on rightclick:
    block is a sign
    line 1 of clicked block is "=========="
    line 2 of clicked block is "&4場所を保存"
    line 3 of clicked block is "&8[右クリック]"
    line 4 of clicked block is "=========="
    set {checkpoint.%player%} to location of player
    message "<gold>保存しました!!"
    command "/playsound note.pling %player% ~ ~ ~ 1 2 1"