update Assets container - template-based now

src/frontend/ContentGfxCache.cpp

@@ -15,7 +15,7 @@
 ContentGfxCache::ContentGfxCache(const Content* content, Assets* assets) : content(content) {
     auto indices = content->getIndices();
     sideregions = std::make_unique<UVRegion[]>(indices->countBlockDefs() * 6);
-    Atlas* atlas = assets->getAtlas("blocks");
+    auto atlas = assets->get<Atlas>("blocks");
     
     for (uint i = 0; i < indices->countBlockDefs(); i++) {
         Block* def = indices->getBlockDef(i);

src/frontend/LevelFrontend.cpp

@@ -30,7 +30,7 @@ LevelFrontend::LevelFrontend(LevelController* controller, Assets* assets)
             }
 
             if (type == BlockInteraction::step) {
-                auto sound = assets->getSound(material->stepsSound);
+                auto sound = assets->get<audio::Sound>(material->stepsSound);
                 audio::play(
                     sound, 
                     glm::vec3(), 
@@ -45,10 +45,10 @@ LevelFrontend::LevelFrontend(LevelController* controller, Assets* assets)
                 audio::Sound* sound = nullptr;
                 switch (type) {
                     case BlockInteraction::placing:
-                        sound = assets->getSound(material->placeSound);
+                        sound = assets->get<audio::Sound>(material->placeSound);
                         break;
                     case BlockInteraction::destruction:
-                        sound = assets->getSound(material->breakSound);
+                        sound = assets->get<audio::Sound>(material->breakSound);
                         break; 
                     case BlockInteraction::step:
                         break;   

src/frontend/hud.cpp

@@ -208,7 +208,7 @@ void Hud::processInput(bool visible) {
         }
     }
     if (!pause && Events::active(BIND_DEVTOOLS_CONSOLE)) {
-        showOverlay(assets->getLayout("core:console"), false);
+        showOverlay(assets->get<UiDocument>("core:console"), false);
     }
     if (!Window::isFocused() && !pause && !isInventoryOpen()) {
         setPause(true);
@@ -305,7 +305,7 @@ void Hud::openInventory() {
 
     inventoryOpen = true;
     auto inventory = player->getInventory();
-    auto inventoryDocument = assets->getLayout("core:inventory");
+    auto inventoryDocument = assets->get<UiDocument>("core:inventory");
     inventoryView = std::dynamic_pointer_cast<InventoryView>(inventoryDocument->getRoot());
     inventoryView->bind(inventory, content);
     add(HudElement(hud_element_mode::inventory_bound, inventoryDocument, inventoryView, false));
@@ -460,7 +460,7 @@ void Hud::draw(const DrawContext& ctx){
     auto batch = ctx.getBatch2D();
     batch->begin();
 
-    Shader* uishader = assets->getShader("ui");
+    auto uishader = assets->get<Shader>("ui");
     uishader->use();
     uishader->uniformMatrix("u_projview", uicamera->getProjView());
 
@@ -468,7 +468,7 @@ void Hud::draw(const DrawContext& ctx){
     if (!pause && !inventoryOpen && !player->debug) {
         DrawContext chctx = ctx.sub();
         chctx.setBlendMode(BlendMode::inversion);
-        auto texture = assets->getTexture("gui/crosshair");
+        auto texture = assets->get<Texture>("gui/crosshair");
         batch->texture(texture);
         int chsizex = texture != nullptr ? texture->getWidth() : 16;
         int chsizey = texture != nullptr ? texture->getHeight() : 16;

src/frontend/screens/MenuScreen.cpp

@@ -35,14 +35,14 @@ void MenuScreen::draw(float delta) {
     Window::setBgColor(glm::vec3(0.2f));
 
     uicamera->setFov(Window::height);
-    Shader* uishader = assets->getShader("ui");
+    auto uishader = assets->get<Shader>("ui");
     uishader->use();
     uishader->uniformMatrix("u_projview", uicamera->getProjView());
 
     uint width = Window::width;
     uint height = Window::height;
 
-    auto bg = assets->getTexture("gui/menubg");
+    auto bg = assets->get<Texture>("gui/menubg");
     batch->begin();
     batch->texture(bg);
     batch->rect(