Merge branch 'develop' into stable

1 files changed, 53 insertions, 0 deletions

diff --git a/src/SMAPI/Framework/StateTracking/Snapshots/PlayerSnapshot.cs b/src/SMAPI/Framework/StateTracking/Snapshots/PlayerSnapshot.cs
new file mode 100644
index 00000000..7bcd9f82
--- /dev/null
+++ b/src/SMAPI/Framework/StateTracking/Snapshots/PlayerSnapshot.cs
@@ -0,0 +1,53 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using StardewModdingAPI.Enums;
+using StardewModdingAPI.Events;
+using StardewValley;
+
+namespace StardewModdingAPI.Framework.StateTracking.Snapshots
+{
+    /// <summary>A frozen snapshot of a tracked player.</summary>
+    internal class PlayerSnapshot
+    {
+        /*********
+        ** Accessors
+        *********/
+        /// <summary>The player being tracked.</summary>
+        public Farmer Player { get; }
+
+        /// <summary>The player's current location.</summary>
+        public SnapshotDiff<GameLocation> Location { get; } = new SnapshotDiff<GameLocation>();
+
+        /// <summary>Tracks changes to the player's skill levels.</summary>
+        public IDictionary<SkillType, SnapshotDiff<int>> Skills { get; } =
+            Enum
+                .GetValues(typeof(SkillType))
+                .Cast<SkillType>()
+                .ToDictionary(skill => skill, skill => new SnapshotDiff<int>());
+
+        /// <summary>Get a list of inventory changes.</summary>
+        public IEnumerable<ItemStackChange> InventoryChanges { get; private set; }
+
+
+        /*********
+        ** Public methods
+        *********/
+        /// <summary>Construct an instance.</summary>
+        /// <param name="player">The player being tracked.</param>
+        public PlayerSnapshot(Farmer player)
+        {
+            this.Player = player;
+        }
+
+        /// <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.InventoryChanges = watcher.GetInventoryChanges().ToArray();
+        }
+    }
+}