diff --git a/src/bin/fail_tetris.rs b/src/bin/fail_tetris.rs
new file mode 100644
index 0000000..987ca2e
--- /dev/null
+++ b/src/bin/fail_tetris.rs
@@ -0,0 +1,251 @@
+use bevy::window::PrimaryWindow;
+use bevy::{prelude::*, window::WindowResolution};
+use std::fmt::{self, Display, Formatter};
+use std::ops::{Add, Sub};
+
+use glite::debug_plugin;
+
+#[cfg_attr(feature = "debug", derive(bevy_inspector_egui::InspectorOptions))]
+#[derive(Component, Debug, Default, Copy, Clone, Eq, PartialEq, Reflect)]
+struct Position {
+    pub x: u32,
+    pub y: u32,
+    pub z: u32, // render order
+}
+
+#[derive(Component, Debug, Reflect)]
+struct Size {
+    width: f32,
+    height: f32,
+}
+
+impl Size {
+    pub fn square(x: f32) -> Self {
+        Self {
+            width: x,
+            height: x,
+        }
+    }
+}
+
+fn post_scale_tiles(
+    window: Single<&Window>,
+    matrix: Res<Matrix>,
+    mut q: Query<(&Size, &mut Transform), With<Tile>>,
+) {
+    for (sprite_size, mut transform) in q.iter_mut() {
+        transform.scale = Vec3::new(
+            sprite_size.width / matrix.width as f32 * window.width(),
+            sprite_size.height / matrix.height as f32 * window.height(),
+            1.0,
+        );
+    }
+}
+
+fn post_translate_tiles(
+    window: Single<&Window>,
+    matrix: Res<Matrix>,
+    mut q: Query<(&Position, &mut Transform), With<Tile>>,
+) {
+    // We subtract half the window width because our coordinate system starts at the bottom left, and
+    // Translation starts from the center. We then add half the size of a single tile, because we want
+    // our sprites bottom left corner to be at the bottom left of a tile, not the center.
+    fn convert(pos: f32, bound_window: f32, bound_game: f32) -> f32 {
+        let tile_size = bound_window / bound_game;
+        pos / bound_game * bound_window - (bound_window / 2.) + (tile_size / 2.)
+    }
+
+    for (pos, mut transform) in q.iter_mut() {
+        transform.translation = Vec3::new(
+            convert(pos.x as f32, window.width(), matrix.width as f32),
+            convert(pos.y as f32, window.height(), matrix.height as f32),
+            pos.z as f32,
+        );
+    }
+}
+
+fn translate_tetrominos(
+    tetrominos: Query<(&Tetromino, &mut Children)>,
+    mut positions: Query<&mut Position, With<Tile>>,
+) {
+    for (t, children) in tetrominos.iter() {
+        for child in children.iter() {
+            let mut p = positions.get_mut(*child).unwrap();
+            p.x += t.pos.x;
+            p.y += t.pos.y;
+        }
+    }
+}
+
+#[derive(Component, Debug, Clone, Reflect)]
+struct TetrominoKind([[u32; 2]; 4]);
+
+const BRICK_I: TetrominoKind = TetrominoKind([[0, 0], [1, 0], [2, 0], [3, 0]]);
+const BRICK_J: TetrominoKind = TetrominoKind([[0, 0], [1, 0], [2, 0], [2, 1]]);
+const BRICK_L: TetrominoKind = TetrominoKind([[0, 0], [1, 0], [2, 0], [0, 1]]);
+const BRICK_O: TetrominoKind = TetrominoKind([[0, 0], [1, 0], [0, 1], [1, 1]]);
+const BRICK_S: TetrominoKind = TetrominoKind([[0, 0], [1, 0], [1, 1], [2, 1]]);
+const BRICK_T: TetrominoKind = TetrominoKind([[0, 0], [1, 0], [2, 0], [1, 1]]);
+const BRICK_Z: TetrominoKind = TetrominoKind([[0, 1], [1, 1], [1, 0], [2, 0]]);
+
+enum RenderLayer {
+    Background = 0,
+    Brick = 1,
+}
+
+#[derive(Component, Debug)]
+struct Tile;
+
+#[derive(Bundle, Debug)]
+struct TileBundle {
+    position: Position,
+    size: Size,
+    sprite: Sprite,
+    tile: Tile,
+}
+
+fn spawn_tile(commands: &mut Commands, color: Color, size: f32, position: Position) -> Entity {
+    commands
+        .spawn(TileBundle {
+            position,
+            size: Size::square(size),
+            sprite: Sprite {
+                color,
+                ..Default::default()
+            },
+            tile: Tile,
+        })
+        .id()
+}
+
+#[derive(Component, Reflect)]
+struct Tetromino {
+    pos: Position,
+    kind: TetrominoKind,
+}
+
+fn spawn_tetromino(commands: &mut Commands, kind: TetrominoKind, x: u32, y: u32) {
+    let tetromino = commands
+        .spawn(Tetromino {
+            pos: Position { x, y, z: 0 },
+            kind: kind.clone(),
+        })
+        .insert((Transform::default(), Visibility::default()))
+        .id();
+
+    for coord in kind.0 {
+        let e = spawn_tile(
+            commands,
+            Color::srgb(0.3, 0.3, 0.8),
+            0.9,
+            Position {
+                x: x + coord[0],
+                y: y + coord[1],
+                z: RenderLayer::Brick as u32,
+            },
+        );
+        commands.entity(e).set_parent(tetromino);
+    }
+}
+
+fn main() {
+    let mut app = App::new();
+    app.add_plugins(DefaultPlugins.set(WindowPlugin {
+        primary_window: Some(Window {
+            title: "Tetris".to_string(),
+            ..default()
+        }),
+        ..default()
+    }));
+
+    app.add_systems(
+        Startup,
+        (init_singletons, init_window, init_tile_grid).chain(),
+    )
+    .add_systems(
+        PostUpdate,
+        (translate_tetrominos, post_scale_tiles, post_translate_tiles).chain(),
+    );
+
+    app.add_plugins(debug_plugin::debug_plugin);
+
+    app.register_type::<Position>();
+    app.register_type::<Tetromino>();
+    app.register_type::<Size>();
+
+    // Run the app
+    app.run();
+}
+
+#[derive(Resource)]
+struct Score(u32);
+
+#[derive(Resource, Copy, Clone)]
+struct Matrix {
+    width: u32,
+    height: u32,
+}
+
+fn init_singletons(mut commands: Commands) {
+    let matrix = Matrix {
+        height: 15,
+        width: 15,
+    };
+    commands.insert_resource(Score(0));
+    commands.insert_resource(matrix);
+
+    commands.spawn(Camera2d {});
+}
+
+fn init_window(matrix: Res<Matrix>, mut window: Single<&mut Window>) {
+    const SCALE_FACTOR: f32 = 77.;
+
+    window.resolution.set(
+        matrix.width as f32 * SCALE_FACTOR,
+        matrix.height as f32 * SCALE_FACTOR,
+    );
+}
+
+#[derive(Component)]
+struct Grid;
+
+fn init_tile_grid(mut commands: Commands, matrix: Res<Matrix>) {
+    let grid = commands
+        .spawn(Grid)
+        .insert(Name::new("Background Grid"))
+        .insert((Transform::default(), Visibility::default()))
+        .id();
+
+    for y in 0..matrix.height {
+        for x in 0..matrix.width {
+            let color = match (y + x) % 2 == 0 {
+                true => Color::srgb(0.5, 0.5, 0.5),
+                false => Color::srgb(0.55, 0.55, 0.55),
+            };
+            let e = spawn_tile(
+                &mut commands,
+                color,
+                1.0,
+                Position {
+                    x,
+                    y,
+                    z: RenderLayer::Background as u32,
+                },
+            );
+            commands.entity(e).set_parent(grid);
+        }
+    }
+    test_render_all_tetrominos(commands);
+}
+
+fn test_render_all_tetrominos(mut commands: Commands) {
+    spawn_tetromino(&mut commands, BRICK_I, 0, 0);
+    spawn_tetromino(&mut commands, BRICK_T, 4, 0);
+    spawn_tetromino(&mut commands, BRICK_J, 8, 0);
+    spawn_tetromino(&mut commands, BRICK_L, 12, 0);
+
+    spawn_tetromino(&mut commands, BRICK_O, 0, 4);
+    spawn_tetromino(&mut commands, BRICK_S, 4, 4);
+    spawn_tetromino(&mut commands, BRICK_Z, 8, 4);
+    spawn_tetromino(&mut commands, BRICK_J, 12, 4);
+}
diff --git a/src/bin/tetris.rs b/src/bin/tetris.rs
index 987ca2e..c89b901 100644
--- a/src/bin/tetris.rs
+++ b/src/bin/tetris.rs
@@ -1,251 +1,3 @@
-use bevy::window::PrimaryWindow;
-use bevy::{prelude::*, window::WindowResolution};
-use std::fmt::{self, Display, Formatter};
-use std::ops::{Add, Sub};
-
-use glite::debug_plugin;
-
-#[cfg_attr(feature = "debug", derive(bevy_inspector_egui::InspectorOptions))]
-#[derive(Component, Debug, Default, Copy, Clone, Eq, PartialEq, Reflect)]
-struct Position {
-    pub x: u32,
-    pub y: u32,
-    pub z: u32, // render order
-}
-
-#[derive(Component, Debug, Reflect)]
-struct Size {
-    width: f32,
-    height: f32,
-}
-
-impl Size {
-    pub fn square(x: f32) -> Self {
-        Self {
-            width: x,
-            height: x,
-        }
-    }
-}
-
-fn post_scale_tiles(
-    window: Single<&Window>,
-    matrix: Res<Matrix>,
-    mut q: Query<(&Size, &mut Transform), With<Tile>>,
-) {
-    for (sprite_size, mut transform) in q.iter_mut() {
-        transform.scale = Vec3::new(
-            sprite_size.width / matrix.width as f32 * window.width(),
-            sprite_size.height / matrix.height as f32 * window.height(),
-            1.0,
-        );
-    }
-}
-
-fn post_translate_tiles(
-    window: Single<&Window>,
-    matrix: Res<Matrix>,
-    mut q: Query<(&Position, &mut Transform), With<Tile>>,
-) {
-    // We subtract half the window width because our coordinate system starts at the bottom left, and
-    // Translation starts from the center. We then add half the size of a single tile, because we want
-    // our sprites bottom left corner to be at the bottom left of a tile, not the center.
-    fn convert(pos: f32, bound_window: f32, bound_game: f32) -> f32 {
-        let tile_size = bound_window / bound_game;
-        pos / bound_game * bound_window - (bound_window / 2.) + (tile_size / 2.)
-    }
-
-    for (pos, mut transform) in q.iter_mut() {
-        transform.translation = Vec3::new(
-            convert(pos.x as f32, window.width(), matrix.width as f32),
-            convert(pos.y as f32, window.height(), matrix.height as f32),
-            pos.z as f32,
-        );
-    }
-}
-
-fn translate_tetrominos(
-    tetrominos: Query<(&Tetromino, &mut Children)>,
-    mut positions: Query<&mut Position, With<Tile>>,
-) {
-    for (t, children) in tetrominos.iter() {
-        for child in children.iter() {
-            let mut p = positions.get_mut(*child).unwrap();
-            p.x += t.pos.x;
-            p.y += t.pos.y;
-        }
-    }
-}
-
-#[derive(Component, Debug, Clone, Reflect)]
-struct TetrominoKind([[u32; 2]; 4]);
-
-const BRICK_I: TetrominoKind = TetrominoKind([[0, 0], [1, 0], [2, 0], [3, 0]]);
-const BRICK_J: TetrominoKind = TetrominoKind([[0, 0], [1, 0], [2, 0], [2, 1]]);
-const BRICK_L: TetrominoKind = TetrominoKind([[0, 0], [1, 0], [2, 0], [0, 1]]);
-const BRICK_O: TetrominoKind = TetrominoKind([[0, 0], [1, 0], [0, 1], [1, 1]]);
-const BRICK_S: TetrominoKind = TetrominoKind([[0, 0], [1, 0], [1, 1], [2, 1]]);
-const BRICK_T: TetrominoKind = TetrominoKind([[0, 0], [1, 0], [2, 0], [1, 1]]);
-const BRICK_Z: TetrominoKind = TetrominoKind([[0, 1], [1, 1], [1, 0], [2, 0]]);
-
-enum RenderLayer {
-    Background = 0,
-    Brick = 1,
-}
-
-#[derive(Component, Debug)]
-struct Tile;
-
-#[derive(Bundle, Debug)]
-struct TileBundle {
-    position: Position,
-    size: Size,
-    sprite: Sprite,
-    tile: Tile,
-}
-
-fn spawn_tile(commands: &mut Commands, color: Color, size: f32, position: Position) -> Entity {
-    commands
-        .spawn(TileBundle {
-            position,
-            size: Size::square(size),
-            sprite: Sprite {
-                color,
-                ..Default::default()
-            },
-            tile: Tile,
-        })
-        .id()
-}
-
-#[derive(Component, Reflect)]
-struct Tetromino {
-    pos: Position,
-    kind: TetrominoKind,
-}
-
-fn spawn_tetromino(commands: &mut Commands, kind: TetrominoKind, x: u32, y: u32) {
-    let tetromino = commands
-        .spawn(Tetromino {
-            pos: Position { x, y, z: 0 },
-            kind: kind.clone(),
-        })
-        .insert((Transform::default(), Visibility::default()))
-        .id();
-
-    for coord in kind.0 {
-        let e = spawn_tile(
-            commands,
-            Color::srgb(0.3, 0.3, 0.8),
-            0.9,
-            Position {
-                x: x + coord[0],
-                y: y + coord[1],
-                z: RenderLayer::Brick as u32,
-            },
-        );
-        commands.entity(e).set_parent(tetromino);
-    }
-}
-
 fn main() {
-    let mut app = App::new();
-    app.add_plugins(DefaultPlugins.set(WindowPlugin {
-        primary_window: Some(Window {
-            title: "Tetris".to_string(),
-            ..default()
-        }),
-        ..default()
-    }));
-
-    app.add_systems(
-        Startup,
-        (init_singletons, init_window, init_tile_grid).chain(),
-    )
-    .add_systems(
-        PostUpdate,
-        (translate_tetrominos, post_scale_tiles, post_translate_tiles).chain(),
-    );
-
-    app.add_plugins(debug_plugin::debug_plugin);
-
-    app.register_type::<Position>();
-    app.register_type::<Tetromino>();
-    app.register_type::<Size>();
-
-    // Run the app
-    app.run();
-}
-
-#[derive(Resource)]
-struct Score(u32);
-
-#[derive(Resource, Copy, Clone)]
-struct Matrix {
-    width: u32,
-    height: u32,
-}
-
-fn init_singletons(mut commands: Commands) {
-    let matrix = Matrix {
-        height: 15,
-        width: 15,
-    };
-    commands.insert_resource(Score(0));
-    commands.insert_resource(matrix);
-
-    commands.spawn(Camera2d {});
-}
-
-fn init_window(matrix: Res<Matrix>, mut window: Single<&mut Window>) {
-    const SCALE_FACTOR: f32 = 77.;
-
-    window.resolution.set(
-        matrix.width as f32 * SCALE_FACTOR,
-        matrix.height as f32 * SCALE_FACTOR,
-    );
-}
-
-#[derive(Component)]
-struct Grid;
-
-fn init_tile_grid(mut commands: Commands, matrix: Res<Matrix>) {
-    let grid = commands
-        .spawn(Grid)
-        .insert(Name::new("Background Grid"))
-        .insert((Transform::default(), Visibility::default()))
-        .id();
-
-    for y in 0..matrix.height {
-        for x in 0..matrix.width {
-            let color = match (y + x) % 2 == 0 {
-                true => Color::srgb(0.5, 0.5, 0.5),
-                false => Color::srgb(0.55, 0.55, 0.55),
-            };
-            let e = spawn_tile(
-                &mut commands,
-                color,
-                1.0,
-                Position {
-                    x,
-                    y,
-                    z: RenderLayer::Background as u32,
-                },
-            );
-            commands.entity(e).set_parent(grid);
-        }
-    }
-    test_render_all_tetrominos(commands);
-}
-
-fn test_render_all_tetrominos(mut commands: Commands) {
-    spawn_tetromino(&mut commands, BRICK_I, 0, 0);
-    spawn_tetromino(&mut commands, BRICK_T, 4, 0);
-    spawn_tetromino(&mut commands, BRICK_J, 8, 0);
-    spawn_tetromino(&mut commands, BRICK_L, 12, 0);
-
-    spawn_tetromino(&mut commands, BRICK_O, 0, 4);
-    spawn_tetromino(&mut commands, BRICK_S, 4, 4);
-    spawn_tetromino(&mut commands, BRICK_Z, 8, 4);
-    spawn_tetromino(&mut commands, BRICK_J, 12, 4);
+    todo!();
 }