The druid likes different colored dyes and uses them along with water to grow sand into dirt, and dirt into grass
After handing the druid some dye and water from a bucket or from nearby water sources it will then wander around regrowing the land,occasionally it will also plant flowers
It is found in its hut all across the world and likes to stay around the druid heart which spawns in its hut, the heart encourages crop growth(coming in 1.0.3) and provides a small regenerative effect
Structures in versions above 1.12.2 are WIP and the druid spawns in naturally
This mod is not to be reposted or copied anywhere without my permission
That being said all my code is available for reference and can be used in your own program, just dont rip it off in full