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>>,
@@ -73,24 +83,34 @@ 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);
 
-    for i in 0..TILES {
+    commands
-        for j in 0..TILES {
+        .spawn((
-            let tile_x = i as f32 * TILE_SPACE - CENTER + OFFSET;
+            SpatialBundle {
-            let tile_y = j as f32 * TILE_SPACE - CENTER + OFFSET;
+                transform: Transform::from_xyz(0., 0., 0.),
-            commands.spawn(MaterialMesh2dBundle {
-                mesh: tile_mesh.clone(),
-                material: materials.add(tile_color),
-                transform: Transform::from_xyz(tile_x, tile_y, 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;
+                    parent.spawn(MaterialMesh2dBundle {
+                        mesh: tile_mesh.clone(),
+                        material: materials.add(tile_color),
+                        transform: Transform::from_xyz(tile_x, tile_y, 0.),
+                        ..default()
+                    });
+                }
+            }
+        });
 }