Class: ULambdaSystem

class SYSTEMS_API ULambdaSystem
    : public USystem;

Reflection-enabled

Specifiers:

• BlueprintType
• Blueprintable

Handy wrapper for state-less systems (functions or lambdas).

See USystem

Example

UFUNCTION()
void BoidsFaceDirectionSystem(USystemsWorld& Systems);

void BoidsFaceDirectionSystem(USystemsWorld& Systems)
{
	for (auto& QueryItem : Systems.Query<UVelocityComponent, UBoidComponent>())
	{
		auto* Actor = QueryItem.Get<0>();
		const auto* Velocity = QueryItem.Get<1>();

		if (Velocity->Value.IsNearlyZero() == false)
		{
			Actor->SetActorRotation(Velocity->Value.Rotation());
		}
	}
}

Systems.InstallLambdaSystem(BoidsFaceDirectionSystem, FInstallSystemOptions("BoidsFaceDirection"));

Methods

• Bind

  public:
  void Bind(
      TFunction<FunctorType>&& Func
  );
  

  ---

  Binds given function/lambda that runs some system logic.

  Method called by USystemsWorld::InstallLambdaSystem

  ---

  Arguments

  • Func

    TFunction<FunctorType>&& Func
    

• Unbind

  public:
  void Unbind();
  

  ---

  Unbinds stored function/lambda that runs some system logic.

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