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/**
 * Handle person arrival event.
 * 
 * List of locations are available at main.h.
*/
void person_arrival_at(int location, int event_type) {

    // Init person arrival event in specific location and event type
    event_schedule(
        sim_time + expon(
            MEAN_INTERARRIVAL[location],
            EVNT_TO_STRM[event_type]
        ),
        event_type
    );

    // Fill transfer
    transfer[RIDX_PERSON_ARRIVAL_TIME] = sim_time;
    if (location == LOCN_CAR_RENTAL) {
        transfer[RIDX_PERSON_DESTINATION] =
            // return 1 or 2
            random_integer(DESTINATION_PROBABILITIES, STRM_DESTINATION);
    } else {
        transfer[RIDX_PERSON_DESTINATION] = LOCN_CAR_RENTAL;
    }
    // Do transfer Record index of destination distance from each terminal
    transfer[RIDX_PERSON_DD_FROM_AIR_TERMINAL_1] = (
        (int) transfer[RIDX_PERSON_DESTINATION] - LOCN_AIR_TERMINAL_1
    ) % 3;
    transfer[RIDX_PERSON_DD_FROM_AIR_TERMINAL_2] = (
        (int) transfer[RIDX_PERSON_DESTINATION] - LOCN_AIR_TERMINAL_2
    ) % 3;
    transfer[RIDX_PERSON_DD_FROM_CAR_RENTAL] = (
        (int) transfer[RIDX_PERSON_DESTINATION] - LOCN_CAR_RENTAL
    ) % 3;

    transfer[RIDX_PERSON_ARRIVAL_LOCN] = location;

    // FIFO, so insert last and remove first
    list_file(LAST, LOCN_TO_LIST[location]);

    printf(
        "[%9.4f] PERSON ARRIVED AT LOCATION %d. TOTAL PEOPLE WAITING: %i\n", 
        sim_time, location, list_size[location]
    );

    // Cbeck bus is in location or not, if yes safe the schedule load bus
    int bus_is_here = location == CURR_BUS_LOCN;
    if (bus_is_here && BUS_STOPPED && BUS_ON_STANDBY) {
        safe_schedule_load_bus(location);
    }
}