server_common/recastnavigation_v1.6.0
5
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Use intermediate variable for nearest point in findNearestPoly

Browse Source 
When the same point is used as center and as nearestPt, the function
would override center and give wrong results.

Fix #118
This commit is contained in:
Jakob Botsch Nielsen 2015-12-16 17:53:34 +01:00
parent 7b4d18f459
commit 7d924b1eee
1 changed files with 11 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
Detour/Source/DetourNavMeshQuery.cpp
View File

@ -721,8 +721,13 @@ dtStatus dtNavMeshQuery::findNearestPoly(const float* center, const float* exten
if (dtStatusFailed(queryPolygons(center, extents, filter, polys, &polyCount, MAX_SEARCH)))
return DT_FAILURE | DT_INVALID_PARAM;
if (polyCount == 0)
return DT_SUCCESS;
// Find nearest polygon amongst the nearby polygons.
dtPolyRef nearest = 0;
float nearestPoint[3];
float nearestDistanceSqr = FLT_MAX;
for (int i = 0; i < polyCount; ++i)
{
@ -751,15 +756,17 @@ dtStatus dtNavMeshQuery::findNearestPoly(const float* center, const float* exten
if (d < nearestDistanceSqr)
{
if (nearestPt)
dtVcopy(nearestPt, closestPtPoly);
dtVcopy(nearestPoint, closestPtPoly);
nearestDistanceSqr = d;
nearest = ref;
}
}
if (nearestRef)
*nearestRef = nearest;
*nearestRef = nearest;
if (nearestPt)
dtVcopy(nearestPt, nearestPoint);
return DT_SUCCESS;
}