コード例 #1
0
        private OperationResponse ItemOperationDestroy(Item item, DestroyItem operation)
        {
            MethodReturnValue result = this.CheckAccess(item);
            if (result.IsOk)
            {
                item.Destroy();
                item.Dispose();
                this.RemoveItem(item);

                item.World.ItemCache.RemoveItem(item.Id);
                var eventInstance = new ItemDestroyed { ItemId = item.Id };
                var eventData = new EventData((byte)EventCode.ItemDestroyed, eventInstance);
                this.Peer.SendEvent(eventData, new SendParameters { ChannelId = Settings.ItemEventChannel });

                // no response, event is sufficient
                operation.OnComplete();
                return null;
            }

            return operation.GetOperationResponse(result);
        }
コード例 #2
0
        /// <summary>
        /// Handles operation DestroyItem: Destroys an existing Item. 
        /// </summary>
        public OperationResponse OperationDestroyItem(PeerBase peer, OperationRequest request, SendParameters sendParameters)
        {
            var operation = new DestroyItem(peer.Protocol, request);
            if (!operation.IsValid)
            {
                return new OperationResponse(request.OperationCode) { ReturnCode = (int)ReturnCode.InvalidOperationParameter, DebugMessage = operation.GetErrorMessage() };
            }

            operation.OnStart();
            Item item;
            bool actorItem = this.TryGetItem(operation.ItemId, out item);

            if (actorItem)
            {
                // we are already in the item thread, invoke directly
                return this.ItemOperationDestroy(item, operation);
            }
            else
            {
                // search world cache just to see if item exists at all
                if (this.World.ItemCache.TryGetItem(operation.ItemId, out item) == false)
                {
                    return operation.GetOperationResponse((int)ReturnCode.ItemNotFound, "ItemNotFound");
                }
                else
                {
                    // second parameter (peer) allows us to send an error event to the client (in case of an error)
                    // error ItemAccessDenied or ItemNotFound will be returned
                    item.Fiber.Enqueue(() => this.ExecItemOperation(() => this.ItemOperationDestroy(item, operation), sendParameters));

                    // operation is continued later
                    return null;
                }
            }
        }