how could i detect if theres a block above a block?

[void light]

block above %block% is hopper

[onyx oriole]

https://skripthub.net/docs/?id=2053

[sly steeple]

block above event-block is hopper?

[onyx oriole]

https://tryitands.ee

[void light]

idk, what event are you using?

[sly steeple]

im not actually using event my bad

im using loop

to loop all blocks in radius

[void light]

could you show the code?

[sly steeple]

yeah

every 8 seconds:
    loop all players:
        loop all blocks in radius 13 around loop-player:
            if {placedrgens::Coal::%loop-player's uuid%::*} contains loop-block's location:
                set {_l} to block above loop-value-2
                drop 1 of {drops::NOTE1} 1 meters above {_l} without velocity
                chance of 2%:
                    drop 1 of {drops::gem} 1 meters above {_l} without velocity
                    stop         

[void light]

the block here is the loop-block

check if the block above that is hopper

[sly steeple]

any idea how? do i set a variable or just check if

[void light]

idk what're you trying to do with it?

[sly steeple]

i want to check if theres a hopper above {_l} of loop-block then it drops above the hopper