Collect all worldgen code into the worldgen module

Author: patowen

common/src/lib.rs

@@ -26,10 +26,8 @@ mod margins;
 pub mod math;
 pub mod node;
 pub mod peer_traverser;
-mod plane;
 pub mod proto;
 mod sim_config;
-pub mod terraingen;
 pub mod traversal;
 pub mod voxel_math;
 pub mod world;

common/src/worldgen.rs renamed to common/src/worldgen/mod.rs

@@ -1,19 +1,21 @@
 use horosphere::{HorosphereChunk, HorosphereNode};
+use plane::Plane;
 use rand::{Rng, SeedableRng, distr::Uniform};
 use rand_distr::Normal;
+use terraingen::VoronoiInfo;
 
 use crate::{
     dodeca::{Side, Vertex},
     graph::{Graph, NodeId},
     margins,
     math::{self, MVector},
     node::{ChunkId, VoxelData},
-    plane::Plane,
-    terraingen::VoronoiInfo,
     world::Material,
 };
 
 mod horosphere;
+mod plane;
+mod terraingen;
 
 #[derive(Clone, Copy, PartialEq, Debug)]
 enum NodeStateKind {