block materials loading

res/content/base/block_materials/grass.json

@@ -0,0 +1,3 @@
+{
+    "steps-sound": "steps/grass"
+}

res/content/base/block_materials/stone.json

@@ -0,0 +1,3 @@
+{
+    "steps-sound": "steps/stone"
+}

res/content/base/block_materials/wood.json

@@ -0,0 +1,3 @@
+{
+    "steps-sound": "steps/wood"
+}

src/assets/AssetsLoader.cpp

@@ -61,6 +61,14 @@ void addLayouts(int env, const std::string& prefix, const fs::path& folder, Asse
     }
 }
 
+void AssetsLoader::tryAddSound(std::string name) {
+    if (name.empty()) {
+        return;
+    }
+    fs::path file = SOUNDS_FOLDER"/"+name+".ogg";
+    add(ASSET_SOUND, file, name);
+}
+
 void AssetsLoader::addDefaults(AssetsLoader& loader, const Content* content) {
     loader.add(ASSET_FONT, FONTS_FOLDER"/font", "normal");
     loader.add(ASSET_SHADER, SHADERS_FOLDER"/ui", "ui");
@@ -81,12 +89,12 @@ void AssetsLoader::addDefaults(AssetsLoader& loader, const Content* content) {
         loader.add(ASSET_TEXTURE, TEXTURES_FOLDER"/misc/sun.png", "misc/sun");
         loader.add(ASSET_TEXTURE, TEXTURES_FOLDER"/gui/crosshair.png", "gui/crosshair");
 
-        // (test code)
+        for (auto& entry : content->getBlockMaterials()) {
-        // TODO: remove
+            auto& material = entry.second;
-        loader.add(ASSET_SOUND, SOUNDS_FOLDER"/steps/grass.ogg", "steps/grass");
+            loader.tryAddSound(material.stepsSound);
-        loader.add(ASSET_SOUND, SOUNDS_FOLDER"/steps/stone.ogg", "steps/stone");
+            loader.tryAddSound(material.placeSound);
-        loader.add(ASSET_SOUND, SOUNDS_FOLDER"/steps/wood.ogg", "steps/wood");
+            loader.tryAddSound(material.breakSound);
-        loader.add(ASSET_SOUND, SOUNDS_FOLDER"/steps/ground.ogg", "steps/ground");
+        }
 
         addLayouts(0, "core", loader.getPaths()->getMainRoot()/fs::path("layouts"), loader);
         for (auto& entry : content->getPacks()) {

src/assets/AssetsLoader.h

@@ -49,6 +49,8 @@ class AssetsLoader {
 	std::map<int, aloader_func> loaders;
 	std::queue<aloader_entry> entries;
 	const ResPaths* paths;
+
+    void tryAddSound(std::string name);
 public:
 	AssetsLoader(Assets* assets, const ResPaths* paths);
 	void addLoader(int tag, aloader_func func);

src/content/Content.cpp

@@ -28,6 +28,10 @@ void ContentBuilder::add(ContentPackRuntime* pack) {
     packs.emplace(pack->getId(), pack);
 }
 
+void ContentBuilder::add(BlockMaterial material) {
+    blockMaterials.emplace(material.name, material);
+}
+
 Block& ContentBuilder::createBlock(std::string id) {
     auto found = blockDefs.find(id);
     if (found != blockDefs.end()) {
@@ -109,7 +113,12 @@ Content* ContentBuilder::build() {
     auto indices = new ContentIndices(blockDefsIndices, itemDefsIndices);
 
     auto content = std::make_unique<Content>(
-        indices, std::move(groups), blockDefs, itemDefs, std::move(packs)
+        indices, 
+        std::move(groups), 
+        blockDefs, 
+        itemDefs, 
+        std::move(packs), 
+        std::move(blockMaterials)
     );
 
     // Now, it's time to resolve foreign keys
@@ -136,11 +145,13 @@ Content::Content(
     std::unique_ptr<DrawGroups> drawGroups,
     std::unordered_map<std::string, Block*> blockDefs,
     std::unordered_map<std::string, ItemDef*> itemDefs,
-    std::unordered_map<std::string, std::unique_ptr<ContentPackRuntime>> packs
+    std::unordered_map<std::string, std::unique_ptr<ContentPackRuntime>> packs,
+    std::unordered_map<std::string, BlockMaterial> blockMaterials
 ) : blockDefs(blockDefs),
     itemDefs(itemDefs),
     indices(indices),
     packs(std::move(packs)),
+    blockMaterials(std::move(blockMaterials)),
     drawGroups(std::move(drawGroups)) 
 {}
 
@@ -178,6 +189,14 @@ ItemDef& Content::requireItem(std::string id) const {
     return *found->second;
 }
 
+const BlockMaterial* Content::findBlockMaterial(std::string id) const {
+    auto found = blockMaterials.find(id);
+    if (found == blockMaterials.end()) {
+        return nullptr;
+    }
+    return &found->second;
+}
+
 const ContentPackRuntime* Content::getPackRuntime(std::string id) const {
     auto found = packs.find(id);
     if (found == packs.end()) {
@@ -186,6 +205,10 @@ const ContentPackRuntime* Content::getPackRuntime(std::string id) const {
     return found->second.get();
 }
 
+const std::unordered_map<std::string, BlockMaterial>& Content::getBlockMaterials() const {
+    return blockMaterials;
+}
+
 const std::unordered_map<std::string, std::unique_ptr<ContentPackRuntime>>& Content::getPacks() const {
     return packs;
 }

src/content/Content.h

@@ -8,10 +8,10 @@
 #include <unordered_map>
 #include <set>
 #include "../typedefs.h"
+#include "../voxels/Block.h"
 
 using DrawGroups = std::set<ubyte>;
 
-class Block;
 class ItemDef;
 class Content;
 class ContentPackRuntime;
@@ -48,6 +48,8 @@ class ContentBuilder {
     std::unordered_map<std::string, ItemDef*> itemDefs;
     std::vector<std::string> itemIds;
 
+    std::unordered_map<std::string, BlockMaterial> blockMaterials;
+
     std::unordered_map<std::string, std::unique_ptr<ContentPackRuntime>> packs;
 public:
     ~ContentBuilder();
@@ -55,6 +57,7 @@ public:
     void add(Block* def);
     void add(ItemDef* def);
     void add(ContentPackRuntime* pack);
+    void add(BlockMaterial material);
 
     Block& createBlock(std::string id);
     ItemDef& createItem(std::string id);
@@ -111,6 +114,7 @@ class Content {
     std::unordered_map<std::string, ItemDef*> itemDefs;
     std::unique_ptr<ContentIndices> indices;
     std::unordered_map<std::string, std::unique_ptr<ContentPackRuntime>> packs;
+    std::unordered_map<std::string, BlockMaterial> blockMaterials;
 public:
     std::unique_ptr<DrawGroups> const drawGroups;
 
@@ -119,7 +123,8 @@ public:
         std::unique_ptr<DrawGroups> drawGroups,
         std::unordered_map<std::string, Block*> blockDefs,
         std::unordered_map<std::string, ItemDef*> itemDefs,
-        std::unordered_map<std::string, std::unique_ptr<ContentPackRuntime>> packs
+        std::unordered_map<std::string, std::unique_ptr<ContentPackRuntime>> packs,
+        std::unordered_map<std::string, BlockMaterial> blockMaterials
     );
     ~Content();
 
@@ -133,8 +138,11 @@ public:
     ItemDef* findItem(std::string id) const;
     ItemDef& requireItem(std::string id) const;
 
+    const BlockMaterial* findBlockMaterial(std::string id) const;
+
     const ContentPackRuntime* getPackRuntime(std::string id) const;
 
+    const std::unordered_map<std::string, BlockMaterial>& getBlockMaterials() const;
     const std::unordered_map<std::string, std::unique_ptr<ContentPackRuntime>>& getPacks() const;
 };
 

src/content/ContentLoader.cpp

@@ -303,6 +303,15 @@ void ContentLoader::loadItem(ItemDef& def, std::string full, std::string name) {
     }
 }
 
+BlockMaterial ContentLoader::loadBlockMaterial(fs::path file, std::string full) {
+    auto root = files::read_json(file);
+    BlockMaterial material {full};
+    root->str("steps-sound", material.stepsSound);
+    root->str("place-sound", material.placeSound);
+    root->str("break-sound", material.breakSound);
+    return material;
+}
+
 void ContentLoader::load(ContentBuilder& builder) {
     std::cout << "-- loading pack [" << pack->id << "]" << std::endl;
 
@@ -363,4 +372,13 @@ void ContentLoader::load(ContentBuilder& builder) {
             stats.totalItems++;
         }
     }
+
+    fs::path materialsDir = folder / fs::u8path("block_materials");
+    if (fs::is_directory(materialsDir)) {
+        for (auto entry : fs::directory_iterator(materialsDir)) {
+            fs::path file = entry.path();
+            std::string name = pack->id+":"+file.stem().u8string();
+            builder.add(loadBlockMaterial(file, name));
+        }
+    }
 }

src/content/ContentLoader.h

@@ -1,12 +1,13 @@
 #ifndef CONTENT_CONTENT_LOADER_H_
 #define CONTENT_CONTENT_LOADER_H_
 
+#include "../voxels/Block.h"
+
 #include <string>
 #include <filesystem>
 
 namespace fs = std::filesystem;
 
-class Block;
 class ItemDef;
 struct ContentPack;
 class ContentBuilder;
@@ -22,12 +23,15 @@ class ContentLoader {
     void loadBlock(Block& def, std::string full, std::string name);
     void loadCustomBlockModel(Block& def, dynamic::Map* primitives);
     void loadItem(ItemDef& def, std::string full, std::string name);
+    BlockMaterial loadBlockMaterial(fs::path file, std::string full);
 public:
     ContentLoader(ContentPack* pack);
 
-    bool fixPackIndices(std::filesystem::path folder,
+    bool fixPackIndices(
+        fs::path folder,
         dynamic::Map* indicesRoot,
-                        std::string contentSection);
+        std::string contentSection
+    );
     void fixPackIndices();
     void loadBlock(Block& def, std::string name, fs::path file);
     void loadItem(ItemDef& def, std::string name, fs::path file);

src/frontend/LevelFrontend.cpp

@@ -8,6 +8,7 @@
 #include "../voxels/Block.h"
 #include "../assets/Assets.h"
 #include "../graphics/Atlas.h"
+#include "../content/Content.h"
 
 #include "../logic/LevelController.h"
 #include "../logic/PlayerController.h"
@@ -16,8 +17,8 @@ LevelFrontend::LevelFrontend(Level* level, Assets* assets)
   : level(level),
     assets(assets),
     contentCache(std::make_unique<ContentGfxCache>(level->content, assets)),
-  blocksAtlas(BlocksPreview::build(contentCache.get(), assets, level->content)) {
+    blocksAtlas(BlocksPreview::build(contentCache.get(), assets, level->content)) 
-}
+{}
 
 void LevelFrontend::observe(LevelController* controller) {
     controller->getPlayerController()->listenBlockInteraction(
@@ -25,9 +26,12 @@ void LevelFrontend::observe(LevelController* controller) {
             if (type != BlockInteraction::step) {
                 return;
             }
-            // (test code)
+            auto material = level->content->findBlockMaterial(def->material);
-            // TODO: replace with BlockMaterial properties access
+            if (material == nullptr) {
-            auto sound = assets->getSound("steps/"+def->material.substr(def->material.find(':')+1));
+                return;
+            }
+
+            auto sound = assets->getSound(material->stepsSound);
             audio::play(
                 sound, 
                 glm::vec3(), 

src/voxels/Block.h

@@ -18,6 +18,8 @@ inline constexpr uint FACE_PY = 3;
 inline constexpr uint FACE_MZ = 4;
 inline constexpr uint FACE_PZ = 5;
 
+/// @brief Grid size used for physics solver collision checking with
+/// complex hitboxes
 inline constexpr uint BLOCK_AABB_GRID = 16;
 
 inline std::string DEFAULT_MATERIAL = "base:stone";
@@ -37,7 +39,7 @@ struct CoordSystem {
 	glm::ivec3 axisY;
 	glm::ivec3 axisZ;
 
-	// Grid 3d position fix offset (for negative vectors)
+	/// @brief Grid 3d position fix offset (for negative vectors)
 	glm::ivec3 fix;
 
 	CoordSystem() = default;
@@ -57,6 +59,7 @@ struct BlockRotProfile {
 
 	/// @brief Wood logs, pillars, pipes
 	static const BlockRotProfile PIPE;
+
 	/// @brief Doors, signs and other panes
 	static const BlockRotProfile PANE;
 };
@@ -80,9 +83,9 @@ using BoxModel = AABB;
 /// @brief Common kit of block properties applied to groups of blocks
 struct BlockMaterial {
 	std::string name;
-	std::string stepsSound;
+	std::string stepsSound {""};
-	std::string placeSound;
+	std::string placeSound {""};
-	std::string breakSound;
+	std::string breakSound {""};
 };
 
 /// @brief Block properties definition
@@ -90,6 +93,7 @@ class Block {
 public:
 	/// @brief Block string id (with prefix included)
 	std::string const name;
+	
     /// @brief Textures set applied to block sides
 	std::string textureFaces[6]; // -x,x, -y,y, -z,z
 	
@@ -98,57 +102,81 @@ public:
 	std::vector<glm::vec3> modelExtraPoints = {}; //initially made for tetragons
 	std::vector<UVRegion> modelUVs = {}; // boxes' tex-UVs also there
 
+    /// @brief id of used BlockMaterial, may specify non-existing material
     std::string material = DEFAULT_MATERIAL;
 
 	/// @brief Light emission R, G, B, S (sky lights: sun, moon, radioactive clouds)
 	uint8_t emission[4] {0, 0, 0, 0};
+
 	/// @brief Influences visible block sides for transparent blocks
 	uint8_t drawGroup = 0;
+	
     /// @brief Block model type
 	BlockModel model = BlockModel::block;
+	
     /// @brief Does the block passing lights into itself
 	bool lightPassing = false;
+	
     /// @brief Does the block passing top-down sky lights into itself
 	bool skyLightPassing = false;
+	
     /// @brief Is the block a physical obstacle
 	bool obstacle = true;
+	
     /// @brief Can the block be selected
 	bool selectable = true;
+	
     /// @brief Can the block be replaced with other. 
 	/// Examples of replaceable blocks: air, flower, water
 	bool replaceable = false;
+	
     /// @brief Can player destroy the block
 	bool breakable = true;
+	
     /// @brief Can the block be oriented different ways
 	bool rotatable = false;
+    
     /// @brief Can the block exist without physical support be a solid block below
     bool grounded = false;
+    
     /// @brief Turns off block item generation
     bool hidden = false;
+    
     /// @brief Set of block physical hitboxes
     std::vector<AABB> hitboxes;
+	
     /// @brief Set of available block rotations (coord-systems)
 	BlockRotProfile rotations;
+    
     /// @brief Item will be picked on MMB click on the block
     std::string pickingItem = name+BLOCK_ITEM_SUFFIX;
+    
     /// @brief Block script name in blocks/ without extension
     std::string scriptName = name.substr(name.find(':')+1);	
+	
     /// @brief Default block layout will be used by hud.open_block(...)
 	std::string uiLayout = name;
+    
     /// @brief Block inventory size. 0 - no inventory
     uint inventorySize = 0;
 
+	/// @brief Runtime indices (content indexing results)
 	struct {
 		/// @brief block runtime integer id
 		blockid_t id;
+		
         /// @brief is the block completely opaque for render and raycast
 		bool solid = true;
+		
         /// @brief does the block emit any lights
 		bool emissive = false;
+        
         /// @brief set of hitboxes sets with all coord-systems precalculated
         std::vector<AABB> hitboxes[BlockRotProfile::MAX_COUNT];
+		
         /// @brief set of block callbacks flags
 		block_funcs_set funcsset {};
+        
         /// @brief picking item integer id
         itemid_t pickingItem = 0;
 	} rt;