示例#1
0
        /// <summary>
        /// Put item into this cell.
        /// </summary>
        /// <param name="item">Item.</param>
        private void PlaceItem(DragAndDropItem item)
        {
            if (item != null)
            {
                DestroyItem();                 // Remove current item from this cell
                myDadItem = null;
                DragAndDropCell cell = item.GetComponentInParent <DragAndDropCell>();
                if (cell != null)
                {
                    if (cell.unlimitedSource == true)
                    {
                        string itemName = item.name;
                        item      = Instantiate(item);                    // Clone item from source cell
                        item.name = itemName;
                    }
                }

                item.transform.SetParent(transform, false);
                item.transform.localPosition = Vector3.zero;
                item.MakeRaycast(true);
                myDadItem = item;
            }

            UpdateBackgroundState();
        }
示例#2
0
        /// <summary>
        /// This item started to drag.
        /// </summary>
        /// <param name="eventData"></param>
        public void OnBeginDrag(PointerEventData eventData)
        {
            if (dragDisabled == false)
            {
                sourceCell  = GetCell();            // Remember source cell
                draggedItem = this;                 // Set as dragged item
                // Create item's icon
                icon = new GameObject();
                icon.transform.SetParent(canvas.transform);
                icon.name = "Icon";
                Image myImage = GetComponent <Image>();
                myImage.raycastTarget = false;                 // Disable icon's raycast for correct drop handling
                Image iconImage = icon.AddComponent <Image>();
                iconImage.raycastTarget = false;
                iconImage.sprite        = myImage.sprite;
                RectTransform iconRect = icon.GetComponent <RectTransform>();
                // Set icon's dimensions
                RectTransform myRect = GetComponent <RectTransform>();
                iconRect.pivot     = new Vector2(0.5f, 0.5f);
                iconRect.anchorMin = new Vector2(0.5f, 0.5f);
                iconRect.anchorMax = new Vector2(0.5f, 0.5f);
                iconRect.sizeDelta = new Vector2(myRect.rect.width, myRect.rect.height);

                if (OnItemDragStartEvent != null)
                {
                    OnItemDragStartEvent(this);                     // Notify all items about drag start for raycast disabling
                }
            }
        }
示例#3
0
        /// <summary>
        /// Resets all temporary conditions.
        /// </summary>
        private void ResetConditions()
        {
            if (icon != null)
            {
                Destroy(icon);                 // Destroy icon on item drop
            }

            if (OnItemDragEndEvent != null)
            {
                OnItemDragEndEvent(this);                 // Notify all cells about item drag end
            }

            draggedItem = null;
            icon        = null;
            sourceCell  = null;
        }
示例#4
0
        /// <summary>
        /// Item is dropped in this cell
        /// </summary>
        /// <param name="data"></param>
        public void OnDrop(PointerEventData data)
        {
            if (DragAndDropItem.icon != null)
            {
                DragAndDropItem item       = DragAndDropItem.draggedItem;
                DragAndDropCell sourceCell = DragAndDropItem.sourceCell;
                if (DragAndDropItem.icon.activeSelf == true)                 // If icon inactive do not need to drop item into cell
                {
                    if ((item != null) && (sourceCell != this))
                    {
                        DropEventDescriptor desc = new DropEventDescriptor();
                        switch (cellType)                         // Check this cell's type
                        {
                        case CellType.Swap:                       // Item in destination cell can be swapped
                            UpdateMyItem();
                            switch (sourceCell.cellType)
                            {
                            case CellType.Swap:                                             // Item in source cell can be swapped
                                // Fill event descriptor
                                desc.item            = item;
                                desc.sourceCell      = sourceCell;
                                desc.destinationCell = this;
                                SendRequest(desc);                                                 // Send drop request
                                StartCoroutine(
                                    NotifyOnDragEnd(desc));                                        // Send notification after drop will be finished
                                if (desc.permission == true)                                       // If drop permitted by application
                                {
                                    if (myDadItem != null)                                         // If destination cell has item
                                    {
                                        // Fill event descriptor
                                        DropEventDescriptor descAutoswap = new DropEventDescriptor();
                                        descAutoswap.item            = myDadItem;
                                        descAutoswap.sourceCell      = this;
                                        descAutoswap.destinationCell = sourceCell;
                                        SendRequest(descAutoswap);                                                         // Send drop request
                                        StartCoroutine(
                                            NotifyOnDragEnd(
                                                descAutoswap));                                                                 // Send notification after drop will be finished
                                        if (descAutoswap.permission == true)                                                    // If drop permitted by application
                                        {
                                            SwapItems(sourceCell, this);                                                        // Swap items between cells
                                        }
                                        else
                                        {
                                            PlaceItem(
                                                item);                                                                 // Delete old item and place dropped item into this cell
                                        }
                                    }
                                    else
                                    {
                                        PlaceItem(item);                                                         // Place dropped item into this empty cell
                                    }
                                }

                                break;

                            default:                                             // Item in source cell can not be swapped
                                // Fill event descriptor
                                desc.item            = item;
                                desc.sourceCell      = sourceCell;
                                desc.destinationCell = this;
                                SendRequest(desc);                                                 // Send drop request
                                StartCoroutine(
                                    NotifyOnDragEnd(desc));                                        // Send notification after drop will be finished
                                if (desc.permission == true)                                       // If drop permitted by application
                                {
                                    PlaceItem(item);                                               // Place dropped item into this cell
                                }

                                break;
                            }

                            break;

                        case CellType.DropOnly:                                 // Item only can be dropped into destination cell
                            // Fill event descriptor
                            desc.item            = item;
                            desc.sourceCell      = sourceCell;
                            desc.destinationCell = this;
                            SendRequest(desc);                                     // Send drop request
                            StartCoroutine(NotifyOnDragEnd(desc));                 // Send notification after drop will be finished
                            if (desc.permission == true)                           // If drop permitted by application
                            {
                                PlaceItem(item);                                   // Place dropped item in this cell
                            }

                            break;

                        default:
                            Debug.Log("Drag Only");
                            break;
                        }
                    }
                }

                if (item != null)
                {
                    if (item.GetComponentInParent <DragAndDropCell>() == null) // If item have no cell after drop
                    {
                        Destroy(item.gameObject);                              // Destroy it
                    }
                }

                UpdateMyItem();
                UpdateBackgroundState();
                sourceCell.UpdateMyItem();
                sourceCell.UpdateBackgroundState();
            }
        }