c_trace(player.x,your.x,IGNORE_ME|IGNORE_PASSABLE|ACTIVATE_SHOOT);

function shoot_event() 
{
  while (event_type == EVENT_SHOOT) 
  {
    {
               set (scanning_txt, VISIBLE);
               wait (1);
       }
       reset (scanning_txt, VISIBLE);
  }
}
action my_entity() 
{
//  my.ENABLE_SHOOT = ON;
  my.emask |= ENABLE_SHOOT;
  my.event = shoot_event;
}