Generate Biomes (#610)

* Populate biomes

* actually fix multi noise sampler

* actually they are all pass-through

* fix serde error

* prepare things

* implement surface rules

* fix max_y

* fix terrain gen

* make surface rules work

* fix wrong biome coords

* refactor height estimator to its own struct

* implement surface estimation for surface rules

* fix surface gen

* some carve work

* fix conflicts

* more biomes work

* fix biome map

* refactor biome lookups

* add unit tests

* change from_block to from_chunk

* not only lushcaves anymore

* add more unit tests

* add unit test

* fix multi noise

* Update proto_chunk.rs

* fix biome map access

* test badlands impl

* fix badlands

* fix some values

* make it compile

* Fix bug in get_enclosing_parameters (#641)

* add badlands pillar and icebergs

* fix clippy

* fix clippy in test

* Update README.md

---------

Co-authored-by: kralverde <[email protected]>
Co-authored-by: 4lve <[email protected]>

Author: 3 people

README.md

@@ -14,7 +14,7 @@
 and customizable experience. It prioritizes performance and player enjoyment while adhering to the core mechanics of the game.
 <div align="center">
 
-![2025-03-0615-45-42chunkloading](https://github.com/user-attachments/assets/c29096c7-230d-4093-b139-38ac339f38cc)
+![gif](https://github.com/user-attachments/assets/eb50fd34-8fd4-4ded-8a86-6ab13804f99a)
 
 </div>
 
@@ -27,9 +27,7 @@ and customizable experience. It prioritizes performance and player enjoyment whi
 - **Extensibility**: Provides a foundation for plugin development.
 
 > [!IMPORTANT]
-> Pumpkin is currently under heavy development. Biomes are currently not implemented, but the terrain noise matches Vanilla.
-![image](https://github.com/user-attachments/assets/aa24941f-216c-47b8-830c-ed5d7bb9ebca)
-
+> Pumpkin is currently under heavy development
 
 ## Features
 
@@ -62,7 +60,7 @@ and customizable experience. It prioritizes performance and player enjoyment whi
   - [x] Chunk Saving (Vanilla, Linear)
   - [ ] Redstone
   - [ ] Liquid Physics
-  - [ ] Biomes
+  - [x] Biomes
   - [ ] Vegetation
 - Player
   - [x] Skins