球内のフォリッジメッシュを判定

球内のフォリッジメッシュを判定

void AThirdPersonCppCharacter::TestFoliageMeshInSideSphere() { ULevel* Level = GetLevel(); // フォリッジアクターを取得 AInstancedFoliageActor* IFA = AInstancedFoliageActor::GetInstancedFoliageActorForLevel(Level); FVector vPos = GetActorLocation(); float fRadius = 10000.0f; // 100m FSphere SearchSphere(vPos, fRadius); // 球を描画 DrawDebugSphere(GWorld, vPos, fRadius, 8, FColor::White, false, 5.0f); // TMap<UFoliageType*, TUniqueObj<FFoliageMeshInfo>> FoliageMeshes; for (auto It = IFA->FoliageMeshes.CreateConstIterator(); It; ++It) { UFoliageType* Key = It.Key(); //FFoliageMeshInfo& Value = It.Value(); FFoliageMeshInfo const* MeshInfo = &*It.Value(); if (MeshInfo && MeshInfo->Component) { UHierarchicalInstancedStaticMeshComponent* HISMComponent = MeshInfo->Component; for(int32 i = 0; i < HISMComponent->PerInstanceSMData.Num(); i++) { FVector MeshPos = HISMComponent->PerInstanceSMData[i].Transform.GetOrigin(); bool bInside = SearchSphere.IsInside(MeshPos); FColor color = FColor::Red; if(bInside) { color = FColor::Green; } DrawDebugLine(GWorld, MeshPos, MeshPos + FVector(0, 0, 10000.0f), color, false, 5.0f); } } } }