Cancel block placing if its on tall grass

[lukep999]

Hi,
My idea is that when a player places a block, it checks whether the space they're placing the block is air or not. For example, if there is tall grass on the ground and a player places a block there, it will remove the tall grass and replace it with the block. I would like it so players are not able to place blocks on tall grass. My addons are SkQuery, SkRayfall, Skellett and Umbaka.

Thank you.

 

[ShaneBee]

Not the best because i'm a beginner, but this should work:

on place:
    loop blocks in radius 1 of block:
        if loop-blocks is 31:1 or 175:2:
            cancel event
            message "&c&lHey! &r&7Sorry, but you can't place blocks near grass!"