Merge two initialization loops in dijkstra_to

joaquimrocha · Jun 23, 2013 · 701cdef · 701cdef
1 parent a47ad7d
commit 701cdef
Showing 1 changed file with 5 additions and 9 deletions.
diff --git a/skeltrack/skeltrack-util.c b/skeltrack/skeltrack-util.c
@@ -506,22 +506,18 @@ dijkstra_to (GList *nodes, Node *source, Node *target,
   PQueue *queue = pqueue_new (g_list_length (nodes), width, height);
   GList *current;
 
-  for (current = g_list_first (nodes);
-       previous != NULL && current != NULL;
-       current = g_list_next (current))
-    {
-      Node *node;
-      node = (Node *) current->data;
-      previous[node->j * width + node->i] = NULL;
-    }
-
   for (current = g_list_first (nodes);
        current != NULL;
        current = g_list_next (current))
     {
       Node *node;
       node = (Node *) current->data;
 
+      if (previous != NULL)
+        {
+          previous[node->j * width + node->i] = NULL;
+        }
+
       if (node == source)
         {
           pqueue_insert (queue, node, 0);