#include <iostream.h>
#include <string.h>

Uint16 is_team_winning_and_which_is_it(Uint16 touching_freq) {
    if (touching_freq == first_flagholder) {
        ++lower_bound;
        ++upper_bound;
    }
    else {
        --lower_bound;
    }

    Uint16 returner = 65535; // -1 indicating a "no" response.

    if (lower_bound == 0  ||  upper_bound == flaglist->total) {
        if (lower_bound != flaglist->total) {
            reread_flags(); // Updates first_flagholder, upp/lower_bound.
        }

        // "If the first_flagholder holds all the flags..."
        if (lower_bound == flaglist->total) {
            returner = first_flag_holder;
        }
    }

    return returner;
}

void reread_flags() {

    if (flaglist->head) {
        _listnode<Flag> * reader = flaglist->head;

        first_flagholder = reader->item->team;
        reader = reader->next;
        lower_bound = 1;
       
        while (reader) {
            // Add one if the flag is owned by the first_flagholder.
            lower_bound += (reader->item->team == first_flagholder);

            reader = reader->next;
        }

        upper_bound = lower_bound;
    }

    return;
}