I've searched the manual, tried the wiki, and looked at the forums for awhile now but I can't seem to figure this out. I've tried a few versions of code but each one gives a different problem :-/

I need a very simple script that allows an entity to follow a simple path. I know how to create the path but I can't seem to script the entity to follow it.

I used action patrol_path() in the manual but I get a "Crash in patrol_path" error... I added the var temp; part because w/out it I got another error.

Code:
action patrol_path()
 {
  result = path_scan(me,my.x,my.pan,vector(360,180,1000));     
  if (result == 0) { return; }

  var node = 1;
  path_getnode(my,node,my.skill20,NULL);

  while (1)
  {
    var temp;
    var angle[3];
    result = vec_to_angle(angle,vec_diff(temp,my.skill20,my.x));

    if (result < 25) 
    {
      node = path_nextnode(my,node,1);
      path_getnode(my,node,my.skill20,NULL);
    }

    my.pan = angle[0];
    c_move(me,vector(3*time_step,0,0),NULL,GLIDE);
    wait(1);
  }
}


What am I doing wrong? I'm sure this is very simple but I can't seem to put 2 + 2 together today. Thanks for your help!