From 838fc67ab0a0be03641e420aadd1b14bee2d3f52 Mon Sep 17 00:00:00 2001
From: Sandern <vannoortsander@gmail.com>
Date: Tue, 5 May 2015 16:42:14 +0200
Subject: [PATCH] Fix old mesh tile not removed when new tile is empty

---
 DetourTileCache/Source/DetourTileCache.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/DetourTileCache/Source/DetourTileCache.cpp b/DetourTileCache/Source/DetourTileCache.cpp
index 9d9e7dd..bdd57df 100644
--- a/DetourTileCache/Source/DetourTileCache.cpp
+++ b/DetourTileCache/Source/DetourTileCache.cpp
@@ -631,7 +631,11 @@ dtStatus dtTileCache::buildNavMeshTile(const dtCompressedTileRef ref, dtNavMesh*
 	
 	// Early out if the mesh tile is empty.
 	if (!bc.lmesh->npolys)
+	{
+		// Remove existing tile.
+		navmesh->removeTile(navmesh->getTileRefAt(tile->header->tx,tile->header->ty,tile->header->tlayer),0,0);
 		return DT_SUCCESS;
+	}
 	
 	dtNavMeshCreateParams params;
 	memset(&params, 0, sizeof(params));