「プレイヤーがブロックの採掘動作をしている最中かどうか」 の条件を書きたい。

on packet event play_client_block_dig:
    set {_a} to "PlayerDigTypes" pinfo 0 of event-packet
    set {_b} to Location pinfo 0 of event-packet
    set {_block} to block at location at {_b}
#限定したいブロックを変えたい場合はこの下のdirt blockという所を任意のブロックに書き換える
    if {_block} is dirt block:
        if "%{_a}%" is "START_DESTROY_BLOCK":
            set {digging.%event-player's uuid%} to true
        else if "%{_a}%" is "STOP_DESTROY_BLOCK" or "ABORT_DESTROY_BLOCK":
            set {digging.%event-player's uuid%} to false

every tick:
    loop all players:
        if {digging.%loop-player's uuid%} is true:
            broadcast "%loop-player% is digging!"

on packet event play_client_block_dig:
    set {_a} to "PlayerDigTypes" pinfo 0 of event-packet
    set {_b} to Location pinfo 0 of event-packet
    set {_block} to block at location at {_b}
#限定したいブロックを変えたい場合はこの下のdirt blockという所を任意のブロックに書き換える
    if {_block} is dirt block:
        if "%{_a}%" is "START_DESTROY_BLOCK":
            set {digging.%event-player's uuid%} to true
        else if "%{_a}%" is "STOP_DESTROY_BLOCK" or "ABORT_DESTROY_BLOCK":
            set {digging.%event-player's uuid%} to false

every tick:
    loop all players:
        if {digging.%loop-player's uuid%} is true:
            broadcast "%loop-player% is digging!"