Exemplo n.º 1
0
        public List <ObjectPlacementData> Calculate()
        {
            if (_path == null || _path.NumberOfSegments == 0 || !ObjectPlacementGuide.ExistsInScene)
            {
                return(new List <ObjectPlacementData>());
            }

            Prefab     placementGuidePrefab     = ObjectPlacementGuide.Instance.SourcePrefab;
            Vector3    placementGuideWorldScale = ObjectPlacementGuide.Instance.WorldScale;
            float      objectMissChance         = _path.Settings.ManualConstructionSettings.ObjectMissChance;
            Vector3    yOffsetVector            = _path.ExtensionPlane.normal * _path.Settings.ManualConstructionSettings.OffsetAlongGrowDirection;
            bool       allowObjectIntersection  = ObjectPlacementSettings.Get().ObjectIntersectionSettings.AllowIntersectionForPathPlacement;
            Quaternion placementGuideRotation   = ObjectPlacementGuide.Instance.WorldRotation;

            bool    rotateObjectsToFollowPath = _path.Settings.ManualConstructionSettings.RotateObjectsToFollowPath;
            Vector3 pathExtensionPlaneNormal  = _path.ExtensionPlane.normal;
            Vector3 firstSegmentExtensionDir  = _path.GetSegmentByIndex(0).ExtensionDirection;

            Quaternion firstSegmentRotation = Quaternion.LookRotation(firstSegmentExtensionDir, pathExtensionPlaneNormal);

            bool           randomizePrefabs     = _path.Settings.ManualConstructionSettings.RandomizePrefabs;
            PrefabCategory activePrefabCategory = PrefabCategoryDatabase.Get().ActivePrefabCategory;

            var objectPlacementDataInstances = new List <ObjectPlacementData>(_path.NumberOfSegments * 10);

            for (int segmentIndex = 0; segmentIndex < _path.NumberOfSegments; ++segmentIndex)
            {
                ObjectPlacementBoxStackSegment segment = _path.GetSegmentByIndex(segmentIndex);

                Quaternion worldRotation = placementGuideRotation;

                if (rotateObjectsToFollowPath)
                {
                    // Note: ObjectPlacementPathManualConstructionSession.cs line 451. The design is a wreck. AGAIN :)
                    if ((segmentIndex == 0 && _path.NumberOfSegments > 1 && segment.NumberOfStacks == 1))
                    {
                        Vector3 dirBetweenStacks = segment.GetStackByIndex(0).BasePosition - _path.GetSegmentByIndex(1).GetStackByIndex(0).BasePosition;
                        dirBetweenStacks.Normalize();

                        Quaternion segmentRotation = Quaternion.LookRotation(dirBetweenStacks, pathExtensionPlaneNormal);
                        Quaternion fromPlacementGuideRotationToThis = QuaternionExtensions.GetRelativeRotation(placementGuideRotation, segmentRotation);
                        worldRotation = fromPlacementGuideRotationToThis * worldRotation;
                    }
                    else
                    if (segmentIndex != 0)
                    {
                        Quaternion segmentRotation = Quaternion.LookRotation(segment.ExtensionDirection, pathExtensionPlaneNormal);
                        Quaternion fromFirstToThis = QuaternionExtensions.GetRelativeRotation(firstSegmentRotation, segmentRotation);
                        worldRotation = fromFirstToThis * worldRotation;
                    }
                }
                for (int stackIndex = 0; stackIndex < segment.NumberOfStacks; ++stackIndex)
                {
                    ObjectPlacementBoxStack stack = segment.GetStackByIndex(stackIndex);
                    if (stack.IsOverlappedByAnotherStack)
                    {
                        continue;
                    }

                    for (int stackBoxIndex = 0; stackBoxIndex < stack.NumberOfBoxes; ++stackBoxIndex)
                    {
                        ObjectPlacementBox box = stack.GetBoxByIndex(stackBoxIndex);
                        if (box.IsHidden)
                        {
                            continue;
                        }

                        if (ObjectPlacementMissChance.Missed(objectMissChance, ObjectPlacementPathManualConstructionSettings.MinObjectMissChance, ObjectPlacementPathManualConstructionSettings.MaxObjectMissChance))
                        {
                            continue;
                        }
                        if (!allowObjectIntersection && ObjectQueries.IntersectsAnyObjectsInScene(box.OrientedBox, true))
                        {
                            continue;
                        }

                        Vector3 worldScale = placementGuideWorldScale;
                        Prefab  prefab     = placementGuidePrefab;
                        if (randomizePrefabs && activePrefabCategory.NumberOfPrefabs != 0)
                        {
                            int    randomPrefabIndex = UnityEngine.Random.Range(0, activePrefabCategory.NumberOfPrefabs);
                            Prefab randomPrefab      = activePrefabCategory.GetPrefabByIndex(randomPrefabIndex);
                            if (randomPrefab != null && randomPrefab.UnityPrefab != null)
                            {
                                prefab     = activePrefabCategory.GetPrefabByIndex(randomPrefabIndex);
                                worldScale = prefab.UnityPrefab.transform.lossyScale;
                            }
                        }

                        var objectPlacementData = new ObjectPlacementData();
                        objectPlacementData.WorldPosition = ObjectPositionCalculator.CalculateObjectHierarchyPosition(prefab, box.Center + yOffsetVector, worldScale, worldRotation);
                        objectPlacementData.WorldScale    = worldScale;
                        objectPlacementData.WorldRotation = worldRotation;
                        objectPlacementData.Prefab        = prefab;
                        objectPlacementDataInstances.Add(objectPlacementData);
                    }
                }
            }

            return(objectPlacementDataInstances);
        }
Exemplo n.º 2
0
        public List <ObjectPlacementData> Calculate()
        {
            if (_block == null || _block.NumberOfSegments == 0 || !ObjectPlacementGuide.ExistsInScene)
            {
                return(new List <ObjectPlacementData>());
            }

            Prefab     placementGuidePrefab        = ObjectPlacementGuide.Instance.SourcePrefab;
            Vector3    placementGuideWorldScale    = ObjectPlacementGuide.Instance.WorldScale;
            Quaternion placementGuideWorldRotation = ObjectPlacementGuide.Instance.WorldRotation;
            float      objectMissChance            = _block.Settings.ManualConstructionSettings.ObjectMissChance;
            ObjectRotationRandomizationSettings blockObjectRotationRandomizationSettings = _block.Settings.ManualConstructionSettings.ObjectRotationRandomizationSettings;
            bool           randomizeRotations = blockObjectRotationRandomizationSettings.RandomizeRotation;
            Vector3        objectOffsetAlongExtensionPlaneNormal = _block.Settings.ManualConstructionSettings.OffsetAlongGrowDirection * _block.ExtensionPlane.normal;
            bool           allowObjectIntersection = ObjectPlacementSettings.Get().ObjectIntersectionSettings.AllowIntersectionForBlockPlacement;
            bool           randomizePrefabs        = _block.Settings.ManualConstructionSettings.RandomizePrefabs;
            PrefabCategory activePrefabCategory    = PrefabCategoryDatabase.Get().ActivePrefabCategory;
            ObjectPlacementBlockProjectionSettings projectionSettings = _block.Settings.BlockProjectionSettings;
            bool canProject = projectionSettings.ProjectOnSurface &&
                              (projectionSettings.CanProjectOnMesh || projectionSettings.CanProjectOnTerrain);

            var objectPlacementDataInstances = new List <ObjectPlacementData>(_block.NumberOfSegments * 10);

            for (int segmentIndex = 0; segmentIndex < _block.NumberOfSegments; ++segmentIndex)
            {
                ObjectPlacementBoxStackSegment segment = _block.GetSegmentByIndex(segmentIndex);
                for (int stackIndex = 0; stackIndex < segment.NumberOfStacks; ++stackIndex)
                {
                    ObjectPlacementBoxStack stack = segment.GetStackByIndex(stackIndex);
                    if (stack.IsOverlappedByAnotherStack || stack.NumberOfBoxes == 0)
                    {
                        continue;
                    }

                    Vector3          projectionOffset     = Vector3.zero;
                    Vector3          projectionDirection  = Vector3.zero;
                    Quaternion       prjAlignRotation     = Quaternion.identity;
                    GameObjectRayHit projectionSurfaceHit = null;

                    if (canProject)
                    {
                        Vector3 rayOrigin = stack.GetBoxByIndex(0).Center;
                        Vector3 rayDir    = Vector3.zero;

                        if (projectionSettings.ProjectionDirection == ObjectBlockProjectionDir.BlockUp)
                        {
                            rayDir = _block.ExtensionPlane.normal;
                        }
                        else
                        {
                            rayDir = -_block.ExtensionPlane.normal;
                        }

                        projectionDirection = rayDir;

                        Ray ray = new Ray(rayOrigin, rayDir);
                        GameObjectRayHit closestMeshHit    = null;
                        GameObjectRayHit closestTerrainHit = null;

                        if (projectionSettings.CanProjectOnMesh)
                        {
                            closestMeshHit = Octave3DScene.Get().RaycastAllMeshClosest(ray);
                        }
                        if (projectionSettings.CanProjectOnTerrain)
                        {
                            closestTerrainHit = Octave3DScene.Get().RaycastAllTerainsClosest(ray);
                        }

                        // Ignore stack if no surface was found and non-projectables must be rejected
                        if (closestMeshHit == null && closestTerrainHit == null)
                        {
                            if (projectionSettings.RejectNonProjectables)
                            {
                                continue;
                            }
                        }
                        else
                        {
                            projectionSurfaceHit = closestMeshHit;
                            if (closestMeshHit == null || (closestTerrainHit != null && closestMeshHit.HitEnter > closestTerrainHit.HitEnter))
                            {
                                projectionSurfaceHit = closestTerrainHit;
                            }
                        }

                        if (projectionSurfaceHit != null)
                        {
                            ObjectPlacementBox projectionBox = stack.GetBoxByIndex(0);
                            projectionOffset = projectionSurfaceHit.HitPoint - stack.GetBoxByIndex(0).Center;

                            if (projectionOffset.sqrMagnitude > (projectionSurfaceHit.HitPoint - stack.GetBoxByIndex(stack.NumberOfBoxes - 1).Center).sqrMagnitude)
                            {
                                projectionBox    = stack.GetBoxByIndex(stack.NumberOfBoxes - 1);
                                projectionOffset = projectionSurfaceHit.HitPoint - projectionBox.Center;
                            }

                            if (!projectionSettings.AlignToSurfaceNormal)
                            {
                                var     oobb      = projectionBox.OrientedBox;
                                Vector3 oldCenter = oobb.Center;
                                GameObjectExtensions.EmbedObjectBoxInSurface(oobb, projectionDirection, projectionSurfaceHit.HitObject);
                                projectionOffset = oobb.Center - oldCenter;
                            }
                        }
                    }

                    for (int stackBoxIndex = 0; stackBoxIndex < stack.NumberOfBoxes; ++stackBoxIndex)
                    {
                        ObjectPlacementBox box = stack.GetBoxByIndex(stackBoxIndex);
                        if (box.IsHidden)
                        {
                            continue;
                        }

                        if (ObjectPlacementMissChance.Missed(objectMissChance, ObjectPlacementBlockManualConstructionSettings.MinObjectMissChance,
                                                             ObjectPlacementBlockManualConstructionSettings.MaxObjectMissChance))
                        {
                            continue;
                        }

                        if (!allowObjectIntersection && ObjectQueries.IntersectsAnyObjectsInScene(box.OrientedBox, true))
                        {
                            continue;
                        }

                        Quaternion worldRotation = placementGuideWorldRotation;
                        if (randomizeRotations)
                        {
                            worldRotation = ObjectRotationRandomization.GenerateRandomRotationQuaternion(blockObjectRotationRandomizationSettings);
                        }

                        Vector3 worldScale = placementGuideWorldScale;
                        Prefab  prefab     = placementGuidePrefab;
                        if (randomizePrefabs && activePrefabCategory.NumberOfPrefabs != 0)
                        {
                            int    randomPrefabIndex = UnityEngine.Random.Range(0, activePrefabCategory.NumberOfPrefabs);
                            Prefab randomPrefab      = activePrefabCategory.GetPrefabByIndex(randomPrefabIndex);
                            if (randomPrefab != null && randomPrefab.UnityPrefab != null)
                            {
                                prefab     = activePrefabCategory.GetPrefabByIndex(randomPrefabIndex);
                                worldScale = prefab.UnityPrefab.transform.lossyScale;
                            }
                        }

                        Vector3 boxCenter = box.Center + objectOffsetAlongExtensionPlaneNormal + projectionOffset;
                        if (projectionSurfaceHit != null)
                        {
                            if (projectionSettings.AlignToSurfaceNormal)
                            {
                                worldRotation = AxisAlignment.CalculateRotationQuaternionForAxisAlignment(worldRotation, projectionSettings.AlignmentAxis, projectionSurfaceHit.HitNormal);
                                OrientedBox prefabWorldOOBB = prefab.UnityPrefab.GetHierarchyWorldOrientedBox();
                                Vector3     oobbSize        = prefabWorldOOBB.ScaledSize;
                                int         axisIndex       = (int)((int)(projectionSettings.AlignmentAxis) * 0.5f);
                                boxCenter = projectionSurfaceHit.HitPoint + projectionSurfaceHit.HitNormal * oobbSize[axisIndex] * 0.5f + (oobbSize[axisIndex] * stackBoxIndex * projectionSurfaceHit.HitNormal);
                            }
                        }

                        var objectPlacementData = new ObjectPlacementData();
                        objectPlacementData.WorldPosition = ObjectPositionCalculator.CalculateObjectHierarchyPosition(prefab, boxCenter, worldScale, worldRotation);
                        objectPlacementData.WorldScale    = worldScale;
                        objectPlacementData.WorldRotation = worldRotation;
                        objectPlacementData.Prefab        = prefab;
                        objectPlacementDataInstances.Add(objectPlacementData);
                    }
                }
            }

            return(objectPlacementDataInstances);
        }
Exemplo n.º 3
0
        private List <ObjectPlacementData> GetPlacementDataForAutofillTiles(ObjectPlacementPathTileConnectionGrid tileConnectionGrid)
        {
            Prefab      autofillPrefab = _path.Settings.TileConnectionSettings.GetSettingsForTileConnectionType(ObjectPlacementPathTileConnectionType.Autofill).Prefab;
            OrientedBox autoFillPrefabWorldOrientedBox = autofillPrefab.UnityPrefab.GetHierarchyWorldOrientedBox();
            Vector3     autofillPrefabBoxSize          = autoFillPrefabWorldOrientedBox.ScaledSize;
            Plane       extensionPlane   = _path.ExtensionPlane;
            float       objectMissChance = _path.Settings.ManualConstructionSettings.ObjectMissChance;
            bool        usingSprites     = _path.Settings.TileConnectionSettings.UsesSprites();

            var     tileConnectionScaleCalculator         = new ObjectPlacementPathTileConnectionScaleCalculator();
            var     tileConnectionYOffsetVectorCalculator = new ObjectPlacementPathTileConnectionYOffsetVectorCalculator();
            Vector3 worldScale    = tileConnectionScaleCalculator.CalculateWorldScale(_tileConnectionXZSize, autofillPrefabBoxSize, autofillPrefab.UnityPrefab.transform, _path);
            Vector3 yOffsetVector = tileConnectionYOffsetVectorCalculator.Calculate(_path.Settings.TileConnectionSettings.GetSettingsForTileConnectionType(ObjectPlacementPathTileConnectionType.Autofill), _path);

            List <ObjectPlacementPathTileConnectionGridCell> autoFillTileConnectionGridCells = tileConnectionGrid.CreateAndReturnAutofillTileConnectionCells();

            if (autoFillTileConnectionGridCells.Count == 0)
            {
                return(new List <ObjectPlacementData>());
            }

            // Note: All autofill tiles have the same rotation.
            Quaternion worldRotation = (new ObjectPlacementPathTileConnectionRotationCalculator()).Calculate(autoFillTileConnectionGridCells[0]);
            var        objectPlacementDataInstances = new List <ObjectPlacementData>(autoFillTileConnectionGridCells.Count);

            foreach (ObjectPlacementPathTileConnectionGridCell autofillGridCell in autoFillTileConnectionGridCells)
            {
                if (ObjectPlacementMissChance.Missed(objectMissChance, ObjectPlacementPathManualConstructionSettings.MinObjectMissChance, ObjectPlacementPathManualConstructionSettings.MaxObjectMissChance))
                {
                    continue;
                }

                Vector3 cellPosition = tileConnectionGrid.CalculateCellPosition(autofillGridCell.CellIndices);
                Vector3 cellPositionOnPathExtensionPlane = extensionPlane.ProjectPoint(cellPosition);

                OrientedBox tileOrientedBox = new OrientedBox(autoFillPrefabWorldOrientedBox);
                tileOrientedBox.Center   = cellPositionOnPathExtensionPlane + extensionPlane.normal * (usingSprites ? 0.0f : autofillPrefabBoxSize.y * 0.5f);
                tileOrientedBox.Rotation = worldRotation;
                tileOrientedBox.Scale    = worldScale;
                if (!_allowObjectIntersection && ObjectQueries.IntersectsAnyObjectsInScene(tileOrientedBox, true))
                {
                    continue;
                }

                var objectPlacementData = new ObjectPlacementData();
                objectPlacementData.WorldPosition = ObjectPositionCalculator.CalculateObjectHierarchyPosition(autofillPrefab, tileOrientedBox.Center, worldScale, worldRotation) + yOffsetVector;
                objectPlacementData.WorldScale    = worldScale;
                objectPlacementData.WorldRotation = worldRotation;
                objectPlacementData.Prefab        = autofillPrefab;
                objectPlacementDataInstances.Add(objectPlacementData);

                // Apply extrusion if necessary
                if (!usingSprites)
                {
                    List <OrientedBox> extrusionOrientedBoxes = ObjectPlacementPathTileConnectionExtrusion.GetTileConnectionExtrusionOrientedBoxes(autofillGridCell);
                    foreach (OrientedBox extrusionBox in extrusionOrientedBoxes)
                    {
                        if (ObjectPlacementMissChance.Missed(objectMissChance, ObjectPlacementPathManualConstructionSettings.MinObjectMissChance, ObjectPlacementPathManualConstructionSettings.MaxObjectMissChance))
                        {
                            continue;
                        }
                        if (!_allowObjectIntersection && ObjectQueries.IntersectsAnyObjectsInScene(extrusionBox, true))
                        {
                            continue;
                        }

                        objectPlacementData = new ObjectPlacementData();
                        objectPlacementData.WorldPosition = ObjectPositionCalculator.CalculateObjectHierarchyPosition(autofillPrefab, extrusionBox.Center, worldScale, worldRotation);
                        objectPlacementData.WorldScale    = worldScale;
                        objectPlacementData.WorldRotation = worldRotation;
                        objectPlacementData.Prefab        = autofillPrefab;
                        objectPlacementDataInstances.Add(objectPlacementData);
                    }
                }
            }

            return(objectPlacementDataInstances);
        }
Exemplo n.º 4
0
        public List <ObjectPlacementData> Calculate()
        {
            if (!ValidatePlacementDataCalculationConditions())
            {
                return(new List <ObjectPlacementData>());
            }

            _allowObjectIntersection = ObjectPlacementSettings.Get().ObjectIntersectionSettings.AllowIntersectionForPathPlacement;
            List <ObjectPlacementBoxStackSegment> allPathSegments = _path.GetAllSegments();
            float objectMissChance = _path.Settings.ManualConstructionSettings.ObjectMissChance;
            bool  usingSprites     = _path.Settings.TileConnectionSettings.UsesSprites();

            var tileConnectionDetector           = new ObjectPlacementPathTileConnectionDetector();
            var tileConnectionRotationCalculator = new ObjectPlacementPathTileConnectionRotationCalculator();

            List <ObjectPlacementPathTileConnectionGridCell> tileConnectionGridCells = tileConnectionDetector.Detect(_path, _tileConnectionXZSize);

            if (tileConnectionGridCells.Count == 0)
            {
                return(new List <ObjectPlacementData>());
            }

            List <Prefab>  tileConnectionPrefabsExceptAutofill          = PathObjectPlacement.Get().PathSettings.TileConnectionSettings.GetAllTileConnectionPrefabs(true);
            List <Vector3> tileConnectionWorldScaleValuesExceptAutofill = CalculateWorldScaleForAllTileConnectionPrefabsExceptAutofill(PrefabQueries.GetTransformsForAllPrefabs(tileConnectionPrefabsExceptAutofill), PrefabQueries.GetHierarchyWorldOrientedBoxesForAllPrefabs(tileConnectionPrefabsExceptAutofill));
            List <Vector3> tileConnectionOffsetsExceptAutofill          = CalculateOffsetsForAllTileConnectionsExceptAutofill();

            var objectPlacementDataInstances = new List <ObjectPlacementData>(allPathSegments.Count * 10);

            foreach (ObjectPlacementPathTileConnectionGridCell tileConnectionGridCell in tileConnectionGridCells)
            {
                ObjectPlacementPathTileConnectionType tileConnectionType = tileConnectionGridCell.TileConnectionType;
                ObjectPlacementBoxStack tileConnectionStack = tileConnectionGridCell.TileConnectionStack;
                if (tileConnectionStack.IsOverlappedByAnotherStack)
                {
                    continue;
                }

                Prefab     tileConnectionPrefab     = tileConnectionPrefabsExceptAutofill[(int)tileConnectionType];
                Quaternion tileConnectionRotation   = tileConnectionRotationCalculator.Calculate(tileConnectionGridCell);
                Vector3    tileConnectionWorldScale = tileConnectionWorldScaleValuesExceptAutofill[(int)tileConnectionType];
                Vector3    tileConnectionOffset     = tileConnectionOffsetsExceptAutofill[(int)tileConnectionType];

                for (int stackBoxIndex = 0; stackBoxIndex < tileConnectionStack.NumberOfBoxes; ++stackBoxIndex)
                {
                    ObjectPlacementBox box = tileConnectionStack.GetBoxByIndex(stackBoxIndex);
                    if (box.IsHidden)
                    {
                        continue;
                    }

                    if (ObjectPlacementMissChance.Missed(objectMissChance, ObjectPlacementPathManualConstructionSettings.MinObjectMissChance, ObjectPlacementPathManualConstructionSettings.MaxObjectMissChance))
                    {
                        continue;
                    }
                    if (!_allowObjectIntersection && ObjectQueries.IntersectsAnyObjectsInScene(box.OrientedBox, true))
                    {
                        continue;
                    }

                    var objectPlacementData = new ObjectPlacementData();
                    objectPlacementData.WorldPosition  = ObjectPositionCalculator.CalculateObjectHierarchyPosition(tileConnectionPrefab, box.Center, tileConnectionWorldScale, tileConnectionRotation);
                    objectPlacementData.WorldPosition += tileConnectionOffset;

                    objectPlacementData.WorldScale    = tileConnectionWorldScale;
                    objectPlacementData.WorldRotation = tileConnectionRotation;
                    objectPlacementData.Prefab        = tileConnectionPrefab;
                    objectPlacementDataInstances.Add(objectPlacementData);
                }

                // Apply extrusion if necessary
                if (!usingSprites)
                {
                    List <OrientedBox> extrusionOrientedBoxes = ObjectPlacementPathTileConnectionExtrusion.GetTileConnectionExtrusionOrientedBoxes(tileConnectionGridCell);
                    foreach (OrientedBox extrusionBox in extrusionOrientedBoxes)
                    {
                        if (ObjectPlacementMissChance.Missed(objectMissChance, ObjectPlacementPathManualConstructionSettings.MinObjectMissChance, ObjectPlacementPathManualConstructionSettings.MaxObjectMissChance))
                        {
                            continue;
                        }
                        if (!_allowObjectIntersection && ObjectQueries.IntersectsAnyObjectsInScene(extrusionBox, true))
                        {
                            continue;
                        }

                        var objectPlacementData = new ObjectPlacementData();
                        objectPlacementData.WorldPosition = ObjectPositionCalculator.CalculateObjectHierarchyPosition(tileConnectionPrefab, extrusionBox.Center, tileConnectionWorldScale, tileConnectionRotation);
                        objectPlacementData.WorldScale    = tileConnectionWorldScale;
                        objectPlacementData.WorldRotation = tileConnectionRotation;
                        objectPlacementData.Prefab        = tileConnectionPrefab;
                        objectPlacementDataInstances.Add(objectPlacementData);
                    }
                }
            }

            ObjectPlacementPathTileConnectionSettings tileConnectionSettings = _path.Settings.TileConnectionSettings;

            if (tileConnectionSettings.DoesAutofillTileConnectionHavePrefabAssociated())
            {
                objectPlacementDataInstances.AddRange(GetPlacementDataForAutofillTiles(tileConnectionGridCells[0].ParentGrid));
            }

            return(objectPlacementDataInstances);
        }
Exemplo n.º 5
0
        public List <ObjectPlacementData> Calculate()
        {
            if (_block == null || _block.NumberOfSegments == 0 || !ObjectPlacementGuide.ExistsInScene)
            {
                return(new List <ObjectPlacementData>());
            }

            Prefab     placementGuidePrefab        = ObjectPlacementGuide.Instance.SourcePrefab;
            Vector3    placementGuideWorldScale    = ObjectPlacementGuide.Instance.WorldScale;
            Quaternion placementGuideWorldRotation = ObjectPlacementGuide.Instance.WorldRotation;
            float      objectMissChance            = _block.Settings.ManualConstructionSettings.ObjectMissChance;
            ObjectRotationRandomizationSettings blockObjectRotationRandomizationSettings = _block.Settings.ManualConstructionSettings.ObjectRotationRandomizationSettings;
            bool           randomizeRotations = blockObjectRotationRandomizationSettings.RandomizeRotation;
            Vector3        objectOffsetAlongExtensionPlaneNormal = _block.Settings.ManualConstructionSettings.OffsetAlongGrowDirection * _block.ExtensionPlane.normal;
            bool           allowObjectIntersection = ObjectPlacementSettings.Get().ObjectIntersectionSettings.AllowIntersectionForBlockPlacement;
            bool           randomizePrefabs        = _block.Settings.ManualConstructionSettings.RandomizePrefabs;
            PrefabCategory activePrefabCategory    = PrefabCategoryDatabase.Get().ActivePrefabCategory;

            var objectPlacementDataInstances = new List <ObjectPlacementData>(_block.NumberOfSegments * 10);

            for (int segmentIndex = 0; segmentIndex < _block.NumberOfSegments; ++segmentIndex)
            {
                ObjectPlacementBoxStackSegment segment = _block.GetSegmentByIndex(segmentIndex);
                for (int stackIndex = 0; stackIndex < segment.NumberOfStacks; ++stackIndex)
                {
                    ObjectPlacementBoxStack stack = segment.GetStackByIndex(stackIndex);
                    if (stack.IsOverlappedByAnotherStack)
                    {
                        continue;
                    }

                    for (int stackBoxIndex = 0; stackBoxIndex < stack.NumberOfBoxes; ++stackBoxIndex)
                    {
                        ObjectPlacementBox box = stack.GetBoxByIndex(stackBoxIndex);
                        if (box.IsHidden)
                        {
                            continue;
                        }

                        if (ObjectPlacementMissChance.Missed(objectMissChance, ObjectPlacementBlockManualConstructionSettings.MinObjectMissChance, ObjectPlacementBlockManualConstructionSettings.MaxObjectMissChance))
                        {
                            continue;
                        }

                        if (!allowObjectIntersection && ObjectQueries.IntersectsAnyObjectsInScene(box.OrientedBox, true))
                        {
                            continue;
                        }

                        Quaternion worldRotation = placementGuideWorldRotation;
                        if (randomizeRotations)
                        {
                            worldRotation = ObjectRotationRandomization.GenerateRandomRotationQuaternion(blockObjectRotationRandomizationSettings);
                        }

                        Vector3 worldScale = placementGuideWorldScale;
                        Prefab  prefab     = placementGuidePrefab;
                        if (randomizePrefabs && activePrefabCategory.NumberOfPrefabs != 0)
                        {
                            int    randomPrefabIndex = UnityEngine.Random.Range(0, activePrefabCategory.NumberOfPrefabs);
                            Prefab randomPrefab      = activePrefabCategory.GetPrefabByIndex(randomPrefabIndex);
                            if (randomPrefab != null && randomPrefab.UnityPrefab != null)
                            {
                                prefab     = activePrefabCategory.GetPrefabByIndex(randomPrefabIndex);
                                worldScale = prefab.UnityPrefab.transform.lossyScale;
                            }
                        }

                        var objectPlacementData = new ObjectPlacementData();
                        objectPlacementData.WorldPosition = ObjectPositionCalculator.CalculateObjectHierarchyPosition(prefab, box.Center + objectOffsetAlongExtensionPlaneNormal, worldScale, placementGuideWorldRotation);
                        objectPlacementData.WorldScale    = worldScale;
                        objectPlacementData.WorldRotation = worldRotation;
                        objectPlacementData.Prefab        = prefab;
                        objectPlacementDataInstances.Add(objectPlacementData);
                    }
                }
            }

            return(objectPlacementDataInstances);
        }