コード例 #1
0
        public static void MakeCrater(MyVoxelBase voxelMap, BoundingSphereD sphere, Vector3 normal, MyVoxelMaterialDefinition material)
        {
            ProfilerShort.Begin("MakeCrater");

            Vector3I minCorner, maxCorner;

            {
                Vector3D sphereMin = sphere.Center - (sphere.Radius - MyVoxelConstants.VOXEL_SIZE_IN_METRES);
                Vector3D sphereMax = sphere.Center + (sphere.Radius + MyVoxelConstants.VOXEL_SIZE_IN_METRES);
                MyVoxelCoordSystems.WorldPositionToVoxelCoord(voxelMap.PositionLeftBottomCorner, ref sphereMin, out minCorner);
                MyVoxelCoordSystems.WorldPositionToVoxelCoord(voxelMap.PositionLeftBottomCorner, ref sphereMax, out maxCorner);
            }


            voxelMap.Storage.ClampVoxelCoord(ref minCorner);
            voxelMap.Storage.ClampVoxelCoord(ref maxCorner);

            //  We are tracking which voxels were changed, so we can invalidate only needed cells in the cache
            bool changed = false;

            ProfilerShort.Begin("Reading cache");
            m_cache.Resize(minCorner, maxCorner);
            voxelMap.Storage.ReadRange(m_cache, MyStorageDataTypeFlags.ContentAndMaterial, 0, ref minCorner, ref maxCorner);
            ProfilerShort.End();

            ProfilerShort.Begin("Changing cache");
            int      removedVoxelContent = 0;
            Vector3I tempVoxelCoord;
            Vector3I cachePos;

            for (tempVoxelCoord.Z = minCorner.Z, cachePos.Z = 0; tempVoxelCoord.Z <= maxCorner.Z; tempVoxelCoord.Z++, ++cachePos.Z)
            {
                for (tempVoxelCoord.Y = minCorner.Y, cachePos.Y = 0; tempVoxelCoord.Y <= maxCorner.Y; tempVoxelCoord.Y++, ++cachePos.Y)
                {
                    for (tempVoxelCoord.X = minCorner.X, cachePos.X = 0; tempVoxelCoord.X <= maxCorner.X; tempVoxelCoord.X++, ++cachePos.X)
                    {
                        Vector3D voxelPosition;
                        MyVoxelCoordSystems.VoxelCoordToWorldPosition(voxelMap.PositionLeftBottomCorner, ref tempVoxelCoord, out voxelPosition);

                        float addDist = (float)(voxelPosition - sphere.Center).Length();
                        float addDiff = (float)(addDist - sphere.Radius);

                        byte newContent;
                        if (addDiff > MyVoxelConstants.VOXEL_SIZE_IN_METRES_HALF)
                        {
                            newContent = MyVoxelConstants.VOXEL_CONTENT_EMPTY;
                        }
                        else if (addDiff < -MyVoxelConstants.VOXEL_SIZE_IN_METRES_HALF)
                        {
                            newContent = MyVoxelConstants.VOXEL_CONTENT_FULL;
                        }
                        else
                        {
                            //  This formula will work even if diff is positive or negative
                            newContent = (byte)(MyVoxelConstants.VOXEL_ISO_LEVEL - addDiff / MyVoxelConstants.VOXEL_SIZE_IN_METRES_HALF * MyVoxelConstants.VOXEL_ISO_LEVEL);
                        }

                        byte originalContent = m_cache.Content(ref cachePos);

                        if (newContent > originalContent && originalContent > 0)
                        {
                            if (material != null)
                            {
                                m_cache.Material(ref cachePos, material.Index);
                            }

                            changed = true;
                            m_cache.Content(ref cachePos, newContent);
                        }

                        float delDist = (float)(voxelPosition - (sphere.Center + (float)sphere.Radius * 0.7f * normal)).Length();
                        float delDiff = (float)(delDist - sphere.Radius);

                        byte contentToRemove;
                        if (delDiff > MyVoxelConstants.VOXEL_SIZE_IN_METRES_HALF)
                        {
                            contentToRemove = MyVoxelConstants.VOXEL_CONTENT_EMPTY;
                        }
                        else if (delDiff < -MyVoxelConstants.VOXEL_SIZE_IN_METRES_HALF)
                        {
                            contentToRemove = MyVoxelConstants.VOXEL_CONTENT_FULL;
                        }
                        else
                        {
                            //  This formula will work even if diff is positive or negative
                            contentToRemove = (byte)(MyVoxelConstants.VOXEL_ISO_LEVEL - delDiff / MyVoxelConstants.VOXEL_SIZE_IN_METRES_HALF * MyVoxelConstants.VOXEL_ISO_LEVEL);
                        }

                        originalContent = m_cache.Content(ref cachePos);

                        if (originalContent > MyVoxelConstants.VOXEL_CONTENT_EMPTY && contentToRemove > MyVoxelConstants.VOXEL_CONTENT_EMPTY)
                        {
                            changed = true;

                            int newVal = originalContent - contentToRemove;
                            if (newVal < MyVoxelConstants.VOXEL_CONTENT_EMPTY)
                            {
                                newVal = MyVoxelConstants.VOXEL_CONTENT_EMPTY;
                            }
                            m_cache.Content(ref cachePos, (byte)newVal);

                            removedVoxelContent += originalContent - newVal;
                        }

                        float setDist = (float)(voxelPosition - (sphere.Center - (float)sphere.Radius * 0.5f * normal)).Length();
                        float setDiff = (float)(setDist - sphere.Radius / 4f);

                        if (setDiff <= MyVoxelConstants.VOXEL_SIZE_IN_METRES * 1.5f)  // could be VOXEL_SIZE_IN_METRES_HALF, but we want to set material in empty cells correctly
                        {
                            byte indestructibleContentToSet = MyVoxelConstants.VOXEL_CONTENT_FULL;
                            if (setDiff >= MyVoxelConstants.VOXEL_SIZE_IN_METRES_HALF)  // outside
                            {
                                indestructibleContentToSet = MyVoxelConstants.VOXEL_CONTENT_EMPTY;
                            }
                            else if (setDiff >= -MyVoxelConstants.VOXEL_SIZE_IN_METRES_HALF)  // boundary
                            {
                                indestructibleContentToSet = (byte)(MyVoxelConstants.VOXEL_ISO_LEVEL - setDiff / MyVoxelConstants.VOXEL_SIZE_IN_METRES_HALF * MyVoxelConstants.VOXEL_ISO_LEVEL);
                            }

                            MyVoxelMaterialDefinition originalMaterial = MyDefinitionManager.Static.GetVoxelMaterialDefinition(m_cache.Material(ref cachePos));

                            // Change the material:
                            // - always on boundaries between material and nothing
                            // - smoothly on inner boundaries
                            MyVoxelMaterialDefinition newMaterial = material;
                            if (setDiff > 0)
                            {
                                byte content = m_cache.Content(ref cachePos);
                                if (content == MyVoxelConstants.VOXEL_CONTENT_FULL)
                                {
                                    newMaterial = originalMaterial;
                                }
                                if (setDiff >= MyVoxelConstants.VOXEL_SIZE_IN_METRES_HALF && content != MyVoxelConstants.VOXEL_CONTENT_EMPTY)  // set material behind boundary only for empty voxels
                                {
                                    newMaterial = originalMaterial;
                                }
                            }

                            if (originalMaterial == newMaterial)
                            {
                                continue;
                            }

                            m_cache.Material(ref cachePos, newMaterial.Index);
                            changed = true;
                        }

                        float dist = (float)(voxelPosition - sphere.Center).Length();
                        float diff = (float)(dist - sphere.Radius);

                        if (diff <= 0f)
                        {
                            originalContent = m_cache.Content(ref cachePos);
                            if (originalContent > MyVoxelConstants.VOXEL_CONTENT_EMPTY)
                            {
                                bool wrinkled = m_cache.WrinkleVoxelContent(ref cachePos, MyVoxelConstants.DEFAULT_WRINKLE_WEIGHT_ADD, MyVoxelConstants.DEFAULT_WRINKLE_WEIGHT_REMOVE);
                                if (wrinkled)
                                {
                                    changed = true;
                                }
                            }
                        }
                    }
                }
            }
            ProfilerShort.End();

            if (changed)
            {
                ProfilerShort.Begin("RemoveSmallVoxelsUsingChachedVoxels");
                RemoveSmallVoxelsUsingChachedVoxels();
                ProfilerShort.BeginNextBlock("Writing cache");
                voxelMap.Storage.WriteRange(m_cache, MyStorageDataTypeFlags.ContentAndMaterial, ref minCorner, ref maxCorner);
                ProfilerShort.End();
            }

            ProfilerShort.End();
        }
コード例 #2
0
        public static void MakeCrater(MyVoxelBase voxelMap, BoundingSphereD sphere, Vector3 direction, MyVoxelMaterialDefinition material)
        {
            ProfilerShort.Begin("MakeCrater");

            Vector3 normal = Vector3.Normalize(sphere.Center - voxelMap.RootVoxel.WorldMatrix.Translation);

            Vector3I minCorner, maxCorner;

            {
                Vector3D sphereMin = sphere.Center - (sphere.Radius - MyVoxelConstants.VOXEL_SIZE_IN_METRES) * 1.3f;
                Vector3D sphereMax = sphere.Center + (sphere.Radius + MyVoxelConstants.VOXEL_SIZE_IN_METRES) * 1.3f;
                MyVoxelCoordSystems.WorldPositionToVoxelCoord(voxelMap.PositionLeftBottomCorner, ref sphereMin, out minCorner);
                MyVoxelCoordSystems.WorldPositionToVoxelCoord(voxelMap.PositionLeftBottomCorner, ref sphereMax, out maxCorner);
            }

            voxelMap.Storage.ClampVoxelCoord(ref minCorner);
            voxelMap.Storage.ClampVoxelCoord(ref maxCorner);

            Vector3I worldMinCorner = minCorner + voxelMap.StorageMin;
            Vector3I worldMaxCorner = maxCorner + voxelMap.StorageMin;

            //  We are tracking which voxels were changed, so we can invalidate only needed cells in the cache
            bool changed = false;

            ProfilerShort.Begin("Reading cache");
            m_cache.Resize(minCorner, maxCorner);

            voxelMap.Storage.ReadRange(m_cache, MyStorageDataTypeFlags.ContentAndMaterial, 0, ref worldMinCorner, ref worldMaxCorner);

            ProfilerShort.End();

            ProfilerShort.Begin("Changing cache");
            int      removedVoxelContent = 0;
            Vector3I tempVoxelCoord;
            Vector3I cachePos = (maxCorner - minCorner) / 2;

            byte oldMaterial = m_cache.Material(ref cachePos);

            float digRatio = 1 - Vector3.Dot(normal, direction);

            Vector3 newCenter = sphere.Center - normal * (float)sphere.Radius * 1.1f;//0.9f;
            float   sphRadA   = (float)(sphere.Radius * 1.5f);
            float   sphRadSqA = (float)(sphRadA * sphRadA);
            float   voxelSizeHalfTransformedPosA = MyVoxelConstants.VOXEL_SIZE_IN_METRES_HALF * (2 * sphRadA + MyVoxelConstants.VOXEL_SIZE_IN_METRES_HALF);
            float   voxelSizeHalfTransformedNegA = MyVoxelConstants.VOXEL_SIZE_IN_METRES_HALF * (-2 * sphRadA + MyVoxelConstants.VOXEL_SIZE_IN_METRES_HALF);

            Vector3 newDelCenter = newCenter + normal * (float)sphere.Radius * (0.7f + digRatio) + direction * (float)sphere.Radius * 0.65f;
            float   sphRadD      = (float)(sphere.Radius);
            float   sphRadSqD    = (float)(sphRadD * sphRadD);
            float   voxelSizeHalfTransformedPosD = MyVoxelConstants.VOXEL_SIZE_IN_METRES_HALF * (2 * sphRadD + MyVoxelConstants.VOXEL_SIZE_IN_METRES_HALF);
            float   voxelSizeHalfTransformedNegD = MyVoxelConstants.VOXEL_SIZE_IN_METRES_HALF * (-2 * sphRadD + MyVoxelConstants.VOXEL_SIZE_IN_METRES_HALF);

            Vector3 newSetCenter = newCenter + normal * (float)sphere.Radius * (digRatio) + direction * (float)sphere.Radius * 0.3f;
            float   sphRadS      = (float)(sphere.Radius * 0.1f);
            float   sphRadSqS    = (float)(sphRadS * sphRadS);
            float   voxelSizeHalfTransformedPosS = MyVoxelConstants.VOXEL_SIZE_IN_METRES_HALF * (2 * sphRadS + MyVoxelConstants.VOXEL_SIZE_IN_METRES_HALF);

            for (tempVoxelCoord.Z = minCorner.Z, cachePos.Z = 0; tempVoxelCoord.Z <= maxCorner.Z; tempVoxelCoord.Z++, ++cachePos.Z)
            {
                for (tempVoxelCoord.Y = minCorner.Y, cachePos.Y = 0; tempVoxelCoord.Y <= maxCorner.Y; tempVoxelCoord.Y++, ++cachePos.Y)
                {
                    for (tempVoxelCoord.X = minCorner.X, cachePos.X = 0; tempVoxelCoord.X <= maxCorner.X; tempVoxelCoord.X++, ++cachePos.X)
                    {
                        Vector3D voxelPosition;
                        MyVoxelCoordSystems.VoxelCoordToWorldPosition(voxelMap.PositionLeftBottomCorner, ref tempVoxelCoord, out voxelPosition);

                        byte originalContent = m_cache.Content(ref cachePos);

                        //Add sphere
                        if (originalContent != MyVoxelConstants.VOXEL_CONTENT_FULL)
                        {
                            float addDist = (float)(voxelPosition - newCenter).LengthSquared();
                            float addDiff = (float)(addDist - sphRadSqA);

                            byte newContent;
                            if (addDiff > voxelSizeHalfTransformedPosA)
                            {
                                newContent = MyVoxelConstants.VOXEL_CONTENT_EMPTY;
                            }
                            else if (addDiff < voxelSizeHalfTransformedNegA)
                            {
                                newContent = MyVoxelConstants.VOXEL_CONTENT_FULL;
                            }
                            else
                            {
                                float value = (float)Math.Sqrt(addDist + sphRadSqA - 2 * sphRadA * Math.Sqrt(addDist));
                                if (addDiff < 0)
                                {
                                    value = -value;
                                }
                                //  This formula will work even if diff is positive or negative
                                newContent = (byte)(MyVoxelConstants.VOXEL_ISO_LEVEL - value / MyVoxelConstants.VOXEL_SIZE_IN_METRES_HALF * MyVoxelConstants.VOXEL_ISO_LEVEL);
                            }

                            if (newContent > originalContent)
                            {
                                if (material != null)
                                {
                                    m_cache.Material(ref cachePos, oldMaterial);
                                }

                                changed = true;
                                m_cache.Content(ref cachePos, newContent);
                            }
                        }

                        //Delete sphere
                        float delDist = (float)(voxelPosition - newDelCenter).LengthSquared();
                        float delDiff = (float)(delDist - sphRadSqD);

                        byte contentToRemove;
                        if (delDiff > voxelSizeHalfTransformedPosD)
                        {
                            contentToRemove = MyVoxelConstants.VOXEL_CONTENT_EMPTY;
                        }
                        else if (delDiff < voxelSizeHalfTransformedNegD)
                        {
                            contentToRemove = MyVoxelConstants.VOXEL_CONTENT_FULL;
                        }
                        else
                        {
                            float value = (float)Math.Sqrt(delDist + sphRadSqD - 2 * sphRadD * Math.Sqrt(delDist));
                            if (delDiff < 0)
                            {
                                value = -value;
                            }
                            //  This formula will work even if diff is positive or negative
                            contentToRemove = (byte)(MyVoxelConstants.VOXEL_ISO_LEVEL - value / MyVoxelConstants.VOXEL_SIZE_IN_METRES_HALF * MyVoxelConstants.VOXEL_ISO_LEVEL);
                        }

                        originalContent = m_cache.Content(ref cachePos);

                        if (originalContent > MyVoxelConstants.VOXEL_CONTENT_EMPTY && contentToRemove > MyVoxelConstants.VOXEL_CONTENT_EMPTY)
                        {
                            changed = true;

                            int newVal = originalContent - contentToRemove;
                            if (newVal < MyVoxelConstants.VOXEL_CONTENT_EMPTY)
                            {
                                newVal = MyVoxelConstants.VOXEL_CONTENT_EMPTY;
                            }
                            m_cache.Content(ref cachePos, (byte)newVal);

                            removedVoxelContent += originalContent - newVal;
                        }

                        //Set material

                        float setDist = (float)(voxelPosition - newSetCenter).LengthSquared();
                        float setDiff = (float)(setDist - sphRadSqS);

                        if (setDiff <= MyVoxelConstants.VOXEL_SIZE_IN_METRES * 1.5f)  // could be VOXEL_SIZE_IN_METRES_HALF, but we want to set material in empty cells correctly
                        {
                            MyVoxelMaterialDefinition originalMaterial = MyDefinitionManager.Static.GetVoxelMaterialDefinition(m_cache.Material(ref cachePos));

                            // Change the material:
                            // - always on boundaries between material and nothing
                            // - smoothly on inner boundaries
                            MyVoxelMaterialDefinition newMaterial = material;
                            if (setDiff > 0)
                            {
                                byte content = m_cache.Content(ref cachePos);
                                if (content == MyVoxelConstants.VOXEL_CONTENT_FULL)
                                {
                                    newMaterial = originalMaterial;
                                }
                                if (setDiff >= voxelSizeHalfTransformedPosS && content != MyVoxelConstants.VOXEL_CONTENT_EMPTY)  // set material behind boundary only for empty voxels
                                {
                                    newMaterial = originalMaterial;
                                }
                            }

                            if (originalMaterial == newMaterial)
                            {
                                continue;
                            }

                            m_cache.Material(ref cachePos, newMaterial.Index);
                            changed = true;
                        }

                        float dist = (float)(voxelPosition - newCenter).LengthSquared();
                        float diff = (float)(dist - sphRadSqA);

                        if (diff <= 0f)
                        {
                            originalContent = m_cache.Content(ref cachePos);
                            if (originalContent > MyVoxelConstants.VOXEL_CONTENT_EMPTY)
                            {
                                bool wrinkled = m_cache.WrinkleVoxelContent(ref cachePos, MyVoxelConstants.DEFAULT_WRINKLE_WEIGHT_ADD, MyVoxelConstants.DEFAULT_WRINKLE_WEIGHT_REMOVE);
                                if (wrinkled)
                                {
                                    changed = true;
                                }
                            }
                        }
                    }
                }
            }
            ProfilerShort.End();

            if (changed)
            {
                ProfilerShort.Begin("RemoveSmallVoxelsUsingChachedVoxels");
                RemoveSmallVoxelsUsingChachedVoxels();
                ProfilerShort.BeginNextBlock("Writing cache");
                minCorner += voxelMap.StorageMin;
                maxCorner += voxelMap.StorageMin;
                voxelMap.Storage.WriteRange(m_cache, MyStorageDataTypeFlags.ContentAndMaterial, ref minCorner, ref maxCorner);
                MyShapeSphere sphereShape = new MyShapeSphere();
                sphereShape.Center = sphere.Center;
                sphereShape.Radius = (float)(sphere.Radius * 1.5);
                OnVoxelChanged(MyVoxelBase.OperationType.Cut, voxelMap, sphereShape);
                ProfilerShort.End();
            }

            ProfilerShort.End();
        }