Game/GigLine/Source/GigLine/GigLineVehicle.cpp

@@ -47,6 +47,16 @@ AGigLineVehicle::AGigLineVehicle(const FObjectInitializer& ObjectInitializer)
 {
 	PrimaryActorTick.bCanEverTick = true;
 
+	// Test: if disabling the movement component's tick stops the rise, the component is the writer.
+	if (FParse::Param(FCommandLine::Get(), TEXT("novehmover")))
+	{
+		if (UChaosVehicleMovementComponent* Mover = FindComponentByClass<UChaosVehicleMovementComponent>())
+		{
+			Mover->SetComponentTickEnabled(false);
+			Mover->Deactivate();
+		}
+	}
+
 	if (USkeletalMeshComponent* Body = GetMesh())
 	{
 		static ConstructorHelpers::FObjectFinder<USkeletalMesh> MeshFinder(
@@ -370,6 +380,30 @@ void AGigLineVehicle::Tick(float DeltaSeconds)
 		}
 	}
 
+	// Name what the body is actually inside. A single huge collision proxy somewhere in this map
+	// would explain a positional push at any height.
+	{
+		static bool bOverlapLogged = false;
+		if (!bOverlapLogged && SettleElapsed > 0.3f)
+		{
+			bOverlapLogged = true;
+			if (USkeletalMeshComponent* Body = GetMesh())
+			{
+				TArray<UPrimitiveComponent*> Overlaps;
+				Body->GetOverlappingComponents(Overlaps);
+				FString List;
+				for (const UPrimitiveComponent* Comp : Overlaps)
+				{
+					List += FString::Printf(TEXT("%s/%s "),
+						Comp->GetOwner() ? *Comp->GetOwner()->GetName() : TEXT("?"),
+						*Comp->GetName());
+				}
+				UE_LOG(LogTemp, Warning, TEXT("GigLine vehicle overlaps: %d [%s]"),
+					Overlaps.Num(), *List);
+			}
+		}
+	}
+
 	// Velocity profile: an impulse shows as a spike at t=0, a force as steady growth.
 	{
 		static float NextSample = 0.0f;