add packs resources (WIP)

res/content/base/resources.json

@@ -0,0 +1,7 @@
+{
+    "camera": [
+        "first-person",
+        "third-person-front",
+        "third-person-back"
+    ]
+}

src/content/Content.hpp

@@ -1,11 +1,12 @@
 #ifndef CONTENT_CONTENT_HPP_
 #define CONTENT_CONTENT_HPP_
 
-#include "../typedefs.hpp"
+#include "content_fwd.hpp"
 
 #include <string>
 #include <vector>
 #include <memory>
+#include <optional>
 #include <stdexcept>
 #include <unordered_map>
 #include <set>
@@ -18,18 +19,12 @@ class Block;
 struct BlockMaterial;
 struct ItemDef;
 struct EntityDef;
-class Content;
-class ContentPackRuntime;
 
 namespace rigging {
     class SkeletonConfig;
 }
 
-enum class contenttype {
-    none, block, item, entity
-};
-
-inline const char* contenttype_name(contenttype type) {
+constexpr const char* contenttype_name(contenttype type) {
     switch (type) {
         case contenttype::none: return "none";
         case contenttype::block: return "block";
@@ -111,6 +106,44 @@ public:
     }
 };
 
+class ResourceIndices {
+    std::vector<std::string> names;
+    std::unordered_map<std::string, size_t> indices;
+public:
+    ResourceIndices() {}
+
+    static constexpr size_t MISSING = -1;
+
+    void add(std::string name) {
+        indices[name] = names.size();
+        names.push_back(name);
+    }
+
+    size_t indexOf(const std::string& name) const {
+        const auto& found = indices.find(name);
+        if (found == indices.end()) {
+            return found->second;
+        }
+        return MISSING;
+    }
+};
+
+constexpr const char* to_string(ResourceType type) {
+    switch (type) {
+        case ResourceType::CAMERA: return "camera";
+        default: return "unknown";
+    }
+}
+
+inline std::optional<ResourceType> ResourceType_from(std::string_view str) {
+    if (str == "camera") {
+        return ResourceType::CAMERA;
+    }
+    return std::nullopt;
+}
+
+using ResourceIndicesSet = ResourceIndices[static_cast<size_t>(ResourceType::LAST)+1];
+
 /// @brief Content is a definitions repository
 class Content {
     std::unique_ptr<ContentIndices> indices;
@@ -122,6 +155,7 @@ public:
     ContentUnitDefs<ItemDef> items;
     ContentUnitDefs<EntityDef> entities;
     std::unique_ptr<DrawGroups> const drawGroups;
+    ResourceIndicesSet resourceIndices {};
 
     Content(
         std::unique_ptr<ContentIndices> indices, 

src/content/ContentBuilder.hpp

@@ -57,6 +57,7 @@ public:
     ContentUnitBuilder<Block> blocks {allNames, contenttype::block};
     ContentUnitBuilder<ItemDef> items {allNames, contenttype::item};
     ContentUnitBuilder<EntityDef> entities {allNames, contenttype::entity};
+    ResourceIndicesSet resourceIndices {};
 
     ~ContentBuilder();
 

src/content/ContentLoader.cpp

@@ -478,9 +478,28 @@ void ContentLoader::load() {
             fs::path scriptfile = entry.path();
             if (fs::is_regular_file(scriptfile)) {
                 auto name = pack->id+":"+scriptfile.stem().u8string();
-                std::cout << name << std::endl;
                 scripting::load_entity_component(name, scriptfile);
             }
         }
     }
+
+    fs::path resourcesFile = folder / fs::u8path("resources.json");
+    if (fs::exists(resourcesFile)) {
+        auto resRoot = files::read_json(resourcesFile);
+        for (const auto& [key, _] : resRoot->values) {
+            if (auto resType = ResourceType_from(key)) {
+                if (auto arr = resRoot->list(key)) {
+                    loadResources(*resType, arr.get());
+                }
+            } else {
+                logger.warning() << "unknown resource type: " << key;
+            }
+        }
+    }
+}
+
+void ContentLoader::loadResources(ResourceType type, dynamic::List* list) {
+    for (size_t i = 0; i < list->size(); i++) {
+        builder.resourceIndices[static_cast<size_t>(type)].add(list->str(i));
+    }
 }

src/content/ContentLoader.hpp

@@ -1,7 +1,7 @@
 #ifndef CONTENT_CONTENT_LOADER_HPP_
 #define CONTENT_CONTENT_LOADER_HPP_
 
-#include "../typedefs.hpp"
+#include "content_fwd.hpp"
 
 #include <string>
 #include <memory>
@@ -19,6 +19,7 @@ struct ContentPackStats;
 
 namespace dynamic {
     class Map;
+    class List;
 }
 
 class ContentLoader {
@@ -36,6 +37,7 @@ class ContentLoader {
     static void loadBlock(Block& def, const std::string& name, const fs::path& file);
     static void loadItem(ItemDef& def, const std::string& name, const fs::path& file);
     static void loadEntity(EntityDef& def, const std::string& name, const fs::path& file);
+    void loadResources(ResourceType type, dynamic::List* list);
 public:
     ContentLoader(ContentPack* pack, ContentBuilder& builder);
 

src/content/content_fwd.hpp

@@ -0,0 +1,18 @@
+#ifndef CONTENT_CONTENT_FWD_HPP_
+#define CONTENT_CONTENT_FWD_HPP_
+
+#include "../typedefs.hpp"
+
+class Content;
+class ContentPackRuntime;
+
+enum class contenttype {
+    none, block, item, entity
+};
+
+enum class ResourceType : size_t {
+    CAMERA,
+    LAST=CAMERA
+};
+
+#endif // CONTENT_CONTENT_FWD_HPP_

src/engine.cpp

@@ -9,6 +9,7 @@
 #include "coders/imageio.hpp"
 #include "coders/json.hpp"
 #include "coders/toml.hpp"
+#include "content/Content.hpp"
 #include "content/ContentBuilder.hpp"
 #include "content/ContentLoader.hpp"
 #include "core_defs.hpp"

src/engine.hpp

@@ -5,7 +5,7 @@
 #include "typedefs.hpp"
 
 #include "assets/Assets.hpp"
-#include "content/Content.hpp"
+#include "content/content_fwd.hpp"
 #include "content/ContentPack.hpp"
 #include "content/PacksManager.hpp"
 #include "files/engine_paths.hpp"
@@ -48,11 +48,11 @@ class Engine : public util::ObjectsKeeper {
     SettingsHandler& settingsHandler;
     EnginePaths* paths;
 
-    std::unique_ptr<Assets> assets = nullptr;
-    std::shared_ptr<Screen> screen = nullptr;
+    std::unique_ptr<Assets> assets;
+    std::shared_ptr<Screen> screen;
     std::vector<ContentPack> contentPacks;
-    std::unique_ptr<Content> content = nullptr;
-    std::unique_ptr<ResPaths> resPaths = nullptr;
+    std::unique_ptr<Content> content;
+    std::unique_ptr<ResPaths> resPaths;
     std::queue<runnable> postRunnables;
     std::recursive_mutex postRunnablesMutex;
     std::unique_ptr<EngineController> controller;

src/frontend/debug_panel.cpp

@@ -2,6 +2,7 @@
 #include "../delegates.hpp"
 #include "../engine.hpp"
 #include "../settings.hpp"
+#include "../content/Content.hpp"
 #include "../graphics/core/Mesh.hpp"
 #include "../graphics/ui/elements/CheckBox.hpp"
 #include "../graphics/ui/elements/TextBox.hpp"

src/frontend/screens/LevelScreen.cpp

@@ -8,6 +8,7 @@
 #include "../../debug/Logger.hpp"
 #include "../../engine.hpp"
 #include "../../files/files.hpp"
+#include "../../content/Content.hpp"
 #include "../../graphics/core/DrawContext.hpp"
 #include "../../graphics/core/ImageData.hpp"
 #include "../../graphics/core/PostProcessing.hpp"

src/logic/scripting/lua/libpack.cpp

@@ -1,6 +1,7 @@
 #include "api_lua.hpp"
 
 #include "../../../engine.hpp"
+#include "../../../content/Content.hpp"
 #include "../../../assets/AssetsLoader.hpp"
 #include "../../../files/engine_paths.hpp"
 #include "../../../files/WorldFiles.hpp"

src/logic/scripting/scripting.cpp

@@ -2,6 +2,7 @@
 
 #include "lua/lua_engine.hpp"
 
+#include "../../content/Content.hpp"
 #include "../../content/ContentPack.hpp"
 #include "../../debug/Logger.hpp"
 #include "../../engine.hpp"

src/world/WorldGenerators.hpp

@@ -2,11 +2,12 @@
 #define WORLD_WORLDGENERATORS_HPP_
 
 #include "../voxels/WorldGenerator.hpp"
-#include "../content/Content.hpp"
 #include <map>
 #include <vector>
 #include <string>
 
+class Content;
+
 typedef WorldGenerator* (*gen_constructor) (const Content*);