on right click on a sign:
    line 1 of the clicked block is "&f============"
    line 2 of the clicked block is "&e<<CheckPoint>>"
    line 3 of the clicked block is "&b<<Rightclick>>"
    line 4 of the clicked block is "&f============":
        player is on ground
        set {%region at player%.%player%.cp} to location of player
        message "&e<<チェックポイントを設定しました!!>>"
        play sound "BLOCK_NOTE_CHIME" to player with volume 3 and pitch 10
        if {blockcp.%player%} is equal to 2:
            set {blockcp.%player%} to 1
            stop

on right click on a sign:
    line 1 of the clicked block is "&f============"
    line 2 of the clicked block is "&b<<CheckPoint>>"
    line 3 of the clicked block is "&e<<Rightclick>>"
    line 4 of the clicked block is "&f============":
        set {%region at player%.%player%.blockcp} to location of clicked block
        message "&e<<チェックポイントを設定しました!!>>"
        play sound "BLOCK_NOTE_CHIME" to player with volume 3 and pitch 10
        if {blockcp.%player%} is not set:
            set {blockcp.%player%} to 2
            stop

on sign change:
    line 1 is "cp"
    set line 4 to "&f============"
    set line 1 to "&f============"
    set line 3 to "&b<<Rightclick>>"
    set line 2 to "&e<<CheckPoint>>"

on rightclick with clock:
    if {blockcp.%player%} is equal to 1:
        teleport player to {%region at player%.%player%.blockcp}
    if {blockcp.%player%} is equal to 2:
        teleport player to {%region at player%.%player%.blockcp}
    if {blockcp.%player%} is not set:
        teleport player to {%region at player%.%player%.blockcp}

command /cp:
    trigger:
        if player do not have clock named "Checkpoint":
            give clock named "&l&e<<Checkpoint>>" to player

on sign change:
    line 1 is "air"
    set line 4 to "&f============"
    set line 1 to "&f============"
    set line 3 to "&e<<Rightclick>>"
    set line 2 to "&b<<CheckPoint>>"