examples/images.rs

@@ -26,6 +26,7 @@ fn init_image(
         }));
         let mesh = Mesh2d(meshes.add(Rectangle::from_size(Vec2::splat(10.0))));
 
+
         // opaque
         // Each sprite should be square with the transparent parts being completely black
         // The blue sprite should be on top with the white and green one behind it
@@ -49,4 +50,6 @@ fn init_image(
 
         commands.spawn((name, mesh, material, t));
     }
+
 }
+

src/base_game.rs

@@ -47,7 +47,6 @@ pub fn toggle_state_visibility<S: States + Component>(
     });
 }
 
-// TODO: Rename to "create camera"
 pub fn setup_camera(mut commands: Commands) {
-    commands.spawn((Camera3d { ..default() }, Camera { ..default() }, AmbientLight::default()));
+    commands.spawn((Camera3d { ..default() }, Camera { ..default() }));
 }

src/bin/flappy/main.rs

@@ -1,74 +1,12 @@
-use bevy::{input::common_conditions::input_just_released, render::view::VisibleEntities};
 use games::*;
 
 fn main() {
     App::new()
-        .add_plugins(BaseGamePlugin {
+        .add_plugins(BaseGamePlugin { name: "flappy bird (with rewind)".into() })
-            name: "flappy bird (with rewind)".into(),
+        .add_systems(Startup, init_bird)
-        })
-        .init_state::<PlayerState>()
-        .add_systems(Startup, (init_bird, init_ground, init_ui, tweak_camera.after(setup_camera)))
-        .add_systems(OnEnter(PlayerState::Alive), alive_bird)
-        .add_systems(OnExit(PlayerState::Alive), kill_bird)
-        .add_systems(
-            Update,
-            (
-                // Systems to run when player state changes
-                (
-                    // Print out when this state changes for debugging purposes
-                    debug_state_changes::<PlayerState>,
-                    // Toggle (UI) elements when the player dies/alives
-                    toggle_state_visibility::<PlayerState>,
-                ).run_if(state_changed::<PlayerState>),
-                // Detect if the bird is "dead" by checking if it is visible
-                // from the point of view of the camera
-                detect_dead.run_if(in_state(PlayerState::Alive)),
-                // Toggle rewinding state when "R" is pressed/released
-                toggle_rewind.run_if(
-                    input_just_pressed(KeyCode::KeyR).or(input_just_released(KeyCode::KeyR)),
-                ),
-                // Systems to run in the "play" state
-                (
-                    // Only flap when we press the space key
-                    flap.run_if(input_just_pressed(KeyCode::Space)),
-                    // Rewinding systems
-                    record.run_if(any_component_changed::<Transform>),
-                )
-                    .run_if(in_state(PlayerState::Alive)),
-                // Rewinding systems
-                rewind.run_if(in_state(PlayerState::Rewind)),
-            ),
-        )
         .run();
 }
 
-fn tweak_camera(
-    mut camera: Query<(&mut Camera, &mut AmbientLight), With<Camera>>,
-) {
-    camera.iter_mut().for_each(|(mut c, mut al)| {
-        c.clear_color = ClearColorConfig::Custom(WHITE.into());
-        al.brightness = 100.0;
-    });
-}
-
-#[derive(Component)]
-struct Bird;
-
-#[derive(States, Clone, Eq, PartialEq, Debug, Hash, Default, Component)]
-enum PlayerState {
-    #[default]
-    Alive,
-    Rewind,
-    Dead,
-}
-
-// A tape tracking the bird's state every frame
-#[derive(Component, Default)]
-struct Tape {
-    translations: Vec<Vec3>,
-    rotations: Vec<Quat>,
-}
-
 fn init_bird(
     mut commands: Commands,
     server: Res<AssetServer>,
@@ -77,7 +15,7 @@ fn init_bird(
 ) {
         let material = MeshMaterial3d(materials.add(StandardMaterial {
             base_color_texture: Some(server.load("flappy/bevy.png")),
-        base_color: WHITE.into(),
+            base_color: WHITE.with_alpha(0.9).into(),
             alpha_mode: AlphaMode::Blend,
             ..default()
         }));
@@ -88,162 +26,11 @@ fn init_bird(
 
         let t = Transform::from_xyz(0.0, 0.0, -10.0).with_rotation(Quat::from_rotation_x(PI / 2.0));
 
-    let physics = (
+        let mass = (
             RigidBody::Dynamic,
-        Collider::capsule(1.0, 1.0), Mass(1.0),
+            Collider::capsule(1.0, 1.0),
-        ExternalForce::default().with_persistence(false),
+            Mass(5.0),
-        LockedAxes::ROTATION_LOCKED.lock_translation_z(),
-    );
-
-    let tape = Tape::default();
-
-    commands.spawn((name, mesh, material, physics, t, Bird, tape));
-}
-
-#[derive(Component)]
-struct Ground;
-
-fn init_ground(
-    mut commands: Commands,
-    mut meshes: ResMut<Assets<Mesh>>,
-    mut materials: ResMut<Assets<StandardMaterial>>,
-) {
-    let material = MeshMaterial3d(materials.add(StandardMaterial {
-        base_color: GREEN.into(),
-        ..default()
-    }));
-
-    let mesh = Mesh3d(meshes.add(Cuboid::new(5.0, 1.0, 1.0)));
-
-    let name = Name::new("ground");
-
-    let t = Transform::from_xyz(0.0, -4.0, -10.0);
-
-    let physics = (RigidBody::Static, Collider::cuboid(1.0, 1.0, 1.0));
-
-    commands.spawn((name, mesh, material, physics, t, Ground));
-}
-
-fn init_ui(
-    mut commands: Commands,
-) {
-    commands.spawn((
-        Node {
-            align_self: AlignSelf::Center,
-            justify_self: JustifySelf::Center,
-            flex_direction: FlexDirection::Column,
-            ..default()
-        },
-        PlayerState::Dead,
-        children![
-            Text::new("You Died"),
-            Text::new("Press R to Rewind"),
-        ],
-    ));
-}
-
-// TODO: Create floor (and ceiling?)
-// Q: Move bird + camera or move world around bird & camera?
-// TODO: Obstacles
-
-fn flap(
-    #[cfg(debug_assertions)] state: Res<State<PlayerState>>,
-    #[cfg(debug_assertions)] keycode: Res<ButtonInput<KeyCode>>,
-    mut bird: Query<(&Transform, &mut ExternalForce), With<Bird>>,
-) {
-    debug_assert!(
-        matches!(state.get(), PlayerState::Alive),
-        "Only flap when playing"
-    );
-    debug_assert!(
-        keycode.just_pressed(KeyCode::Space),
-        "Only flap when space is just pressed"
-    );
-
-    bird.iter_mut().for_each(|(t, mut f)| {
-        f.apply_force(t.rotation * Vec3::NEG_Z * 500.0);
-    });
-}
-
-fn toggle_rewind(keycode: Res<ButtonInput<KeyCode>>, mut next: ResMut<NextState<PlayerState>>) {
-    debug_assert!(
-        keycode.just_pressed(KeyCode::KeyR) || keycode.just_released(KeyCode::KeyR),
-        "Only toggle rewind when R is pressed"
-    );
-
-    if keycode.just_pressed(KeyCode::KeyR) {
-        debug!("Toggling rewind ON");
-        next.set(PlayerState::Rewind)
-    } else {
-        debug!("Toggling rewind OFF");
-        next.set(PlayerState::Alive)
-    }
-}
-
-fn record(
-    #[cfg(debug_assertions)] state: Res<State<PlayerState>>,
-    mut birds: Query<(&Transform, &mut Tape), With<Bird>>,
-) {
-    debug_assert!(
-        matches!(state.get(), PlayerState::Alive),
-        "Only record in the alive state"
-    );
-
-    birds.iter_mut().for_each(|(transform, mut tape)| {
-        tape.translations.push(transform.translation);
-        tape.rotations.push(transform.rotation);
-    });
-}
-
-fn rewind(
-    #[cfg(debug_assertions)] state: Res<State<PlayerState>>,
-    mut birds: Query<(&mut Transform, &mut Tape), With<Bird>>,
-) {
-    debug_assert!(
-        matches!(state.get(), PlayerState::Rewind),
-        "Only rewind in the rewinding state"
-    );
-
-    birds.iter_mut().for_each(|(mut transform, mut tape)| {
-        if let Some(t) = tape.translations.pop() {
-            transform.translation = t;
-        }
-        if let Some(r) = tape.rotations.pop() {
-            transform.rotation = r;
-        }
-    });
-}
-
-// PERF: Runs more than it needs, should only execute when bird enters/exit frame
-fn detect_dead(
-    #[cfg(debug_assertions)] state: Res<State<PlayerState>>,
-    bird: Single<&ColliderAabb, With<Bird>>,
-    ground: Single<&ColliderAabb, With<Ground>>,
-    mut next: ResMut<NextState<PlayerState>>,
-) {
-    debug_assert!(
-        matches!(state.get(), PlayerState::Alive),
-        "Only check if dead while alive"
         );
-    if bird.intersects(*ground) {
-        next.set(PlayerState::Dead);
-    }
-}
 
-fn alive_bird(
+        commands.spawn((name, mesh, material, mass, t));
-    #[cfg(debug_assertions)] state: Res<State<PlayerState>>,
-    mut bird: Single<&mut RigidBody, With<Bird>>,
-) {
-    debug_assert!(!matches!(state.get(), PlayerState::Dead));
-    debug!("Aliving bird");
-    **bird = RigidBody::Dynamic;
-}
-
-fn kill_bird(
-    #[cfg(debug_assertions)] state: Res<State<PlayerState>>,
-    mut bird: Single<&mut RigidBody, With<Bird>>,
-) {
-    debug_assert!(!matches!(state.get(), PlayerState::Alive));
-    debug!("Killing bird");
-    **bird = RigidBody::Static;
 }

src/bin/trees/debug.rs

@@ -4,11 +4,15 @@ pub(crate) struct TreesDebugPlugin;
 
 impl Plugin for TreesDebugPlugin {
     fn build(&self, app: &mut App) {
-        app.add_systems(Startup, init_debug_ui)
+        app.add_systems(
-            .add_systems(
+            Startup,
+            init_debug_ui,
+        ).add_systems(
             Update,
             (
-                    (spawn_debug_buttons.run_if(on_event::<AssetEvent<Monologue>>),),
+                (
+                    spawn_debug_buttons.run_if(on_event::<AssetEvent<Monologue>>),
+                ),
                 (
                     monologue_asset_tooltip
                         .run_if(on_event::<Pointer<Over>>.or(on_event::<Pointer<Out>>)),
@@ -17,11 +21,9 @@ impl Plugin for TreesDebugPlugin {
                     control_menu.run_if(on_event::<Pointer<Over>>.or(on_event::<Pointer<Out>>)),
                     delete_tree.run_if(on_event::<Pointer<Click>>),
                     drag_tree.run_if(on_event::<Pointer<Drag>>),
+                ).run_if(in_state(DebuggingState::On)),
             )
-                        .run_if(in_state(DebuggingState::On)),
+        ).add_observer(add_dialog_option);
-                ),
-            )
-            .add_observer(add_dialog_option);
     }
 }
 
@@ -34,6 +36,7 @@ struct MonologuesList;
 #[derive(Component)]
 struct MonologuePreview;
 
+
 fn drag_tree(
     mut events: EventReader<Pointer<Drag>>,
     state: Res<State<DebuggingState>>,
@@ -44,7 +47,8 @@ fn drag_tree(
     debug_assert_eq!(*state.get(), DebuggingState::On);
 
     events.read().for_each(|event| {
-        if let Ok(mut t) = query.get_mut(event.target) {
+        if let Ok(mut t) = query.get_mut(event.target)
+        {
             let world_position = window
                 .cursor_position()
                 .and_then(|cursor| camera.0.viewport_to_world(camera.1, cursor).ok())
@@ -152,6 +156,7 @@ fn init_debug_ui(mut commands: Commands) {
         });
 }
 
+
 // When you pointer goes off of the '+' or any of it's children make the entire menu invisible
 fn control_menu(
     mut over_events: EventReader<Pointer<Over>>,
@@ -222,6 +227,7 @@ fn add_dialog_option(trigger: Trigger<OnAdd, DialogOption>, mut commands: Comman
         .observe(hover_dialog_option_out);
 }
 
+
 fn assign_monologue_event(
     trigger: Trigger<Pointer<Click>>,
     mut events: EventWriter<AssignMonologue>,
@@ -231,11 +237,13 @@ fn assign_monologue_event(
     events.write(AssignMonologue(handle.clone()));
 }
 
+
 /// Observer for the "Plant a new tree" button in the debug UI
 fn spawn_tree(_trigger: Trigger<Pointer<Click>>, mut events: EventWriter<PlantTree>) {
     events.write(PlantTree(None));
 }
 
+
 fn clear_monologue(
     mut nodes: Query<
         (Entity, &NavState),
@@ -250,6 +258,7 @@ fn clear_monologue(
     });
 }
 
+
 // When you pointer over the '+' make the entire menu visible
 fn hide_menu(mut nodes: Query<(&mut Visibility, &NavState), Changed<NavState>>) {
     nodes.iter_mut().for_each(|(mut v, n)| {
@@ -260,11 +269,7 @@ fn hide_menu(mut nodes: Query<(&mut Visibility, &NavState), Changed<NavState>>)
     });
 }
 
-fn delete_tree(
+fn delete_tree(mut events: EventReader<Pointer<Click>>, mut commands: Commands, query: Query<Entity, With<Tree>>) {
-    mut events: EventReader<Pointer<Click>>,
-    mut commands: Commands,
-    query: Query<Entity, With<Tree>>,
-) {
     events.read().for_each(|event| {
         if matches!(event.event.button, PointerButton::Middle) && query.contains(event.target) {
             debug!("Middle Click -> Despawning {}", event.target);
@@ -407,3 +412,4 @@ fn spawn_debug_buttons(
         }
     });
 }
+

src/bin/trees/main.rs

@@ -3,13 +3,13 @@
 #![allow(clippy::too_many_arguments)]
 #![feature(trim_prefix_suffix)]
 
-mod debug;
 mod mono;
+mod debug;
 
 use bevy::{picking::hover::HoverMap, platform::hash::RandomState};
-use debug::*;
 use games::*;
 use mono::*;
+use debug::*;
 use std::hash::BuildHasher;
 
 fn main() {

src/bin/trees/mono.rs

@@ -16,6 +16,7 @@ impl Monologue {
     }
 }
 
+
 #[derive(Debug, Error)]
 pub struct MonologueParseError;
 
@@ -152,12 +153,16 @@ mod tests {
         let expected = Monologue {
             batches: vec![
                 MonologueLineBatch {
-                    lines: vec!["hello".into()],
+                    lines: vec![
+                        "hello".into()
+                    ],
                 },
                 MonologueLineBatch {
-                    lines: vec!["world".into()],
+                    lines: vec![
-                },
+                        "world".into()
-            ],
+                    ]
+                }
+            ]
         };
 
         assert_eq!(parsed, expected);
@@ -183,12 +188,16 @@ mod tests {
         let expected = Monologue {
             batches: vec![
                 MonologueLineBatch {
-                    lines: vec!["hello".into()],
+                    lines: vec![
+                        "hello".into()
+                    ],
                 },
                 MonologueLineBatch {
-                    lines: vec!["world".into()],
+                    lines: vec![
-                },
+                        "world".into()
-            ],
+                    ]
+                }
+            ]
         };
 
         assert_eq!(parsed, expected);
@@ -220,21 +229,28 @@ mod tests {
         let expected = Monologue {
             batches: vec![
                 MonologueLineBatch {
-                    lines: vec!["a".into(), "b".into(), "c".into()],
+                    lines: vec![
+                        "a".into(), "b".into(), "c".into()
+                    ]
                 },
                 MonologueLineBatch {
-                    lines: vec!["d".into(), "e".into()],
+                    lines: vec![
+                        "d".into(), "e".into()
+                    ]
                 },
                 MonologueLineBatch {
-                    lines: vec!["f".into()],
+                    lines: vec![
+                        "f".into()
+                    ]
                 },
-            ],
+            ]
         };
 
         assert_eq!(parsed, expected);
     }
 }
 
+
 #[derive(Default)]
 struct MonologueLoader;
 

src/debug.rs

@@ -390,12 +390,7 @@ fn toggle_physics_debug_render(
 ) {
     let (_, config) = config_store.config_mut::<PhysicsGizmos>();
     *config = match state.get() {
-        // TODO: Not all, don't want to hide mesh
         DebuggingState::On => PhysicsGizmos::all(),
         DebuggingState::Off => PhysicsGizmos::none(),
     };
 }
-
-pub fn debug_state_changes<S: States + std::fmt::Debug>(s: Res<State<S>>) {
-    info!("State changed: {:?}", s);
-}

src/lib.rs

@@ -9,12 +9,12 @@ mod ui;
 mod version;
 
 // Rust stdlib
-pub use std::f32::consts::PI;
 pub use std::fmt::Display;
+pub use std::f32::consts::PI;
 
 // Community libraries
-pub use avian3d::prelude::*;
 pub use bevy::{
+    sprite::AlphaMode2d,
     asset::{AssetLoader, LoadContext, LoadState, LoadedFolder, io::Reader},
     color::palettes::css::*,
     gizmos::{aabb::AabbGizmoPlugin, light::LightGizmoPlugin},
@@ -29,9 +29,9 @@ pub use bevy::{
     platform::collections::HashMap,
     prelude::*,
     reflect::TypePath,
-    sprite::AlphaMode2d,
     window::WindowResized,
 };
+pub use avian3d::prelude::*;
 pub use serde::Deserialize;
 pub use thiserror::Error;