Hello,
I have a bunch of instances static meshes being created each of these objects should have collision on them.
However, when I click on them they don’t trigger a hit (all the time)
This is my actor:
AMStar::AMStar()
{
PrimaryActorTick.bCanEverTick = true;
Star = CreateDefaultSubobject<UInstancedStaticMeshComponent>(TEXT("Star"));
static ConstructorHelpers::FObjectFinder<UStaticMesh> StarAsset(TEXT("/Game/Levels/Galaxy/GalaxyStarSphere"));
static ConstructorHelpers::FObjectFinder<UMaterial> MaterialAsset(TEXT("Material'/Game/Levels/Galaxy/MMaterial'"));
if (MaterialAsset.Succeeded())
{
Material = MaterialAsset.Object;
if (StarAsset.Succeeded())
{
Star->SetMaterial(0, Material);
Star->SetStaticMesh(StarAsset.Object);
Star->SetRelativeLocation(FVector(0.0f));
Star->Mobility = EComponentMobility::Static;
Star->SetCollisionEnabled(ECollisionEnabled::QueryOnly);
Star->SetCollisionObjectType(ECollisionChannel::ECC_Visibility);
Star->BodyInstance.SetCollisionProfileName("StarCollision");
Star->CastShadow = false;
}
}
RootComponent = Star;
}
This is the method I’m using to check for a “hit”
FHitResult HitResult;
AMainPlayerController* controller = Cast<AMainPlayerController>(GetController());
FVector worldLocation, worldDirection;
controller->DeprojectMousePositionToWorld(worldLocation, worldDirection);
UWorld* const World = GetWorld();
if (World != NULL)
{
const auto startLocation = worldLocation;
const auto targetLocation = worldLocation + worldDirection * 100000;
FCollisionQueryParams queryParams;
const FName myTraceTag("MyTraceTag");
World->DebugDrawTraceTag = myTraceTag;
queryParams.TraceTag = myTraceTag;
FCollisionResponseParams collisionParams;
World->LineTraceSingleByChannel(HitResult, startLocation, targetLocation, ECollisionChannel::ECC_Visibility, queryParams, collisionParams);
if (HitResult.bBlockingHit)
{
UE_LOG(LogTemp, Log, TEXT("I have been hit"));
}
}
I think there is something wrong with the line trace, this is me clicking the dead centre of the sphere.
I’m sure I have done something stupid, any help would be appreciated.
Many thanks
