2026-04-11 15:12:11 +03:00
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use crate::states::level::components::{
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Ball, BallProjectile, BallType, Cannon, LevelMarker, TrackPath, WaveState,
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};
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use crate::states::level::system::SLOT_SIZE;
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2026-04-10 20:28:55 +03:00
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use bevy::prelude::*;
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use bevy::window::PrimaryWindow;
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2026-04-11 15:12:11 +03:00
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pub fn setup_cannon(mut commands: Commands, asset_server: Res<AssetServer>) {
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2026-04-10 20:28:55 +03:00
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let texture: Handle<Image> = asset_server.load("cannon/cannon.png");
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commands.spawn((
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LevelMarker,
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Cannon,
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2026-04-11 15:12:11 +03:00
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Transform::from_xyz(579.0 - (1280.0 / 2.0), (768.0 / 2.0) - 150.0, 1.0),
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2026-04-10 20:28:55 +03:00
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Sprite::from_image(texture),
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Visibility::Visible,
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));
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}
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pub fn rotate_cannon(
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mut query: Query<&mut Transform, With<Cannon>>,
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window_query: Query<&Window, With<PrimaryWindow>>,
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camera_query: Query<(&Camera, &GlobalTransform)>,
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) {
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2026-04-11 15:12:11 +03:00
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let Ok(mut cannon_tf) = query.single_mut() else {
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return;
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};
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let Ok(window) = window_query.single() else {
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return;
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};
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let Some(cursor_pos) = window.cursor_position() else {
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return;
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};
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let Ok((camera, camera_tf)) = camera_query.single() else {
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return;
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};
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2026-04-10 20:28:55 +03:00
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// Конвертируем экранные координаты курсора в мировые
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2026-04-11 15:12:11 +03:00
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let Ok(world_cursor_pos) = camera.viewport_to_world_2d(camera_tf, cursor_pos) else {
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return;
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};
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2026-04-10 20:28:55 +03:00
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// Вектор направления от пушки к курсору
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let cannon_pos = Vec2::new(cannon_tf.translation.x, cannon_tf.translation.y);
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let direction = world_cursor_pos - cannon_pos;
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// Применяем вращение по оси Z
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let angle = direction.to_angle() - std::f32::consts::FRAC_PI_2;
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cannon_tf.rotation = Quat::from_rotation_z(angle);
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}
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pub fn spawn_projectile_from_cannon(
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mut commands: Commands,
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cannon_query: Query<&Transform, With<Cannon>>,
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mouse_input: Res<ButtonInput<MouseButton>>,
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asset_server: Res<AssetServer>,
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) {
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2026-04-11 15:12:11 +03:00
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if !mouse_input.just_pressed(MouseButton::Left) {
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return;
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}
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2026-04-11 15:12:11 +03:00
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let Ok(cannon_tf) = cannon_query.single() else {
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return;
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};
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2026-04-10 20:28:55 +03:00
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let ball_type = BallType::First; // TODO: рандом/цикл
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let image = asset_server.load(ball_type.asset_path());
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2026-04-11 15:12:11 +03:00
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let offset = 100.0; // сдвиг от центра к дулу пушки
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let direction = cannon_tf.rotation.mul_vec3(Vec3::Y).truncate().normalize();
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let spawn_pos_2d = cannon_tf.translation.truncate() + direction * offset;
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let spawn_pos = spawn_pos_2d.extend(10.0); // z=10, чтобы было поверх трека
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commands.spawn((
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LevelMarker,
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Transform::from_translation(spawn_pos),
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Sprite {
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image,
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custom_size: Some(Vec2::splat(SLOT_SIZE)),
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..default()
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},
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Visibility::Visible,
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BallProjectile {
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velocity: direction * 800.0,
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previous_position: spawn_pos_2d,
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ball_type,
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},
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));
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}
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pub fn move_projectiles(
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mut commands: Commands,
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mut projectiles: Query<(Entity, &mut BallProjectile, &mut Transform)>,
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time: Res<Time>,
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) {
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for (entity, mut proj, mut transform) in projectiles.iter_mut() {
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// Обновляем позицию
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let delta = proj.velocity * time.delta_secs();
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let new_pos = proj.previous_position + delta;
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2026-04-10 20:28:55 +03:00
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transform.translation = new_pos.extend(transform.translation.z);
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proj.previous_position = new_pos;
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// Опционально: удаляем снаряды, улетевшие за экран
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if new_pos.x.abs() > 2000.0 || new_pos.y.abs() > 2000.0 {
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commands.entity(entity).despawn();
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}
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}
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}
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const HIT_THRESHOLD: f32 = SLOT_SIZE;
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pub fn detect_projectile_hit(
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mut commands: Commands,
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track: Res<TrackPath>,
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mut wave: ResMut<WaveState>,
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mut projectiles: Query<(Entity, &mut BallProjectile)>,
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mut balls: Query<(Entity, &mut Ball)>,
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) {
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// пока идёт структурное изменение, спавн и другие мутации ждут
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if wave.is_queue_locked {
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return;
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}
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2026-04-11 15:14:27 +03:00
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for (proj_entity, proj) in projectiles.iter_mut() {
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2026-04-11 15:12:11 +03:00
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let mut min_dist_any = f32::MAX;
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let mut nearest_idx_any = 0;
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for (idx, &slot_pos) in track.points.iter().enumerate() {
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let dist = proj.previous_position.distance(slot_pos);
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if dist < min_dist_any {
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min_dist_any = dist;
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nearest_idx_any = idx;
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}
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}
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2026-04-11 15:12:11 +03:00
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// если снаряд далеко от трека - промах
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if min_dist_any > HIT_THRESHOLD {
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// commands.entity(proj_entity).despawn();
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continue;
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}
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2026-04-11 15:12:11 +03:00
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let insert_idx;
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let target_progress;
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2026-04-11 15:12:11 +03:00
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if let Some((_, target_ball)) = balls.iter().find(|(_, b)| b.slot_index == nearest_idx_any) {
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// Копируем значения в локальные переменные
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target_progress = target_ball.slot_progress;
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// Определяем индекс вставки
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insert_idx = if target_progress <= 0.5 {
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nearest_idx_any
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} else {
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nearest_idx_any + 1
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};
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} else {
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// Слот пуст — снаряд пролетает мимо
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commands.entity(proj_entity).despawn();
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continue;
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}
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wave.is_queue_locked = true;
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// сдвигаем очередь
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let max_idx = track.points.len() - 1;
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let mut to_despawn = Vec::new();
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for (entity, mut ball) in balls.iter_mut() {
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if ball.slot_index >= insert_idx {
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if ball.slot_index < max_idx {
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ball.slot_index += 1;
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} else {
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to_despawn.push(entity);
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};
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}
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}
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for entity in to_despawn {
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commands.entity(entity).despawn();
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}
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commands.entity(proj_entity).insert({
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Ball {
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ball_type: proj.ball_type,
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slot_index: insert_idx,
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slot_progress: target_progress,
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}
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}).remove::<BallProjectile>();
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}
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// Разблокировка (структурные изменения завершены)
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wave.is_queue_locked = false;
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}
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