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ThiefLightmapper
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Change MightSee to a bool array

This commit is contained in:
Jarrod Doyle 2025-01-27 18:09:11 +00:00
parent 54655254b9
commit 13929e44a6
Signed by: Jayrude
GPG Key ID: 38B57B16E7C0ADF7
1 changed files with 17 additions and 7 deletions
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24
KeepersCompound.Lightmapper/PotentiallyVisibleSet.cs
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@ -12,9 +12,9 @@ public class PotentiallyVisibleSet
public readonly List<int> EdgeIndices = edgeIndices;
}
private readonly struct Edge(int destination, Poly poly)
private readonly struct Edge(int mightSeeLength, int destination, Poly poly)
{
public readonly HashSet<int> MightSee = [];
public readonly bool[] MightSee = new bool[mightSeeLength];
public readonly int Destination = destination;
public readonly Poly Poly = poly;
@ -78,6 +78,12 @@ public class PotentiallyVisibleSet
_graph = new Node[cells.Length];
_edges = [];
var portalCount = 0;
foreach (var cell in cells)
{
portalCount += cell.PortalPolyCount;
}
for (var i = 0; i < cells.Length; i++)
{
var cell = cells[i];
@ -111,7 +117,7 @@ public class PotentiallyVisibleSet
vs.Add(cell.Vertices[cell.Indices[indicesOffset + vIdx]]);
}
var edge = new Edge(poly.Destination, new Poly(vs, cell.Planes[poly.PlaneId]));
var edge = new Edge(portalCount, poly.Destination, new Poly(vs, cell.Planes[poly.PlaneId]));
edgeIndices.Add(_edges.Count);
_edges.Add(edge);
indicesOffset += poly.VertexCount;
@ -148,12 +154,13 @@ public class PotentiallyVisibleSet
while (unexploredCells.Count > 0)
{
var cellIdx = unexploredCells.Pop();
if (!source.MightSee.Add(cellIdx))
if (source.MightSee[cellIdx])
{
continue; // target is already explored
}
source.MightSee[cellIdx] = true;
// Target must be partly behind source, source must be partly in front of target, and source and target cannot face each other
foreach (var targetEdgeIdx in _graph[cellIdx].EdgeIndices)
{
@ -212,9 +219,12 @@ public class PotentiallyVisibleSet
foreach (var edgeIdx in _graph[cellIdx].EdgeIndices)
{
var edge = _edges[edgeIdx];
foreach (var mightSee in edge.MightSee)
for (var i = 0; i < edge.MightSee.Length; i++)
{
visible.Add(mightSee);
if (edge.MightSee[i])
{
visible.Add(i);
}
}
}