// Create sounds to be played at dawn and dusk.

    set bj_dawnSound = CreateSoundFromLabel("RoosterSound", false, false, false, 10000, 10000)

    set bj_duskSound = CreateSoundFromLabel("WolfSound", false, false, false, 10000, 10000)

    // Set up triggers to respond to dawn and dusk.

    set bj_dncSoundsDawn = CreateTrigger()

    call TriggerRegisterGameStateEvent(bj_dncSoundsDawn, GAME_STATE_TIME_OF_DAY, EQUAL, bj_TOD_DAWN)

    call TriggerAddAction(bj_dncSoundsDawn, function SetDNCSoundsDawn)

    set bj_dncSoundsDusk = CreateTrigger()

    call TriggerRegisterGameStateEvent(bj_dncSoundsDusk, GAME_STATE_TIME_OF_DAY, EQUAL, bj_TOD_DUSK)

    call TriggerAddAction(bj_dncSoundsDusk, function SetDNCSoundsDusk)

    // Set up triggers to respond to changes from day to night or vice-versa.

    set bj_dncSoundsDay = CreateTrigger()

    call TriggerRegisterGameStateEvent(bj_dncSoundsDay,   GAME_STATE_TIME_OF_DAY, GREATER_THAN_OR_EQUAL, bj_TOD_DAWN)

    call TriggerRegisterGameStateEvent(bj_dncSoundsDay,   GAME_STATE_TIME_OF_DAY, LESS_THAN,             bj_TOD_DUSK)

    call TriggerAddAction(bj_dncSoundsDay, function SetDNCSoundsDay)

    set bj_dncSoundsNight = CreateTrigger()

    call TriggerRegisterGameStateEvent(bj_dncSoundsNight, GAME_STATE_TIME_OF_DAY, LESS_THAN,             bj_TOD_DAWN)

    call TriggerRegisterGameStateEvent(bj_dncSoundsNight, GAME_STATE_TIME_OF_DAY, GREATER_THAN_OR_EQUAL, bj_TOD_DUSK)

    call TriggerAddAction(bj_dncSoundsNight, function SetDNCSoundsNight)

endfunction