checkpoint: preserve user-gated FW closeout fixes

tests/AcDream.App.Tests/Rendering/Walk/WalkProductionWorldDataTests.cs

@@ -0,0 +1,54 @@
+using System.Numerics;
+using AcDream.App.Rendering.Scene;
+using AcDream.App.Rendering.Walk;
+
+namespace AcDream.App.Tests.Rendering.Walk;
+
+public sealed class WalkProductionWorldDataTests
+{
+    [Fact]
+    public void BucketOutdoorRecord_UsesEveryOutdoorPhysicsShadowCellAcrossLandblockEdge()
+    {
+        RenderProjectionRecord record = Record(
+            id: 0x1234u,
+            position: new Vector3(191f, 191f, 0f));
+        var buckets = new Dictionary<uint, List<RenderProjectionRecord>>();
+
+        WalkProductionWorldData.BucketOutdoorRecord(
+            in record,
+            [0xF07F0040u, 0xF0800001u, 0xF4180101u],
+            buckets,
+            renderCenterLbX: 0xF0,
+            renderCenterLbY: 0x7F);
+
+        Assert.Equal([0xF07F0040u, 0xF0800001u], buckets.Keys.Order());
+        Assert.All(buckets.Values, bucket => Assert.Equal(record, Assert.Single(bucket)));
+    }
+
+    [Fact]
+    public void BucketOutdoorRecord_UnregisteredEffectFallsBackToRootPositionCell()
+    {
+        RenderProjectionRecord record = Record(
+            id: 0x5678u,
+            position: new Vector3(193f, 25f, 0f));
+        var buckets = new Dictionary<uint, List<RenderProjectionRecord>>();
+
+        WalkProductionWorldData.BucketOutdoorRecord(
+            in record,
+            Array.Empty<uint>(),
+            buckets,
+            renderCenterLbX: 0xEF,
+            renderCenterLbY: 0x7F);
+
+        Assert.Equal([0xF07F0002u], buckets.Keys);
+        Assert.Equal(record, Assert.Single(buckets[0xF07F0002u]));
+    }
+
+    private static RenderProjectionRecord Record(uint id, Vector3 position) =>
+        new RenderProjectionRecord() with
+        {
+            Id = RenderProjectionId.FromRaw(id),
+            Transform = new RenderTransform(Matrix4x4.CreateTranslation(position)),
+            Source = new RenderSourceMetadata() with { LocalEntityId = id },
+        };
+}