how to make a block do a procedure next to a specific block

Use event trigger procedure "Update Tick", then in the procedure check for surrounding blocks' type, then explode if match.

I don't use a site that uploads pics.

In your workspace:

1. Create a new block
2. Define block properties ->  define particles -> define tile entity -> define block event procedures
3. in the define block event procedures, create a new proc for "Update Tick"
4. in the new proc, use "Get block at x, y, z", "is block of material type" & "if else" procedures to scan for adjacent blocks and "Explode at x,y,z with power n" if the block matches type

You need to check adjacent blocks, not your block's position.

Check blocks (x-1,y, z), (x,y+1,z), (x,y,z-1), (x+1,y,z), etc. Basically the 6 blocks surrounding your block.

Hey, i have been trying to do the same but since the "is material type" block got removed i though it would work like this tho it doesn't. Any help?                                                                                  

Nvm i figured it out lol