random 2d z ordering

[wagnerf42]

hi,
i'm giving a try at bevy and i'm a bit puzzled with how layouts work in 2d.
i have two layers: one text layer and one solid material sprites.
when i run it's either all text on top or all text below and this seems to be random.
I understood that i could govern who could go on top using a z coordinate but this does not seem to change anything.
here is my code (using bevy 0.5.0)

fn main() {
    App::build()
        .add_plugins(DefaultPlugins)
        .insert_resource(ClearColor(Color::rgb(0.2, 0.2, 0.2)))
        .add_startup_system(setup.system())
        .run();
}

struct CellCoordinates {
    line: u32,
    column: u32,
}

fn setup(
    mut commands: Commands,
    mut materials: ResMut<Assets<ColorMaterial>>,
    asset_server: Res<AssetServer>,
) {
    let term_width = 80;
    let term_height = 25;
    let cell_size = 20.0;
    // 2d camera
    commands.spawn_bundle(OrthographicCameraBundle::new_2d());
    commands.spawn_bundle(UiCameraBundle::default());

    for column in 0..term_width {
        for line in 0..term_height {
            let color = [Color::RED, Color::GREEN, Color::BLUE][(line + column) % 3];
            commands
                .spawn_bundle(SpriteBundle {
                    material: materials.add(color.into()),
                    transform: Transform::from_xyz(
                        column as f32 * cell_size,
                        line as f32 * cell_size,
                        0.0,
                    ),
                    sprite: Sprite::new(Vec2::new(cell_size, cell_size)),
                    ..Default::default()
                })
                .insert_bundle(Text2dBundle {
                    text: Text::with_section(
                        "A",
                        TextStyle {
                            font: asset_server.load("fonts/fira.ttf"),
                            font_size: 20.0,
                            color: Color::WHITE,
                        },
                        TextAlignment {
                            vertical: VerticalAlign::Center,
                            horizontal: HorizontalAlign::Center,
                        },
                    ),
                    transform: Transform::from_xyz(
                        column as f32 * cell_size,
                        line as f32 * cell_size,
                        10.0,
                    ),
                    ..Default::default()
                })
                .insert(CellCoordinates {
                    line: line as u32,
                    column: column as u32,
                });
        }
    }
}

am i doing something wrong ?

[rparrett]

When you insert the Text2dBundle here, you're overwriting most of the components previously added with the SpriteBundle.

You can either spawn the Text2dBundle as a child of the entity holding the SpriteBundle components with commands.with_children (its transform would then be relative to its parent), or as a separate entity.

[wagnerf42]

ok thanks for the answer. i'll see where i can go from there.

thanks again very much.