From 3dead22454f40cbf34ae7015143936acb359580b Mon Sep 17 00:00:00 2001
From: Franklin Sobrinho <franklin_gs@hotmail.com>
Date: Sat, 12 Dec 2015 14:06:27 -0300
Subject: [PATCH] Fix crash caused by a empty NavigationMesh

---
 tools/editor/spatial_editor_gizmos.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tools/editor/spatial_editor_gizmos.cpp b/tools/editor/spatial_editor_gizmos.cpp
index 5efca44c7d..04a6b1b437 100644
--- a/tools/editor/spatial_editor_gizmos.cpp
+++ b/tools/editor/spatial_editor_gizmos.cpp
@@ -2283,6 +2283,8 @@ void NavigationMeshSpatialGizmo::redraw() {
 		}
 	}
 
+	if (faces.empty())
+		return;
 
 	Map<_EdgeKey,bool> edge_map;
 	DVector<Vector3> tmeshfaces;
@@ -2330,7 +2332,7 @@ void NavigationMeshSpatialGizmo::redraw() {
 		}
 	}
 
-	Ref<TriangleMesh> tmesh = memnew( TriangleMesh);
+	Ref<TriangleMesh> tmesh = memnew( TriangleMesh );
 	tmesh->create(tmeshfaces);
 
 	if (lines.size())