feat: named bones and skeleton building

src/graphics/commons/Model.cpp

@@ -162,6 +162,12 @@ void Mesh::transform(const glm::mat4& matrix) {
     }
 }
 
+void Mesh::translate(const glm::vec3& offset) {
+    for (auto& vertex : vertices) {
+        vertex.coord += offset;
+    }
+}
+
 void Model::clean() {
     meshes.erase(
         std::remove_if(meshes.begin(), meshes.end(), 
@@ -178,6 +184,12 @@ void Model::transform(const glm::mat4& matrix) {
     }
 }
 
+void Model::translate(const glm::vec3& offset) {
+    for (auto& mesh : meshes) {
+        mesh.translate(offset);
+    }
+}
+
 void Model::merge(const Model& source) {
     for (const auto& srcMesh : source.meshes) {
         auto& dstMesh = addMesh(srcMesh.texture, srcMesh.shading);
@@ -188,3 +200,18 @@ void Model::merge(const Model& source) {
         );
     }
 }
+
+void Model::merge(Model&& source) {
+    for (auto& srcMesh : source.meshes) {
+        auto& dstMesh = addMesh(srcMesh.texture, srcMesh.shading);
+        if (dstMesh.vertices.empty()) {
+            dstMesh = std::move(srcMesh);
+        } else {
+            dstMesh.vertices.insert(
+                dstMesh.vertices.end(),
+                srcMesh.vertices.begin(),
+                srcMesh.vertices.end()
+            );
+        }
+    }
+}

src/graphics/commons/Model.hpp

@@ -75,6 +75,9 @@ namespace model {
 
         /// @brief Apply transformation matrix to vertices coordinates
         void transform(const glm::mat4& matrix);
+
+        /// @brief Move vertices coordinates by offset
+        void translate(const glm::vec3& offset);
     };
 
     struct Model {
@@ -92,14 +95,22 @@ namespace model {
             meshes.push_back({texture, {}, shading});
             return meshes[meshes.size() - 1];
         }
+
         /// @brief Remove all empty meshes
         void clean();
 
         /// @brief Apply transformation matrix to vertices coordinates
         void transform(const glm::mat4& matrix);
 
+        /// @brief Move vertices coordinates by offset
+        void translate(const glm::vec3& offset);
+
         /// @brief Copy or merge meshes from source model to this.
         /// Does not remove duplicates
         void merge(const Model& source);
+
+        /// @brief Move or merge meshes from source model to this.
+        /// Does not remove duplicates
+        void merge(Model&& source);
     };
 }