chore: initialize standalone UPM package

2026-08-26 02:50:25 +08:00
commit 50da51bd7f
22 changed files with 393 additions and 0 deletions
@@ -0,0 +1,53 @@
+#nullable enable
+
+using System;
+using ShrinkEventBus;
+using Unity.Collections;
+
+namespace ShrinkEventBus.Entities
+{
+    /// <summary>Burst-safe producer queue; playback enters the regular Bus instance.</summary>
+    public sealed class ShrinkEcsEventQueue<TEvent> : IDisposable where TEvent : unmanaged, IShrinkEvent
+    {
+        private NativeQueue<TEvent> _queue;
+
+        public ShrinkEcsEventQueue(Allocator allocator = Allocator.Persistent)
+        {
+            _queue = new NativeQueue<TEvent>(allocator);
+            Writer = new ShrinkEcsEventWriter<TEvent>(_queue.AsParallelWriter());
+        }
+
+        public ShrinkEcsEventWriter<TEvent> Writer { get; }
+
+        public int Playback(IShrinkEventBus bus)
+        {
+            if (bus == null)
+                throw new ArgumentNullException(nameof(bus));
+            var count = 0;
+            while (_queue.TryDequeue(out var eventData))
+            {
+                bus.Post(in eventData);
+                count++;
+            }
+            return count;
+        }
+
+        public void Dispose()
+        {
+            if (_queue.IsCreated)
+                _queue.Dispose();
+        }
+    }
+
+    public readonly struct ShrinkEcsEventWriter<TEvent> where TEvent : unmanaged, IShrinkEvent
+    {
+        private readonly NativeQueue<TEvent>.ParallelWriter _writer;
+
+        internal ShrinkEcsEventWriter(NativeQueue<TEvent>.ParallelWriter writer)
+        {
+            _writer = writer;
+        }
+
+        public void Post(in TEvent eventData) => _writer.Enqueue(eventData);
+    }
+}