on drop:
    cancel event

on break:
    if gamemode of player is creative:
        stop
    if event-block is log:
        set {_log} to type of event-block
        wait a minute
        set event-block to {_log}
    if event-block is stone block or cobblestone or coal ore or iron ore or gold ore or diamond ore or lapis ore or redstone ore:
        wait a minute
        set {_random} to a random integer between 1 and 100
        if {_random} is between 1 and 55:
            set event-block to cobblestone
        if {_random} is between 56 and 79:
            set event-block to coal ore
        if {_random} is between 80 and 89:
            set event-block to iron ore
        if {_random} is between 90 and 93:
            set event-block to gold ore
        if {_random} is between 94 and 96:
            set event-block to lapis ore
        if {_random} is between 97 and 99:
            set event-block to redstone ore
        if {_random} is 100:
            set event-block to diamond ore