A smart observer that will trigger if a predefined block is placed or removed.
Possible use case:
With a block in hand (eg, a log) right click the smart observer to set the observable block.
Plant a sapling of the same type in front of the observer, add bone meal to make it grow, when the tree is grown, the observer triggers.
From version 1.1 you can craft the Smart Observer:
To craft simply put a vanilla observer in your crafting window. You can convert them back and forth.
Known issues:
- It triggers on any block removed
