/// <summary>
/// Used when the player is moving an itemUI. When called, check if the player can place
/// the itemUI at the spot it's in.
/// </summary>
/// <param name="itemUI"></param>
/// <param name="position"></param>
/// <returns></returns>
public bool PlaceItemUI(ItemUI itemUI, Vector2 position)
{
// Get the slot where the current UI is hovering over
Vector2 index = GetSlotFromPosition(position);
InventorySlot originalSlot = itemUI.GetTopLeftSlot();
//Debug.Log("move to:" + index);
// Remove the data from the itemUI's previous spots
RemoveItemFromSlot(itemUI);
slotsUsed -= itemUI.GetItem().itemHeight *itemUI.GetItem().itemHeight;
// Check if we can place the ui in that slot
Item item = itemUI.GetItem();
if (!CheckInventorySlot((int)index.y, (int)index.x, item.itemWidth, item.itemHeight))
{
//Debug.Log("Cannot place here");
// Give the reference to the slot back so it can call this method again
itemUI.SetTopLeftSlot(originalSlot);
return(false);
}
else
{
Debug.Log("Can place here");
// Then add the itemUI to this new slot
AddItemToSlot(itemUI.GetItem(), (int)index.y, (int)index.x, itemUI);
//Debug.Log("topleftslot:" + itemUI.GetTopLeftSlot());
return(true);
}
}
/// <summary>
/// Remove an item from designated slots by marking all those slots as not occupied
/// and a removing the corresponding references. Note that this does not destroy the
/// given UI.
/// </summary>
/// <param name="itemUI"></param>
private void RemoveItemFromSlot(ItemUI itemUI)
{
// Get the item from the itemUI
Item item = itemUI.GetItem();
int width = item.itemWidth;
int height = item.itemHeight;
// Get the top left slot
InventorySlot topLeft = itemUI.GetTopLeftSlot();
// Remove the topLeftSlot from the itemUI
itemUI.SetTopLeftSlot(null);
// Find all the slots that this item occupies
// and set them
Vector2 index = topLeft.GetIndex();
int startRow = (int)index.y;
int startCol = (int)index.x;
for (int i = 0; i < height; i++)
{
for (int j = 0; j < width; j++)
{
// Debug
//int y = startRow + i;
//int x = startCol + j;
//Debug.Log(gameObject.name + " set " + y + "," + x + " to NOT occupied");
// Get the slot at this place
InventorySlot slot = inventorySlots[startRow + i, startCol + j];
// Set its references to remove the item from it
slot.SetOccupancy(false);
slot.SetParentItemUI(null);
}
}
// Done!
}