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fix(portal): synchronize destination presentation state

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Erik 2026-07-16 21:17:13 +02:00
parent 4b1bceefbb
commit e95f55f25b
42 changed files with 2815 additions and 288 deletions
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36
src/AcDream.Core/Physics/PhysicsEngine.cs
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@ -121,6 +121,7 @@ public sealed class PhysicsEngine
public void RemoveLandblock(uint landblockId)
{
_landblocks.Remove(landblockId);
ShadowObjects.DeregisterStaticOwnersForLandblock(landblockId);
ShadowObjects.RemoveLandblock(landblockId);
DataCache?.RemoveCellsForLandblock(landblockId); // D8: rebase cell BSP transforms on next apply
@ -141,6 +142,41 @@ public sealed class PhysicsEngine
DataCache?.CellGraph.RemoveLandblock(landblockId);
}
/// <summary>
/// Retire a Near landblock's indoor-cell and static-object collision layer
/// while preserving its terrain surface and world offset for Far-tier use.
/// The corresponding render-side demotion preserves the terrain slot too.
/// </summary>
public void DemoteLandblockToTerrain(uint landblockId)
{
uint canonical = (landblockId & 0xFFFF0000u) | 0xFFFFu;
if (_landblocks.TryGetValue(canonical, out var landblock))
{
_landblocks[canonical] = landblock with
{
Cells = Array.Empty<CellSurface>(),
Portals = Array.Empty<PortalPlane>(),
};
}
// Static footprints can flood into adjacent landblocks. Retire them by
// logical owner before removing rows by cell prefix, otherwise a mesh
// demoted out of view can remain as invisible collision across a seam.
ShadowObjects.DeregisterStaticOwnersForLandblock(canonical);
ShadowObjects.RemoveLandblock(canonical);
DataCache?.RemoveCellsForLandblock(canonical);
DataCache?.RemoveBuildingsForLandblock(canonical);
DataCache?.CellGraph.RemoveEnvCellsForLandblock(canonical);
if (DataCache?.CellGraph is { } graph
&& graph.CurrCell is { } current
&& (current.Id & 0xFFFF0000u) == (canonical & 0xFFFF0000u)
&& (current.Id & 0xFFFFu) >= 0x0100u)
{
graph.CurrCell = null;
}
}
/// <summary>
/// Find the landblock that contains the given world-space XY position and
/// return its ID plus world-space origin offsets. Returns false when no