enable bGravityEnabled, bSimulatePhysics, and call WakeRigidBody on grab component's owning actor at BeginPlay() if bAffectPhysicsState is enabled

2024-08-16 16:44:34 +02:00
parent 787ab5aa96
commit 058bc5a87c
3 changed files with 30 additions and 0 deletions
@@ -135,4 +135,29 @@ USGGrabComponent::FImpl::~FImpl() = default;
 void USGGrabComponent::FImplDeleter::operator()(const FImpl* P) const
 {
    delete P;
+}
+
+void USGGrabComponent::BeginPlay()
+{
+    Super::BeginPlay();
+
+    if (bAffectPhysicsState)
+    {
+        const AActor* OwnerActor{GetOwner()};
+        if (!ensureAlwaysMsgf(IsValid(OwnerActor), TEXT("Invalid OwnerActor!")))
+        {
+            return;
+        }
+
+        UPrimitiveComponent* ActorRootComponent{Cast<UPrimitiveComponent>(OwnerActor->GetRootComponent())};
+        if (!ensureAlwaysMsgf(IsValid(ActorRootComponent),
+                              TEXT("RootComponent is not a valid UPrimativeComponent!")))
+        {
+            return;
+        }
+
+        ActorRootComponent->SetEnableGravity(true);
+        ActorRootComponent->SetSimulatePhysics(true);
+        ActorRootComponent->WakeRigidBody();
+    }
 }
@@ -196,4 +196,7 @@ public:
    {
        bAffectPhysicsState = bInAffectPhysicsState;
    }
+
+public:
+    virtual void BeginPlay() override;
 };