20 lesson - garbage collector

Author: life-exe

Content/SandboxMap.umap

@@ -16,7 +16,8 @@ void AGeometryHubActor::BeginPlay()
 
     // DoActorSpawn1();
     // DoActorSpawn2();
-    DoActorSpawn3();
+    // DoActorSpawn3();
+    DoActorSpawn4();
 }
 
 void AGeometryHubActor::DoActorSpawn1()
@@ -80,6 +81,17 @@ void AGeometryHubActor::DoActorSpawn3()
     }
 }
 
+void AGeometryHubActor::DoActorSpawn4()
+{
+    if(!GetWorld()) return;
+
+    FTransform GeometryTransform = FTransform(FRotator::ZeroRotator, FVector(700.0f, 300.0f, 300.0f));
+    NonePropertyActor = GetWorld()->SpawnActor<ABaseGeometryActor>(GeometryClass, GeometryTransform);
+
+    GeometryTransform = FTransform(FRotator::ZeroRotator, FVector(700.0f, 700.0f, 300.0f));
+    PropertyActor = GetWorld()->SpawnActor<ABaseGeometryActor>(GeometryClass, GeometryTransform);
+}
+
 void AGeometryHubActor::OnColorChanged(const FLinearColor& Color, const FString& Name)
 {
     UE_LOG(LogGeometryHub, Warning, TEXT("Actor name: %s Color %s"), *Name, *Color.ToString());
@@ -102,4 +114,7 @@ void AGeometryHubActor::OnTimerFinished(AActor* Actor)
 void AGeometryHubActor::Tick(float DeltaTime)
 {
     Super::Tick(DeltaTime);
+
+    UE_LOG(LogGeometryHub, Warning, TEXT("property pointer %i, is valid %i"), PropertyActor != nullptr, IsValid(PropertyActor));
+    UE_LOG(LogGeometryHub, Error, TEXT("none property pointer %i, is valid %i"), NonePropertyActor != nullptr, IsValid(NonePropertyActor));
 }

Source/GeometrySandbox/Private/GeometryHubActor.cpp

@@ -43,9 +43,15 @@ class GEOMETRYSANDBOX_API AGeometryHubActor : public AActor
     virtual void Tick(float DeltaTime) override;
 
 private:
+    ABaseGeometryActor* NonePropertyActor;
+
+    UPROPERTY()
+    ABaseGeometryActor* PropertyActor;
+
     void DoActorSpawn1();
     void DoActorSpawn2();
     void DoActorSpawn3();
+    void DoActorSpawn4();
 
     UFUNCTION()
     void OnColorChanged(const FLinearColor& Color, const FString& Name);