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DotRecastNetSim
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remove new int[3] in GetPolyMergeValue

This commit is contained in:
ikpil 2023-06-06 19:06:01 +09:00
parent 695fe15a6e
commit c70d2ebfd4
2 changed files with 22 additions and 25 deletions
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39
src/DotRecast.Detour.TileCache/TileCacheBuilder.cs
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@ -337,7 +337,7 @@ namespace DotRecast.Detour.TileCache
int ib = bx + by * w;
return layer.regs[ib];
}
private int GetDirOffsetX(int dir)
{
return DirOffsetX[dir & 0x03];
@ -1189,18 +1189,21 @@ namespace DotRecast.Detour.TileCache
- (verts[c] - verts[a]) * (verts[b + 2] - verts[a + 2]) < 0;
}
private int[] GetPolyMergeValue(int[] polys, int pa, int pb, int[] verts, int maxVertsPerPoly)
private int GetPolyMergeValue(int[] polys, int pa, int pb, int[] verts, out int ea, out int eb, int maxVertsPerPoly)
{
ea = 0;
eb = 0;
int na = CountPolyVerts(polys, pa, maxVertsPerPoly);
int nb = CountPolyVerts(polys, pb, maxVertsPerPoly);
// If the merged polygon would be too big, do not merge.
if (na + nb - 2 > maxVertsPerPoly)
return new int[] { -1, 0, 0 };
return -1;
// Check if the polygons share an edge.
int ea = -1;
int eb = -1;
ea = -1;
eb = -1;
for (int i = 0; i < na; ++i)
{
@ -1208,9 +1211,7 @@ namespace DotRecast.Detour.TileCache
int va1 = polys[pa + (i + 1) % na];
if (va0 > va1)
{
int tmp = va0;
va0 = va1;
va1 = tmp;
(va0, va1) = (va1, va0);
}
for (int j = 0; j < nb; ++j)
@ -1219,9 +1220,7 @@ namespace DotRecast.Detour.TileCache
int vb1 = polys[pb + (j + 1) % nb];
if (vb0 > vb1)
{
int tmp = vb0;
vb0 = vb1;
vb1 = tmp;
(vb0, vb1) = (vb1, vb0);
}
if (va0 == vb0 && va1 == vb1)
@ -1235,7 +1234,7 @@ namespace DotRecast.Detour.TileCache
// No common edge, cannot merge.
if (ea == -1 || eb == -1)
return new int[] { -1, ea, eb };
return -1;
// Check to see if the merged polygon would be convex.
int va, vb, vc;
@ -1244,13 +1243,13 @@ namespace DotRecast.Detour.TileCache
vb = polys[pa + ea];
vc = polys[pb + (eb + 2) % nb];
if (!Uleft(verts, va * 3, vb * 3, vc * 3))
return new int[] { -1, ea, eb };
return -1;
va = polys[pb + (eb + nb - 1) % nb];
vb = polys[pb + eb];
vc = polys[pa + (ea + 2) % na];
if (!Uleft(verts, va * 3, vb * 3, vc * 3))
return new int[] { -1, ea, eb };
return -1;
va = polys[pa + ea];
vb = polys[pa + (ea + 1) % na];
@ -1258,7 +1257,7 @@ namespace DotRecast.Detour.TileCache
int dx = verts[va * 3 + 0] - verts[vb * 3 + 0];
int dy = verts[va * 3 + 2] - verts[vb * 3 + 2];
return new int[] { dx * dx + dy * dy, ea, eb };
return (dx * dx) + (dy * dy);
}
private void MergePolys(int[] polys, int pa, int pb, int ea, int eb, int maxVertsPerPoly)
@ -1581,10 +1580,7 @@ namespace DotRecast.Detour.TileCache
for (int k = j + 1; k < npolys; ++k)
{
int pk = k * maxVertsPerPoly;
int[] pm = GetPolyMergeValue(polys, pj, pk, mesh.verts, maxVertsPerPoly);
int v = pm[0];
int ea = pm[1];
int eb = pm[2];
int v = GetPolyMergeValue(polys, pj, pk, mesh.verts, out var ea, out var eb, maxVertsPerPoly);
if (v > bestMergeVal)
{
bestMergeVal = v;
@ -1740,10 +1736,7 @@ namespace DotRecast.Detour.TileCache
for (int k = j + 1; k < npolys; ++k)
{
int pk = k * maxVertsPerPoly;
int[] pm = GetPolyMergeValue(polys, pj, pk, mesh.verts, maxVertsPerPoly);
int v = pm[0];
int ea = pm[1];
int eb = pm[2];
int v = GetPolyMergeValue(polys, pj, pk, mesh.verts, out var ea, out var eb, maxVertsPerPoly);
if (v > bestMergeVal)
{
bestMergeVal = v;

8
src/DotRecast.Recast/RecastMesh.cs
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@ -463,8 +463,9 @@ namespace DotRecast.Recast
private static int GetPolyMergeValue(int[] polys, int pa, int pb, int[] verts, out int ea, out int eb, int nvp)
{
ea = -1;
eb = -1;
ea = 0;
eb = 0;
int na = CountPolyVerts(polys, pa, nvp);
int nb = CountPolyVerts(polys, pb, nvp);
@ -472,6 +473,9 @@ namespace DotRecast.Recast
if (na + nb - 2 > nvp)
return -1;
ea = -1;
eb = -1;
// Check if the polygons share an edge.
for (int i = 0; i < na; ++i)