hee hee spinny square

src/main.rs

@@ -60,9 +60,19 @@ fn main() {
         .insert_resource(WinitSettings::desktop_app())
         .add_plugins(DefaultPlugins)
         .add_systems(Startup, setup)
+        .add_systems(Update, rotate_board)
         .run();
 }
 
+fn rotate_board(mut board: Query<&mut Transform, With<Board>>) {
+    let mut board = board.get_single_mut().unwrap();
+
+    board.rotate_local_z(0.1);
+}
+
+#[derive(Component)]
+struct Board;
+
 fn setup(
     mut commands: Commands,
     mut meshes: ResMut<Assets<Mesh>>,
@@ -73,19 +83,28 @@ fn setup(
     const TILES: i32 = 9;
     const TILE_SIZE: f32 = 50.;
     const GAP_SIZE: f32 = 10.;
-    const OFFSET: f32 = (TILE_SIZE + GAP_SIZE) / 2.;
     const TOTAL_WIDTH: f32 = (TILE_SIZE + GAP_SIZE) * TILES as f32;
     const TILE_SPACE: f32 = TOTAL_WIDTH / TILES as f32;
+    const OFFSET: f32 = TILE_SPACE / 2.;
     const CENTER: f32 = TOTAL_WIDTH / 2.;
 
     let tile_mesh = Mesh2dHandle(meshes.add(Rectangle::new(TILE_SIZE, TILE_SIZE)));
     let tile_color = Color::from(tailwind::NEUTRAL_700);
 
+    commands
+        .spawn((
+            SpatialBundle {
+                transform: Transform::from_xyz(0., 0., 0.),
+                ..default()
+            },
+            Board,
+        ))
+        .with_children(|parent| {
             for i in 0..TILES {
                 for j in 0..TILES {
                     let tile_x = i as f32 * TILE_SPACE - CENTER + OFFSET;
                     let tile_y = j as f32 * TILE_SPACE - CENTER + OFFSET;
-            commands.spawn(MaterialMesh2dBundle {
+                    parent.spawn(MaterialMesh2dBundle {
                         mesh: tile_mesh.clone(),
                         material: materials.add(tile_color),
                         transform: Transform::from_xyz(tile_x, tile_y, 0.),
@@ -93,4 +112,5 @@ fn setup(
                     });
                 }
             }
+        });
 }