//*******************
// network management
//*******************

boolean network_ref(int i, int j_int, int j_bit){
  return (network_ints[i][j_int] & bitwise_filters[j_bit]) != 0;
}

void updateNet(){
  //... check network for next visited links
  
  for(int u = 0 ; u < led_count; u++){
    if(!visited[u]){
      // see if it should be updated
      // check the network for linked members
      int c = 0;
      for(int c_int = 0; c_int < 10; c_int++){
        for(int c_bit = 0; c_bit < 15; c_bit++){
          //if they are connected, and the one to check is on, turn this one on
          if(network_ref(u, c_int, c_bit) && on[c]){
            on_next[u] = true;
            visited_next[u] = true;
          }
          c++;
        }
      }
    }
  }
  
  // turn the current ones off
  for(int i = 0; i < led_count; i++){
    if(on[i]) on_next[i] = false;
  }
  
  // time step
  for(int i = 0; i < led_count; i++){
    on[i] = on_next[i];
    visited[i] = visited_next[i];
  }
  for(int i = 0; i < led_count; i++){
    on[i] = on_next[i];
    visited[i] = visited_next[i];
  }
  
}

boolean allHaveBeenVisited(){
  boolean toReturn = true;
  for(int i = 0; i < led_count; i++){
    if(!visited[i]){
      toReturn = false;
      break;
    }
  }
  return toReturn;
}