brkrs 0.0.1

Breakout/Arkanoid-style game built in Rust using the Bevy engine, with physics powered by bevy_rapier3d
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153

use bevy::app::App;
use bevy::ecs::entity::EntityRow;
use bevy::ecs::message::Messages;
use bevy::prelude::*;
use bevy::time::Time;
use bevy::MinimalPlugins;
use bevy_rapier3d::prelude::{CollisionEvent, Velocity};

use brkrs::systems::respawn::{
    InputLocked, RespawnFadeOverlay, RespawnPlugin, RespawnSchedule, RespawnScheduled,
    RespawnVisualState, SpawnPoints,
};
use brkrs::{Ball, BallFrozen, Paddle};

use std::time::Duration;

fn test_app() -> App {
    let mut app = App::new();
    app.add_plugins(MinimalPlugins)
        .insert_resource(Assets::<Mesh>::default())
        .insert_resource(Assets::<StandardMaterial>::default())
        .add_message::<CollisionEvent>()
        .add_plugins(RespawnPlugin);
    {
        let mut spawn_points = app.world_mut().resource_mut::<SpawnPoints>();
        spawn_points.ball = Some(Vec3::new(0.0, 2.0, 0.0));
        spawn_points.paddle = Some(Vec3::new(0.0, 2.0, 0.0));
    }
    app
}

fn advance_time(app: &mut App, delta_secs: f32) {
    let mut time = app.world_mut().resource_mut::<Time>();
    time.advance_by(Duration::from_secs_f32(delta_secs));
}

fn send_respawn_event(app: &mut App, ball: Entity, paddle: Option<Entity>) {
    let mut events = app.world_mut().resource_mut::<Messages<RespawnScheduled>>();
    events.write(RespawnScheduled {
        ball,
        paddle,
        completes_at: 0.0,
        remaining_lives: 2,
    });
}

fn finish_overlay_timer(app: &mut App) {
    let overlay_entity = {
        let mut query = app
            .world_mut()
            .query_filtered::<Entity, With<RespawnFadeOverlay>>();
        query
            .iter(app.world())
            .next()
            .expect("respawn overlay should exist")
    };
    let duration = {
        let world = app.world();
        world
            .entity(overlay_entity)
            .get::<RespawnFadeOverlay>()
            .expect("respawn overlay missing")
            .timer()
            .duration()
    };
    app.world_mut()
        .entity_mut(overlay_entity)
        .get_mut::<RespawnFadeOverlay>()
        .expect("respawn overlay missing")
        .timer_mut()
        .tick(duration + Duration::from_millis(100));
}

fn overlay_exists(app: &mut App) -> bool {
    let mut query = app
        .world_mut()
        .query_filtered::<Entity, With<RespawnFadeOverlay>>();
    query.iter(app.world()).next().is_some()
}

#[test]
fn overlay_spawns_and_clears_after_duration() {
    let mut app = test_app();

    send_respawn_event(
        &mut app,
        Entity::from_row(EntityRow::from_raw_u32(1).unwrap()),
        None,
    );
    advance_time(&mut app, 0.016);
    app.update();

    assert!(overlay_exists(&mut app));
    assert!(app.world().resource::<RespawnVisualState>().is_active());

    finish_overlay_timer(&mut app);
    advance_time(&mut app, 0.0);
    app.update();

    assert!(!overlay_exists(&mut app));
    assert!(
        !app.world().resource::<RespawnVisualState>().is_active(),
        "visual state should clear once overlay despawns",
    );
}

#[test]
fn controls_unlock_only_after_overlay_finishes() {
    let mut app = test_app();

    let paddle = app.world_mut().spawn((Paddle, InputLocked)).id();
    let ball = app
        .world_mut()
        .spawn((Ball, BallFrozen, Velocity::zero()))
        .id();

    send_respawn_event(&mut app, ball, Some(paddle));
    advance_time(&mut app, 0.016);
    app.update();

    {
        let world = app.world();
        assert!(world.entity(paddle).contains::<InputLocked>());
        assert!(world.entity(ball).contains::<BallFrozen>());
    }

    {
        let mut schedule = app.world_mut().resource_mut::<RespawnSchedule>();
        schedule.pending = None;
        schedule.queue.clear();
    }
    advance_time(&mut app, 0.016);
    app.update();

    assert!(
        app.world().entity(paddle).contains::<InputLocked>(),
        "controls should remain locked while overlay is active",
    );

    finish_overlay_timer(&mut app);
    advance_time(&mut app, 0.0);
    app.update();

    let world = app.world();
    assert!(
        !world.entity(paddle).contains::<InputLocked>(),
        "paddle unlocks after overlay completes",
    );
    assert!(
        !world.entity(ball).contains::<BallFrozen>(),
        "ball defrosts after overlay completes",
    );
}