on break of stone:
    if {challenge::%player%} is not set:
        stop
    add 1 to {challenge::progress::%player%}
    send "keep going..." to player
    if {challenge::progress::%player%} >= 10:
        send "you did it!" to player
        give 1 diamond to player
        delete {challenge::%player%}
        delete {challenge::progress::%player%}

command /challenge:
    trigger:
        set {challenge::%player%} to true
        set {challenge::progress::%player%} to 0
        send "mine 10 stone in 30s" to player
        wait 30 seconds
        if {challenge::%player%} is set:
            send "too slow" to player
            delete {challenge::%player%}
            delete {challenge::progress::%player%}

command /challenge:
    trigger:
        send "mine 10 stone in 30s" to player
        listen for block break where event-block is stone:
            countdown: 30 seconds
            triggers: 10
            on trigger:
                send "keep going... (%remaining triggers% left)" to event-player
            on completion:
                send "you did it!" to event-player
                give 1 diamond to event-player
            on timeout:
                send "too slow!" to event-player