get Destructible Component chunk ID that hits actor

sivan · September 3, 2018, 2:09pm

Hi,
I have implemented damaging actors hit by destructible chunks by a hit event, but afterwards I want to avoid to damage actors moving into the stationary chunks.
Any idea how to get chunk ID from hit information? Then I can determine chunk speed to disable damage.
Thanks.

sivan · September 5, 2018, 7:59pm

ho-ho-ho, problem solved, crazy workaround used of course

Flash7 · February 6, 2020, 7:46pm

I’m having a similar issue, can you share your solution?

sivan · February 14, 2020, 9:13am

hi,
I use these functions to stop simulation, and reset collision:

void ARTSBuilding::FinishDestroyRTSEntity()
{
Multicast_FinishDestroyRTSBuilding();

Super::FinishDestroyRTSEntity();

}

void ARTSBuilding::Multicast_FinishDestroyRTSBuilding_Implementation()
{
for (auto DestructibleMeshComponent : DestructibleMeshes)
{
// some small chunks stay stationary somehow…
DestructibleMeshComponent->SetSimulatePhysics(false);

    // to deny collision with land and terrain
    DestructibleMeshComponent-&gt;SetCollisionEnabled(ECollisionEnabled::NoCollision);
    DestructibleMeshComponent-&gt;SetCollisionProfileName(TEXT("NoCollision"));

#if WITH_APEX
// from DestructibleMeshComponent->SetSimulatePhysics() false section - works!
PxRigidDynamic** PActorBuffer = NULL;
PxU32 PActorCount = 0;
if (DestructibleMeshComponent->ApexDestructibleActor->acquirePhysXActorBuffer(PActorBuffer, PActorCount))
{
for (uint32 ActorIdx = 0; ActorIdx < PActorCount; ++ActorIdx)
{
PxRigidDynamic* PActor = PActorBuffer[ActorIdx];
if (FApexDestructionCustomPayload* ChunkInfo = (FApexDestructionCustomPayload*)FPhysxUserData::Get<FCustomPhysXPayload>(PActor->userData))
{
DestructibleMeshComponent->ApexDestructibleActor->setChunkPhysXActorAwakeState(ChunkInfo->ChunkIndex, true);
}
}
DestructibleMeshComponent->ApexDestructibleActor->releasePhysXActorBuffer();
}
#endif
}
}