/// <summary>Swaps a whole item or stack.</summary>
/// <returns>True if swap occurs, else false.</returns>
private bool SwapItem(InventoryItem srcInvItem, int fromSlotId, InventoryItem destInvItem, int toSlotId, bool fireEvent)
{
// Check that the source item is able to go to the dest slot and that the destination item non-existant or can be swapped
if (ValidateSlot(srcInvItem, toSlotId) && (destInvItem == null || ValidateSlot(destInvItem, fromSlotId))) {
if (fromSlotId == (int)InventorySlot.Cursor)
_cursorQueue.Dequeue(); // If we're moving something from the cursor, dequeue it
if (srcInvItem.Item.ItemClass == Item.ITEM_CLASS_CONTAINER) { // Are we moving a container from the source slot?
// Clear items from any possible containers
ClearBagContents(toSlotId); // We can assume the items are both containers as we've validated by this point
ClearBagContents(fromSlotId);
// Move source container's items to the destination container slots
int idx = 0;
foreach (InventoryItem invItem in srcInvItem.SubItems()) {
int toContSlotID = GetSlotIdWithinContainer(toSlotId, idx);
int fromContSlotID = GetSlotIdWithinContainer(fromSlotId, idx);
//_log.DebugFormat("Moving item from within a container @ slot {0} to slot {1}", fromContSlotID, toContSlotID);
this[toContSlotID] = invItem;
idx++;
}
}
if (destInvItem != null && destInvItem.Item.ItemClass == Item.ITEM_CLASS_CONTAINER) {
// Move destination container's items to the source container slots
int idx = 0;
int fromContSlotID = GetSlotIdWithinContainer(fromSlotId, idx);
foreach (InventoryItem invItem in destInvItem.SubItems())
this[fromContSlotID + idx++] = invItem;
}
// Swap the source and destination items
this[toSlotId] = srcInvItem;
this[fromSlotId] = destInvItem;
if (fireEvent) {
OnItemMoved(new ItemMoveEventArgs((uint)fromSlotId, (uint)toSlotId, 0, false));
if (destInvItem != null)
OnItemMoved(new ItemMoveEventArgs((uint)toSlotId, (uint)fromSlotId, 0, false));
}
return true;
}
else
return false;
}
