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use bevy::prelude::*;
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use bevy_rapier2d::{prelude::*, rapier::prelude::CollisionEventFlags};
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use crate::{
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Enemy, Health,
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player::{Player, PlayerBullet},
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sound::{SoundEvent, SoundKind},
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};
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pub(crate) fn setup(rapier_config: Single<&mut RapierConfiguration>) {
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rapier_config.into_inner().gravity = Vec2::ZERO;
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}
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pub(crate) fn check_bullet_collisions(
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mut commands: Commands,
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player_bullet_query: Query<(Entity, &PlayerBullet)>,
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mut player_query: Query<(Entity, &mut Health), With<Player>>,
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enemy_query: Query<(Entity, &Transform), With<Enemy>>,
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mut collision_events: EventReader<CollisionEvent>,
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mut sound_events: EventWriter<SoundEvent>,
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) {
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// for (player_bullet, player_bullet_entity, player_bullet_transform) in &player_bullet_query {
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// for (enemy_entity, enemy_transform) in &enemy_query {
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// // TODO: rapier
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// if player_bullet_transform
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// .translation
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// .distance(enemy_transform.translation)
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// < 50.
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// {
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// commands.entity(player_bullet_entity).despawn();
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// commands.entity(enemy_entity).despawn();
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// sound_events.write(SoundEvent(SoundKind::Explosion));
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// }
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// }
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// }
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for collision_event in collision_events.read() {
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match collision_event {
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CollisionEvent::Started(a, b, CollisionEventFlags::SENSOR) => {
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match (
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player_bullet_query.get(a.clone()),
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player_bullet_query.get(b.clone()),
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) {
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(Ok((player_bullet_entity, player_bullet)), Err(_))
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| (Err(_), Ok((player_bullet_entity, player_bullet))) => {
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for (other_player_entity, mut other_player_health) in &mut player_query {
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if a == &other_player_entity || b == &other_player_entity {
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commands.entity(player_bullet_entity).despawn();
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other_player_health.current -= player_bullet.damage;
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if other_player_health.current <= 0. {
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commands.entity(other_player_entity).try_despawn();
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sound_events.write(SoundEvent(SoundKind::Explosion));
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} else {
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sound_events.write(SoundEvent(SoundKind::ShipDamage));
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}
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break;
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}
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}
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}
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_ => {}
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}
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}
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_ => {}
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}
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}
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}
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