Basic unit diversity

Cargo.lock

@@ -1740,6 +1740,7 @@ name = "card-game"
 version = "0.1.0"
 dependencies = [
  "bevy",
+ "rand",
 ]
 
 [[package]]

Cargo.toml

@@ -5,3 +5,4 @@ edition = "2024"
 
 [dependencies]
 bevy = { version = "0.18.0", features = ["wav","debug"] }
+rand = "0.9.2"

src/card/drag.rs

@@ -2,11 +2,14 @@ use bevy::prelude::*;
 
 use crate::{
     animation::transform::AnimatedTransform,
-    card::{Card, CardInHand, Hand},
+    card::{Card, CardInHand, CardType, Hand},
 };
 
 #[derive(EntityEvent)]
-pub struct CardDropped(pub Entity);
+pub struct CardDropped {
+    pub entity: Entity,
+    pub card_type: CardType,
+}
 
 #[derive(Component)]
 pub struct DraggableCard;
@@ -58,12 +61,11 @@ pub fn card_drag(
     }
 }
 
-pub fn card_drag_end(
-    event: On<Pointer<DragEnd>>,
-    mut commands: Commands,
-    cards: Query<(), With<Card>>,
-) {
-    if let Ok(_) = cards.get(event.entity) {
-        commands.trigger(CardDropped(event.entity));
+pub fn card_drag_end(event: On<Pointer<DragEnd>>, mut commands: Commands, cards: Query<&Card>) {
+    if let Ok(card) = cards.get(event.entity) {
+        commands.trigger(CardDropped {
+            entity: event.entity,
+            card_type: card.card_type,
+        });
     }
 }

src/card/draw.rs

@@ -0,0 +1,75 @@
+use bevy::prelude::*;
+use rand::random_range;
+
+use crate::{
+    animation::transform::AnimatedTransform,
+    card::{Card, CardImages, CardInHand, Hand, drag::DraggableCard},
+    unit::UnitType,
+};
+
+#[derive(Event)]
+pub struct DrawCard {
+    card_type: Option<CardType>,
+}
+
+impl DrawCard {
+    pub fn random_card() -> Self {
+        Self { card_type: None }
+    }
+    pub fn new(card_type: Option<CardType>) -> Self {
+        Self { card_type }
+    }
+}
+
+#[derive(Clone, Copy)]
+pub enum CardType {
+    Unit(UnitType),
+}
+
+pub(super) fn card_add(
+    event: On<DrawCard>,
+    mut commands: Commands,
+    card_image: Res<CardImages>,
+    mut hand: Single<&mut Hand>,
+) {
+    let sprite: Handle<Image>;
+    let card_type: CardType;
+
+    card_type = match &event.card_type {
+        Some(event_card_type) => event_card_type.clone(),
+        None => match random_range(0..3) {
+            0 => CardType::Unit(UnitType::Fosma),
+            1 => CardType::Unit(UnitType::Zlosma),
+            2 => CardType::Unit(UnitType::Doh),
+            _ => CardType::Unit(UnitType::Fosma),
+        },
+    };
+
+    match &card_type {
+        CardType::Unit(unit_type) => match unit_type {
+            UnitType::Fosma => {
+                sprite = card_image.fosma_texture();
+            }
+            UnitType::Zlosma => {
+                sprite = card_image.zlosma_texture();
+            }
+            UnitType::Doh => {
+                sprite = card_image.doh_texture();
+            }
+        },
+    }
+
+    let card = commands
+        .spawn((
+            Sprite::from_image(sprite),
+            Transform::from_xyz(0., 0., 10.),
+            AnimatedTransform::from_xyz(0., 0., 10.),
+            Card::new(card_type.clone()),
+            DraggableCard,
+            CardInHand,
+            Pickable::default(),
+        ))
+        .id();
+
+    hand.0.push(card);
+}

src/card/mod.rs

@@ -3,15 +3,25 @@ use std::f32;
 use crate::animation::transform::AnimatedTransform;
 use bevy::prelude::*;
 use drag::*;
+pub use draw::*;
 use playing::*;
 
 pub mod drag;
+pub mod draw;
 pub mod playing;
 
 pub struct CardPlugin;
 
 #[derive(Component)]
-pub struct Card;
+pub struct Card {
+    pub card_type: CardType,
+}
+
+impl Card {
+    pub fn new(card_type: CardType) -> Self {
+        Self { card_type }
+    }
+}
 
 #[derive(Component)]
 pub struct CardInHand;
@@ -20,10 +30,23 @@ pub struct CardInHand;
 pub struct Hand(Vec<Entity>);
 
 #[derive(Resource)]
-pub struct CardImage(Handle<Image>);
+pub struct CardImages {
+    fosma: Handle<Image>,
+    doh: Handle<Image>,
+    zlosma: Handle<Image>,
+}
 
-#[derive(Event)]
-pub struct AddCard;
+impl CardImages {
+    pub fn fosma_texture(&self) -> Handle<Image> {
+        self.fosma.clone()
+    }
+    pub fn doh_texture(&self) -> Handle<Image> {
+        self.doh.clone()
+    }
+    pub fn zlosma_texture(&self) -> Handle<Image> {
+        self.zlosma.clone()
+    }
+}
 
 #[derive(EntityEvent)]
 pub struct InsertCard(Entity);
@@ -55,9 +78,11 @@ fn hand_setup(mut commands: Commands, asset_server: Res<AssetServer>) {
         InheritedVisibility::VISIBLE,
     ));
 
-    commands.insert_resource(CardImage(
-        asset_server.load::<Image>("sprites/cards/units/fosma.png"),
-    ));
+    commands.insert_resource(CardImages {
+        fosma: asset_server.load("sprites/cards/units/fosma.png"),
+        doh: asset_server.load("sprites/cards/units/doh.png"),
+        zlosma: asset_server.load("sprites/cards/units/zlosma.png"),
+    });
 }
 
 fn card_arrange(
@@ -77,27 +102,6 @@ fn card_arrange(
     }
 }
 
-fn card_add(
-    _: On<AddCard>,
-    mut commands: Commands,
-    card_image: Res<CardImage>,
-    mut hand: Single<&mut Hand>,
-) {
-    let card = commands
-        .spawn((
-            Sprite::from_image(card_image.0.clone()),
-            Transform::from_xyz(0., 0., 10.),
-            AnimatedTransform::from_xyz(0., 0., 10.),
-            Card,
-            DraggableCard,
-            CardInHand,
-            Pickable::default(),
-        ))
-        .id();
-
-    hand.0.push(card);
-}
-
 fn card_clear(_: On<ClearCards>, mut commands: Commands, mut hand: Single<&mut Hand>) {
     for card in &hand.0 {
         let entity = card.clone();

src/card/playing.rs

@@ -17,18 +17,25 @@ pub fn card_playing_system(
     mouse_position: Res<MousePosition>,
     textures: Res<UnitTextures>,
 ) {
-    let fosma = commands
+    let bundle = match event.card_type {
+        super::CardType::Unit(unit_type) => match unit_type {
+            crate::unit::UnitType::Fosma => Sprite::from_image(textures.fosma_texture()),
+            crate::unit::UnitType::Zlosma => Sprite::from_image(textures.zlosma_texture()),
+            crate::unit::UnitType::Doh => Sprite::from_image(textures.doh_texture()),
+        },
+    };
+    let unit = commands
         .spawn((
             AnimatedTransform::identity(),
             Transform::from_translation(mouse_position.0),
-            Sprite::from_image(textures.fosma_texture()),
+            bundle,
         ))
         .id();
-    if grid.try_set(mouse_position.0.truncate(), fosma) {
-        commands.entity(event.0).despawn();
+    if grid.try_set(mouse_position.0.truncate(), unit) {
+        commands.entity(event.entity).despawn();
     } else {
-        commands.entity(fosma).despawn();
-        commands.entity(event.0).insert(CardInHand);
-        commands.trigger(InsertCard(event.0));
+        commands.entity(unit).despawn();
+        commands.entity(event.entity).insert(CardInHand);
+        commands.trigger(InsertCard(event.entity));
     }
 }

src/dev_tools/mod.rs

@@ -58,7 +58,7 @@ fn setup_debug_menu(mut commands: Commands) {
 
     commands.spawn(button(panel, "AddCard")).observe(
         |_: On<buttons::ButtonPressedEvent>, mut commands: Commands| {
-            commands.trigger(card::AddCard)
+            commands.trigger(card::DrawCard::random_card())
         },
     );
     commands.spawn(button(panel, "ClearCards")).observe(

src/unit/mod.rs

@@ -10,16 +10,33 @@ impl Plugin for UnitPlugin {
 fn unit_setup(mut commands: Commands, asset_server: Res<AssetServer>) {
     commands.insert_resource(UnitTextures {
         fosma: asset_server.load("sprites/units/fosma.png"),
+        doh: asset_server.load("sprites/units/doh.png"),
+        zlosma: asset_server.load("sprites/units/zlosma.png"),
     });
 }
 
+#[derive(PartialEq, Eq, Clone, Copy)]
+pub enum UnitType {
+    Fosma,
+    Zlosma,
+    Doh,
+}
+
 #[derive(Resource)]
 pub struct UnitTextures {
     fosma: Handle<Image>,
+    doh: Handle<Image>,
+    zlosma: Handle<Image>,
 }
 
 impl UnitTextures {
     pub fn fosma_texture(&self) -> Handle<Image> {
         self.fosma.clone()
     }
+    pub fn doh_texture(&self) -> Handle<Image> {
+        self.doh.clone()
+    }
+    pub fn zlosma_texture(&self) -> Handle<Image> {
+        self.zlosma.clone()
+    }
 }