warning signs, timer

src/core/collectible.rs

@@ -9,6 +9,7 @@ use bevy::prelude::*;
 const ASSETS_NAME: [&str; 3] = ["speed_item.png", "shield_item.png", "kirby_item.png"];
 const COLLECTABLE_COLLIDER_RADIUS: f32 = 50.0;
 const KIRBY_SPAWN_TIMER_DURATION: Duration = Duration::from_secs(2);
+pub const COLLECTABLE_SCALE: f32 = 2.5;
 
 #[derive(Clone, Copy)]
 pub enum CollectableType {
@@ -33,7 +34,7 @@ pub fn collectable_spawn(
     commands.spawn((
         Collectable(collectable_type),
         SphereCollider::new(COLLECTABLE_COLLIDER_RADIUS),
-        Transform::from_translation(pos.extend(0.0)).with_scale(Vec3::splat(2.5)),
+        Transform::from_translation(pos.extend(0.0)).with_scale(Vec3::splat(COLLECTABLE_SCALE)),
         sprite,
     ));
 }
@@ -42,6 +43,7 @@ pub fn collectable_actions_system(
     mut commands: Commands,
     mut kirby_query: Query<(&mut Kirby, &SphereCollider, &Transform)>,
     collectable_query: Query<(Entity, &Collectable, &SphereCollider, &Transform)>,
+    asset_server: Res<AssetServer>,
 ) {
     for (mut kirby, kirby_collider, kirby_tf) in &mut kirby_query {
         for (collectible_entity, collectible, c_collider, collectable_tf) in collectable_query {
@@ -54,7 +56,7 @@ pub fn collectable_actions_system(
             match &collectible.0 {
                 CollectableType::SpeedBoost => speed_boost(&mut kirby),
                 CollectableType::ShieldBoost => shield_boost(&mut kirby),
-                CollectableType::NewKirby => new_kirby(kirby_pos, &mut commands),
+                CollectableType::NewKirby => new_kirby(kirby_pos, &mut commands, &asset_server),
             }
 
             commands.entity(collectible_entity).despawn();
@@ -70,15 +72,16 @@ fn shield_boost(kirby: &mut Kirby) {
     kirby.shield_factor *= 0.8;
 }
 
-fn new_kirby(kirby_pos: Vec3, commands: &mut Commands) {
-    commands.spawn(KirbySpawnHandler {
-        timer: Timer::new(KIRBY_SPAWN_TIMER_DURATION, TimerMode::Once),
-        position: kirby_pos,
-    });
+fn new_kirby(kirby_pos: Vec3, commands: &mut Commands, asset_server: &Res<AssetServer>) {
+    commands.spawn((
+        KirbySpawnHandler { timer: Timer::new(KIRBY_SPAWN_TIMER_DURATION, TimerMode::Once), position: kirby_pos },
+        Sprite::from_image(asset_server.load("sprites/timer.png")),
+        Transform::from_translation(kirby_pos).with_scale(Vec3::splat(COLLECTABLE_SCALE)),
+    ));
 }
 
 #[derive(Component)]
-#[require(DispawnOnGameOver)]
+#[require(DispawnOnGameOver, Sprite, Transform)]
 struct KirbySpawnHandler {
     timer: Timer,
     position: Vec3,

src/core/game_state.rs

@@ -1,6 +1,9 @@
 use bevy::{ecs::system::SystemParam, prelude::*};
 
-use crate::core::{kirby::Kirby, wave::BubbleWaves};
+use crate::core::{
+    kirby::Kirby,
+    wave::{BubbleWaves, EnnemyWaveLock},
+};
 
 #[derive(Event)]
 pub struct EndGameEvent {
@@ -44,6 +47,7 @@ fn reset_resource<T: Resource + Resetable>(mut res: ResMut<T>) {
 #[derive(SystemParam)]
 struct GameRes<'w> {
     bubble_waves: ResMut<'w, BubbleWaves>,
+    ennemy_wave_lock: ResMut<'w, EnnemyWaveLock>,
 }
 
 fn on_reset_world(
@@ -56,6 +60,7 @@ fn on_reset_world(
         commands.entity(e).despawn();
     }
     reset_resource(game_res.bubble_waves);
+    reset_resource(game_res.ennemy_wave_lock);
     println!("Set state");
     commands.set_state(GameState::Starting);
 }

src/core/wave.rs

@@ -1,19 +1,31 @@
-use std::thread::panicking;
+use std::{thread::panicking, time::Duration};
 
-use bevy::prelude::*;
+use bevy::{ecs::system::lifetimeless::SCommands, prelude::*};
 use rand::distr::slice::Empty;
 
 use crate::{
     core::{
         bubble::{Bubble, bubble_spawn_wave},
-        collectible::{CollectableType, collectable_spawn},
-        game_state::{EndGameEvent, EndGameReason, Resetable},
+        collectible::{COLLECTABLE_SCALE, CollectableType, collectable_spawn},
+        game_state::{DispawnOnGameOver, EndGameEvent, EndGameReason, Resetable},
         kirby::Kirby,
         life::Life,
     },
     map::map::{BOTTOM, LEFT, RIGHT, TOP},
 };
 
+#[derive(Event)]
+pub struct NextWaveEvent;
+
+#[derive(Component)]
+#[require(DispawnOnGameOver)]
+pub struct NextWaveTimer {
+    timer: Timer,
+}
+
+#[derive(Event)]
+struct NextWaveTimerTimeout;
+
 pub struct BubbleType {
     pub color: Color,
     pub move_force: f32,
@@ -97,17 +109,81 @@ impl Resetable for BubbleWaves {
     }
 }
 
+#[derive(Resource, Default)] // Default is false
+pub struct EnnemyWaveLock(bool);
+
+impl Resetable for EnnemyWaveLock {
+    fn reset(&mut self) {
+        *self = EnnemyWaveLock::default()
+    }
+}
+
 fn no_ennemy_left(bubble_query: Query<(), With<Bubble>>) -> bool {
     bubble_query.is_empty()
 }
 
-fn change_wave(mut bubble_wave: ResMut<BubbleWaves>, mut commands: Commands, asset_server: Res<AssetServer>) {
+#[derive(Component)]
+#[require(Sprite, Transform, DispawnOnGameOver)]
+struct WarningSign;
+
+fn change_wave(
+    mut lock: ResMut<EnnemyWaveLock>,
+    bubble_wave: Res<BubbleWaves>,
+    mut commands: Commands,
+    asset_server: Res<AssetServer>,
+) {
+    // Beetwen moment where all ennemies are killed and NextWaveTimer trigger the spawn of the new ennemy
+    // there is some time, and change_wave will be called every frame during this instance
+    // that's why there is an ugly-ass lock
+    if lock.0 {
+        return;
+    }
+    lock.0 = true;
     let max_bubble_wave = bubble_wave.waves.len();
     if bubble_wave.current_wave >= max_bubble_wave {
         commands.trigger(EndGameEvent { reason: EndGameReason::Victory });
         return;
     }
+    let current_bubble_wave = &bubble_wave.waves[bubble_wave.current_wave];
+    for bubble_splash in current_bubble_wave {
+        commands.spawn((
+            WarningSign,
+            Sprite::from_image(asset_server.load("sprites/warning.png")),
+            Transform::from_translation(bubble_splash.center.extend(0.0)).with_scale(Vec3::splat(COLLECTABLE_SCALE)),
+        ));
+    }
 
+    println!("change wave");
+    commands.trigger(NextWaveEvent);
+    commands.spawn((NextWaveTimer { timer: Timer::new(Duration::from_secs(1), TimerMode::Once) },));
+}
+
+fn next_wave_timer_system(
+    next_wave_timer_query: Single<(&mut NextWaveTimer, Entity)>,
+    time: Res<Time>,
+    mut commands: Commands,
+) {
+    let (mut next_wave_timer, timer_id) = next_wave_timer_query.into_inner();
+    next_wave_timer.timer.tick(time.delta());
+    if next_wave_timer.timer.is_finished() {
+        commands.trigger(NextWaveTimerTimeout);
+        commands.entity(timer_id).despawn();
+    }
+}
+
+fn delete_warning_sign(_: On<NextWaveTimerTimeout>, mut commands: Commands, query: Query<Entity, With<WarningSign>>) {
+    for entity in query {
+        commands.entity(entity).despawn();
+    }
+}
+
+fn spawn_wave_ennemy(
+    _: On<NextWaveTimerTimeout>,
+    mut commands: Commands,
+    asset_server: Res<AssetServer>,
+    mut bubble_wave: ResMut<BubbleWaves>,
+    mut lock: ResMut<EnnemyWaveLock>,
+) {
     let wave = &bubble_wave.waves[bubble_wave.current_wave];
     let collectables = &bubble_wave.collectables[bubble_wave.current_wave];
 
@@ -115,8 +191,8 @@ fn change_wave(mut bubble_wave: ResMut<BubbleWaves>, mut commands: Commands, ass
     for (collectable_type, collectable_pos) in collectables {
         collectable_spawn(&mut commands, &asset_server, *collectable_type, *collectable_pos);
     }
-
     bubble_wave.current_wave += 1;
+    lock.0 = false; // Release lock, ennemy wave is spawnned
 }
 
 fn heal_kirby(query: Query<&mut Life, With<Kirby>>) {
@@ -129,6 +205,11 @@ pub struct WavePlugin;
 
 impl Plugin for WavePlugin {
     fn build(&self, app: &mut App) {
-        app.insert_resource(get_bubble_waves()).add_systems(Update, (change_wave, heal_kirby).run_if(no_ennemy_left));
+        app.insert_resource(get_bubble_waves())
+            .insert_resource(EnnemyWaveLock::default())
+            .add_systems(Update, (change_wave, heal_kirby).run_if(no_ennemy_left))
+            .add_systems(Update, next_wave_timer_system)
+            .add_observer(spawn_wave_ennemy)
+            .add_observer(delete_warning_sign);
     }
 }