/// <summary>Update the tracked values.</summary>
/// <param name="watcher">The player watcher to snapshot.</param>
public void Update(PlayerTracker watcher)
{
this.Location.Update(watcher.LocationWatcher);
foreach (var pair in this.Skills)
pair.Value.Update(watcher.SkillWatchers[pair.Key]);
this.Inventory = watcher.TryGetInventoryChanges(out SnapshotItemListDiff itemChanges)
? itemChanges
: this.EmptyItemListDiff;
}
/// <summary>Get the inventory changes since the last update, if anything changed.</summary>
/// <param name="changes">The inventory changes, or <c>null</c> if nothing changed.</param>
/// <returns>Returns whether anything changed.</returns>
public bool TryGetInventoryChanges(out SnapshotItemListDiff changes)
{
IDictionary <Item, int> current = this.GetInventory();
ISet <Item> added = new HashSet <Item>(new ObjectReferenceComparer <Item>());
ISet <Item> removed = new HashSet <Item>(new ObjectReferenceComparer <Item>());
foreach (Item item in this.PreviousInventory.Keys.Union(current.Keys))
{
if (!this.PreviousInventory.ContainsKey(item))
{
added.Add(item);
}
else if (!current.ContainsKey(item))
{
removed.Add(item);
}
}
return(SnapshotItemListDiff.TryGetChanges(added: added, removed: removed, stackSizes: this.PreviousInventory, out changes));
}
/// <summary>Get the inventory changes since the last update, if anything changed.</summary>
/// <param name="changes">The inventory changes, or <c>null</c> if nothing changed.</param>
/// <returns>Returns whether anything changed.</returns>
public bool TryGetInventoryChanges(out SnapshotItemListDiff changes)
{
return(SnapshotItemListDiff.TryGetChanges(added: this.Added, removed: this.Removed, stackSizes: this.StackSizes, out changes));
}
