Beispiel #1
0
        public static void Generate(IBuilding building, IVolume volume, IFloorplan floorplan, int volumeFloor, VerticalOpening[] openings, BuildRMesh mesh, BuildRCollider collider)
        {
            SubmeshLibrary submeshLibrary = mesh.submeshLibrary;

            bool           generateColliders     = building.colliderType != BuildingColliderTypes.None;
            bool           generateMeshColliders = building.colliderType != BuildingColliderTypes.Primitive && generateColliders;
            BuildRCollider sendCollider          = (generateColliders) ? collider : null;

            collider.thickness = volume.wallThickness;
            if (!generateMeshColliders)
            {
                collider = null;
            }

            float   wallThickness = volume.wallThickness;
            float   wallUp        = volume.floorHeight - wallThickness;
            Vector3 wallUpV       = Vector3.up * wallUp;
            Vector3 floorBaseV    = Vector3.up * volume.baseHeight;

            int roomCount = floorplan.RoomCount;

            int actualFloor  = building.VolumeBaseFloor(volume) + volumeFloor;
            int openingCount = openings.Length;

            bool[]       openingBelow           = new bool[openingCount];
            bool[]       openingAbove           = new bool[openingCount];
            FlatBounds[] openingBounds          = new FlatBounds[openingCount];
            Vector2[][]  openingShapes          = new Vector2[openingCount][];
            bool[]       openingUsedInThisFloor = new bool[openingCount];
            for (int o = 0; o < openingCount; o++)
            {
                VerticalOpening opening = openings[o];
                if (!openings[o].FloorIsIncluded(actualFloor))
                {
                    continue;
                }
                openingBelow[o]  = opening.FloorIsIncluded(actualFloor - 1);
                openingAbove[o]  = opening.FloorIsIncluded(actualFloor + 1);
                openingShapes[o] = opening.PointsRotated();
                openingBounds[o] = new FlatBounds(openingShapes[o]);

                submeshLibrary.Add(opening.surfaceA);
                submeshLibrary.Add(opening.surfaceB);
                submeshLibrary.Add(opening.surfaceC);
                submeshLibrary.Add(opening.surfaceD);
            }

            Dictionary <int, List <Vector2Int> > externalWallAnchors = volume.facadeWallAnchors;

            Room[] rooms = floorplan.AllRooms();
            for (int r = 0; r < roomCount; r++)
            {
                Room room       = rooms[r];
                int  pointCount = room.numberOfPoints;

                Surface floorSurface   = null;
                Surface wallSurface    = null;
                Surface ceilingSurface = null;

                if (room.style != null)
                {
                    RoomStyle style = room.style;
                    floorSurface   = style.floorSurface;
                    wallSurface    = style.wallSurface;
                    ceilingSurface = style.ceilingSurface;
                }

                int floorSubmesh   = submeshLibrary.SubmeshAdd(floorSurface);
                int wallSubmesh    = submeshLibrary.SubmeshAdd(wallSurface);
                int ceilingSubmesh = submeshLibrary.SubmeshAdd(ceilingSurface);

                FloorplanUtil.RoomWall[] walls = FloorplanUtil.CalculatePoints(room, volume);
                Vector2[] roomArchorPoints     = FloorplanUtil.RoomArchorPoints(walls);

                Vector4 tangent = BuildRMesh.CalculateTangent(Vector3.right);

                Vector2[] offsetRoomAnchorPoints = QuickPolyOffset.Execute(roomArchorPoints, wallThickness);

                FlatBounds             roomBounds   = new FlatBounds(offsetRoomAnchorPoints);
                List <Vector2[]>       floorCuts    = new List <Vector2[]>();
                List <Vector2[]>       ceilingCuts  = new List <Vector2[]>();
                List <VerticalOpening> roomOpenings = new List <VerticalOpening>();
                for (int o = 0; o < openingCount; o++)
                {
                    if (openings[o].FloorIsIncluded(actualFloor))
                    {
                        if (roomBounds.Overlaps(openingBounds[o]))
                        {
                            if (CheckShapeWithinRoom(offsetRoomAnchorPoints, openingShapes[o]))
                            {
                                if (openingBelow[o])
                                {
                                    floorCuts.Add(openingShapes[o]);
                                }
                                if (openingAbove[o])
                                {
                                    ceilingCuts.Add(openingShapes[o]);
                                }
                                if (openingAbove[o] || openingBelow[o])
                                {
                                    roomOpenings.Add(openings[o]);
                                    openingUsedInThisFloor[o] = true;
                                }
                            }
                        }
                    }
                }

                int offsetPointBase = 0;
                for (int p = 0; p < pointCount; p++)//generate room walls
                {
                    FloorplanUtil.RoomWall wall = walls[p];
                    int wallPointCount          = wall.offsetPoints.Length;

                    List <RoomPortal> wallPortals = floorplan.GetWallPortals(room, p);
                    int wallPortalCount           = wallPortals.Count;

                    if (!wall.isExternal)
                    {
                        int     indexA    = offsetPointBase;
                        int     indexB    = (offsetPointBase + 1) % roomArchorPoints.Length;
                        Vector2 origBaseA = roomArchorPoints[indexA];
                        Vector2 origBaseB = roomArchorPoints[indexB];
                        Vector2 baseA     = offsetRoomAnchorPoints[indexA];
                        Vector2 baseB     = offsetRoomAnchorPoints[indexB];
                        Vector3 v0        = new Vector3(origBaseA.x, 0, origBaseA.y) + floorBaseV;
                        Vector3 v1        = new Vector3(origBaseB.x, 0, origBaseB.y) + floorBaseV;
                        Vector3 vOffset0  = new Vector3(baseA.x, 0, baseA.y) + floorBaseV;
                        Vector3 vOffset1  = new Vector3(baseB.x, 0, baseB.y) + floorBaseV;
                        if (wallPortalCount == 0)  //just draw the wall - no portals to cut

                        {
                            Vector3 v2 = vOffset1 + wallUpV;
                            Vector3 v3 = vOffset0 + wallUpV;

                            Vector2 minUV = Vector2.zero;
                            Vector2 maxUV = new Vector2(Vector2.Distance(baseA, baseB), wallUp);
                            if (wallSurface != null)
                            {
                                maxUV = wallSurface.CalculateUV(maxUV);
                            }
                            Vector3 wallDir     = (vOffset0 - vOffset1).normalized;
                            Vector3 wallNormal  = Vector3.Cross(Vector3.up, wallDir);
                            Vector4 wallTangent = BuildRMesh.CalculateTangent(wallDir);
                            mesh.AddPlane(vOffset1, vOffset0, v2, v3, minUV, maxUV, wallNormal, wallTangent, wallSubmesh, wallSurface);

                            if (generateColliders)
                            {
                                collider.AddPlane(vOffset1, vOffset0, v2, v3);
                            }
                        }
                        else
                        {
                            List <float> useLaterals = new List <float>();
                            List <bool>  hasPortals  = new List <bool>();
                            for (int wp = 0; wp < wallPortalCount; wp++)
                            {
                                RoomPortal portal    = wallPortals[wp];
                                bool       hasPortal = room.HasPortal(portal);
                                hasPortals.Add(hasPortal);
                                if (hasPortal)
                                {
                                    useLaterals.Add(portal.lateralPosition);
                                }
                                else
                                {
                                    useLaterals.Add(1 - portal.lateralPosition);//portal from other wall - wall orientation is flipped
                                }
                            }

                            Vector3 wallVector               = vOffset1 - vOffset0;
                            Vector3 wallDirection            = wallVector.normalized;
                            Vector3 wallStart                = vOffset0;
                            Vector4 wallTangent              = BuildRMesh.CalculateTangent(wallDirection);
                            Vector3 wallNormal               = Vector3.Cross(Vector3.up, wallDirection);
                            Vector4 wallNormalTangent        = BuildRMesh.CalculateTangent(wallNormal);
                            Vector4 wallNormalTangentReverse = BuildRMesh.CalculateTangent(-wallNormal);

                            while (wallPortalCount > 0)
                            {
                                int        portalIndex = 0;
                                RoomPortal usePortal   = wallPortals[0];
                                float      lowestLat   = useLaterals[0];
                                for (int wp = 1; wp < wallPortalCount; wp++)
                                {
                                    if (useLaterals[wp] < lowestLat)
                                    {
                                        portalIndex = wp;
                                        usePortal   = wallPortals[wp];
                                        lowestLat   = useLaterals[wp];
                                    }
                                }

                                wallPortals.RemoveAt(portalIndex);
                                useLaterals.RemoveAt(portalIndex);
                                wallPortalCount--;

                                Vector3 vl0 = v0 + (-wallNormal + wallDirection) * wallThickness;
                                Vector3 vl1 = v1 + (-wallNormal - wallDirection) * wallThickness;

                                Vector3 portalCenter     = Vector3.Lerp(vl0, vl1, lowestLat);
                                Vector3 portalHalfvector = wallDirection * (usePortal.width * 0.5f);
                                Vector3 portalBase       = Vector3.up * (volume.floorHeight - usePortal.height) * usePortal.verticalPosition;
                                Vector3 portalUp         = portalBase + Vector3.up * usePortal.height;
                                Vector3 portalStart      = portalCenter - portalHalfvector;
                                Vector3 portalEnd        = portalCenter + portalHalfvector;

                                Vector2 initalWallUVMin = new Vector2(Vector3.Dot(portalStart, wallDirection), 0);
                                Vector2 initalWallUVMax = new Vector2(Vector3.Dot(wallStart, wallDirection), wallUp);
                                mesh.AddPlane(portalStart, wallStart, portalStart + wallUpV, wallStart + wallUpV, initalWallUVMin, initalWallUVMax, wallNormal, wallTangent, wallSubmesh, wallSurface);//initial wall
                                if (generateColliders)
                                {
                                    collider.AddPlane(portalStart, wallStart, portalStart + wallUpV, wallStart + wallUpV);
                                }
                                if (usePortal.verticalPosition > 0)
                                {
                                    Vector2 portalBaseUVMin = new Vector2(Vector3.Dot(portalEnd, wallDirection), 0);
                                    Vector2 portalBaseUVMax = new Vector2(Vector3.Dot(portalStart, wallDirection), portalBase.y);
                                    mesh.AddPlane(portalEnd, portalStart, portalEnd + portalBase, portalStart + portalBase, portalBaseUVMin, portalBaseUVMax, wallNormal, wallTangent, wallSubmesh, wallSurface);//bottom
                                    if (generateColliders)
                                    {
                                        collider.AddPlane(portalEnd, portalStart, portalEnd + portalBase, portalStart + portalBase);
                                    }
                                }
                                if (usePortal.verticalPosition < 1)
                                {
                                    Vector2 portalBaseUVMin = new Vector2(Vector3.Dot(portalEnd, wallDirection), portalUp.y);
                                    Vector2 portalBaseUVMax = new Vector2(Vector3.Dot(portalStart, wallDirection), wallUp);
                                    mesh.AddPlane(portalEnd + portalUp, portalStart + portalUp, portalEnd + wallUpV, portalStart + wallUpV, portalBaseUVMin, portalBaseUVMax, wallNormal, wallTangent, wallSubmesh, wallSurface);//top
                                    if (generateColliders)
                                    {
                                        collider.AddPlane(portalEnd + portalUp, portalStart + portalUp, portalEnd + wallUpV, portalStart + wallUpV);
                                    }
                                }

                                if (hasPortals[portalIndex])//only do this once - from the room it's attached to
                                {
                                    //portal interior frame
                                    Vector3 portalDepth = wallNormal * wallThickness * 2;

                                    //sides
                                    mesh.AddPlane(portalStart + portalDepth + portalBase, portalStart + portalBase, portalStart + portalDepth + portalUp, portalStart + portalUp, wallDirection, wallNormalTangentReverse, wallSubmesh);
                                    mesh.AddPlane(portalEnd + portalBase, portalEnd + portalDepth + portalBase, portalEnd + portalUp, portalEnd + portalDepth + portalUp, -wallDirection, wallNormalTangent, wallSubmesh);

                                    if (generateMeshColliders)
                                    {
                                        collider.AddPlane(portalStart + portalDepth + portalBase, portalStart + portalBase, portalStart + portalDepth + portalUp, portalStart + portalUp);
                                        collider.AddPlane(portalEnd + portalBase, portalEnd + portalDepth + portalBase, portalEnd + portalUp, portalEnd + portalDepth + portalUp);
                                    }

                                    //floor
                                    Vector2 minFloorUv = new Vector2((portalEnd + portalBase).z, (portalEnd + portalBase).x);
                                    Vector2 maxFloorUv = minFloorUv + new Vector2(wallThickness, usePortal.width);
                                    mesh.AddPlane(portalStart + portalBase, portalStart + portalDepth + portalBase, portalEnd + portalBase, portalEnd + portalDepth + portalBase, minFloorUv, maxFloorUv, Vector3.up, wallTangent, floorSubmesh, floorSurface);
                                    if (generateMeshColliders)
                                    {
                                        collider.AddPlane(portalStart + portalBase, portalStart + portalDepth + portalBase, portalEnd + portalBase, portalEnd + portalDepth + portalBase);
                                    }

                                    //ceiling
                                    mesh.AddPlane(portalEnd + portalUp, portalEnd + portalDepth + portalUp, portalStart + portalUp, portalStart + portalDepth + portalUp, Vector3.down, wallTangent, wallSubmesh);
                                    if (generateMeshColliders)
                                    {
                                        collider.AddPlane(portalEnd + portalUp, portalEnd + portalDepth + portalUp, portalStart + portalUp, portalStart + portalDepth + portalUp);
                                    }
                                }

                                wallStart = portalEnd;//move the start for the next calculation
                            }

                            Vector2 finalWallUVMin = new Vector2(Vector3.Dot(vOffset1, wallDirection), 0);
                            Vector2 finalWallUVMax = new Vector2(Vector3.Dot(wallStart, wallDirection), wallUp);
                            mesh.AddPlane(vOffset1, wallStart, vOffset1 + wallUpV, wallStart + wallUpV, finalWallUVMin, finalWallUVMax, wallNormal, wallTangent, wallSubmesh, wallSurface);//final wall section
                            if (generateColliders)
                            {
                                collider.AddPlane(vOffset1, wallStart, vOffset1 + wallUpV, wallStart + wallUpV);
                            }
                        }
                        offsetPointBase += 1;
                    }
                    else//external anchored wall
                    {
                        int    facadeIndex  = wall.facadeIndex;
                        Facade facadeDesign = volume.GetFacade(facadeIndex);
                        int    currentFacadeWallSectionLength = externalWallAnchors[facadeIndex].Count - 1;
                        int    currentWallSectionIndex        = wall.offsetPointWallSection[0];
                        int    wallOffsetPoints = wall.offsetPoints.Length;
                        for (int w = 0; w < wallOffsetPoints - 1; w++)
                        {
                            int     roomPointIndex   = offsetPointBase + w;
                            Vector2 baseA            = offsetRoomAnchorPoints[roomPointIndex];
                            int     offsetIndexB     = (roomPointIndex + 1) % offsetRoomAnchorPoints.Length;
                            Vector2 baseB            = offsetRoomAnchorPoints[offsetIndexB];
                            Vector3 v0               = new Vector3(baseA.x, 0, baseA.y) + floorBaseV;
                            Vector3 v1               = new Vector3(baseB.x, 0, baseB.y) + floorBaseV;
                            int     wallSectionIndex = wall.offsetPointWallSection[w];

                            bool canGenerateWallSection = facadeDesign != null;

                            Vector3 wallVector = v0 - v1;
                            Vector3 wallDir    = wallVector.normalized;
                            float   wallLength = wallVector.magnitude;

                            if (!canGenerateWallSection)
                            {
                                if (wallSurface != null)
                                {
                                    submeshLibrary.Add(wallSurface);
                                }

                                Vector3 v2 = v1 + wallUpV;
                                Vector3 v3 = v0 + wallUpV;

                                Vector2 minUV       = Vector2.zero;
                                Vector2 maxUV       = new Vector2(Vector2.Distance(baseA, baseB), wallUp);
                                Vector3 wallNormal  = Vector3.Cross(Vector3.up, wallDir);
                                Vector4 wallTangent = BuildRMesh.CalculateTangent(wallDir);
                                mesh.AddPlane(v1, v0, v2, v3, minUV, maxUV, wallNormal, wallTangent, wallSubmesh, wallSurface);

                                if (generateMeshColliders)
                                {
                                    collider.AddPlane(v1, v0, v2, v3);
                                }
                            }
                            else
                            {
                                WallSection section = facadeDesign.GetWallSection(wallSectionIndex, volumeFloor, currentFacadeWallSectionLength, volume.floors);
                                if (section.model != null)
                                {
                                    continue;//cannot account for custom meshes assume custom mesh does include interior mesh or if does - will be generated with the exterior
                                }
                                GenerationOutput generatedSection = GenerationOutput.CreateRawOutput();
                                Vector2          wallSectionSize  = new Vector2(wallLength, wallUp + wallThickness);
                                bool             cullOpening      = building.cullDoors && section.isDoor;
                                SubmeshLibrary   sectionLib       = new SubmeshLibrary();

                                if (wallSurface != null)
                                {
                                    sectionLib.Add(wallSurface);//add interior wall surface
                                    submeshLibrary.Add(wallSurface);
                                }

                                sectionLib.Add(section.openingSurface);//add windows - the only surface we'll use in the interior room
                                submeshLibrary.Add(section.openingSurface);

                                float offset = 0;
                                if (w == 0)
                                {
                                    offset = wallThickness;
                                }
                                if (w == wallOffsetPoints - 2)
                                {
                                    offset = -wallThickness;
                                }
                                WallSectionGenerator.Generate(section, generatedSection, wallSectionSize, true, wallThickness, cullOpening, null, sectionLib, offset);
                                int[]   mapping     = submeshLibrary.MapSubmeshes(generatedSection.raw.materials);
                                Vector3 curveNormal = Vector3.Cross(wallDir, Vector3.up);

                                Quaternion meshRot = Quaternion.LookRotation(curveNormal, Vector3.up);
                                Vector3    meshPos = new Vector3(v1.x, volume.baseHeight, v1.z) + wallDir * wallSectionSize.x + Vector3.up * wallSectionSize.y;
                                meshPos += meshRot * -new Vector3(wallSectionSize.x, wallSectionSize.y, 0) * 0.5f;
                                mesh.AddData(generatedSection.raw, mapping, meshPos, meshRot, Vector3.one);
                            }


                            currentWallSectionIndex++;
                            if (currentWallSectionIndex >= currentFacadeWallSectionLength)
                            {
                                //reached the end of the facade - move to the next one and continue
                                currentFacadeWallSectionLength = externalWallAnchors[facadeIndex].Count;
                                currentWallSectionIndex        = 0;
                            }
                        }

                        offsetPointBase += wallPointCount - 1;
                    }
                }

                //FLOOR
                Vector2[]   mainShape      = offsetRoomAnchorPoints;
                Vector2[][] floorCutPoints = floorCuts.ToArray();
                int         floorVertCount = mainShape.Length;
                for (int flc = 0; flc < floorCutPoints.Length; flc++)
                {
                    floorVertCount += floorCutPoints[flc].Length;
                }

                Vector2[] allFloorPoints  = new Vector2[floorVertCount];
                int       mainShapeLength = mainShape.Length;
                for (int ms = 0; ms < mainShapeLength; ms++)
                {
                    allFloorPoints[ms] = mainShape[ms];
                }
                int cutPointIterator = mainShapeLength;
                for (int flc = 0; flc < floorCutPoints.Length; flc++)
                {
                    for (int flcp = 0; flcp < floorCutPoints[flc].Length; flcp++)
                    {
                        allFloorPoints[cutPointIterator] = floorCutPoints[flc][flcp];
                        cutPointIterator++;
                    }
                }

                Vector3[] floorPoints   = new Vector3[floorVertCount];
                Vector2[] floorUvs      = new Vector2[floorVertCount];
                Vector3[] floorNorms    = new Vector3[floorVertCount];
                Vector4[] floorTangents = new Vector4[floorVertCount];
                for (int rp = 0; rp < floorVertCount; rp++)
                {
                    floorPoints[rp] = new Vector3(allFloorPoints[rp].x, 0, allFloorPoints[rp].y) + floorBaseV;
                    Vector2 uv = allFloorPoints[rp];
                    if (floorSurface != null)
                    {
                        uv = floorSurface.CalculateUV(uv);
                    }
                    floorUvs[rp]      = uv;
                    floorNorms[rp]    = Vector3.up;
                    floorTangents[rp] = tangent;
                }

                int[] tris = Poly2TriWrapper.Triangulate(mainShape, true, floorCutPoints);

                mesh.AddData(floorPoints, floorUvs, tris, floorNorms, floorTangents, floorSubmesh);
                if (generateColliders)
                {
                    collider.mesh.AddData(floorPoints, floorUvs, tris, floorNorms, floorTangents, 0);
                }

                //CEILING!
                Vector2[][] ceilingCutPoints = ceilingCuts.ToArray();
                int         ceilingVertCount = mainShape.Length;
                for (int flc = 0; flc < ceilingCutPoints.Length; flc++)
                {
                    ceilingVertCount += ceilingCutPoints[flc].Length;
                }

                Vector2[] allCeilingPoints = new Vector2[ceilingVertCount];
                for (int ms = 0; ms < mainShapeLength; ms++)
                {
                    allCeilingPoints[ms] = mainShape[ms];
                }
                cutPointIterator = mainShapeLength;
                for (int flc = 0; flc < ceilingCutPoints.Length; flc++)
                {
                    for (int flcp = 0; flcp < ceilingCutPoints[flc].Length; flcp++)
                    {
                        allCeilingPoints[cutPointIterator] = ceilingCutPoints[flc][flcp];
                        cutPointIterator++;
                    }
                }

                Vector3[] ceilingPoints   = new Vector3[ceilingVertCount];
                Vector2[] ceilingUvs      = new Vector2[ceilingVertCount];
                Vector3[] ceilingNorms    = new Vector3[ceilingVertCount];
                Vector4[] ceilingTangents = new Vector4[ceilingVertCount];
                for (int rp = 0; rp < ceilingVertCount; rp++)
                {
                    ceilingPoints[rp] = new Vector3(allCeilingPoints[rp].x, wallUp, allCeilingPoints[rp].y) + floorBaseV;
                    Vector2 uv = allCeilingPoints[rp];
                    if (floorSurface != null)
                    {
                        uv = ceilingSurface.CalculateUV(uv);
                    }
                    ceilingUvs[rp]      = uv;
                    ceilingNorms[rp]    = Vector3.down;
                    ceilingTangents[rp] = tangent;
                }

                tris = Poly2TriWrapper.Triangulate(mainShape, false, ceilingCutPoints);
                mesh.AddData(ceilingPoints, ceilingUvs, tris, ceilingNorms, ceilingTangents, ceilingSubmesh);
                if (generateColliders)
                {
                    collider.mesh.AddData(ceilingPoints, ceilingUvs, tris, ceilingNorms, ceilingTangents, 0);
                }

                for (int ob = 0; ob < openingCount; ob++)
                {
                    VerticalOpening opening      = openings[ob];
                    int             openingIndex = Array.IndexOf(openings, opening);
                    Vector3         basePosition = openingBounds[openingIndex].center;
                    basePosition.z = basePosition.y;
                    basePosition.y = volume.baseHeight;

                    if (roomOpenings.Contains(opening))//opening used in this floorplan
                    {
                        int externalWallSubmesh = wallSubmesh != -1 ? wallSubmesh : -1;
                        switch (opening.usage)
                        {
                        case VerticalOpening.Usages.Space:
                            if (ceilingCutPoints.Length <= ob)
                            {
                                continue;
                            }
                            Vector3   ceilingCutUpV = Vector3.up * wallThickness;
                            Vector2[] ceilingCut    = ceilingCutPoints[ob];
                            int       custSize      = ceilingCut.Length;
                            for (int cp = 0; cp < custSize; cp++)
                            {
                                int     indexA = (cp + 1) % custSize;
                                int     indexB = cp;
                                Vector3 cp0    = new Vector3(ceilingCut[indexA].x, wallUp, ceilingCut[indexA].y) + floorBaseV;
                                Vector3 cp1    = new Vector3(ceilingCut[indexB].x, wallUp, ceilingCut[indexB].y) + floorBaseV;
                                Vector3 cp2    = cp0 + ceilingCutUpV;
                                Vector3 cp3    = cp1 + ceilingCutUpV;
                                mesh.AddPlane(cp0, cp1, cp2, cp3, ceilingSubmesh);
                                if (generateColliders)
                                {
                                    collider.AddPlane(cp0, cp1, cp2, cp3);
                                }
                            }
                            break;

                        case VerticalOpening.Usages.Stairwell:
                            StaircaseGenerator.Generate(mesh, opening, basePosition, volume.floorHeight, actualFloor, externalWallSubmesh, sendCollider);
                            if (volumeFloor == volume.floors - 1 && opening.baseFloor + opening.floors > building.VolumeBaseFloor(volume) + volume.floors - 1 && volume.abovePlanCount == 0)
                            {
                                StaircaseGenerator.GenerateRoofAccess(mesh, opening, basePosition, volume.floorHeight, actualFloor, externalWallSubmesh, sendCollider);
                            }
                            break;

                        case VerticalOpening.Usages.Elevator:
                            ElevatorShaftGenerator.Generate(ref mesh, opening, actualFloor, basePosition, volume.floorHeight, externalWallSubmesh, sendCollider);
                            break;
                        }
                    }
                }
            }

            for (int ob = 0; ob < openingCount; ob++)
            {
                Vector2[] openingShape = openingShapes[ob];
                if (openingShape == null)
                {
                    continue;                      //opening not used by this floorplan
                }
                if (openingUsedInThisFloor[ob])
                {
                    continue;                            //opening already generated
                }
                //seal this opening from the void
                VerticalOpening opening      = openings[ob];
                int             openingIndex = Array.IndexOf(openings, opening);
                Vector3         basePosition = openingBounds[openingIndex].center;
                basePosition.z = basePosition.y;
                basePosition.y = 0;

                int       cutSize            = openingShape.Length;
                Vector3   sealingWallUpV     = Vector3.up * volume.floorHeight;
                int       sealWallSubmesh    = submeshLibrary.SubmeshAdd(opening.surfaceB);
                Vector2[] offsetOpeningShape = QuickPolyOffset.Execute(openingShape, wallThickness);
                for (int cp = 0; cp < cutSize; cp++)
                {
                    int     indexA = (cp + 1) % cutSize;
                    int     indexB = cp;
                    Vector2 p0     = opening.usage == VerticalOpening.Usages.Space ? openingShape[indexA] : offsetOpeningShape[indexA];
                    Vector2 p1     = opening.usage == VerticalOpening.Usages.Space ? openingShape[indexB] : offsetOpeningShape[indexB];
                    Vector3 cp0    = new Vector3(p0.x, 0, p0.y) + floorBaseV;
                    Vector3 cp1    = new Vector3(p1.x, 0, p1.y) + floorBaseV;
                    Vector3 cp2    = cp0 + sealingWallUpV;
                    Vector3 cp3    = cp1 + sealingWallUpV;
                    mesh.AddPlane(cp0, cp1, cp2, cp3, sealWallSubmesh);
                    if (generateColliders)
                    {
                        collider.AddPlane(cp0, cp1, cp2, cp3);
                    }
                }

                switch (opening.usage)
                {
                case VerticalOpening.Usages.Space:
                    //nothing to implement
                    break;

                case VerticalOpening.Usages.Stairwell:
                    //need stairs to connect used floors
                    StaircaseGenerator.GenerateStairs(mesh, opening, basePosition, volume.floorHeight, actualFloor, -1, sendCollider);
                    if (volumeFloor == volume.floors - 1)
                    {
                        StaircaseGenerator.GenerateRoofAccess(mesh, opening, basePosition, volume.floorHeight, actualFloor, -1, sendCollider);
                    }
                    break;

                case VerticalOpening.Usages.Elevator:
                    //nothing to implement
                    break;
                }
            }
        }
Beispiel #2
0
        public static void GenerateFacade(FacadeData data, BuildRMesh dmesh, BuildRCollider collider = null)
        {
//		    Debug.Log("******************* "+data.facadeDesign.ToString());
            Vector3 facadeVector = data.baseB - data.baseA;

            if (facadeVector.magnitude < Mathf.Epsilon)
            {
                return;
            }
            Vector3   facadeDirection = facadeVector.normalized;
            Vector3   facadeNormal    = Vector3.Cross(facadeDirection, Vector3.up);
            Vector4   facadeTangent   = BuildRMesh.CalculateTangent(facadeDirection);
            RandomGen rGen            = new RandomGen();

            rGen.GenerateNewSeed();
            float                 wallThickness = data.wallThickness;
            float                 foundation    = data.foundationDepth;
            BuildingMeshTypes     meshType      = data.meshType;
            BuildingColliderTypes colliderType  = data.colliderType;
            int     wallSections = 0;
            Vector2 wallSectionSize;
            float   facadeLength = 0;

            if (data.isStraight)
            {
                facadeLength = facadeVector.magnitude;
                wallSections = Mathf.FloorToInt(facadeLength / data.minimumWallUnitLength);
                if (wallSections < 1)
                {
                    wallSections = 1;
                }
                wallSectionSize = new Vector2(facadeLength / wallSections, data.floorHeight);
            }
            else
            {
                wallSections = data.anchors.Count - 1;
                if (wallSections < 1)
                {
                    wallSections = 1;
                }
                float sectionWidth = Vector2.Distance(data.anchors[0].vector2, data.anchors[1].vector2);
                wallSectionSize = new Vector2(sectionWidth, data.floorHeight);
            }

            Dictionary <WallSection, RawMeshData>           generatedSections                  = new Dictionary <WallSection, RawMeshData>();
            Dictionary <WallSection, RawMeshData>           generatedSectionMeshColliders      = new Dictionary <WallSection, RawMeshData>();
            Dictionary <WallSection, BuildRCollider.BBox[]> generatedSectionPrimitiveColliders = new Dictionary <WallSection, BuildRCollider.BBox[]>();

            int startFloor = data.startFloor;

//		    Debug.Log("st fl "+startFloor);
//		    Debug.Log("fl ct "+ data.floorCount);
            for (int fl = startFloor; fl < data.floorCount; fl++)
            {
//			    Debug.Log(fl);
                if (data.facadeDesign.randomisationMode == Facade.RandomisationModes.RandomRows)
                {
                    generatedSections.Clear();                                                                             //recalculate each row
                }
//			    Debug.Log(wallSections);
                for (int s = 0; s < wallSections; s++)
                {
//				    Debug.Log(s);
                    WallSection section = data.facadeDesign.GetWallSection(s, fl + data.actualStartFloor, wallSections, data.floorCount);
//				    Debug.Log(section);
                    dmesh.submeshLibrary.Add(section);                    //add the wallsection to the main submesh library
                    RawMeshData generatedSection         = null;
                    RawMeshData generatedSectionCollider = null;

                    BuildRCollider.BBox[] bboxes = new BuildRCollider.BBox[0];

                    if (section == null)
                    {
                        GenerationOutput output         = GenerationOutput.CreateRawOutput();
                        GenerationOutput outputCollider = null;
                        if (colliderType == BuildingColliderTypes.Complex)
                        {
                            outputCollider = GenerationOutput.CreateRawOutput();
                        }
                        if (colliderType == BuildingColliderTypes.Primitive)
                        {
                            BuildRCollider.BBox[] bbox = WallSectionGenerator.Generate(section, wallSectionSize, wallThickness);
                            generatedSectionPrimitiveColliders.Add(section, bbox);
                        }
                        WallSectionGenerator.Generate(section, output, wallSectionSize, false, wallThickness, true, outputCollider, dmesh.submeshLibrary);

                        generatedSection = output.raw;
                        if (outputCollider != null)
                        {
                            generatedSectionCollider = outputCollider.raw;
                        }
                    }
                    else
                    {
                        if (generatedSections.ContainsKey(section))
                        {
                            generatedSection = generatedSections[section];
                            if (generatedSectionMeshColliders.ContainsKey(section))
                            {
                                generatedSectionCollider = generatedSectionMeshColliders[section];
                            }
                        }
                        else
                        {
                            GenerationOutput output         = GenerationOutput.CreateRawOutput();
                            GenerationOutput outputCollider = null;
                            bool             cullOpening    = data.cullDoors && section.isDoor;
                            if (colliderType == BuildingColliderTypes.Complex)
                            {
                                outputCollider = GenerationOutput.CreateRawOutput();
                            }
                            if (colliderType == BuildingColliderTypes.Primitive)
                            {
                                BuildRCollider.BBox[] bbox = WallSectionGenerator.Generate(section, wallSectionSize, wallThickness, cullOpening);
                                generatedSectionPrimitiveColliders.Add(section, bbox);
                            }
                            WallSectionGenerator.Generate(section, output, wallSectionSize, false, wallThickness, cullOpening, outputCollider, dmesh.submeshLibrary);

                            generatedSections.Add(section, output.raw);
                            if (generatedSectionCollider != null)
                            {
                                generatedSectionMeshColliders.Add(section, outputCollider.raw);
                            }

                            generatedSection = output.raw;
                            if (generatedSectionCollider != null)
                            {
                                generatedSectionCollider = outputCollider.raw;
                            }
                        }

                        if (generatedSectionPrimitiveColliders.ContainsKey(section))
                        {
                            bboxes = generatedSectionPrimitiveColliders[section];
                        }
                    }

//				    Debug.Log("data strt" + data.isStraight);
                    if (data.isStraight)
                    {
                        Quaternion meshRot           = Quaternion.LookRotation(facadeNormal, Vector3.up);
                        Vector3    baseMeshPos       = data.baseA + facadeDirection * wallSectionSize.x + Vector3.up * wallSectionSize.y;
                        Vector3    wallSectionVector = new Vector3(wallSectionSize.x * s, wallSectionSize.y * fl, 0);
                        baseMeshPos += meshRot * wallSectionVector;
                        Vector3 meshPos = baseMeshPos + meshRot * -wallSectionSize * 0.5f;

                        Vector2 uvOffset       = new Vector2(wallSectionSize.x * s, wallSectionSize.y * fl);
                        Vector2 uvOffsetScaled = uvOffset;
                        if (section != null && section.wallSurface != null)
                        {
                            uvOffsetScaled = CalculateUv(uvOffsetScaled, section.wallSurface);
                        }

                        //TODO account for the mesh mode of the wall section - custom meshes
                        if (meshType == BuildingMeshTypes.Full)
                        {
                            dmesh.AddData(generatedSection, meshPos, meshRot, Vector3.one, uvOffsetScaled);
                        }
                        if (collider != null && generatedSectionCollider != null)
                        {
                            collider.mesh.AddData(generatedSectionCollider, meshPos, meshRot, Vector3.one);
                        }
                        if (collider != null && bboxes.Length > 0)
                        {
                            collider.AddBBox(bboxes, meshPos, meshRot);
                        }

//					    Debug.Log("foundation");
                        if (fl == 0 && foundation > Mathf.Epsilon)
                        {
                            Vector3 fp3 = baseMeshPos + Vector3.down * wallSectionSize.y;
                            Vector3 fp2 = fp3 - facadeDirection * wallSectionSize.x;
                            Vector3 fp0 = fp2 + Vector3.down * foundation;
                            Vector3 fp1 = fp3 + Vector3.down * foundation;

                            if (meshType == BuildingMeshTypes.Full)
                            {
                                Surface foundationSurface = data.foundationSurface != null ? data.foundationSurface : section.wallSurface;
                                int     foundationSubmesh = dmesh.submeshLibrary.SubmeshAdd(foundationSurface);                            //facadeSurfaces.IndexOf(section.wallSurface));
                                dmesh.AddPlane(fp0, fp1, fp2, fp3, new Vector2(uvOffset.x, -foundation), new Vector2(uvOffset.x + wallSectionSize.x, 0), -facadeNormal, facadeTangent, foundationSubmesh, foundationSurface);
                            }
                            if (collider != null && generatedSectionCollider != null)
                            {
                                collider.mesh.AddPlane(fp0, fp1, fp2, fp3, 0);
                            }
                        }
                    }
                    else
                    {
                        //todo switch - support wall section based curves for now

                        Vector3 cp0 = data.anchors[s].vector3XZ;
                        cp0.y = data.baseA.y;
                        Vector3 cp1 = data.anchors[s + 1].vector3XZ;
                        cp1.y = data.baseA.y;
                        Vector3 curveVector    = cp1 - cp0;
                        Vector3 curveDirection = curveVector.normalized;
                        Vector3 curveNormal    = Vector3.Cross(curveDirection, Vector3.up);
                        float   actualWidth    = curveVector.magnitude;

                        Quaternion meshRot           = Quaternion.LookRotation(curveNormal, Vector3.up);
                        Vector3    meshPos           = cp1 + Vector3.up * wallSectionSize.y;
                        Vector3    wallSectionVector = new Vector3(0, wallSectionSize.y * fl, 0);
                        meshPos += meshRot * wallSectionVector;
                        meshPos += meshRot * -new Vector3(actualWidth, wallSectionSize.y, 0) * 0.5f;
                        Vector3 meshScale = new Vector3(actualWidth / wallSectionSize.x, 1, 1);

                        //Thanks Anthony Cuellar - issue #12
                        Vector2 uvOffset       = new Vector2(wallSectionVector.x, wallSectionVector.y + (section.hasOpening ? 0 : wallSectionSize.y / 2f));
                        Vector2 uvOffsetScaled = CalculateUv(uvOffset, section.wallSurface);
                        //TODO account for the mesh mode of the wall section - custom meshes
                        if (meshType == BuildingMeshTypes.Full)
                        {
                            dmesh.AddData(generatedSection, meshPos, meshRot, meshScale, uvOffsetScaled);
                        }
                        if (collider != null && generatedSectionCollider != null)
                        {
                            collider.mesh.AddData(generatedSectionCollider, meshPos, meshRot, meshScale);
                        }
                        if (collider != null && bboxes.Length > 0)
                        {
                            collider.AddBBox(bboxes, meshPos, meshRot);
                        }

//					    Debug.Log("foundation");
                        if (fl == 0 && foundation > Mathf.Epsilon)
                        {
                            Vector3 fp3 = cp1;
                            Vector3 fp2 = fp3 - curveDirection * actualWidth;
                            Vector3 fp0 = fp2 + Vector3.down * foundation;
                            Vector3 fp1 = fp3 + Vector3.down * foundation;

                            if (meshType == BuildingMeshTypes.Full)
                            {
                                Surface foundationSurface = data.foundationSurface != null ? data.foundationSurface : section.wallSurface;
                                int     foundationSubmesh = dmesh.submeshLibrary.SubmeshAdd(foundationSurface);                            //facadeSurfaces.IndexOf(section.wallSurface);
                                dmesh.AddPlane(fp0, fp1, fp2, fp3, new Vector2(uvOffset.x, -foundation), new Vector2(uvOffset.x + actualWidth, 0), -curveNormal, facadeTangent, foundationSubmesh, foundationSurface);
                            }
                            if (collider != null && generatedSectionCollider != null)
                            {
                                collider.mesh.AddPlane(fp0, fp1, fp2, fp3, 0);
                            }
                        }
                    }
                }

                //string course is completely ignored for a collision
//			    Debug.Log("string");
                if (fl > 0 && data.facadeDesign.stringCourse && meshType == BuildingMeshTypes.Full)                //no string course on ground floor
                {
                    float   baseStringCoursePosition = wallSectionSize.y * fl + wallSectionSize.y * data.facadeDesign.stringCoursePosition;
                    Vector3 scBaseUp = baseStringCoursePosition * Vector3.up;
                    Vector3 scTopUp  = (data.facadeDesign.stringCourseHeight + baseStringCoursePosition) * Vector3.up;
                    if (data.isStraight)
                    {
                        Vector3 scNm    = data.facadeDesign.stringCourseDepth * facadeNormal;
                        Vector3 p0      = data.baseA;
                        Vector3 p1      = data.baseB;
                        Vector3 p0o     = data.baseA - scNm;
                        Vector3 p1o     = data.baseB - scNm;
                        int     submesh = dmesh.submeshLibrary.SubmeshAdd(data.facadeDesign.stringCourseSurface);                                                                                        //data.facadeDesign.stringCourseSurface != null ? facadeSurfaces.IndexOf(data.facadeDesign.stringCourseSurface) : 0;
                        Vector2 uvMax   = new Vector2(facadeLength, data.facadeDesign.stringCourseHeight);
                        dmesh.AddPlane(p0o + scBaseUp, p1o + scBaseUp, p0o + scTopUp, p1o + scTopUp, Vector3.zero, uvMax, -facadeNormal, facadeTangent, submesh, data.facadeDesign.stringCourseSurface); //front
                        dmesh.AddPlane(p0 + scBaseUp, p0o + scBaseUp, p0 + scTopUp, p0o + scTopUp, facadeNormal, facadeTangent, submesh);                                                                //left
                        dmesh.AddPlane(p1o + scBaseUp, p1 + scBaseUp, p1o + scTopUp, p1 + scTopUp, facadeNormal, facadeTangent, submesh);                                                                //right
                        float facadeAngle = BuildrUtils.CalculateFacadeAngle(facadeDirection);
                        dmesh.AddPlaneComplexUp(p0 + scBaseUp, p1 + scBaseUp, p0o + scBaseUp, p1o + scBaseUp, facadeAngle, Vector3.down, facadeTangent, submesh, data.facadeDesign.stringCourseSurface); //bottom
                        dmesh.AddPlaneComplexUp(p1 + scTopUp, p0 + scTopUp, p1o + scTopUp, p0o + scTopUp, facadeAngle, Vector3.up, facadeTangent, submesh, data.facadeDesign.stringCourseSurface);       //top
                    }
                    else
                    {
                        int       baseCurvePointCount = data.anchors.Count;                  //baseCurvepoints.Count;
                        Vector3[] interSectionNmls    = new Vector3[baseCurvePointCount];
                        for (int i = 0; i < baseCurvePointCount - 1; i++)
                        {
                            Vector3 p0 = data.anchors[i].vector3XZ;                            //baseCurvepoints[i];
                            Vector3 p1 = data.anchors[i + 1].vector3XZ;                        //baseCurvepoints[i + 1];
                            Vector3 p2 = data.anchors[Mathf.Max(i - 1, 0)].vector3XZ;          //baseCurvepoints[Mathf.Max(i - 1, 0)];
                            interSectionNmls[i] = Vector3.Cross((p1 - p0 + p0 - p2).normalized, Vector3.up);
                        }

                        for (int i = 0; i < baseCurvePointCount - 1; i++)
                        {
                            Vector3 p0            = data.anchors[i].vector3XZ;                 //baseCurvepoints[i];
                            Vector3 p1            = data.anchors[i + 1].vector3XZ;             //baseCurvepoints[i + 1];
                            Vector3 sectionVector = p1 - p0;
                            Vector3 sectionDir    = sectionVector.normalized;
                            Vector3 sectionNml    = Vector3.Cross(sectionDir, Vector3.up);
                            Vector4 sectionTgnt   = BuildRMesh.CalculateTangent(sectionDir);
                            Vector3 scNmA         = data.facadeDesign.stringCourseDepth * interSectionNmls[i + 0];
                            Vector3 scNmB         = data.facadeDesign.stringCourseDepth * interSectionNmls[i + 1];
                            Vector3 p0o           = p0 - scNmA;
                            Vector3 p1o           = p1 - scNmB;
                            int     submesh       = dmesh.submeshLibrary.SubmeshAdd(data.facadeDesign.stringCourseSurface);                  //data.facadeDesign.stringCourseSurface != null ? facadeSurfaces.IndexOf(data.facadeDesign.stringCourseSurface) : 0;
                            dmesh.AddPlane(p0o + scBaseUp, p1o + scBaseUp, p0o + scTopUp, p1o + scTopUp, sectionNml, sectionTgnt, submesh);
                            dmesh.AddPlane(p0 + scBaseUp, p0o + scBaseUp, p0 + scTopUp, p0o + scTopUp, sectionNml, sectionTgnt, submesh);
                            dmesh.AddPlane(p1o + scBaseUp, p1 + scBaseUp, p1o + scTopUp, p1 + scTopUp, sectionNml, sectionTgnt, submesh);
                            float facadeAngle = BuildrUtils.CalculateFacadeAngle(sectionDir);
                            dmesh.AddPlaneComplexUp(p0 + scBaseUp, p1 + scBaseUp, p0o + scBaseUp, p1o + scBaseUp, facadeAngle, Vector3.down, sectionTgnt, submesh, data.facadeDesign.stringCourseSurface);                      //bottom
                            dmesh.AddPlaneComplexUp(p1 + scTopUp, p0 + scTopUp, p1o + scTopUp, p0o + scTopUp, facadeAngle, Vector3.up, sectionTgnt, submesh, data.facadeDesign.stringCourseSurface);                            //top
                        }
                    }
                }
            }
        }
        //TODO support custom models coming in from roof design
        public static void Generate(ref BuildRMesh mesh, IVolume volume, List <Vector3[]> roofFaces)
        {
            Roof  design     = volume.roof;
            float roofDepth  = design.depth;
            float roofHeight = design.height;

            float dormerWidth  = design.dormerWidth;
            float dormerHeight = design.dormerHeight;
            int   dormerRows   = design.dormerRows;

            if (dormerHeight * dormerRows > roofHeight)
            {
                dormerHeight = roofHeight / dormerRows;
            }
            float dormerRoofHeight = design.dormerRoofHeight;
            float roofPitchRad     = Mathf.Atan2(roofHeight, roofDepth);
            float roofHyp          = Mathf.Sqrt(roofDepth * roofDepth + roofHeight * roofHeight);//todo make a proper calculation - this is incorrect
            float dormerDepth      = Mathf.Cos(roofPitchRad) * dormerHeight;
            float dormerHyp        = Mathf.Sqrt(dormerHeight * dormerHeight + dormerDepth * dormerDepth);
            float dormerRowSpace   = roofHyp / dormerRows;

            dormerHyp = Mathf.Min(dormerHyp, dormerRowSpace);
            float dormerSpace     = dormerRowSpace - dormerHyp;
            float dormerSpaceLerp = dormerSpace / roofHyp;

            if (INTERNAL_B_MESH == null)
            {
                INTERNAL_B_MESH = new BuildRMesh("internal dormer");
            }
            INTERNAL_B_MESH.Clear();

            INTERNAL_B_MESH.submeshLibrary.AddRange(mesh.submeshLibrary.MATERIALS.ToArray());

            Vector3 bpl = Vector3.left * dormerWidth * 0.5f;
            Vector3 bpr = Vector3.right * dormerWidth * 0.5f;
            Vector3 tpc = Vector3.up * dormerHeight;
            float   dormerFaceHeight = dormerHeight - dormerHeight * dormerRoofHeight;
            Vector3 tpl = bpl + Vector3.up * dormerFaceHeight;
            Vector3 tpr = bpr + Vector3.up * dormerFaceHeight;
            Vector3 rpc = tpc + Vector3.back * dormerDepth;
            Vector3 rpl = tpl + Vector3.back * dormerDepth;
            Vector3 rpr = tpr + Vector3.back * dormerDepth;

            Surface mainSurface = design.mainSurface;
            Surface wallSurface = design.wallSurface;
            int     mainSubmesh = mesh.submeshLibrary.SubmeshAdd(mainSurface);
            int     wallSubmesh = mesh.submeshLibrary.SubmeshAdd(wallSurface);

            Vector2 sectionSize = new Vector2(dormerWidth, dormerFaceHeight);

            if (design.wallSection && design.wallSection.CanRender(sectionSize))
            {
                //                mesh.submeshLibrary.Add(design.wallSection);
                mesh.submeshLibrary.Add(design.wallSection);

                GenerationOutput output = GenerationOutput.CreateRawOutput();
                WallSectionGenerator.Generate(design.wallSection, output, sectionSize, false, 0.02f, false, null, mesh.submeshLibrary);
                Vector3 sectionPos = new Vector3(0, dormerFaceHeight * 0.5f, 0);
                int[]   mapping    = new int[output.raw.materials.Count];
                for (int s = 0; s < output.raw.materials.Count; s++)
                {
                    mapping[s] = 0;
                }
                INTERNAL_B_MESH.AddDataKeepSubmeshStructure(output.raw, sectionPos, Quaternion.Euler(0, 180, 0), Vector3.one);
            }
            else
            {
                INTERNAL_B_MESH.AddPlane(bpr, bpl, tpr, tpl, wallSubmesh);//dormer front square
            }

            //front triangle

            INTERNAL_B_MESH.AddTri(tpl, tpr, tpc, Vector3.right, wallSubmesh);
            //roof
            Vector3 normalRoofRight  = Vector3.Cross((tpr - tpc).normalized, (rpc - tpc).normalized);
            Vector4 tangentRoofRight = BuildRMesh.CalculateTangent(Vector3.back);
            Vector3 normalRoofLeft   = Vector3.Cross((rpc - tpc).normalized, (tpl - tpc).normalized);
            Vector4 tangentRoofLeft  = BuildRMesh.CalculateTangent(Vector3.forward);
            Vector2 roofUvMax        = new Vector2(dormerDepth, Vector3.Distance(tpc, tpl));

            INTERNAL_B_MESH.AddPlane(rpr, tpr, rpc, tpc, Vector2.zero, roofUvMax, normalRoofRight, tangentRoofRight, mainSubmesh, mainSurface);
            INTERNAL_B_MESH.AddPlane(rpc, tpc, rpl, tpl, Vector2.zero, roofUvMax, normalRoofLeft, tangentRoofLeft, mainSubmesh, mainSurface);
            //side triangles
            INTERNAL_B_MESH.AddTri(bpr, rpr, tpr, Vector3.back, wallSubmesh);
            INTERNAL_B_MESH.AddTri(bpl, tpl, rpl, Vector3.back, wallSubmesh);

            RawMeshData data = RawMeshData.CopyBuildRMesh(INTERNAL_B_MESH);

            int roofFaceCount = roofFaces.Count;

            for (int r = 0; r < roofFaceCount; r++)
            {
                Vector3[] roofFace = roofFaces[r];
                Vector3   p0       = roofFace[0];
                Vector3   p1       = roofFace[1];
                Vector3   p2       = roofFace[2];
                Vector3   p3       = roofFace[3];

                //center line
                Vector3 pDB             = Vector3.Lerp(p0, p1, 0.5f);
                Vector3 facadeVector    = p1 - p0;
                Vector3 facadeDirection = facadeVector.normalized;
                Vector3 facadeNormal    = Vector3.Cross(Vector3.up, facadeDirection);

                Vector3 projTL = p0 + Vector3.Project(p2 - p0, facadeDirection);
                Vector3 projTR = p1 + Vector3.Project(p3 - p1, facadeDirection);

                float sqrMagP0 = Vector3.SqrMagnitude(p0 - pDB);
                float sqrMagP1 = Vector3.SqrMagnitude(p1 - pDB);
                float sqrMagP2 = Vector3.SqrMagnitude(projTL - pDB);
                float sqrMagP3 = Vector3.SqrMagnitude(projTR - pDB);

                Vector3 dormerBaseLeft  = sqrMagP0 < sqrMagP2 ? p0 : projTL;
                Vector3 dormerBaseRight = sqrMagP1 < sqrMagP3 ? p1 : projTR;

                Vector3 roofNormal = BuildRMesh.CalculateNormal(p0, p2, p1);
                Vector3 roofUp     = Vector3.Cross(roofNormal, -facadeDirection);
                float   actualHyp  = sqrMagP0 < sqrMagP2?Vector3.Distance(p0, p2 + Vector3.Project(p0 - p2, facadeDirection)) : Vector3.Distance(projTL, p2);

                Vector3 dormerTopLeft  = dormerBaseLeft + roofUp * actualHyp;
                Vector3 dormerTopRight = dormerBaseRight + roofUp * actualHyp;

                float topLength       = Vector3.Distance(dormerBaseLeft, dormerBaseRight);
                int   numberOfDormers = Mathf.FloorToInt((topLength - design.minimumDormerSpacing * 2) / (design.minimumDormerSpacing + dormerWidth));

                if (numberOfDormers == 0)
                {
                    if (topLength > sectionSize.x)
                    {
                        numberOfDormers = 1;
                    }
                }

                for (int dr = 0; dr < dormerRows; dr++)
                {
                    float rowPercent = dr / (dormerRows + 0f) + dormerSpaceLerp * 0.5f;
                    //row vector
                    Vector3 rl = Vector3.Lerp(dormerBaseLeft, dormerTopLeft, rowPercent);
                    Vector3 rr = Vector3.Lerp(dormerBaseRight, dormerTopRight, rowPercent);

                    for (int dc = 0; dc < numberOfDormers; dc++)
                    {
                        float   columnPercent = (dc + 1f) / (numberOfDormers + 1f);
                        Vector3 dormerBegin   = Vector3.Lerp(rl, rr, columnPercent);

                        Quaternion meshRot = Quaternion.LookRotation(facadeNormal, Vector3.up);
                        Vector3    meshPos = dormerBegin;
                        //TODO account for the mesh mode of the wall section - custom meshes
                        mesh.AddDataKeepSubmeshStructure(data, meshPos, meshRot, Vector3.one);
                    }
                }
            }
        }