Some animations

src/animation/transform.rs

@@ -4,17 +4,23 @@ use bevy::prelude::*;
 #[require(Transform)]
 pub struct AnimatedTransform {
     pub translation: Vec3,
+    pub rotation: Quat,
+    pub scale: Vec3,
 }
 
 impl AnimatedTransform {
     pub fn from_xyz(x: f32, y: f32, z: f32) -> Self {
         AnimatedTransform {
             translation: Vec3 { x, y, z },
+            rotation: Quat::IDENTITY,
+            scale: Vec3::ONE,
         }
     }
     pub fn identity() -> Self {
         AnimatedTransform {
             translation: Vec3::ZERO,
+            rotation: Quat::IDENTITY,
+            scale: Vec3::ONE,
         }
     }
 }
@@ -22,5 +28,7 @@ impl AnimatedTransform {
 pub fn transform_animation(query: Query<(&mut Transform, &AnimatedTransform)>) {
     for (mut transform, anim_transform) in query {
         transform.translation = transform.translation.lerp(anim_transform.translation, 0.25);
+        transform.rotation = transform.rotation.lerp(anim_transform.rotation, 0.25);
+        transform.scale = transform.scale.lerp(anim_transform.scale, 0.25);
     }
 }

src/card/drag.rs

@@ -1,8 +1,9 @@
-use bevy::prelude::*;
+use bevy::{picking::hover::PickingInteraction, prelude::*};
 
 use crate::{
     animation::transform::AnimatedTransform,
     card::{Card, CardInHand, CardType, Hand},
+    mouse_position::MousePosition,
 };
 
 #[derive(EntityEvent)]
@@ -14,26 +15,6 @@ pub struct CardDropped {
 #[derive(Component)]
 pub struct DraggableCard;
 
-#[derive(Resource)]
-pub struct MousePosition(pub Vec3);
-
-pub fn mouse_position_system(
-    mut mouse: ResMut<MousePosition>,
-    window: Single<&Window>,
-    camera: Single<(&Camera, &GlobalTransform)>,
-) {
-    if let Some(Ok(mouse_pos)) = window
-        .cursor_position()
-        .and_then(|viewport_pos| Some(camera.0.viewport_to_world_2d(camera.1, viewport_pos)))
-    {
-        mouse.0 = Vec3 {
-            x: mouse_pos.x,
-            y: mouse_pos.y,
-            z: 0.,
-        }
-    }
-}
-
 pub fn card_drag_start(
     event: On<Pointer<DragStart>>,
     mut commands: Commands,
@@ -56,8 +37,12 @@ pub fn card_drag(
     mut card_transform: Query<&mut AnimatedTransform, With<Card>>,
     mouse_pos: Res<MousePosition>,
 ) {
+    const MAX_DISTANCE: f32 = 2.0;
     if let Ok(mut card) = card_transform.get_mut(event.entity) {
-        card.translation = mouse_pos.0.truncate().extend(10.);
+        card.translation = mouse_pos.position.truncate().extend(10.);
+        card.rotation = Quat::from_rotation_z(
+            -0.261799387799 * (mouse_pos.delta.x / MAX_DISTANCE).clamp(-1., 1.),
+        )
     }
 }
 

src/card/mod.rs

@@ -57,20 +57,26 @@ pub struct ClearCards;
 impl Plugin for CardPlugin {
     fn build(&self, app: &mut App) {
         app.add_systems(Startup, hand_setup)
+            .add_systems(PreUpdate, card_transform_reset)
             .add_systems(Update, card_arrange)
             .add_observer(card_add)
             .add_observer(card_clear)
             .add_observer(insert_card)
             .add_observer(despawn_card);
-        app.insert_resource(MousePosition(Vec3::new(0., 0., 0.)))
-            .add_systems(PreUpdate, mouse_position_system)
-            .add_observer(card_drag_start)
+        app.add_observer(card_drag_start)
             .add_observer(card_drag)
             .add_observer(card_drag_end);
         app.add_observer(card_playing_system);
     }
 }
 
+fn card_transform_reset(query: Query<&mut AnimatedTransform, With<Card>>) {
+    for mut card in query {
+        card.rotation = Quat::IDENTITY;
+        card.scale = Vec3::ONE
+    }
+}
+
 fn hand_setup(mut commands: Commands, asset_server: Res<AssetServer>) {
     commands.spawn((
         Hand(Vec::new()),

src/card/playing.rs

@@ -2,11 +2,9 @@ use bevy::prelude::*;
 
 use crate::{
     animation::transform::AnimatedTransform,
-    card::{
-        CardInHand, InsertCard,
-        drag::{CardDropped, MousePosition},
-    },
+    card::{CardInHand, InsertCard, drag::CardDropped},
     grid::Grid,
+    mouse_position::MousePosition,
     turns::TurnUnit,
     unit::UnitTextures,
 };
@@ -28,12 +26,12 @@ pub fn card_playing_system(
     let unit = commands
         .spawn((
             AnimatedTransform::identity(),
-            Transform::from_translation(mouse_position.0),
+            Transform::from_translation(mouse_position.position),
             bundle,
             TurnUnit,
         ))
         .id();
-    if grid.try_set(mouse_position.0.truncate(), unit) {
+    if grid.try_set(mouse_position.position.truncate(), unit) {
         commands.entity(event.entity).despawn();
     } else {
         commands.entity(unit).despawn();

src/main.rs

@@ -5,6 +5,7 @@ mod buttons;
 mod card;
 mod dev_tools;
 mod grid;
+mod mouse_position;
 mod music_player;
 mod turns;
 mod unit;
@@ -21,6 +22,7 @@ fn main() {
             turns::TurnSystemPlugin,
             unit::UnitPlugin,
             music_player::MusicPlayerPlugin,
+            mouse_position::MousePositionPlugin,
         ))
         .add_systems(Startup, setup)
         .run();

src/mouse_position.rs

@@ -0,0 +1,41 @@
+use bevy::prelude::*;
+
+pub struct MousePositionPlugin;
+
+impl Plugin for MousePositionPlugin {
+    fn build(&self, app: &mut App) {
+        app.insert_resource(MousePosition {
+            position: Vec3::ZERO,
+            delta: Vec3::ZERO,
+        })
+        .add_systems(PreUpdate, mouse_position_system);
+    }
+}
+
+#[derive(Resource)]
+pub struct MousePosition {
+    pub position: Vec3,
+    pub delta: Vec3,
+}
+
+pub fn mouse_position_system(
+    mut mouse: ResMut<MousePosition>,
+    window: Single<&Window>,
+    camera: Single<(&Camera, &GlobalTransform)>,
+) {
+    if let Some(Ok(mouse_pos)) = window
+        .cursor_position()
+        .and_then(|viewport_pos| Some(camera.0.viewport_to_world_2d(camera.1, viewport_pos)))
+    {
+        mouse.delta = Vec3 {
+            x: mouse_pos.x - mouse.position.x,
+            y: mouse_pos.y - mouse.position.y,
+            z: 0.,
+        };
+        mouse.position = Vec3 {
+            x: mouse_pos.x,
+            y: mouse_pos.y,
+            z: 0.,
+        };
+    }
+}