initial commit: bevy setup, background, score counter

.gitignore

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+/target

Cargo.toml

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+cargo-features = ["codegen-backend"]
+
+[package]
+name = "game4096"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+anyhow = "1.0.86"
+bevy = { version = "0.14.0", features = ["dynamic_linking"] }
+itertools = "0.13.0"
+log = { version = "*", features = ["max_level_debug", "release_max_level_warn"] }
+
+# Enable a small amount of optimization in debug mode.
+[profile.dev]
+opt-level = 1
+codegen-backend = "cranelift"
+
+# Enable a large amount of optimization in debug mode for dependencies.
+[profile.dev.package."*"]
+opt-level = 3
+codegen-backend = "llvm"
+
+[target.x86_64-unknown-linux-gnu]
+linker = "clang"
+rustflags = ["-C", "link-arg=-fuse-ld=lld"]
+
+[unstable]
+codegen-backend = true

src/main.rs

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+use bevy::prelude::*;
+
+// This resource tracks the game's score
+#[derive(Resource, Deref, DerefMut)]
+struct Score (usize);
+
+#[derive(Component)]
+struct ScoreboardUi;
+
+const BG_COLOR: Color = Color::srgb(0.949, 0.937, 0.769);
+const SCOREBOARD_FONT_SIZE: f32 = 44.0;
+const TEXT_COLOR: Color = Color::BLACK;
+const SCORE_COLOR: Color = Color::srgb(0.4, 0.05, 0.04);
+const SCOREBOARD_TEXT_PADDING: Val = Val::Px(22.0);
+
+pub struct SqPlugin;
+
+impl Plugin for SqPlugin {
+    fn build (&self, app: &mut App) {
+        // add things to your app here
+        app
+            .insert_resource(Score(0))
+            .insert_resource(ClearColor(BG_COLOR))
+
+            ;
+    }
+}
+
+fn setup (
+    mut commands: Commands,
+    mut meshes: ResMut<Assets<Mesh>>,
+    mut materials: ResMut<Assets<ColorMaterial>>,
+    asset_server: Res<AssetServer>,
+) {
+    commands.spawn(Camera2dBundle::default());
+
+    commands.spawn((
+        ScoreboardUi,
+        TextBundle::from_sections([
+            TextSection::new(
+                "Score: ",
+                TextStyle {
+                    font_size: SCOREBOARD_FONT_SIZE,
+                    color: TEXT_COLOR,
+                    ..default()
+                },
+            ),
+            TextSection::from_style(TextStyle {
+                font_size: SCOREBOARD_FONT_SIZE,
+                color: SCORE_COLOR,
+                ..default()
+            }),
+        ])
+        .with_style(Style {
+            position_type: PositionType::Absolute,
+            top: SCOREBOARD_TEXT_PADDING,
+            left: SCOREBOARD_TEXT_PADDING,
+            ..default()
+        }),
+        ));
+
+}
+
+fn update_scoreboard (score: Res<Score>, mut query: Query<&mut Text, With<ScoreboardUi>>) {
+    let mut text = query.single_mut();
+    text.sections[1].value = score.to_string();
+}
+
+
+fn main () {
+    App::new()
+        .add_plugins((DefaultPlugins.set(WindowPlugin {
+            primary_window: Some(Window {
+                title: String::from("4096GAME"),
+                ..Default::default()
+            }),
+            ..Default::default()
+        }), SqPlugin))
+        .add_systems(Startup, setup)
+        .add_systems(Update, update_scoreboard)
+        .run();
+}