初始提交: UE5.3项目基础框架

Plugins/CesiumForUnreal/Source/CesiumRuntime/Private/CesiumActors.cpp

@@ -0,0 +1,79 @@
+// Copyright 2020-2024 CesiumGS, Inc. and Contributors
+
+#include "CesiumActors.h"
+#include "CesiumRuntime.h"
+#include "Engine/World.h"
+
+#if WITH_EDITOR
+#include "Editor.h"
+#endif
+
+#include <glm/glm.hpp>
+
+glm::dvec4 CesiumActors::getWorldOrigin4D(const AActor* actor) {
+  if (!IsValid(actor)) {
+    UE_LOG(LogCesium, Warning, TEXT("The actor is not valid"));
+    return glm::dvec4();
+  }
+  const UWorld* world = actor->GetWorld();
+  if (!IsValid(world)) {
+    UE_LOG(
+        LogCesium,
+        Warning,
+        TEXT("The actor %s is not spawned in a level"),
+        *actor->GetName());
+    return glm::dvec4();
+  }
+  const FIntVector& originLocation = world->OriginLocation;
+  return glm::dvec4(originLocation.X, originLocation.Y, originLocation.Z, 1.0);
+}
+
+bool CesiumActors::shouldValidateFlags(UObject* object) {
+#if WITH_EDITOR
+  // Only fixup flags in the editor, when not in play mode
+  if (!IsValid(GEditor) || GEditor->IsPlaySessionInProgress())
+    return false;
+
+  // In addition, don't fix when loading from an asset file, which sets the
+  // RF_ClassDefaultObject and RF_ArchetypeObject flags.
+  if (object->HasAnyFlags(RF_ClassDefaultObject) ||
+      object->HasAnyFlags(RF_ArchetypeObject))
+    return false;
+  else
+    return true;
+#else
+  return false;
+#endif
+}
+
+void CesiumActors::validatePublicFlag(UObject* object, const FString& label) {
+  //
+  // From an Epic Engine Developer...
+  // RF_Public means that the object is an asset, so it should be only set for
+  // worlds, textures, meshes, etc. This flags essentially says it's ok to
+  // have a reference to public objects from other packages (with the
+  // exception of worlds). Actors are not assets since they are part of a
+  // level which is part of a world, etc. that's why they should not key the
+  // public flag.
+  //
+  // In earlier versions of cesium-unreal, this flag may have been set
+  //
+  if (object->HasAnyFlags(RF_Public)) {
+    UE_LOG(
+        LogCesium,
+        Display,
+        TEXT("Clearing invalid RF_Public flag on %s"),
+        *label);
+    object->ClearFlags(RF_Public);
+  }
+}
+
+void CesiumActors::validateActorFlags(AActor* actor) {
+  FString label = FString("actor: ") + *actor->GetName();
+  validatePublicFlag(actor, label);
+}
+
+void CesiumActors::validateActorComponentFlags(UActorComponent* component) {
+  FString label = FString("actor component: ") + *component->GetName();
+  validatePublicFlag(component, label);
+}