variables:
    {borderradius} = 1
    {bordershrinktimer} = 6000
on packet event play_server_advancements:
    broadcast "&c%player%&7&lが&3&l進捗を進めた&7&lことによって&e&l世界&7&lが&e&l拡大&7&lされた!!"
    add 1 to {borderradius}
    execute console command "worldborder set %{borderradius}% 3"
on load:
    execute console command "worldborder set %{borderradius}% 3"
every tick:
    {bordershrinktimer} >= 1
    if {borderradius} <= 10:
        send action bar from "&c&l世界の縮小は停止しています" to all players
    else if {borderradius} > 10:
        if {bordershrinktimer} > 6000:
            send action bar from "&c&l世界が縮小しています" to all players
        else if {bordershrinktimer} > 100:
            send action bar from "&c&l世界の縮小まであと&4&l%ceil({bordershrinktimer}/20)%秒" to all players
        else if {bordershrinktimer} <= 100:
            send all players title "&c&l世界の縮小まであと" with subtitle "&4&l%ceil({bordershrinktimer}/20)%秒" for 1 second with 0 tick fade in and 10 tick fade out
            {bordershrinktimer} is 100 or 80 or 60 or 40 or 20
            play sound "UI_BUTTON_CLICK" to all players with volume 1 and pitch 5
        remove 1 from {bordershrinktimer}
        {bordershrinktimer} is 0
        send all players title "&c&l世界の縮小まであと" with subtitle "&4&l0秒" for 1 second with 0 tick fade in and 10 tick fade out
        play sound "BLOCK_ANVIL_PLACE" to all players with volume 1 and pitch 5
        set {bordershrinktimer} to 6060
        remove 5 from {borderradius}
        execute console command "worldborder set %{borderradius}% 3"