b4c4318c8b
Outdoor terrain cell (retail CLandCell) synthesized on demand from a landblock's TerrainSurface. Factory Synthesize() samples four quad corners to establish Z bounds; PointInCell() tests the 24 m XY quad in world-local space. BuildingCellId stub is null (Stage 2). 2/2 tests RED→GREEN. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
36 lines
1.3 KiB
C#
36 lines
1.3 KiB
C#
using System.Numerics;
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using AcDream.Core.Physics;
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using AcDream.Core.World.Cells;
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using Xunit;
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namespace AcDream.Core.Tests.World.Cells;
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public class LandCellTests
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{
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private static TerrainSurface FlatTerrain()
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=> new TerrainSurface(new byte[81], new float[256], landblockX: 0, landblockY: 0);
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[Fact]
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public void Synthesize_SetsCellIndicesAndQuadBounds()
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{
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var origin = new Vector3(1000f, 2000f, 0f);
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var cell = LandCell.Synthesize(0xA9B40014u, FlatTerrain(), origin, cx: 2, cy: 3);
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Assert.Equal(2, cell.Cx);
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Assert.Equal(3, cell.Cy);
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Assert.Equal(2 * 24f, cell.LocalBoundsMin.X);
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Assert.Equal(3 * 24f, cell.LocalBoundsMin.Y);
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Assert.Equal(3 * 24f, cell.LocalBoundsMax.X);
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Assert.Equal(4 * 24f, cell.LocalBoundsMax.Y);
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Assert.False(cell.IsEnv);
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}
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[Fact]
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public void PointInCell_TestsWorldXyAgainstThe24mQuad()
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{
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var origin = new Vector3(1000f, 2000f, 0f);
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var cell = LandCell.Synthesize(0xA9B40014u, FlatTerrain(), origin, cx: 2, cy: 3);
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Assert.True(cell.PointInCell(new Vector3(1060f, 2080f, 12.3f)));
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Assert.False(cell.PointInCell(new Vector3(1000f, 2080f, 0f)));
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Assert.False(cell.PointInCell(new Vector3(1060f, 2100f, 0f)));
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}
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}
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