From 870e0e37e52ec644ad1e2e728b8b9b422b1a6dc4 Mon Sep 17 00:00:00 2001
From: Nick Samarin <nicks1987@bigmir.net>
Date: Thu, 29 Jul 2010 14:06:48 +0000
Subject: - fixed bug in steering actuator: calculate 2d distance to target for
 seeking and fleeing - added possibility to add navmesh modifier manually in
 order to transform manually created mesh to navigation mesh (with navigation
 polygons data layer) - added possibility to use existed navigation mesh
 object for navmesh generation (so new object won't be created, but existed
 object will be updated)

---
 extern/recastnavigation/BlenderNavMesh/NavMeshConversion.cpp | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

(limited to 'extern/recastnavigation')

diff --git a/extern/recastnavigation/BlenderNavMesh/NavMeshConversion.cpp b/extern/recastnavigation/BlenderNavMesh/NavMeshConversion.cpp
index ed02a27cc43..ca11ed68c54 100644
--- a/extern/recastnavigation/BlenderNavMesh/NavMeshConversion.cpp
+++ b/extern/recastnavigation/BlenderNavMesh/NavMeshConversion.cpp
@@ -310,11 +310,18 @@ bool buildNavMeshData(const int nverts, const float* verts,
 	{
 		memcpy(dtris+3*2*i, tris+3*dtrisToTrisMap[i], sizeof(unsigned short)*3);
 	}
-	//create new recast data corresponded to dtris
+	//create new recast data corresponded to dtris and renumber for continious indices
+	int prevPolyIdx=-1, curPolyIdx, newPolyIdx=0;
 	dtrisToPolysMap = new int[ndtris];
 	for (int i=0; i<ndtris; i++)
 	{
-		dtrisToPolysMap[i] = recastData[trisToFacesMap[dtrisToTrisMap[i]]];
+		curPolyIdx = recastData[trisToFacesMap[dtrisToTrisMap[i]]];
+		if (curPolyIdx!=prevPolyIdx)
+		{
+			newPolyIdx++;
+			prevPolyIdx=curPolyIdx;
+		}
+		dtrisToPolysMap[i] = newPolyIdx;
 	}
 
 
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