Better scene management.

src/Engine/Level/Scene.cpp

@@ -1,4 +1,4 @@
-#include "Engine/Level/Scene.h"
+#include <Engine/Level/Scene.h>
 
 bool Scene::EntityListContains(const Entity* entity) const {
     for (auto* e : EntityList)
@@ -47,6 +47,18 @@ Scene::~Scene() {
 
     for (auto* e : EntityList)
         delete e;
+
+    delete HeadsUpDisplay;
+}
+
+void Scene::Unload() {
+    for (auto* f : FixedList)
+        delete f;
+
+    for (auto* e : EntityList)
+        delete e;
+
+    delete HeadsUpDisplay;
 }
 
 void Scene::AppendEntity(Entity* entity) {
@@ -84,3 +96,7 @@ void Scene::RemoveFixed(Fixed* fixed) {
         FixedList.erase(it);
 }
 
+std::string Scene::GetName() const {
+    return name;
+}
+