Automated tile placement test

I'm working now on a system in which placed tiles adapt their type to nearby tiles. Makes fun to build small lands. :) I will contuinue with this.

To the project:

At the moment it's more a kind of learning experience to me how city-builders work. But I also want to do something with it.
I have the idea that every tile is a type of a specific biome like nature, water, rock and maybe later human, desert or ice. And you place these tiles to grow a kind of world map.
Each type will be later maybe effected by the other types. Like a nature tile that is surrounded by only desert tiles becomes an oasis or a human tile that is surrounded by only water tiles becomes a ship.

I will try these things out and post them later here too.
The colored tiles are currently only placeholders to visualize how the autotiling works.

At the end it could become a very relaxing building game.