/// <summary>
/// Check to see whether the player can place the item and if so, draw the telegraph.
/// </summary>
/// <returns>Whether the item can be placed in the target location and the target location</returns>
public (bool canPlace, Vector2 position) ShowPlacementTarget(ItemVisual draggedItem)
{
//Check to see if it's hanging over the edge - if so, do not place.
if (!m_InventoryGrid.layout.Contains(new Vector2(draggedItem.localBound.xMax, draggedItem.localBound.yMax)))
{
m_Telegraph.style.visibility = Visibility.Hidden;
return(canPlace : false, position : Vector2.zero);
}
VisualElement targetSlot = m_InventoryGrid.Children().Where(x => x.layout.Overlaps(draggedItem.layout) && x != draggedItem).OrderBy(x => Vector2.Distance(x.worldBound.position, draggedItem.worldBound.position)).First();
m_Telegraph.style.width = draggedItem.style.width;
m_Telegraph.style.height = draggedItem.style.height;
SetItemPosition(m_Telegraph, new Vector2(targetSlot.layout.position.x, targetSlot.layout.position.y));
m_Telegraph.style.visibility = Visibility.Visible;
var overlappingItems = StoredItems.Where(x => x.RootVisual != null && x.RootVisual.layout.Overlaps(m_Telegraph.layout)).ToArray();
if (overlappingItems.Length > 1)
{
m_Telegraph.style.visibility = Visibility.Hidden;
return(canPlace : false, position : Vector2.zero);
}
return(canPlace : true, targetSlot.worldBound.position);
}
/// <summary>
/// Load all of the inventory items and set them in the default position.
/// This is called from Start.
/// </summary>
private async void LoadInventory()
{
//make sure inventory is in ready state
await UniTask.WaitUntil(() => m_IsInventoryReady);
//load
foreach (StoredItem loadedItem in StoredItems)
{
ItemVisual inventoryItemVisual = new ItemVisual(loadedItem.Details);
AddItemToInventoryGrid(inventoryItemVisual);
bool inventoryHasSpace = await GetPositionForItem(inventoryItemVisual);
if (!inventoryHasSpace)
{
Debug.Log("No space - Cannot pick up the item");
RemoveItemFromInventoryGrid(inventoryItemVisual);
continue;
}
ConfigureInventoryItem(loadedItem, inventoryItemVisual);
}
}
/// <summary>
/// Call to associate item with visual element and set active
/// </summary>
private static void ConfigureInventoryItem(StoredItem item, ItemVisual visual)
{
item.RootVisual = visual;
visual.style.visibility = Visibility.Visible;
}