on command /setmid:
    trigger:
        set {Mid} to player's location

on command /mid:
    trigger:
        set {MidPos.%player%} to distance between player and {Mid}
        set {MidPos.%player%} to round({MidPos.%player%})
        send "&6&l%player%が%{MidPos.%player%}%mを通過しました"