fix some errors when routing

src/c3nav/routing/graph.py

@@ -269,7 +269,7 @@ class Graph:
         orig_points_i, orig_distances, orig_ctypes = self.get_location_points(origin, 'orig')
         dest_points_i, dest_distances, dest_ctypes = self.get_location_points(destination, 'dest')
 
-        if not orig_points_i or not dest_points_i:
+        if not len(orig_points_i) or not len(dest_points_i):
             raise NoRouteFound()
 
         add_orig_point = origin if isinstance(origin, PointLocation) else None

src/c3nav/routing/room.py

@@ -264,7 +264,7 @@ class GraphRoom():
 
     def _build_router(self, ctypes, public, nonpublic, avoid, include):
         ctype_factors = np.ones((len(self.ctypes), 1, 1))*1000
-        ctype_factors[ctypes] = 1
+        ctype_factors[ctypes, :, :] = 1
 
         distances = np.amin(self.distances*ctype_factors, axis=0).astype(np.float32)
         factors = np.ones_like(distances, dtype=np.float16)