improved comments

diff --git a/src/libgame/setup.c b/src/libgame/setup.c
index 715464ab13da9140fec5b6cc3e29a9aec93f3774..dfd9ac612eb4127d6a0c4496bc1f9ee552f5c42e 100644 (file)
--- a/src/libgame/setup.c
+++ b/src/libgame/setup.c
@@ -1295,18 +1295,18 @@ TreeInfo *getFirstValidTreeInfoEntry(TreeInfo *node)
   if (node == NULL)
     return NULL;
 
-  if (node->node_group)                // enter level group (step down into tree)
+  if (node->node_group)                // enter node group (step down into tree)
     return getFirstValidTreeInfoEntry(node->node_group);
 
-  if (node->parent_link)       // skip start entry of level group
+  if (node->parent_link)       // skip first node (back link) of node group
   {
-    if (node->next)            // get first real level series entry
+    if (node->next)            // get next regular node
       return getFirstValidTreeInfoEntry(node->next);
-    else                       // leave empty level group and go on
+    else                       // leave empty node group and go on
       return getFirstValidTreeInfoEntry(node->node_parent->next);
   }
 
-  // this seems to be a regular level series
+  // this is a regular tree node
   return node;
 }