I Need help tho create a sculk sensor!

I making a mod that give the sculk blocks to minecraft 1.12.2, but i need help for make the sculk sensor

because i can't find some procedures to help the block updates with a distance of blocks, tho the acvated version

act like a redstone block, and etc this is the list of my objectives for the sculk sensor

1 > Make the block change he state tho the acvated, but with the entity was a 9 blocks distance limit to actvated the block

2 > Make the block change he state with entities nearby

3> make the Actvated version act like a redstone block, and actvate pistons, redstone dust, and etc

Someone please can help me?