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fix(core): UCG Stage 1 — ResolvePortalPolygon all-or-nothing (match BuildLoadedCell)

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Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
Erik 2026-06-02 09:15:37 +02:00
parent 5bc72d5cd1
commit 03f08f00c1
2 changed files with 41 additions and 5 deletions
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32
tests/AcDream.Core.Tests/World/Cells/EnvCellFromDatTests.cs
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@ -40,4 +40,36 @@ public class EnvCellFromDatTests
Assert.Equal(Vector3.Zero, env.LocalBoundsMax);
Assert.Null(env.ContainmentBsp);
}
[Fact]
public void FromDat_PortalPolygonMissingAVertex_YieldsEmptyPolygonLocal()
{
var cellStruct = new CellStruct
{
VertexArray = new VertexArray { Vertices = new Dictionary<ushort, SWVertex>
{
[0] = new SWVertex { Origin = new Vector3(0, 0, 0) },
[1] = new SWVertex { Origin = new Vector3(1, 0, 0) },
// vertex 2 intentionally MISSING
}},
Polygons = new Dictionary<ushort, Polygon>
{
[0] = new Polygon { VertexIds = new List<short> { 0, 1, 2 } },
},
};
var dat = new DatEnvCell
{
Flags = (EnvCellFlags)0,
CellPortals = new List<DatCellPortal>
{
new() { OtherCellId = 0x0105, PolygonId = 0, OtherPortalId = 0, Flags = (PortalFlags)0 },
},
VisibleCells = new List<ushort>(),
};
var env = EnvCell.FromDat(0xA9B40104u, dat, cellStruct, Matrix4x4.Identity);
Assert.Single(env.Portals);
Assert.Empty(env.Portals[0].PolygonLocal);
}
}