From 95cc5788bd736be92b3810d3fea398fadc8865b1 Mon Sep 17 00:00:00 2001
From: Mikko Rasa <tdb@tdb.fi>
Date: Sun, 12 Aug 2012 18:53:52 +0300
Subject: [PATCH] Fix bugs that crept in with refactoring

Also add an additional safeguard against an infinite loop
---
 blender/io_mesh_mspgl/export_mspgl.py | 9 ++++++---
 blender/io_mesh_mspgl/mesh.py         | 2 +-
 2 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/blender/io_mesh_mspgl/export_mspgl.py b/blender/io_mesh_mspgl/export_mspgl.py
index c776c54f..c0fd96e9 100644
--- a/blender/io_mesh_mspgl/export_mspgl.py
+++ b/blender/io_mesh_mspgl/export_mspgl.py
@@ -111,8 +111,9 @@ class Exporter:
 					island.append(face)
 
 					for n in f.get_neighbors():
-						n.flag = True
-						queue.append(n)
+						if not n.flag:
+							n.flag = True
+							queue.append(n)
 
 				# Unflag the island for the next phase
 				for f in island:
@@ -127,7 +128,7 @@ class Exporter:
 				if f.flag:
 					continue
 
-				score = sum(n.flag for n in f.get_neighbors())
+				score = sum(not n.flag for n in f.get_neighbors())
 				if score>0 and score<best:
 					face = f
 					best = score
@@ -137,6 +138,8 @@ class Exporter:
 				strip = mesh.create_strip(face, self.max_strip_len)
 				if strip:
 					island_strips.append(strip)
+				else:
+					face.flag = True
 			else:
 				# Couldn't find a candidate face for starting a strip, so we're
 				# done with this island
diff --git a/blender/io_mesh_mspgl/mesh.py b/blender/io_mesh_mspgl/mesh.py
index d674dbdb..aa8df8d2 100644
--- a/blender/io_mesh_mspgl/mesh.py
+++ b/blender/io_mesh_mspgl/mesh.py
@@ -91,7 +91,7 @@ class Face:
 		raise KeyError("No edge %s"%(key,))
 
 	def get_neighbors(self):
-		neighbors = [e.other_face(f) for e in self.edges]
+		neighbors = [e.other_face(self) for e in self.edges]
 		return list(filter(bool, neighbors))
 
 
-- 
2.45.2