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-rw-r--r--src/SMAPI/Events/ChestInventoryChangedEventArgs.cs48
-rw-r--r--src/SMAPI/Events/IWorldEvents.cs3
-rw-r--r--src/SMAPI/Events/InventoryChangedEventArgs.cs34
-rw-r--r--src/SMAPI/Events/ItemStackChange.cs20
-rw-r--r--src/SMAPI/Framework/Events/EventManager.cs4
-rw-r--r--src/SMAPI/Framework/Events/ModWorldEvents.cs7
-rw-r--r--src/SMAPI/Framework/SGame.cs17
-rw-r--r--src/SMAPI/Framework/SnapshotItemListDiff.cs66
-rw-r--r--src/SMAPI/Framework/StateTracking/ChestTracker.cs101
-rw-r--r--src/SMAPI/Framework/StateTracking/FieldWatchers/NetListWatcher.cs143
-rw-r--r--src/SMAPI/Framework/StateTracking/FieldWatchers/WatcherFactory.cs8
-rw-r--r--src/SMAPI/Framework/StateTracking/LocationTracker.cs60
-rw-r--r--src/SMAPI/Framework/StateTracking/PlayerTracker.cs32
-rw-r--r--src/SMAPI/Framework/StateTracking/Snapshots/LocationSnapshot.cs13
-rw-r--r--src/SMAPI/Framework/StateTracking/Snapshots/PlayerSnapshot.cs15
15 files changed, 501 insertions, 70 deletions
diff --git a/src/SMAPI/Events/ChestInventoryChangedEventArgs.cs b/src/SMAPI/Events/ChestInventoryChangedEventArgs.cs
new file mode 100644
index 00000000..4b4c4210
--- /dev/null
+++ b/src/SMAPI/Events/ChestInventoryChangedEventArgs.cs
@@ -0,0 +1,48 @@
+using System;
+using System.Collections.Generic;
+using StardewValley;
+using StardewValley.Objects;
+
+namespace StardewModdingAPI.Events
+{
+ /// <summary>Event arguments for a <see cref="IWorldEvents.ChestInventoryChanged"/> event.</summary>
+ public class ChestInventoryChangedEventArgs : EventArgs
+ {
+ /*********
+ ** Accessors
+ *********/
+ /// <summary>The chest whose inventory changed.</summary>
+ public Chest Chest { get; }
+
+ /// <summary>The location containing the chest.</summary>
+ public GameLocation Location { get; }
+
+ /// <summary>The added item stacks.</summary>
+ public IEnumerable<Item> Added { get; }
+
+ /// <summary>The removed item stacks.</summary>
+ public IEnumerable<Item> Removed { get; }
+
+ /// <summary>The item stacks whose size changed.</summary>
+ public IEnumerable<ItemStackSizeChange> QuantityChanged { get; }
+
+
+ /*********
+ ** Public methods
+ *********/
+ /// <summary>Construct an instance.</summary>
+ /// <param name="chest">The chest whose inventory changed.</param>
+ /// <param name="location">The location containing the chest.</param>
+ /// <param name="added">The added item stacks.</param>
+ /// <param name="removed">The removed item stacks.</param>
+ /// <param name="quantityChanged">The item stacks whose size changed.</param>
+ internal ChestInventoryChangedEventArgs(Chest chest, GameLocation location, Item[] added, Item[] removed, ItemStackSizeChange[] quantityChanged)
+ {
+ this.Location = location;
+ this.Chest = chest;
+ this.Added = added;
+ this.Removed = removed;
+ this.QuantityChanged = quantityChanged;
+ }
+ }
+}
diff --git a/src/SMAPI/Events/IWorldEvents.cs b/src/SMAPI/Events/IWorldEvents.cs
index 0ceffcc1..9569a57b 100644
--- a/src/SMAPI/Events/IWorldEvents.cs
+++ b/src/SMAPI/Events/IWorldEvents.cs
@@ -23,6 +23,9 @@ namespace StardewModdingAPI.Events
/// <summary>Raised after objects are added or removed in a location.</summary>
event EventHandler<ObjectListChangedEventArgs> ObjectListChanged;
+ /// <summary>Raised after items are added or removed from a chest.</summary>
+ event EventHandler<ChestInventoryChangedEventArgs> ChestInventoryChanged;
+
/// <summary>Raised after terrain features (like floors and trees) are added or removed in a location.</summary>
event EventHandler<TerrainFeatureListChangedEventArgs> TerrainFeatureListChanged;
}
diff --git a/src/SMAPI/Events/InventoryChangedEventArgs.cs b/src/SMAPI/Events/InventoryChangedEventArgs.cs
index 874c2e48..40cd4128 100644
--- a/src/SMAPI/Events/InventoryChangedEventArgs.cs
+++ b/src/SMAPI/Events/InventoryChangedEventArgs.cs
@@ -1,6 +1,5 @@
using System;
using System.Collections.Generic;
-using System.Linq;
using StardewValley;
namespace StardewModdingAPI.Events
@@ -14,13 +13,13 @@ namespace StardewModdingAPI.Events
/// <summary>The player whose inventory changed.</summary>
public Farmer Player { get; }
- /// <summary>The added items.</summary>
+ /// <summary>The added item stacks.</summary>
public IEnumerable<Item> Added { get; }
- /// <summary>The removed items.</summary>
+ /// <summary>The removed item stacks.</summary>
public IEnumerable<Item> Removed { get; }
- /// <summary>The items whose stack sizes changed, with the relative change.</summary>
+ /// <summary>The item stacks whose size changed.</summary>
public IEnumerable<ItemStackSizeChange> QuantityChanged { get; }
/// <summary>Whether the affected player is the local one.</summary>
@@ -32,28 +31,15 @@ namespace StardewModdingAPI.Events
*********/
/// <summary>Construct an instance.</summary>
/// <param name="player">The player whose inventory changed.</param>
- /// <param name="changedItems">The inventory changes.</param>
- internal InventoryChangedEventArgs(Farmer player, ItemStackChange[] changedItems)
+ /// <param name="added">The added item stacks.</param>
+ /// <param name="removed">The removed item stacks.</param>
+ /// <param name="quantityChanged">The item stacks whose size changed.</param>
+ internal InventoryChangedEventArgs(Farmer player, Item[] added, Item[] removed, ItemStackSizeChange[] quantityChanged)
{
this.Player = player;
- this.Added = changedItems
- .Where(n => n.ChangeType == ChangeType.Added)
- .Select(p => p.Item)
- .ToArray();
-
- this.Removed = changedItems
- .Where(n => n.ChangeType == ChangeType.Removed)
- .Select(p => p.Item)
- .ToArray();
-
- this.QuantityChanged = changedItems
- .Where(n => n.ChangeType == ChangeType.StackChange)
- .Select(change => new ItemStackSizeChange(
- item: change.Item,
- oldSize: change.Item.Stack - change.StackChange,
- newSize: change.Item.Stack
- ))
- .ToArray();
+ this.Added = added;
+ this.Removed = removed;
+ this.QuantityChanged = quantityChanged;
}
}
}
diff --git a/src/SMAPI/Events/ItemStackChange.cs b/src/SMAPI/Events/ItemStackChange.cs
deleted file mode 100644
index f9ae6df6..00000000
--- a/src/SMAPI/Events/ItemStackChange.cs
+++ /dev/null
@@ -1,20 +0,0 @@
-using StardewValley;
-
-namespace StardewModdingAPI.Events
-{
- /// <summary>Represents an inventory slot that changed.</summary>
- public class ItemStackChange
- {
- /*********
- ** Accessors
- *********/
- /// <summary>The item in the slot.</summary>
- public Item Item { get; set; }
-
- /// <summary>The amount by which the item's stack size changed.</summary>
- public int StackChange { get; set; }
-
- /// <summary>How the inventory slot changed.</summary>
- public ChangeType ChangeType { get; set; }
- }
-} \ No newline at end of file
diff --git a/src/SMAPI/Framework/Events/EventManager.cs b/src/SMAPI/Framework/Events/EventManager.cs
index 18b00f69..892cbc7b 100644
--- a/src/SMAPI/Framework/Events/EventManager.cs
+++ b/src/SMAPI/Framework/Events/EventManager.cs
@@ -148,6 +148,9 @@ namespace StardewModdingAPI.Framework.Events
/// <summary>Raised after objects are added or removed in a location.</summary>
public readonly ManagedEvent<ObjectListChangedEventArgs> ObjectListChanged;
+ /// <summary>Raised after items are added or removed from a chest.</summary>
+ public readonly ManagedEvent<ChestInventoryChangedEventArgs> ChestInventoryChanged;
+
/// <summary>Raised after terrain features (like floors and trees) are added or removed in a location.</summary>
public readonly ManagedEvent<TerrainFeatureListChangedEventArgs> TerrainFeatureListChanged;
@@ -221,6 +224,7 @@ namespace StardewModdingAPI.Framework.Events
this.LocationListChanged = ManageEventOf<LocationListChangedEventArgs>(nameof(IModEvents.World), nameof(IWorldEvents.BuildingListChanged));
this.NpcListChanged = ManageEventOf<NpcListChangedEventArgs>(nameof(IModEvents.World), nameof(IWorldEvents.NpcListChanged));
this.ObjectListChanged = ManageEventOf<ObjectListChangedEventArgs>(nameof(IModEvents.World), nameof(IWorldEvents.ObjectListChanged));
+ this.ChestInventoryChanged = ManageEventOf<ChestInventoryChangedEventArgs>(nameof(IModEvents.World), nameof(IWorldEvents.ChestInventoryChanged));
this.TerrainFeatureListChanged = ManageEventOf<TerrainFeatureListChangedEventArgs>(nameof(IModEvents.World), nameof(IWorldEvents.TerrainFeatureListChanged));
this.LoadStageChanged = ManageEventOf<LoadStageChangedEventArgs>(nameof(IModEvents.Specialized), nameof(ISpecializedEvents.LoadStageChanged));
diff --git a/src/SMAPI/Framework/Events/ModWorldEvents.cs b/src/SMAPI/Framework/Events/ModWorldEvents.cs
index b85002a3..2ae69669 100644
--- a/src/SMAPI/Framework/Events/ModWorldEvents.cs
+++ b/src/SMAPI/Framework/Events/ModWorldEvents.cs
@@ -51,6 +51,13 @@ namespace StardewModdingAPI.Framework.Events
remove => this.EventManager.ObjectListChanged.Remove(value);
}
+ /// <summary>Raised after items are added or removed from a chest.</summary>
+ public event EventHandler<ChestInventoryChangedEventArgs> ChestInventoryChanged
+ {
+ add => this.EventManager.ChestInventoryChanged.Add(value);
+ remove => this.EventManager.ChestInventoryChanged.Remove(value);
+ }
+
/// <summary>Raised after terrain features (like floors and trees) are added or removed in a location.</summary>
public event EventHandler<TerrainFeatureListChangedEventArgs> TerrainFeatureListChanged
{
diff --git a/src/SMAPI/Framework/SGame.cs b/src/SMAPI/Framework/SGame.cs
index 4774233e..e2b22ba7 100644
--- a/src/SMAPI/Framework/SGame.cs
+++ b/src/SMAPI/Framework/SGame.cs
@@ -702,6 +702,16 @@ namespace StardewModdingAPI.Framework
if (locState.Objects.IsChanged)
events.ObjectListChanged.Raise(new ObjectListChangedEventArgs(location, locState.Objects.Added, locState.Objects.Removed));
+ // chest items changed
+ if (events.ChestInventoryChanged.HasListeners())
+ {
+ foreach (var pair in locState.ChestItems)
+ {
+ SnapshotItemListDiff diff = pair.Value;
+ events.ChestInventoryChanged.Raise(new ChestInventoryChangedEventArgs(pair.Key, location, added: diff.Added, removed: diff.Removed, quantityChanged: diff.QuantityChanged));
+ }
+ }
+
// terrain features changed
if (locState.TerrainFeatures.IsChanged)
events.TerrainFeatureListChanged.Raise(new TerrainFeatureListChangedEventArgs(location, locState.TerrainFeatures.Added, locState.TerrainFeatures.Removed));
@@ -740,12 +750,13 @@ namespace StardewModdingAPI.Framework
}
// raise player inventory changed
- ItemStackChange[] changedItems = playerState.InventoryChanges.ToArray();
- if (changedItems.Any())
+ if (playerState.Inventory.IsChanged)
{
+ var inventory = playerState.Inventory;
+
if (this.Monitor.IsVerbose)
this.Monitor.Log("Events: player inventory changed.", LogLevel.Trace);
- events.InventoryChanged.Raise(new InventoryChangedEventArgs(player, changedItems));
+ events.InventoryChanged.Raise(new InventoryChangedEventArgs(player, added: inventory.Added, removed: inventory.Removed, quantityChanged: inventory.QuantityChanged));
}
}
}
diff --git a/src/SMAPI/Framework/SnapshotItemListDiff.cs b/src/SMAPI/Framework/SnapshotItemListDiff.cs
new file mode 100644
index 00000000..e8ab1b1e
--- /dev/null
+++ b/src/SMAPI/Framework/SnapshotItemListDiff.cs
@@ -0,0 +1,66 @@
+using System.Collections.Generic;
+using System.Linq;
+using StardewModdingAPI.Events;
+using StardewValley;
+
+namespace StardewModdingAPI.Framework
+{
+ /// <summary>A snapshot of a tracked item list.</summary>
+ internal class SnapshotItemListDiff
+ {
+ /*********
+ ** Accessors
+ *********/
+ /// <summary>Whether the item list changed.</summary>
+ public bool IsChanged { get; }
+
+ /// <summary>The removed values.</summary>
+ public Item[] Removed { get; }
+
+ /// <summary>The added values.</summary>
+ public Item[] Added { get; }
+
+ /// <summary>The items whose stack sizes changed.</summary>
+ public ItemStackSizeChange[] QuantityChanged { get; }
+
+
+ /*********
+ ** Public methods
+ *********/
+ /// <summary>Update the snapshot.</summary>
+ /// <param name="added">The added values.</param>
+ /// <param name="removed">The removed values.</param>
+ /// <param name="sizesChanged">The items whose stack sizes changed.</param>
+ public SnapshotItemListDiff(Item[] added, Item[] removed, ItemStackSizeChange[] sizesChanged)
+ {
+ this.Removed = removed;
+ this.Added = added;
+ this.QuantityChanged = sizesChanged;
+
+ this.IsChanged = removed.Length > 0 || added.Length > 0 || sizesChanged.Length > 0;
+ }
+
+ /// <summary>Get a snapshot diff if anything changed in the given data.</summary>
+ /// <param name="added">The added item stacks.</param>
+ /// <param name="removed">The removed item stacks.</param>
+ /// <param name="stackSizes">The items with their previous stack sizes.</param>
+ /// <param name="changes">The inventory changes, or <c>null</c> if nothing changed.</param>
+ /// <returns>Returns whether anything changed.</returns>
+ public static bool TryGetChanges(ISet<Item> added, ISet<Item> removed, IDictionary<Item, int> stackSizes, out SnapshotItemListDiff changes)
+ {
+ KeyValuePair<Item, int>[] sizesChanged = stackSizes.Where(p => p.Key.Stack != p.Value).ToArray();
+ if (sizesChanged.Any() || added.Any() || removed.Any())
+ {
+ changes = new SnapshotItemListDiff(
+ added: added.ToArray(),
+ removed: removed.ToArray(),
+ sizesChanged: sizesChanged.Select(p => new ItemStackSizeChange(p.Key, p.Value, p.Key.Stack)).ToArray()
+ );
+ return true;
+ }
+
+ changes = null;
+ return false;
+ }
+ }
+}
diff --git a/src/SMAPI/Framework/StateTracking/ChestTracker.cs b/src/SMAPI/Framework/StateTracking/ChestTracker.cs
new file mode 100644
index 00000000..65f58ee7
--- /dev/null
+++ b/src/SMAPI/Framework/StateTracking/ChestTracker.cs
@@ -0,0 +1,101 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using StardewModdingAPI.Framework.StateTracking.Comparers;
+using StardewModdingAPI.Framework.StateTracking.FieldWatchers;
+using StardewValley;
+using StardewValley.Objects;
+
+namespace StardewModdingAPI.Framework.StateTracking
+{
+ /// <summary>Tracks changes to a chest's items.</summary>
+ internal class ChestTracker : IDisposable
+ {
+ /*********
+ ** Fields
+ *********/
+ /// <summary>The item stack sizes as of the last update.</summary>
+ private readonly IDictionary<Item, int> StackSizes;
+
+ /// <summary>Items added since the last update.</summary>
+ private readonly HashSet<Item> Added = new HashSet<Item>(new ObjectReferenceComparer<Item>());
+
+ /// <summary>Items removed since the last update.</summary>
+ private readonly HashSet<Item> Removed = new HashSet<Item>(new ObjectReferenceComparer<Item>());
+
+ /// <summary>The underlying inventory watcher.</summary>
+ private readonly ICollectionWatcher<Item> InventoryWatcher;
+
+
+ /*********
+ ** Accessors
+ *********/
+ /// <summary>The chest being tracked.</summary>
+ public Chest Chest { get; }
+
+
+ /*********
+ ** Public methods
+ *********/
+ /// <summary>Construct an instance.</summary>
+ /// <param name="chest">The chest being tracked.</param>
+ public ChestTracker(Chest chest)
+ {
+ this.Chest = chest;
+ this.InventoryWatcher = WatcherFactory.ForNetList(chest.items);
+
+ this.StackSizes = this.Chest.items
+ .Where(n => n != null)
+ .Distinct()
+ .ToDictionary(n => n, n => n.Stack);
+ }
+
+ /// <summary>Update the current values if needed.</summary>
+ public void Update()
+ {
+ // update watcher
+ this.InventoryWatcher.Update();
+ foreach (Item item in this.InventoryWatcher.Added)
+ this.Added.Add(item);
+ foreach (Item item in this.InventoryWatcher.Removed)
+ {
+ if (!this.Added.Remove(item)) // item didn't change if it was both added and removed, so remove it from both lists
+ this.Removed.Add(item);
+ }
+
+ // stop tracking removed stacks
+ foreach (Item item in this.Removed)
+ this.StackSizes.Remove(item);
+ }
+
+ /// <summary>Reset all trackers so their current values are the baseline.</summary>
+ public void Reset()
+ {
+ // update stack sizes
+ foreach (Item item in this.StackSizes.Keys.ToArray().Concat(this.Added))
+ this.StackSizes[item] = item.Stack;
+
+ // update watcher
+ this.InventoryWatcher.Reset();
+ this.Added.Clear();
+ this.Removed.Clear();
+ }
+
+ /// <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);
+ }
+
+ /// <summary>Release watchers and resources.</summary>
+ public void Dispose()
+ {
+ this.StackSizes.Clear();
+ this.Added.Clear();
+ this.Removed.Clear();
+ this.InventoryWatcher.Dispose();
+ }
+ }
+}
diff --git a/src/SMAPI/Framework/StateTracking/FieldWatchers/NetListWatcher.cs b/src/SMAPI/Framework/StateTracking/FieldWatchers/NetListWatcher.cs
new file mode 100644
index 00000000..0b4d3030
--- /dev/null
+++ b/src/SMAPI/Framework/StateTracking/FieldWatchers/NetListWatcher.cs
@@ -0,0 +1,143 @@
+using System.Collections.Generic;
+using Netcode;
+using StardewModdingAPI.Framework.StateTracking.Comparers;
+
+namespace StardewModdingAPI.Framework.StateTracking.FieldWatchers
+{
+ /// <summary>A watcher which detects changes to a net list field.</summary>
+ /// <typeparam name="TValue">The list value type.</typeparam>
+ internal class NetListWatcher<TValue> : BaseDisposableWatcher, ICollectionWatcher<TValue>
+ where TValue : class, INetObject<INetSerializable>
+ {
+ /*********
+ ** Fields
+ *********/
+ /// <summary>The field being watched.</summary>
+ private readonly NetList<TValue, NetRef<TValue>> Field;
+
+ /// <summary>The pairs added since the last reset.</summary>
+ private readonly ISet<TValue> AddedImpl = new HashSet<TValue>(new ObjectReferenceComparer<TValue>());
+
+ /// <summary>The pairs removed since the last reset.</summary>
+ private readonly ISet<TValue> RemovedImpl = new HashSet<TValue>(new ObjectReferenceComparer<TValue>());
+
+
+ /*********
+ ** Accessors
+ *********/
+ /// <summary>Whether the collection changed since the last reset.</summary>
+ public bool IsChanged => this.AddedImpl.Count > 0 || this.RemovedImpl.Count > 0;
+
+ /// <summary>The values added since the last reset.</summary>
+ public IEnumerable<TValue> Added => this.AddedImpl;
+
+ /// <summary>The values removed since the last reset.</summary>
+ public IEnumerable<TValue> Removed => this.RemovedImpl;
+
+
+ /*********
+ ** Public methods
+ *********/
+ /// <summary>Construct an instance.</summary>
+ /// <param name="field">The field to watch.</param>
+ public NetListWatcher(NetList<TValue, NetRef<TValue>> field)
+ {
+ this.Field = field;
+ field.OnElementChanged += this.OnElementChanged;
+ field.OnArrayReplaced += this.OnArrayReplaced;
+ }
+
+ /// <summary>Set the current value as the baseline.</summary>
+ public void Reset()
+ {
+ this.AddedImpl.Clear();
+ this.RemovedImpl.Clear();
+ }
+
+ /// <summary>Update the current value if needed.</summary>
+ public void Update()
+ {
+ this.AssertNotDisposed();
+ }
+
+ /// <summary>Stop watching the field and release all references.</summary>
+ public override void Dispose()
+ {
+ if (!this.IsDisposed)
+ {
+ this.Field.OnElementChanged -= this.OnElementChanged;
+ this.Field.OnArrayReplaced -= this.OnArrayReplaced;
+ }
+
+ base.Dispose();
+ }
+
+
+ /*********
+ ** Private methods
+ *********/
+ /// <summary>A callback invoked when the value list is replaced.</summary>
+ /// <param name="list">The net field whose values changed.</param>
+ /// <param name="oldValues">The previous list of values.</param>
+ /// <param name="newValues">The new list of values.</param>
+ private void OnArrayReplaced(NetList<TValue, NetRef<TValue>> list, IList<TValue> oldValues, IList<TValue> newValues)
+ {
+ ISet<TValue> oldSet = new HashSet<TValue>(oldValues, new ObjectReferenceComparer<TValue>());
+ ISet<TValue> changed = new HashSet<TValue>(newValues, new ObjectReferenceComparer<TValue>());
+
+ foreach (TValue value in oldSet)
+ {
+ if (!changed.Contains(value))
+ this.Remove(value);
+ }
+ foreach (TValue value in changed)
+ {
+ if (!oldSet.Contains(value))
+ this.Add(value);
+ }
+ }
+
+ /// <summary>A callback invoked when an entry is replaced.</summary>
+ /// <param name="list">The net field whose values changed.</param>
+ /// <param name="index">The list index which changed.</param>
+ /// <param name="oldValue">The previous value.</param>
+ /// <param name="newValue">The new value.</param>
+ private void OnElementChanged(NetList<TValue, NetRef<TValue>> list, int index, TValue oldValue, TValue newValue)
+ {
+ this.Remove(oldValue);
+ this.Add(newValue);
+ }
+
+ /// <summary>Track an added item.</summary>
+ /// <param name="value">The value that was added.</param>
+ private void Add(TValue value)
+ {
+ if (value == null)
+ return;
+
+ if (this.RemovedImpl.Contains(value))
+ {
+ this.AddedImpl.Remove(value);
+ this.RemovedImpl.Remove(value);
+ }
+ else
+ this.AddedImpl.Add(value);
+ }
+
+ /// <summary>Track a removed item.</summary>
+ /// <param name="value">The value that was removed.</param>
+ private void Remove(TValue value)
+ {
+ if (value == null)
+ return;
+
+ if (this.AddedImpl.Contains(value))
+ {
+ this.AddedImpl.Remove(value);
+ this.RemovedImpl.Remove(value);
+ }
+ else
+ this.RemovedImpl.Add(value);
+ }
+ }
+}
diff --git a/src/SMAPI/Framework/StateTracking/FieldWatchers/WatcherFactory.cs b/src/SMAPI/Framework/StateTracking/FieldWatchers/WatcherFactory.cs
index 314ff7f5..bde43486 100644
--- a/src/SMAPI/Framework/StateTracking/FieldWatchers/WatcherFactory.cs
+++ b/src/SMAPI/Framework/StateTracking/FieldWatchers/WatcherFactory.cs
@@ -82,6 +82,14 @@ namespace StardewModdingAPI.Framework.StateTracking.FieldWatchers
return new NetCollectionWatcher<T>(collection);
}
+ /// <summary>Get a watcher for a net list.</summary>
+ /// <typeparam name="T">The value type.</typeparam>
+ /// <param name="collection">The net list.</param>
+ public static ICollectionWatcher<T> ForNetList<T>(NetList<T, NetRef<T>> collection) where T : class, INetObject<INetSerializable>
+ {
+ return new NetListWatcher<T>(collection);
+ }
+
/// <summary>Get a watcher for a net dictionary.</summary>
/// <typeparam name="TKey">The dictionary key type.</typeparam>
/// <typeparam name="TValue">The dictionary value type.</typeparam>
diff --git a/src/SMAPI/Framework/StateTracking/LocationTracker.cs b/src/SMAPI/Framework/StateTracking/LocationTracker.cs
index 1f479e12..519fe8f4 100644
--- a/src/SMAPI/Framework/StateTracking/LocationTracker.cs
+++ b/src/SMAPI/Framework/StateTracking/LocationTracker.cs
@@ -5,8 +5,9 @@ using StardewModdingAPI.Framework.StateTracking.FieldWatchers;
using StardewValley;
using StardewValley.Buildings;
using StardewValley.Locations;
+using StardewValley.Objects;
using StardewValley.TerrainFeatures;
-using Object = StardewValley.Object;
+using SObject = StardewValley.Object;
namespace StardewModdingAPI.Framework.StateTracking
{
@@ -42,11 +43,14 @@ namespace StardewModdingAPI.Framework.StateTracking
public ICollectionWatcher<NPC> NpcsWatcher { get; }
/// <summary>Tracks added or removed objects.</summary>
- public IDictionaryWatcher<Vector2, Object> ObjectsWatcher { get; }
+ public IDictionaryWatcher<Vector2, SObject> ObjectsWatcher { get; }
/// <summary>Tracks added or removed terrain features.</summary>
public IDictionaryWatcher<Vector2, TerrainFeature> TerrainFeaturesWatcher { get; }
+ /// <summary>Tracks items added or removed to chests.</summary>
+ public IDictionary<Vector2, ChestTracker> ChestWatchers { get; } = new Dictionary<Vector2, ChestTracker>();
+
/*********
** Public methods
@@ -74,13 +78,8 @@ namespace StardewModdingAPI.Framework.StateTracking
this.ObjectsWatcher,
this.TerrainFeaturesWatcher
});
- }
- /// <summary>Stop watching the player fields and release all references.</summary>
- public void Dispose()
- {
- foreach (IWatcher watcher in this.Watchers)
- watcher.Dispose();
+ this.UpdateChestWatcherList(added: location.Objects.Pairs, removed: new KeyValuePair<Vector2, SObject>[0]);
}
/// <summary>Update the current value if needed.</summary>
@@ -88,6 +87,11 @@ namespace StardewModdingAPI.Framework.StateTracking
{
foreach (IWatcher watcher in this.Watchers)
watcher.Update();
+
+ this.UpdateChestWatcherList(added: this.ObjectsWatcher.Added, removed: this.ObjectsWatcher.Removed);
+
+ foreach (var watcher in this.ChestWatchers)
+ watcher.Value.Update();
}
/// <summary>Set the current value as the baseline.</summary>
@@ -95,6 +99,46 @@ namespace StardewModdingAPI.Framework.StateTracking
{
foreach (IWatcher watcher in this.Watchers)
watcher.Reset();
+
+ foreach (var watcher in this.ChestWatchers)
+ watcher.Value.Reset();
+ }
+
+ /// <summary>Stop watching the player fields and release all references.</summary>
+ public void Dispose()
+ {
+ foreach (IWatcher watcher in this.Watchers)
+ watcher.Dispose();
+
+ foreach (var watcher in this.ChestWatchers.Values)
+ watcher.Dispose();
+ }
+
+
+ /*********
+ ** Private methods
+ *********/
+ /// <summary>Update the watcher list for added or removed chests.</summary>
+ /// <param name="added">The objects added to the location.</param>
+ /// <param name="removed">The objects removed from the location.</param>
+ private void UpdateChestWatcherList(IEnumerable<KeyValuePair<Vector2, SObject>> added, IEnumerable<KeyValuePair<Vector2, SObject>> removed)
+ {
+ // remove unused watchers
+ foreach (KeyValuePair<Vector2, SObject> pair in removed)
+ {
+ if (pair.Value is Chest && this.ChestWatchers.TryGetValue(pair.Key, out ChestTracker watcher))
+ {
+ watcher.Dispose();
+ this.ChestWatchers.Remove(pair.Key);
+ }
+ }
+
+ // add new watchers
+ foreach (KeyValuePair<Vector2, SObject> pair in added)
+ {
+ if (pair.Value is Chest chest && !this.ChestWatchers.ContainsKey(pair.Key))
+ this.ChestWatchers.Add(pair.Key, new ChestTracker(chest));
+ }
}
}
}
diff --git a/src/SMAPI/Framework/StateTracking/PlayerTracker.cs b/src/SMAPI/Framework/StateTracking/PlayerTracker.cs
index 6302a889..cf49a7c1 100644
--- a/src/SMAPI/Framework/StateTracking/PlayerTracker.cs
+++ b/src/SMAPI/Framework/StateTracking/PlayerTracker.cs
@@ -2,10 +2,9 @@ using System;
using System.Collections.Generic;
using System.Linq;
using StardewModdingAPI.Enums;
-using StardewModdingAPI.Events;
+using StardewModdingAPI.Framework.StateTracking.Comparers;
using StardewModdingAPI.Framework.StateTracking.FieldWatchers;
using StardewValley;
-using ChangeType = StardewModdingAPI.Events.ChangeType;
namespace StardewModdingAPI.Framework.StateTracking
{
@@ -99,25 +98,32 @@ namespace StardewModdingAPI.Framework.StateTracking
return this.Player.currentLocation ?? this.LastValidLocation;
}
- /// <summary>Get the player inventory changes between two states.</summary>
- public IEnumerable<ItemStackChange> GetInventoryChanges()
+ /// <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> previous = this.PreviousInventory;
IDictionary<Item, int> current = this.GetInventory();
- foreach (Item item in previous.Keys.Union(current.Keys))
+
+ 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 (!previous.TryGetValue(item, out int prevStack))
- yield return new ItemStackChange { Item = item, StackChange = item.Stack, ChangeType = ChangeType.Added };
- else if (!current.TryGetValue(item, out int newStack))
- yield return new ItemStackChange { Item = item, StackChange = -item.Stack, ChangeType = ChangeType.Removed };
- else if (prevStack != newStack)
- yield return new ItemStackChange { Item = item, StackChange = newStack - prevStack, ChangeType = ChangeType.StackChange };
+ 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>Stop watching the player fields and release all references.</summary>
+ /// <summary>Release watchers and resources.</summary>
public void Dispose()
{
+ this.PreviousInventory.Clear();
+ this.CurrentInventory?.Clear();
+
foreach (IWatcher watcher in this.Watchers)
watcher.Dispose();
}
diff --git a/src/SMAPI/Framework/StateTracking/Snapshots/LocationSnapshot.cs b/src/SMAPI/Framework/StateTracking/Snapshots/LocationSnapshot.cs
index d3029540..6ae52fd0 100644
--- a/src/SMAPI/Framework/StateTracking/Snapshots/LocationSnapshot.cs
+++ b/src/SMAPI/Framework/StateTracking/Snapshots/LocationSnapshot.cs
@@ -2,6 +2,7 @@ using System.Collections.Generic;
using Microsoft.Xna.Framework;
using StardewValley;
using StardewValley.Buildings;
+using StardewValley.Objects;
using StardewValley.TerrainFeatures;
namespace StardewModdingAPI.Framework.StateTracking.Snapshots
@@ -33,6 +34,9 @@ namespace StardewModdingAPI.Framework.StateTracking.Snapshots
/// <summary>Tracks added or removed terrain features.</summary>
public SnapshotListDiff<KeyValuePair<Vector2, TerrainFeature>> TerrainFeatures { get; } = new SnapshotListDiff<KeyValuePair<Vector2, TerrainFeature>>();
+ /// <summary>Tracks changed chest inventories.</summary>
+ public IDictionary<Chest, SnapshotItemListDiff> ChestItems { get; } = new Dictionary<Chest, SnapshotItemListDiff>();
+
/*********
** Public methods
@@ -48,12 +52,21 @@ namespace StardewModdingAPI.Framework.StateTracking.Snapshots
/// <param name="watcher">The watcher to snapshot.</param>
public void Update(LocationTracker watcher)
{
+ // main lists
this.Buildings.Update(watcher.BuildingsWatcher);
this.Debris.Update(watcher.DebrisWatcher);
this.LargeTerrainFeatures.Update(watcher.LargeTerrainFeaturesWatcher);
this.Npcs.Update(watcher.NpcsWatcher);
this.Objects.Update(watcher.ObjectsWatcher);
this.TerrainFeatures.Update(watcher.TerrainFeaturesWatcher);
+
+ // chest inventories
+ this.ChestItems.Clear();
+ foreach (ChestTracker tracker in watcher.ChestWatchers.Values)
+ {
+ if (tracker.TryGetInventoryChanges(out SnapshotItemListDiff changes))
+ this.ChestItems[tracker.Chest] = changes;
+ }
}
}
}
diff --git a/src/SMAPI/Framework/StateTracking/Snapshots/PlayerSnapshot.cs b/src/SMAPI/Framework/StateTracking/Snapshots/PlayerSnapshot.cs
index 7bcd9f82..f0fb9485 100644
--- a/src/SMAPI/Framework/StateTracking/Snapshots/PlayerSnapshot.cs
+++ b/src/SMAPI/Framework/StateTracking/Snapshots/PlayerSnapshot.cs
@@ -11,6 +11,13 @@ namespace StardewModdingAPI.Framework.StateTracking.Snapshots
internal class PlayerSnapshot
{
/*********
+ ** Fields
+ *********/
+ /// <summary>An empty item list diff.</summary>
+ private readonly SnapshotItemListDiff EmptyItemListDiff = new SnapshotItemListDiff(new Item[0], new Item[0], new ItemStackSizeChange[0]);
+
+
+ /*********
** Accessors
*********/
/// <summary>The player being tracked.</summary>
@@ -27,7 +34,7 @@ namespace StardewModdingAPI.Framework.StateTracking.Snapshots
.ToDictionary(skill => skill, skill => new SnapshotDiff<int>());
/// <summary>Get a list of inventory changes.</summary>
- public IEnumerable<ItemStackChange> InventoryChanges { get; private set; }
+ public SnapshotItemListDiff Inventory { get; private set; }
/*********
@@ -47,7 +54,11 @@ namespace StardewModdingAPI.Framework.StateTracking.Snapshots
this.Location.Update(watcher.LocationWatcher);
foreach (var pair in this.Skills)
pair.Value.Update(watcher.SkillWatchers[pair.Key]);
- this.InventoryChanges = watcher.GetInventoryChanges().ToArray();
+
+ this.Inventory = watcher.TryGetInventoryChanges(out SnapshotItemListDiff itemChanges)
+ ? itemChanges
+ : this.EmptyItemListDiff;
+
}
}
}