diff --git a/src/map_builders.rs b/src/map_builders.rs
new file mode 100644
index 0000000..4831ac9
--- /dev/null
+++ b/src/map_builders.rs
@@ -0,0 +1,64 @@
+mod bsp_dungeon;
+mod bsp_interior;
+mod cellular_automata;
+mod common;
+mod dla;
+mod drunkard;
+mod maze;
+mod prefab_builder;
+mod simple_map;
+mod voronoi;
+mod waveform_collapse;
+
+use crate::{Map, Position};
+use bsp_dungeon::BspDungeonBuilder;
+use bsp_interior::BspInteriorBuilder;
+use cellular_automata::CellularAutomataBuilder;
+use common::*;
+use dla::DLABuilder;
+use drunkard::DrunkardsWalkBuilder;
+use maze::MazeBuilder;
+use prefab_builder::PrefabBuilder;
+use simple_map::SimpleMapBuilder;
+use specs::prelude::*;
+use voronoi::VoronoiCellBuilder;
+use waveform_collapse::WaveformCollapseBuilder;
+
+pub trait MapBuilder {
+    fn get_map(&self) -> Map;
+    fn get_starting_position(&self) -> Position;
+    fn get_snapshot_history(&self) -> Vec<Map>;
+    fn build_map(&mut self);
+    fn spawn_entities(&mut self, ecs: &mut World);
+    fn take_snapshot(&mut self);
+}
+
+pub fn random_builder(new_depth: i32) -> Box<dyn MapBuilder> {
+    // let mut rng = rltk::RandomNumberGenerator::new();
+    // let mut result: Box<dyn MapBuilder> = match rng.roll_dice(1, 16) {
+    //     1 => Box::new(BspDungeonBuilder::new(new_depth)),
+    //     2 => Box::new(BspInteriorBuilder::new(new_depth)),
+    //     3 => Box::new(CellularAutomataBuilder::new(new_depth)),
+    //     4 => Box::new(DrunkardsWalkBuilder::open_area(new_depth)),
+    //     5 => Box::new(DrunkardsWalkBuilder::open_halls(new_depth)),
+    //     6 => Box::new(DrunkardsWalkBuilder::winding_passages(new_depth)),
+    //     7 => Box::new(DrunkardsWalkBuilder::fat_passages(new_depth)),
+    //     8 => Box::new(DrunkardsWalkBuilder::fearful_symmetry(new_depth)),
+    //     9 => Box::new(MazeBuilder::new(new_depth)),
+    //     10 => Box::new(DLABuilder::walk_inwards(new_depth)),
+    //     11 => Box::new(DLABuilder::walk_outwards(new_depth)),
+    //     12 => Box::new(DLABuilder::central_attractor(new_depth)),
+    //     13 => Box::new(DLABuilder::insectoid(new_depth)),
+    //     14 => Box::new(VoronoiCellBuilder::pythagoras(new_depth)),
+    //     15 => Box::new(VoronoiCellBuilder::manhattan(new_depth)),
+    //     _ => Box::new(SimpleMapBuilder::new(new_depth)),
+    // };
+    //
+    // if rng.roll_dice(1, 3) == 1 {
+    //     result = Box::new(WaveformCollapseBuilder::derived_map(new_depth, result));
+    // }
+    //
+    // result
+
+    Box::new(PrefabBuilder::new(new_depth))
+}
diff --git a/src/map_builders/mod.rs b/src/map_builders/mod.rs
deleted file mode 100644
index 561f7e1..0000000
--- a/src/map_builders/mod.rs
+++ /dev/null
@@ -1,62 +0,0 @@
-mod bsp_dungeon;
-mod bsp_interior;
-mod cellular_automata;
-mod common;
-mod dla;
-mod drunkard;
-mod maze;
-mod prefab_builder;
-mod simple_map;
-mod voronoi;
-mod waveform_collapse;
-
-use crate::{Map, Position};
-use bsp_dungeon::BspDungeonBuilder;
-use bsp_interior::BspInteriorBuilder;
-use cellular_automata::CellularAutomataBuilder;
-use common::*;
-use dla::DLABuilder;
-use drunkard::DrunkardsWalkBuilder;
-use maze::MazeBuilder;
-use prefab_builder::PrefabBuilder;
-use simple_map::SimpleMapBuilder;
-use specs::prelude::*;
-use voronoi::VoronoiCellBuilder;
-use waveform_collapse::WaveformCollapseBuilder;
-
-pub trait MapBuilder {
-    fn get_map(&self) -> Map;
-    fn get_starting_position(&self) -> Position;
-    fn get_snapshot_history(&self) -> Vec<Map>;
-    fn build_map(&mut self);
-    fn spawn_entities(&mut self, ecs: &mut World);
-    fn take_snapshot(&mut self);
-}
-
-pub fn random_builder(new_depth: i32) -> Box<dyn MapBuilder> {
-    let mut rng = rltk::RandomNumberGenerator::new();
-    let mut result: Box<dyn MapBuilder> = match rng.roll_dice(1, 16) {
-        1 => Box::new(BspDungeonBuilder::new(new_depth)),
-        2 => Box::new(BspInteriorBuilder::new(new_depth)),
-        3 => Box::new(CellularAutomataBuilder::new(new_depth)),
-        4 => Box::new(DrunkardsWalkBuilder::open_area(new_depth)),
-        5 => Box::new(DrunkardsWalkBuilder::open_halls(new_depth)),
-        6 => Box::new(DrunkardsWalkBuilder::winding_passages(new_depth)),
-        7 => Box::new(DrunkardsWalkBuilder::fat_passages(new_depth)),
-        8 => Box::new(DrunkardsWalkBuilder::fearful_symmetry(new_depth)),
-        9 => Box::new(MazeBuilder::new(new_depth)),
-        10 => Box::new(DLABuilder::walk_inwards(new_depth)),
-        11 => Box::new(DLABuilder::walk_outwards(new_depth)),
-        12 => Box::new(DLABuilder::central_attractor(new_depth)),
-        13 => Box::new(DLABuilder::insectoid(new_depth)),
-        14 => Box::new(VoronoiCellBuilder::pythagoras(new_depth)),
-        15 => Box::new(VoronoiCellBuilder::manhattan(new_depth)),
-        _ => Box::new(SimpleMapBuilder::new(new_depth)),
-    };
-
-    if rng.roll_dice(1, 3) == 1 {
-        result = Box::new(WaveformCollapseBuilder::derived_map(new_depth, result));
-    }
-
-    result
-}
diff --git a/src/map_builders/prefab_builder/mod.rs b/src/map_builders/prefab_builder.rs
similarity index 100%
rename from src/map_builders/prefab_builder/mod.rs
rename to src/map_builders/prefab_builder.rs
diff --git a/src/map_builders/waveform_collapse/mod.rs b/src/map_builders/waveform_collapse.rs
similarity index 100%
rename from src/map_builders/waveform_collapse/mod.rs
rename to src/map_builders/waveform_collapse.rs