Esempio n. 1
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 (sourceCell != this)
            {
                sourceCell.update_inventory();
            }
            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:
                        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();
            sourceCell.update_inventory();
            update_inventory();
        }
    }