297 lines
11 KiB
Rust
297 lines
11 KiB
Rust
use bevy::prelude::*;
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use bevy_xpbd_3d::prelude::*;
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use crate::{actor, audio, chat, nature, settings};
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pub const ENGINE_SPEED_FACTOR: f32 = 30.0;
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const MIN_INTERACT_DISTANCE: f32 = 30.0;
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const NO_RIDE: u32 = 0;
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pub struct ActorPlugin;
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impl Plugin for ActorPlugin {
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fn build(&self, app: &mut App) {
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app.add_systems(FixedUpdate, (
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update_physics_lifeforms,
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));
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app.add_systems(Update, (
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handle_input,
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handle_collisions,
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));
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app.add_systems(PostUpdate, (
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handle_vehicle_enter_exit,
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));
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app.add_event::<VehicleEnterExitEvent>();
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}
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}
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#[derive(Event)]
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pub struct VehicleEnterExitEvent {
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vehicle: Entity,
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driver: Entity,
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is_entering: bool,
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is_player: bool
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}
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#[derive(Component)]
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pub struct Actor {
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pub id: String,
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pub hp: f32,
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pub m: f32, // mass
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pub inside_entity: u32,
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pub camdistance: f32,
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}
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impl Default for Actor {
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fn default() -> Self {
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Self {
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id: "".to_string(),
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hp: 100.0,
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m: 100.0,
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inside_entity: NO_RIDE,
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camdistance: 15.0,
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}
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}
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}
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#[derive(Component)] pub struct Player; // Attached to the suit of the player
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#[derive(Component)] pub struct PlayerDrivesThis; // Attached to the entered vehicle
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#[derive(Component)] pub struct PlayerCamera; // Attached to the actor to use as point of view
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#[derive(Component)] pub struct PlayerInConversation;
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#[derive(Component)] pub struct InConversationWithPlayer;
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#[derive(Component)] pub struct ActorEnteringVehicle;
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#[derive(Component)] pub struct ActorVehicleBeingEntered;
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#[derive(Component)]
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pub struct LifeForm {
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pub is_alive: bool,
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pub adrenaline: f32,
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pub adrenaline_baseline: f32,
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pub adrenaline_jolt: f32,
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}
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impl Default for LifeForm { fn default() -> Self { Self {
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is_alive: true,
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adrenaline: 0.3,
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adrenaline_baseline: 0.3,
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adrenaline_jolt: 0.0,
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}}}
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#[derive(Component)]
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pub struct Vehicle {
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stored_drivers_collider: Option<Collider>,
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}
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impl Default for Vehicle { fn default() -> Self { Self {
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stored_drivers_collider: None,
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}}}
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#[derive(Copy, Clone, PartialEq)]
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pub enum EngineType {
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Monopropellant,
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Rocket,
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Ion,
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}
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#[derive(Component)]
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pub struct Engine {
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pub thrust_forward: f32,
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pub thrust_back: f32,
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pub thrust_sideways: f32,
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pub reaction_wheels: f32,
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pub engine_type: EngineType,
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pub warmup_seconds: f32,
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pub current_warmup: f32,
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}
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impl Default for Engine {
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fn default() -> Self {
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Self {
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thrust_forward: 1.0,
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thrust_back: 1.0,
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thrust_sideways: 1.0,
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reaction_wheels: 1.0,
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engine_type: EngineType::Monopropellant,
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warmup_seconds: 1.5,
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current_warmup: 0.0,
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}
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}
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}
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#[derive(Component)]
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pub struct Suit {
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pub oxygen: f32,
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pub power: f32,
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pub oxygen_max: f32,
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pub power_max: f32,
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pub integrity: f32, // [0.0 - 1.0]
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}
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impl Default for Suit { fn default() -> Self { SUIT_SIMPLE } }
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const SUIT_SIMPLE: Suit = Suit {
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power: 1e5,
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power_max: 1e5,
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oxygen: nature::OXY_D,
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oxygen_max: nature::OXY_D,
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integrity: 1.0,
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};
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pub fn update_physics_lifeforms(
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time: Res<Time>,
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mut query: Query<(&mut LifeForm, &mut Suit, &LinearVelocity)>,
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) {
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let d = time.delta_seconds();
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for (mut lifeform, mut suit, velocity) in query.iter_mut() {
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if lifeform.adrenaline_jolt.abs() > 1e-3 {
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lifeform.adrenaline_jolt *= 0.99;
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}
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else {
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lifeform.adrenaline_jolt = 0.0
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}
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let speed = velocity.length();
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if speed > 1000.0 {
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lifeform.adrenaline += 0.001;
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}
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lifeform.adrenaline = (lifeform.adrenaline - 0.0001 + lifeform.adrenaline_jolt * 0.01).clamp(0.0, 1.0);
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let mut oxygen_drain = nature::OXY_S;
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let integr_threshold = 0.5;
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if suit.integrity < integr_threshold {
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// The oxygen drain from suit integrity scales with (2 - 2x)^4,
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// which is a function with ~16 at x=0 and 0 at x=1.
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// Furthermore, x is divided by the integrity threshold (e.g. 0.5)
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// to squeeze the function horizontally, and change the range for
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// the x parameter from [0-1] to [0-integritythreshold]
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//
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// 16 |.
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// |.
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// |'.
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// | '.
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// | '..
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// |______''....
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// x=0 x=1
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let drain_scaling = (2.0 - 2.0 * suit.integrity / integr_threshold).powf(4.0);
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oxygen_drain += suit.oxygen * 0.01 * drain_scaling;
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}
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suit.oxygen = (suit.oxygen - oxygen_drain*d).clamp(0.0, suit.oxygen_max);
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}
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}
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pub fn handle_input(
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mut commands: Commands,
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keyboard_input: Res<ButtonInput<KeyCode>>,
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settings: ResMut<settings::Settings>,
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q_talker: Query<(&chat::Talker, &Transform), Without<actor::Player>>,
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mut player: Query<(Entity, &mut Actor, &mut Transform), With<actor::Player>>,
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mut q_vehicles: Query<(Entity, &mut Visibility, &Transform), (With<actor::Vehicle>, Without<actor::Player>)>,
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mut ew_conv: EventWriter<chat::StartConversationEvent>,
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mut ew_vehicle: EventWriter<VehicleEnterExitEvent>,
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q_player_drives: Query<Entity, With<PlayerDrivesThis>>,
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) {
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let mindist = MIN_INTERACT_DISTANCE * MIN_INTERACT_DISTANCE;
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if keyboard_input.just_pressed(settings.key_interact) {
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// Talking to people
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if let Ok((_player_entity, _player_actor, player)) = player.get_single() {
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for (talker, transform) in &q_talker {
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// TODO: replace Transform.translation with Position
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if transform.translation.distance_squared(player.translation) <= mindist {
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ew_conv.send(chat::StartConversationEvent{talker: talker.clone()});
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break;
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}
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}
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}
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// Entering Vehicles
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if q_player_drives.is_empty() {
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if let Ok((player_entity, _player_actor, player)) = player.get_single_mut() {
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for (vehicle_entity, _visibility, vehicle_transform) in q_vehicles.iter_mut() {
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if vehicle_transform.translation.distance_squared(player.translation) <= mindist {
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commands.entity(vehicle_entity).insert(ActorVehicleBeingEntered);
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commands.entity(player_entity).insert(ActorEnteringVehicle);
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ew_vehicle.send(VehicleEnterExitEvent{
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vehicle: vehicle_entity,
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driver: player_entity,
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is_entering: q_player_drives.is_empty(),
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is_player: true,
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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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else if keyboard_input.just_pressed(settings.key_vehicle) {
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// Exiting Vehicles
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if let Ok((player_entity, _player_actor, _player)) = player.get_single_mut() {
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for vehicle_entity in &q_player_drives {
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commands.entity(vehicle_entity).insert(ActorVehicleBeingEntered);
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commands.entity(player_entity).insert(ActorEnteringVehicle);
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ew_vehicle.send(VehicleEnterExitEvent{
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vehicle: vehicle_entity,
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driver: player_entity,
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is_entering: false,
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is_player: true,
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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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pub fn handle_vehicle_enter_exit(
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mut commands: Commands,
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mut er_vehicle: EventReader<VehicleEnterExitEvent>,
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mut q_drivers: Query<(Entity, &mut Visibility, Option<&Collider>), (Without<ActorVehicleBeingEntered>, With<ActorEnteringVehicle>)>,
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mut q_vehicles: Query<(Entity, &mut Vehicle, &mut Visibility), (With<ActorVehicleBeingEntered>, Without<ActorEnteringVehicle>)>,
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mut ew_sfx: EventWriter<audio::PlaySfxEvent>,
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) {
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for event in er_vehicle.read() {
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for (driver, mut driver_vis, driver_collider) in q_drivers.iter_mut() {
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if driver == event.driver {
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for (vehicle, mut vehicle_component, mut vehicle_vis) in q_vehicles.iter_mut() {
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if !event.is_player {
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continue;
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}
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if vehicle == event.vehicle {
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if event.is_entering {
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// Entering Vehicle
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if let Some(collider) = driver_collider {
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vehicle_component.stored_drivers_collider = Some(collider.clone());
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}
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commands.entity(driver).remove::<RigidBody>();
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*driver_vis = Visibility::Hidden; //seems to have no effect...
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ew_sfx.send(audio::PlaySfxEvent(audio::Sfx::EnterVehicle));
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commands.entity(driver).remove::<PlayerCamera>();
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commands.entity(driver).remove::<Collider>();
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commands.entity(vehicle).insert(PlayerCamera);
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commands.entity(vehicle).insert(PlayerDrivesThis);
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}
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else {
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// Exiting Vehicle
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if let Some(collider) = &vehicle_component.stored_drivers_collider {
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commands.entity(driver).insert(collider.clone());
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}
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commands.entity(driver).insert(RigidBody::Dynamic);
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ew_sfx.send(audio::PlaySfxEvent(audio::Sfx::Switch));
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commands.entity(vehicle).remove::<PlayerCamera>();
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commands.entity(driver).insert(PlayerCamera);
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commands.entity(vehicle).remove::<PlayerDrivesThis>();
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*vehicle_vis = Visibility::Visible;
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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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fn handle_collisions(
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mut collision_event_reader: EventReader<CollisionStarted>,
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mut ew_sfx: EventWriter<audio::PlaySfxEvent>,
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q_player: Query<Entity, With<PlayerCamera>>,
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mut q_player_lifeform: Query<&mut LifeForm, With<Player>>,
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) {
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if let (Ok(player), Ok(mut lifeform)) = (q_player.get_single(), q_player_lifeform.get_single_mut()) {
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for CollisionStarted(entity1, entity2) in collision_event_reader.read() {
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if *entity1 == player || *entity2 == player {
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ew_sfx.send(audio::PlaySfxEvent(audio::Sfx::Crash));
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lifeform.adrenaline_jolt += 0.1;
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}
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}
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}
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}
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