diff --git a/src/app.rs b/src/app.rs
index 392b46a..8c0a718 100644
--- a/src/app.rs
+++ b/src/app.rs
@@ -1,29 +1,17 @@
 use crate::{
-    command::CmdVec,
-    debug::{self, DebugState},
-    game::GameState,
-    input::Input,
-    res::Res,
-    CliArgs,
+    command::CmdVec, debug::{self, DebugState},
+    game::GameState, input::Input, res::Res, CliArgs,
 };
-
 use egui_sfml::SfEgui;
 use sfml::graphics::{RenderTexture, RenderWindow};
 /// Application level state (includes game and ui state, etc.)
 pub(crate) struct App {
-    pub(crate) rw: RenderWindow,
-    pub(crate) should_quit: bool,
     pub(crate) game: GameState,
     pub(crate) res: Res,
     pub(crate) sf_egui: SfEgui,
-    pub(crate) input: Input,
     pub(crate) debug: DebugState,
     /// Integer scale for rendering the game
     pub(crate) scale: u8,
-    /// RenderTexture for rendering the game at its native resolution
-    pub(crate) rt: RenderTexture,
-    /// Light map overlay, blended together with the non-lighted version of the scene
-    pub(crate) light_map: RenderTexture,
     pub(crate) cmdvec: CmdVec,
 }
 impl App {
diff --git a/src/cmdline.rs b/src/cmdline.rs
index a414cbc..387e687 100644
--- a/src/cmdline.rs
+++ b/src/cmdline.rs
@@ -1,15 +1,2 @@
 use clap::Parser;
 use crate::{command::Cmd, math::WorldPos};
-#[derive(Parser)]
-pub(crate) enum CmdLine {
-    Quit,
-    Freecam,
-    Clear,
-    Tp(Tp),
-    Spawn,
-    Give(Give),
-}
-#[derive(Parser)]
-pub(crate) struct Tp {}
-#[derive(Parser)]
-pub(crate) struct Give {}
diff --git a/src/debug.rs b/src/debug.rs
index 0528869..0521081 100644
--- a/src/debug.rs
+++ b/src/debug.rs
@@ -5,17 +5,7 @@ use crate::{
 use egui_inspect::{derive::Inspect, inspect};
 use sfml::audio::SoundSource;
 #[derive(Default, Debug, Inspect)]
-pub(crate) struct DebugState {
-    pub(crate) panel: bool,
-    pub(crate) freecam: bool,
-    pub(crate) tiledb_edit: TileDbEdit,
-    pub(crate) show_atlas: bool,
-    pub(crate) console: Console,
-}
-#[derive(Default, Debug, Inspect)]
-pub(crate) struct Console {
-    pub(crate) show: bool,
-}
+pub(crate) struct DebugState {}
 fn debug_panel_ui(
     mut debug: &mut DebugState,
     mut game: &mut GameState,
@@ -23,26 +13,36 @@ fn debug_panel_ui(
     res: &mut Res,
     mut scale: &mut u8,
 ) {
-    egui::Window::new("Debug (F12)").show(ctx, |ui| {
-        egui::ScrollArea::both()
-            .id_source("insp_scroll")
-            .max_height(240.)
-            .max_width(340.0)
-            .show(ui, |ui| {
-                inspect! {
-                    ui, scale, game, debug
-                }
-            });
-
-        egui::ScrollArea::vertical().show(ui, |ui| {
-            gamedebug_core::for_each_imm(|info| match info {
-                gamedebug_core::Info::Msg(msg) => {
-                    ui.label(msg);
-                }
-                gamedebug_core::Info::Rect(_, _, _, _, _) => todo!(),
-            });
-        });
-    });
+    egui::Window::new("Debug (F12)")
+        .show(
+            ctx,
+            |ui| {
+                egui::ScrollArea::both()
+                    .id_source("insp_scroll")
+                    .max_height(240.)
+                    .max_width(340.0)
+                    .show(
+                        ui,
+                        |ui| {
+                            inspect! {
+                                ui, scale, game, debug
+                            }
+                        },
+                    );
+                egui::ScrollArea::vertical()
+                    .show(
+                        ui,
+                        |ui| {
+                            gamedebug_core::for_each_imm(|info| match info {
+                                gamedebug_core::Info::Msg(msg) => {
+                                    ui.label(msg);
+                                }
+                                gamedebug_core::Info::Rect(_, _, _, _, _) => todo!(),
+                            });
+                        },
+                    );
+            },
+        );
 }
 pub(crate) fn do_debug_ui(
     ctx: &egui::Context,
@@ -54,6 +54,3 @@ pub(crate) fn do_debug_ui(
 ) {
     debug_panel_ui(debug, game, ctx, res, scale);
 }
-fn console_ui(ctx: &egui::Context, debug: &mut DebugState, cmd: &mut CmdVec) {
-    loop {}
-}
diff --git a/src/game.rs b/src/game.rs
index 8ec8e75..45fb970 100644
--- a/src/game.rs
+++ b/src/game.rs
@@ -20,43 +20,5 @@ use crate::{
 #[derivative(Debug)]
 pub(crate) struct GameState {
     pub(crate) camera_offset: WorldPos,
-    pub(crate) world: World,
     pub(crate) tile_db: TileDb,
 }
-#[derive(PartialEq, Eq, Clone, Copy, Debug, Inspect)]
-pub(crate) enum Biome {
-    Surface,
-    Underground,
-}
-impl GameState {
-    pub(crate) fn update(&mut self, input: &Input) {
-        loop {}
-    }
-    pub(crate) fn draw_world(&mut self, rt: &mut RenderTexture, res: &mut Res) {
-        loop {}
-    }
-    pub(crate) fn draw_entities(&mut self, rt: &mut RenderTexture) {
-        loop {}
-    }
-    pub(crate) fn draw_ui(
-        &mut self,
-        rt: &mut RenderTexture,
-        res: &Res,
-        ui_dims: Vector2f,
-    ) {
-        loop {}
-    }
-    pub(crate) fn light_pass(&mut self, lightmap: &mut RenderTexture, res: &Res) {
-        loop {}
-    }
-    pub(crate) fn new(world_name: String, path: PathBuf, res: &Res) -> GameState {
-        loop {}
-    }
-}
-pub(crate) fn for_each_tile_on_screen(
-    camera_offset: WorldPos,
-    rt_size: Vector2u,
-    mut f: impl FnMut(TilePos, ScreenVec),
-) {
-    loop {}
-}
diff --git a/src/graphics.rs b/src/graphics.rs
index 3adede8..fdb31fd 100644
--- a/src/graphics.rs
+++ b/src/graphics.rs
@@ -5,12 +5,8 @@ use sfml::{
 };
 use sfml_xt::graphics::RenderWindowExt;
 use crate::math::FPS_TARGET;
-pub(crate) struct ScreenRes {}
 #[derive(Default, Clone, Copy, Debug, Inspect, Serialize, Deserialize)]
-pub struct ScreenVec {
-    pub(crate) x: ScreenSc,
-    pub(crate) y: ScreenSc,
-}
+pub(crate) struct ScreenVec {}
 /// Screen position/offset scalar
 /// We assume this game won't be played above 32767*32767 resolution
 pub(crate) type ScreenSc = i16;
diff --git a/src/input.rs b/src/input.rs
index eeb27dc..f3b3b22 100644
--- a/src/input.rs
+++ b/src/input.rs
@@ -3,23 +3,3 @@ use sfml::window::{mouse, Event, Key};
 use crate::graphics::ScreenVec;
 #[derive(Default, Debug)]
 pub(crate) struct Input {}
-impl Input {
-    pub(crate) fn update_from_event(
-        &mut self,
-        ev: &Event,
-        egui_kbd: bool,
-        egui_ptr: bool,
-    ) {
-        loop {}
-    }
-    /// Pressed event should be cleared every frame
-    pub(crate) fn clear_pressed(&mut self) {
-        loop {}
-    }
-    pub(crate) fn down(&self, key: Key) -> bool {
-        loop {}
-    }
-    pub(crate) fn pressed(&self, key: Key) -> bool {
-        loop {}
-    }
-}
diff --git a/src/inventory.rs b/src/inventory.rs
index 07cbe09..254982d 100644
--- a/src/inventory.rs
+++ b/src/inventory.rs
@@ -1,24 +1,6 @@
 use egui_inspect::derive::Inspect;
 use crate::{math::IntRect, tiles::{BgTileId, FgTileId, MidTileId}};
-/// We won't have more than 65535 different items
-pub(crate) type ItemId = u16;
-/// Inventory slot
-#[derive(Debug, Inspect)]
-pub(crate) struct Slot {}
 #[derive(Debug, Inspect)]
 pub(crate) struct Inventory {}
-#[derive(Debug, Inspect, PartialEq)]
-pub(crate) enum TileLayer {
-    Bg,
-    Mid,
-    Fg,
-}
-#[derive(Debug)]
-pub(crate) enum UseAction {
-    PlaceBgTile {},
-    PlaceMidTile {},
-    PlaceFgTile {},
-    RemoveTile {},
-}
 #[derive(Debug, Inspect)]
 pub(crate) struct ItemDb {}
diff --git a/src/main.rs b/src/main.rs
index 6b1c5a3..9ae6769 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,5 +1,4 @@
 mod app;
-mod cmdline;
 mod command;
 mod debug;
 mod game;
@@ -9,7 +8,6 @@ mod inventory;
 mod math;
 mod player;
 mod res;
-mod stringfmt;
 mod texture_atlas;
 mod tiles;
 mod world;
diff --git a/src/math.rs b/src/math.rs
index 605f454..4905ffa 100644
--- a/src/math.rs
+++ b/src/math.rs
@@ -11,47 +11,13 @@ pub(crate) struct WorldPos {
 }
 /// Tile size in pixels
 pub(crate) const TILE_SIZE: u8 = 32;
-/// Pixels per meter.
-pub(crate) const PX_PER_M: f32 = TILE_SIZE as f32 * 2.;
-/// Meters per pixel
-pub(crate) const M_PER_PX: f32 = 1. / PX_PER_M;
 pub(crate) const FPS_TARGET: u8 = 60;
-pub(crate) fn px_per_frame_to_km_h(px_per_frame: f32) -> f32 {
-    loop {}
-}
-/// World extent in tiles. Roughly 50km*50km.
-pub(crate) const WORLD_EXTENT: TPosSc = 100_000;
-impl WorldPos {
-    pub(crate) fn tile_pos(&self) -> TilePos {
-        loop {}
-    }
-    /// Horizontal center of the world
-    pub(crate) const CENTER: WPosSc = (WORLD_EXTENT / 2) * TILE_SIZE as WPosSc;
-    /// Vertical surface level.
-    /// You can build 10 km high.
-    pub(crate) const SURFACE: WPosSc = 20_000 * TILE_SIZE as WPosSc;
-    pub(crate) const SURFACE_CENTER: Self = Self {
-        x: Self::CENTER,
-        y: Self::SURFACE,
-    };
-    pub(crate) fn to_s2dc(self) -> s2dc::Vec2 {
-        loop {}
-    }
-}
 pub(crate) fn wp_to_tp(wp: WPosSc) -> TPosSc {
     loop {}
 }
-pub(crate) fn center_offset<N: From<u8> + Copy + Signed>(xw: N, yw: N) -> N {
-    loop {}
-}
 /// A smooth triangle-wave like transform of the input value, oscillating between 0 and the ceiling.
 pub(crate) fn smoothwave<T: Num + From<u8> + PartialOrd + Copy>(input: T, max: T) -> T {
     loop {}
 }
 #[derive(Serialize, Deserialize, Debug, Inspect, Default, Clone, Copy)]
-pub struct IntRect {
-    pub(crate) x: i32,
-    pub(crate) y: i32,
-    pub(crate) w: i32,
-    pub(crate) h: i32,
-}
+pub(crate) struct IntRect {}
diff --git a/src/player.rs b/src/player.rs
index 6742ca8..871b910 100644
--- a/src/player.rs
+++ b/src/player.rs
@@ -7,30 +7,4 @@ use crate::{
     world::{TPosSc, TilePos},
 };
 #[derive(Debug, Inspect, Serialize, Deserialize)]
-pub(crate) struct Player {
-    #[inspect_with(inspect_mobile_entity)]
-    pub(crate) col_en: MobileEntity,
-    pub(crate) vspeed: f32,
-    pub(crate) hspeed: f32,
-}
-fn inspect_mobile_entity(en: &mut MobileEntity, ui: &mut egui::Ui, _id_src: u64) {
-    loop {}
-}
-impl Player {
-    pub(crate) fn new_at(pos: WorldPos) -> Self {
-        loop {}
-    }
-    #[allow(dead_code)]
-    pub(crate) fn center_tp(&self) -> TilePos {
-        loop {}
-    }
-    pub(crate) fn can_jump(&self) -> bool {
-        loop {}
-    }
-    pub(crate) fn feet_y(&self) -> i32 {
-        loop {}
-    }
-    pub(crate) fn save(&self, path: &Path) {
-        loop {}
-    }
-}
+pub(crate) struct Player {}
diff --git a/src/res.rs b/src/res.rs
index df982cc..f142179 100644
--- a/src/res.rs
+++ b/src/res.rs
@@ -1,7 +1,4 @@
 use sfml::audio::Music;
 use crate::texture_atlas::AtlasBundle;
 #[derive(Debug)]
-pub(crate) struct Res {
-    pub(crate) atlas: AtlasBundle,
-    pub(crate) surf_music: Music<'static>,
-}
+pub(crate) struct Res {}
diff --git a/src/stringfmt.rs b/src/stringfmt.rs
index a1c1c32..5350fd7 100644
--- a/src/stringfmt.rs
+++ b/src/stringfmt.rs
@@ -1,8 +1,2 @@
 use std::fmt;
 use crate::math::M_PER_PX;
-pub(crate) struct LengthDisp(pub f32);
-impl fmt::Display for LengthDisp {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        loop {}
-    }
-}
diff --git a/src/texture_atlas.rs b/src/texture_atlas.rs
index 8bf66a9..a06b78b 100644
--- a/src/texture_atlas.rs
+++ b/src/texture_atlas.rs
@@ -4,12 +4,4 @@ use sfml::{graphics::Texture, SfBox};
 use texture_packer::{texture::Texture as _, TexturePacker, TexturePackerConfig};
 pub(crate) type RectMap = HashMap<String, IntRect>;
 #[derive(Debug)]
-pub(crate) struct AtlasBundle {
-    pub(crate) tex: SfBox<Texture>,
-    pub(crate) rects: RectMap,
-}
-impl AtlasBundle {
-    pub(crate) fn new() -> anyhow::Result<Self> {
-        loop {}
-    }
-}
+pub(crate) struct AtlasBundle {}
diff --git a/src/tiles/tiledb_edit_ui.rs b/src/tiles/tiledb_edit_ui.rs
index f48acd9..b448162 100644
--- a/src/tiles/tiledb_edit_ui.rs
+++ b/src/tiles/tiledb_edit_ui.rs
@@ -6,9 +6,4 @@ use crate::{
 };
 #[derive(Debug, Default, Inspect)]
 pub(crate) struct TileDbEdit {}
-impl TileDbEdit {
-    pub(crate) fn ui(&mut self, ctx: &egui::Context, tile_db: &mut TileDb) {
-        loop {}
-    }
-}
 use super::{Bg, Fg, Mid, TileDb, TileDef, TileLayer, DEFAULT_TILE_BB};
diff --git a/src/world.rs b/src/world.rs
index 996f5d7..75f4245 100644
--- a/src/world.rs
+++ b/src/world.rs
@@ -12,33 +12,7 @@ use self::serialization::save_chunk;
 #[derive(Hash, PartialEq, Eq, Debug, Clone, Copy, Inspect)]
 pub(crate) struct ChunkPos {}
 #[derive(Debug, Inspect)]
-pub(crate) struct World {
-    pub(crate) player: Player,
-}
-impl World {
-    pub(crate) fn new(spawn_point: WorldPos, name: &str, path: PathBuf) -> Self {
-        loop {}
-    }
-    /// Get mutable access to the tile at `pos`.
-    ///
-    /// Loads or generates the containing chunk if necessary.
-    pub(crate) fn tile_at_mut(
-        &mut self,
-        pos: TilePos,
-        worldgen: &Worldgen,
-    ) -> &mut Tile {
-        loop {}
-    }
-    pub(crate) fn save(&self) {
-        loop {}
-    }
-    pub(crate) fn save_meta(&self) {
-        loop {}
-    }
-    pub(crate) fn save_chunks(&self) {
-        loop {}
-    }
-}
+pub(crate) struct World {}
 fn loc_byte_idx_xy(x: u8, y: u8) -> usize {
     loop {}
 }
@@ -55,10 +29,6 @@ const CHUNK_BYTES: usize = CHUNK_N_TILES * TILE_BYTES;
 const TILE_BYTES: usize = 3 * 2;
 #[derive(Debug, Clone, Copy)]
 pub(crate) struct TilePos {}
-#[derive(Debug, PartialEq, Eq, Clone, Copy)]
-pub(crate) struct ChunkLocalTilePos {}
-/// Chunk-local tile position scalar. Supports up to 256 tiles per chunk.
-type ChkLocalTPosSc = u8;
 pub(crate) type TPosSc = u32;
 pub(crate) const CHUNK_EXTENT: u16 = 128;
 const CHUNK_N_TILES: usize = CHUNK_EXTENT as usize * CHUNK_EXTENT as usize;