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breakout: add scoreboard

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This commit is contained in:
Carter Anderson 2020-06-27 02:10:07 -07:00
parent 7441ac1a01
commit c5842fd92b
1 changed files with 33 additions and 2 deletions
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35
examples/game/breakout/main.rs
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@ -6,11 +6,13 @@ use bevy::{
fn main() {
App::build()
.add_default_plugins()
.add_resource(Scoreboard { score: 0 })
.add_resource(ClearColor(Color::rgb(0.7, 0.7, 0.7)))
.add_startup_system(setup.system())
.add_system(paddle_movement_system.system())
.add_system(ball_collision_system.system())
.add_system(ball_movement_system.system())
.add_system(scoreboard_system.system())
.run();
}
@ -25,7 +27,11 @@ struct Ball {
struct Brick;
struct Wall;
fn setup(command_buffer: &mut CommandBuffer, mut materials: ResMut<Assets<ColorMaterial>>) {
struct Scoreboard {
score: usize,
}
fn setup(command_buffer: &mut CommandBuffer, mut materials: ResMut<Assets<ColorMaterial>>, asset_server: Res<AssetServer>) {
// Add the game's entities to our world
let mut builder = command_buffer.build();
builder
@ -52,7 +58,24 @@ fn setup(command_buffer: &mut CommandBuffer, mut materials: ResMut<Assets<ColorM
})
.with(Ball {
velocity: 400.0 * Vec3::new(0.5, -0.5, 0.0).normalize(),
});
})
// scoreboard
.entity_with(LabelComponents {
label: Label {
font: asset_server.load("assets/fonts/FiraSans-Bold.ttf").unwrap(),
text: "Score:".to_string(),
style: TextStyle {
color: Color::rgb(0.2, 0.2, 0.8).into(),
font_size: 40.0,
}
},
node: Node::new(
Anchors::TOP_LEFT,
Margins::new(10.0, 50.0, 10.0, 50.0),
),
..Default::default()
})
;
// Add walls
let wall_material = materials.add(Color::rgb(0.5, 0.5, 0.5).into());
@ -161,9 +184,16 @@ fn ball_movement_system(
}
}
fn scoreboard_system(world: &mut SubWorld, scoreboard: Res<Scoreboard>, query: &mut Query<Write<Label>>) {
for mut label in query.iter_mut(world) {
label.text = format!("Score: {}", scoreboard.score);
}
}
fn ball_collision_system(
command_buffer: &mut CommandBuffer,
world: &mut SubWorld,
mut scoreboard: ResMut<Scoreboard>,
ball_query: &mut Query<(Write<Ball>, Read<Translation>, Read<Sprite>)>,
paddle_query: &mut Query<(Read<Paddle>, Read<Translation>, Read<Sprite>)>,
brick_query: &mut Query<(Read<Brick>, Read<Translation>, Read<Sprite>)>,
@ -201,6 +231,7 @@ fn ball_collision_system(
collision = collide(ball_position, ball_size, translation.0, sprite.size);
if collision.is_some() {
scoreboard.score += 1;
command_buffer.delete(brick_entity);
}
}