How to reset physics object state?

Development Programming & Scripting C++
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1

I have pooling system and i reuse objects, it works with other objects, but with physics simulated ones it doesnt work. I have a static mesh, throwable object, when i throw at first it goes from hands socket correctly, then it returns to pool, when i reuse that object again instead of going from the hand location where it is thrown, it does AddImpulse from the old location, how to fix such a problem? I tried multiple things, for example:

void ABreacherBarrel::Disable(const bool bHide)
{
	Mesh->SetSimulatePhysics(false);
	Mesh->DestroyPhysicsState();
	Mesh->RecreatePhysicsState();
	Super::Disable(bHide);
}

and then when i enable:

void AThrowable::Throw(const float InImpulseForce)
{
	Mesh->SetCollisionEnabled(ECollisionEnabled::QueryAndPhysics);
	Mesh->SetSimulatePhysics(true); 
	Mesh->AddImpulse((-GetActorRightVector() + GetActorForwardVector() * 0.3f).GetSafeNormal() * InImpulseForce, NAME_None, true);
	if (Data->GetNeedsOnHitEvent()) Mesh->OnComponentHit.AddDynamic(this, &AThrowable::OnHit);
}
2

Try resetting the angular and linear velocity

Mesh->SetPhysicsLinearVelocity(FVector(0,0,0), false);
Mesh->SetPhysicsAngularVelocityInDegrees(FVector(0, 0, 0));
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3

It worked! Thank you!

1 Like