feat: add "Add component" button

destrum/include/destrum/Serialization/ComponentFactory.h

@@ -5,6 +5,7 @@
 #include <memory>
 #include <string>
 #include <unordered_map>
+#include <vector>
 
 #include <destrum/ObjectModel/Component.h>
 #include <destrum/ObjectModel/GameObject.h>
@@ -17,6 +18,13 @@ public:
         Registry()[typeName] = std::move(createFn);
     }
 
+    template <typename TComponent>
+    static void Register(const char* typeName) {
+        Register(std::string{typeName}, [](GameObject& owner) -> Component* {
+            return owner.AddComponent<TComponent>();
+        });
+    }
+
     static Component* Create(const std::string& typeName, GameObject& owner) {
         const auto it = Registry().find(typeName);
 
@@ -31,6 +39,15 @@ public:
         return Registry().contains(typeName);
     }
 
+    [[nodiscard]] static std::vector<std::string> GetRegisteredTypeNames() {
+        std::vector<std::string> typeNames;
+        typeNames.reserve(Registry().size());
+        for (const auto& [typeName, _] : Registry()) {
+            typeNames.push_back(typeName);
+        }
+        return typeNames;
+    }
+
 private:
     static std::unordered_map<std::string, CreateFn>& Registry() {
         static std::unordered_map<std::string, CreateFn> registry;

destrum/include/destrum/Serialization/EngineComponentList.h

@@ -0,0 +1,27 @@
+#ifndef DESTRUM_ENGINECOMPONENTLIST_H
+#define DESTRUM_ENGINECOMPONENTLIST_H
+
+// Keep the component manifest in one place. Consumers define X before
+// expanding one of these lists to generate registration or other metadata.
+#include <destrum/Components/Animator.h>
+#include <destrum/Components/MeshRendererComponent.h>
+#include <destrum/Components/OrbitAndSpin.h>
+#include <destrum/Components/Rotator.h>
+#include <destrum/Components/Spinner.h>
+#include <destrum/Components/Physics/BoxCollider.h>
+#include <destrum/Components/Physics/CapsuleCollider.h>
+#include <destrum/Components/Physics/Rigidbody.h>
+#include <destrum/Components/Physics/SphereCollider.h>
+
+#define DESTRUM_ENGINE_COMPONENTS(X) \
+    X(MeshRendererComponent) \
+    X(Rotator) \
+    X(Spinner) \
+    X(OrbitAndSpin) \
+    X(Animator) \
+    X(Rigidbody) \
+    X(BoxCollider) \
+    X(SphereCollider) \
+    X(CapsuleCollider)
+
+#endif // DESTRUM_ENGINECOMPONENTLIST_H