_TEXTURE, TEXTURES_FOLDER"/misc/moon.png", "misc/moon");
         loader.add(ASSET_TEXTURE, TEXTURES_FOLDER"/misc/sun.png", "misc/sun");
         loader.add(ASSET_TEXTURE, TEXTURES_FOLDER"/gui/crosshair.png", "gui/crosshair");
+        loader.add(ASSET_SOUND, SOUNDS_FOLDER"/steps/grass.ogg", "steps/grass");
 
         addLayouts(0, "core", loader.getPaths()->getMainRoot()/fs::path("layouts"), loader);
         for (auto& entry : content->getPacks()) {

src/assets/assetload_funcs.cpp

@@ -160,7 +160,6 @@ bool assetload::layout(
         return false;
     }
 }
-
 bool assetload::sound(
     AssetsLoader& loader,
     Assets* assets,
@@ -170,13 +169,34 @@ bool assetload::sound(
     std::shared_ptr<AssetCfg> config
 ) {
     auto cfg = dynamic_cast<SoundCfg*>(config.get());
-    auto sound = audio::load_sound(paths->find(file), cfg->keepPCM);
-    if (sound == nullptr) {
-        std::cerr << "failed to load sound '" << name << "' from '";
-        std::cerr << file << "'" << std::endl;
-        return false;
+    auto soundFile = paths->find(file);
+
+    bool keepPCM = cfg ? cfg->keepPCM : false;
+
+    size_t lastindex = file.find_last_of("."); 
+    std::string extension = file.substr(lastindex);
+    std::string extensionless = file.substr(0, lastindex);
+    try {
+        std::unique_ptr<audio::Sound> baseSound = nullptr;
+        if (fs::exists(soundFile)) {
+            baseSound.reset(audio::load_sound(soundFile, keepPCM));
+        }
+        auto variantFile = paths->find(extensionless+"_0"+extension);
+        if (fs::exists(variantFile)) {
+            baseSound.reset(audio::load_sound(variantFile, keepPCM));
+        }
+        for (uint i = 1; ; i++) {
+            auto variantFile = paths->find(extensionless+"_"+std::to_string(i)+extension);
+            if (!fs::exists(variantFile)) {
+                break;
+            }
+            baseSound->variants.emplace_back(audio::load_sound(variantFile, keepPCM));
+        }
+        assets->store(baseSound.release(), name);
+    } 
+    catch (std::runtime_error& err) {
+        std::cerr << err.what() << std::endl;
     }
-    assets->store(sound, name);
     return true;
 }
 

src/audio/audio.h

@@ -192,6 +192,8 @@ namespace audio {
     /// So it's audio data is stored in memory.
     class Sound {
     public:
+        std::vector<std::shared_ptr<Sound>> variants;
+
         virtual ~Sound() {}
 
         /// @brief Get sound duration

src/constants.h

@@ -40,5 +40,6 @@ inline constexpr uint vox_index(uint x, uint y, uint z, uint w=CHUNK_W, uint d=C
 #define TEXTURES_FOLDER "textures"
 #define FONTS_FOLDER "fonts"
 #define LAYOUTS_FOLDER "layouts"
+#define SOUNDS_FOLDER "sounds"
 
 #endif // SRC_CONSTANTS_H_

src/engine.cpp

@@ -151,9 +151,8 @@ Engine::~Engine() {
     std::cout << "-- shutting down" << std::endl;
 	screen.reset();
 	content.reset();
-
-	audio::close();
     assets.reset();
+	audio::close();
     scripting::close();
 	Window::terminate();
 	std::cout << "-- engine finished" << std::endl;