C# IEntity类代码示例

 public HitBoxMessage(IEntity source, List<CollisionBox> newboxes, HashSet<string> enable, bool clear)
 {
     Source = source;
     AddBoxes = newboxes;
     EnableBoxes = enable;
     Clear = clear;
 }

    public override void OnEntityAdded(IEntity entity)
    {
        base.OnEntityAdded(entity);

        var polygon = entity.GetComponent<HexagonComponent>();
        var mesh = polygon.Renderer.Mesh;
        var vertices = mesh.vertices;
        polygon.Points = new List<PolygonPoint>(vertices.Length);
        polygon.Segments = new List<PolygonSegment>(vertices.Length);
        polygon.Contour = new PolygonContour();

        for (int i = 0; i < vertices.Length - 1; i++)
            polygon.Points.Add(new PolygonPoint { Shape = polygon, Index = i });

        for (int i = 0; i < polygon.Points.Count; i++)
        {
            var pointA = polygon.Points[i];
            var pointB = polygon.Points[(i + 1) % polygon.Points.Count];
            var segment = new PolygonSegment { Shape = polygon, Index = i, PointA = pointA, PointB = pointB };

            pointA.SegmentB = segment;
            pointB.SegmentA = segment;
            polygon.Segments.Add(segment);
            polygon.Contour.Segments.Add(segment);
        }
    }

		string GetModifier(IEntity decoration)
		{
			string ret = "";
			
			if (IncludeHtmlMarkup) {
				ret += "<i>";
			}
			
			if (decoration.IsStatic) {
				ret += "static ";
			} else if (decoration.IsSealed) {
				ret += "sealed ";
			} else if (decoration.IsVirtual) {
				ret += "virtual ";
			} else if (decoration.IsOverride) {
				ret += "override ";
			} else if (decoration.IsNew) {
				ret += "new ";
			}
			
			if (IncludeHtmlMarkup) {
				ret += "</i>";
			}
			
			return ret;
		}

		/// <summary>
		/// Gets whether <paramref name="entity"/> is accessible in the current class.
		/// </summary>
		/// <param name="entity">The entity to test</param>
		/// <param name="allowProtectedAccess">Whether protected access is allowed.
		/// True if the type of the reference is derived from the current class.</param>
		public bool IsAccessible(IEntity entity, bool allowProtectedAccess)
		{
			if (entity == null)
				throw new ArgumentNullException("entity");
			// C# 4.0 spec, §3.5.2 Accessiblity domains
			switch (entity.Accessibility) {
				case Accessibility.None:
					return false;
				case Accessibility.Private:
					return entity.DeclaringTypeDefinition == currentTypeDefinition;
				case Accessibility.Public:
					return true;
				case Accessibility.Protected:
					return allowProtectedAccess && IsProtectedAccessible(entity.DeclaringTypeDefinition);
				case Accessibility.Internal:
					return IsInternalAccessible(entity.ProjectContent);
				case Accessibility.ProtectedOrInternal:
					return (allowProtectedAccess && IsProtectedAccessible(entity.DeclaringTypeDefinition))
						|| IsInternalAccessible(entity.ProjectContent);
				case Accessibility.ProtectedAndInternal:
					return (allowProtectedAccess && IsProtectedAccessible(entity.DeclaringTypeDefinition))
						&& IsInternalAccessible(entity.ProjectContent);
				default:
					throw new Exception("Invalid value for Accessibility");
			}
		}

        /// <summary>插入</summary>
        /// <param name="entity"></param>
        /// <returns></returns>
        public virtual Int32 Insert(IEntity entity)
        {
            // 添加数据前，处理Guid
            SetGuid(entity);

            DbParameter[] dps = null;
            String sql = SQL(entity, DataObjectMethodType.Insert, ref dps);
            if (String.IsNullOrEmpty(sql)) return 0;

            Int32 rs = 0;
            IEntityOperate op = EntityFactory.CreateOperate(entity.GetType());

            //检查是否有标识列，标识列需要特殊处理
            FieldItem field = op.Table.Identity;
            if (field != null && field.IsIdentity)
            {
                Int64 res = dps != null && dps.Length > 0 ? op.InsertAndGetIdentity(sql, CommandType.Text, dps) : op.InsertAndGetIdentity(sql);
                if (res > 0) entity[field.Name] = res;
                rs = res > 0 ? 1 : 0;
            }
            else
            {

                rs = dps != null && dps.Length > 0 ? op.Execute(sql, CommandType.Text, dps) : op.Execute(sql);
            }

            //清除脏数据，避免连续两次调用Save造成重复提交
            if (entity.Dirtys != null) entity.Dirtys.Clear();

            return rs;
        }

        internal GetIdForm(IEntity ent, IdHandle idh)
        {
            InitializeComponent();

            m_Entity = ent;
            m_IdHandle = idh;
        }

		ICompletionData ICompletionDataFactory.CreateEntityCompletionData(IEntity entity, string text)
		{
			return new EntityCompletionData(entity) {
				CompletionText = text,
				DisplayText = text
			};
		}

 public override void Init(IEntity entity)
 {
     base.Init(entity);
     DropDownPanel = _uiFactory.GetPanel(entity.ID + "_Panel", new EmptyImage(1f, 1f), 0f, 0f);
     DropDownPanel.Visible = false;
     _tree = entity.GetComponent<IInObjectTree>();
 }

        public TowerEntity(ITile location, Texture2D texture, Color color,
            bool isBlocked, float layerDepth, IEntity owner)
            : base(location)
        {
            this.destinationRectangle = new Rectangle
            {
                X = location.Rectangle.X,
                Y = location.Rectangle.Y,
                Height = location.Rectangle.Height,
                Width = location.Rectangle.Width
            };
            this.enabled = true;
            this.isBlocked = true;
            this.texture = texture;
            this.color = color;
            this.layerDepth = layerDepth;

            this.owner = owner;

            this.timer = 5.0f;

            this.IsEnemy = false;
            this.Intensity = 70.0f;
            this.HP = 150;
            this.Damage = 100;
            this.attackRate = 50;
        }

		string GetModifier(IEntity decoration)
		{
			StringBuilder builder = new StringBuilder();
			
			if (IncludeHtmlMarkup) {
				builder.Append("<i>");
			}
			
			if (decoration.IsStatic) {
				builder.Append("Shared ");
			}
			if (decoration.IsAbstract) {
				builder.Append("MustOverride ");
			} else if (decoration.IsSealed) {
				builder.Append("NotOverridable ");
			}
			if (decoration.IsVirtual) {
				builder.Append("Overridable ");
			} else if (decoration.IsOverride) {
				builder.Append("Overrides ");
			}
			if (decoration.IsNew) {
				builder.Append("Shadows ");
			}
			
			if (IncludeHtmlMarkup) {
				builder.Append("</i>");
			}
			
			return builder.ToString();
		}

		public bool NavigateToEntity(IEntity entity)
		{
			if (entity == null)
				throw new ArgumentNullException("entity");
			
			// Get the underlying entity for generic instance members
			while ((entity is IMember) && ((IMember)entity).GenericMember != null)
				entity = ((IMember)entity).GenericMember;
			
			IClass declaringType = (entity as IClass) ?? entity.DeclaringType;
			if (declaringType == null)
				return false;
			// get the top-level type
			while (declaringType.DeclaringType != null)
				declaringType = declaringType.DeclaringType;
			
			ReflectionProjectContent rpc = entity.ProjectContent as ReflectionProjectContent;
			if (rpc != null) {
				string assemblyLocation = ILSpyController.GetAssemblyLocation(rpc);
				if (!string.IsNullOrEmpty(assemblyLocation) && File.Exists(assemblyLocation)) {
					NavigateTo(assemblyLocation, declaringType.DotNetName, ((AbstractEntity)entity).DocumentationTag);
					return true;
				}
			}
			return false;
		}

		/// <summary>
		/// Finds all references to the specified entity.
		/// The results are reported using the callback.
		/// FindReferences may internally use parallelism, and may invoke the callback on multiple
		/// threads in parallel.
		/// </summary>
		public static async Task FindReferencesAsync(IEntity entity, IProgressMonitor progressMonitor, Action<SearchedFile> callback)
		{
			if (entity == null)
				throw new ArgumentNullException("entity");
			if (progressMonitor == null)
				throw new ArgumentNullException("progressMonitor");
			if (callback == null)
				throw new ArgumentNullException("callback");
			SD.MainThread.VerifyAccess();
			if (SD.ParserService.LoadSolutionProjectsThread.IsRunning) {
				progressMonitor.ShowingDialog = true;
				MessageService.ShowMessage("${res:SharpDevelop.Refactoring.LoadSolutionProjectsThreadRunning}");
				progressMonitor.ShowingDialog = false;
				return;
			}
			double totalWorkAmount;
			List<ISymbolSearch> symbolSearches = PrepareSymbolSearch(entity, progressMonitor.CancellationToken, out totalWorkAmount);
			double workDone = 0;
			ParseableFileContentFinder parseableFileContentFinder = new ParseableFileContentFinder();
			foreach (ISymbolSearch s in symbolSearches) {
				progressMonitor.CancellationToken.ThrowIfCancellationRequested();
				using (var childProgressMonitor = progressMonitor.CreateSubTask(s.WorkAmount / totalWorkAmount)) {
					await s.FindReferencesAsync(new SymbolSearchArgs(childProgressMonitor, parseableFileContentFinder), callback);
				}
				
				workDone += s.WorkAmount;
				progressMonitor.Progress = workDone / totalWorkAmount;
			}
		}

        public Template(IEntity templateEntity)
        {
            if(templateEntity == null)
                throw new Exception("Template entity is null");

            _templateEntity = templateEntity;
        }

        /// <summary>
        /// Deletes the provided entity.
        /// </summary>
        /// <param name="entity">The entity to delete.</param>
        public override void Delete(IEntity entity)
        {
            if (entity == null)
                throw new ArgumentNullException("entity");

            using (LogGroup logGroup = LogGroup.StartDebug("Deleting provided '" + entity.ShortTypeName + "' entity."))
            {
                Db4oDataStore store = (Db4oDataStore)GetDataStore(entity);

                if (DataAccess.Data.IsStored(entity))
                {
                    using (Batch batch = BatchState.StartBatch())
                    {
                        IDataReader reader = Provider.InitializeDataReader();
                        reader.AutoRelease = false;

                        entity = reader.GetEntity(entity);

                        if (entity == null)
                            throw new Exception("The entity wasn't found.");

                        // PreDelete must be called to ensure all references are correctly managed
                        PreDelete(entity);

                        // Delete the entity
                        if (entity != null)
                        {
                            store.ObjectContainer.Delete(entity);

                            store.Commit();
                        }
                    }
                }
            }
        }

 public override void Init(IEntity entity)
 {
     base.Init(entity);
     _transform = entity.GetComponent<ITranslateComponent>();
     _uiEvents = entity.GetComponent<IUIEvents>();
     _uiEvents.MouseDown.Subscribe(onMouseDown);
 }