Check difficulty procedure block

Issue description

A block that checks if the difficulty is peaceful can be useful when making procedures that summon monsters.

Issue comments

Submitted by Klemen on Mon, 09/24/2018 - 11:49

We will consider adding this in future updates. Nice idea!

Can you add in the same time the same thing but for for all difficulty please ?

Submitted by Klemen on Thu, 11/01/2018 - 17:32

This feature will be added in 1.8.1.