New bullet system #1

Merged
franklinblanco merged 2 commits from new_bullet_system into master 2023-11-28 14:45:31 +00:00
11 changed files with 135 additions and 36 deletions

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@ -47,7 +47,7 @@ Multiplayer
- [ ] Gun Bob on walk
- [ ] Reload animation (procedural)
- [ ] Real world magazines
- [ ] Rewriting bullet physics to use raycasts & kinematic rigidbodies (logic controlled)
- [x] Rewriting bullet physics to use raycasts & kinematic rigidbodies (logic controlled)
- [x] Create a Controls struct that holds mappings to all the game keys and replace them in all the game's code
- [x] Gun dropping drops on only one side of player
- [x] Gun dropping does not apply impulse for some reason...

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@ -1,14 +1,23 @@
use bevy::{
prelude::{Component, Vec3},
reflect::Reflect,
time::Timer,
time::Timer, ecs::{reflect::ReflectComponent, entity::Entity},
};
use crate::comps::core::weapons::caliber::Caliber;
#[derive(Component, Reflect)]
#[derive(PartialEq, Clone, Reflect)]
pub struct BulletHit {
pub entity: Entity,
pub position: Vec3,
}
#[derive(Component, Reflect, Default)]
#[reflect(Component)]
pub struct BulletMarker {
pub caliber: Caliber,
pub starting_point: Vec3,
pub timer: Timer,
pub current_velocity: Vec3,
pub hits: Vec<BulletHit>,
}

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@ -1,13 +1,15 @@
use bevy::reflect::Reflect;
#[allow(unused)]
#[derive(Clone, Reflect)]
#[derive(Clone, Reflect, Default)]
pub enum Caliber {
/// 5.56x45mm
NATO556,
/// 9x19mm
#[default]
Parabellum9mm,
/// 5.45x39mm
/// 5.45x39mm (7N6M)
/// Reference: [Wikipedia](https://en.wikipedia.org/wiki/5.45%C3%9739mm)
RU545
}
impl Caliber {
@ -32,11 +34,12 @@ impl Caliber {
Caliber::RU545 => 75.0,
}
}
/// Unit = kg
pub fn mass(&self) -> f32 {
match self {
Caliber::NATO556 => 0.1,
Caliber::NATO556 => 0.00402,
Caliber::Parabellum9mm => 0.05,
Caliber::RU545 => 0.07,
Caliber::RU545 => 0.00343,
}
}
pub fn linear_damping(&self) -> f32 {
@ -60,4 +63,20 @@ impl Caliber {
Caliber::RU545 => 0.06
}
}
/// Unit = m/s
pub fn muzzle_velocity(&self) -> f32 {
match self {
Caliber::NATO556 => 991.0,
Caliber::Parabellum9mm => todo!(),
Caliber::RU545 => 880.0,
}
}
/// Unit = m/s
pub fn velocity_shed(&self) -> f32 {
match self {
Caliber::NATO556 => todo!(),
Caliber::Parabellum9mm => todo!(),
Caliber::RU545 => 120.0,
}
}
}

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@ -68,7 +68,7 @@ pub fn despawn_stray_bullets(
}
}
fn spawn_bullet_hit_marker(
pub fn spawn_bullet_hit_marker(
commands: &mut Commands,
at: Vec3,
meshes: &mut ResMut<Assets<Mesh>>,

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@ -10,7 +10,6 @@ pub fn update_gun_position_on_collision(
mut events: EventReader<EquippedGunCollisionEvent>,
) {
for event in events.read() {
println!("Collision");
for mut player_firing_info in query.iter_mut() {
match event.collision_type {
CollisionEventType::Start => {
@ -19,7 +18,6 @@ pub fn update_gun_position_on_collision(
},
CollisionEventType::End => {
player_firing_info.gun_colliding_with_object = false;
//player_firing_info.gun_ready_pose = GunReadyPose::HighReady;
},
}
}

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@ -2,4 +2,5 @@ pub mod despawn_shots;
pub mod player_firing;
pub mod shoot;
pub mod inspect;
pub mod equipped_gun_collisions;
pub mod equipped_gun_collisions;
pub mod update_bullet;

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@ -1,9 +1,9 @@
use std::time::Duration;
use bevy::{prelude::*, render::render_resource::PrimitiveTopology};
use bevy::prelude::*;
use bevy_rapier3d::prelude::*;
use crate::{comps::core::{markers::{bullet::BulletMarker, muzzle_flash::MuzzleFlashMarker, collider_flags::ColliderFlags}, weapons::caliber::Caliber}, logic::core::player::player_settings::PlayerSettings};
use crate::comps::core::{markers::{bullet::BulletMarker, muzzle_flash::MuzzleFlashMarker, collider_flags::ColliderFlags}, weapons::caliber::Caliber};
pub fn shoot_bullet(
@ -14,7 +14,6 @@ pub fn shoot_bullet(
forward: Vec3,
up: Vec3,
caliber: Caliber,
player_settings: &Res<PlayerSettings>
) {
// Spawn muzzle flash LIGHT
commands.spawn((
@ -40,7 +39,7 @@ pub fn shoot_bullet(
));
// Spawn Line
if player_settings.shot_lines_enabled {
/*if player_settings.shot_lines_enabled {
commands.spawn(
MaterialMeshBundle {
mesh: {
@ -57,15 +56,15 @@ pub fn shoot_bullet(
..Default::default()
}
);
}
}*/
spawn_bullet(
commands,
meshes,
materials,
firing_point,
forward,
up,
forward,
caliber,
);
}
@ -75,8 +74,8 @@ pub fn spawn_bullet(
meshes: &mut ResMut<Assets<Mesh>>,
materials: &mut ResMut<Assets<StandardMaterial>>,
firing_point: Transform,
forward: Vec3,
_up: Vec3,
forward: Vec3,
caliber: Caliber,
) {
commands.spawn((
@ -88,6 +87,8 @@ pub fn spawn_bullet(
Duration::from_secs_f32(caliber.max_airtime_secs()),
TimerMode::Once,
),
current_velocity: forward * caliber.muzzle_velocity(),
hits: Vec::new()
},
MaterialMeshBundle {
mesh: {
@ -113,21 +114,8 @@ pub fn spawn_bullet(
transform: firing_point,
..Default::default()
},
RigidBody::Dynamic,
GravityScale(4.0),
Collider::ball(caliber.size()),
Velocity::zero(),
Damping {
linear_damping: caliber.linear_damping(),
angular_damping: caliber.angular_damping(),
},
ColliderMassProperties::Mass(caliber.mass()),
ExternalImpulse {
impulse: forward * caliber.impulse(),
torque_impulse: Vec3::ZERO,
},
RigidBody::KinematicPositionBased,
ActiveEvents::COLLISION_EVENTS,
CollisionGroups::new(Group::from_bits_retain(ColliderFlags::BULLETS.bits()), Group::from_bits_retain((ColliderFlags::SOLIDS | ColliderFlags::FLOOR).bits())),
Ccd::enabled(),
));
}

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@ -0,0 +1,83 @@
use bevy::{prelude::*, render::render_resource::PrimitiveTopology, ecs::system::SystemParam};
use bevy_rapier3d::prelude::*;
use crate::{comps::core::{markers::{bullet::{BulletMarker, BulletHit}, proxy::weapons::gun_colliders::GunFirearmCollider}, events::{bullet_collision::BulletCollisionEvent, collision_event_type::CollisionEventType}}, logic::core::player::player_settings::PlayerSettings};
#[derive(SystemParam)]
pub struct UpdateBulletQueryParams<'w, 's> {
bullets: Query<'w, 's, (Entity, &'static mut BulletMarker, &'static mut Transform)>,
firearm_colliders: Query<'w, 's, Entity, With<GunFirearmCollider>>,
}
pub fn update_bullet(
mut commands: Commands,
time: Res<Time>,
rapier_context: Res<RapierContext>,
mut meshes: ResMut<Assets<Mesh>>,
mut materials: ResMut<Assets<StandardMaterial>>,
player_settings: Res<PlayerSettings>,
mut query: UpdateBulletQueryParams,
mut bullet_collision_event: EventWriter<BulletCollisionEvent>,
) {
for (bullet, mut marker, mut transform) in query.bullets.iter_mut() {
let future_frame_pos = (marker.current_velocity * time.delta_seconds()) + (Vec3 { x: 0.0, y: -9.81, z: 0.0 } * time.delta_seconds() * marker.caliber.mass());
let max_toi = transform.translation.distance(future_frame_pos + transform.translation);
let mut query_filter = QueryFilter::default();
for firearm_collider in query.firearm_colliders.iter() {
query_filter = query_filter.exclude_collider(firearm_collider);
}
if let Some(bullet_hit) = raycast_until_destination(&rapier_context, query_filter, transform.translation, future_frame_pos, max_toi) {
if marker.hits.iter().find(|hit| hit.entity == bullet_hit.entity).is_none() {
marker.hits.push(bullet_hit.clone());
bullet_collision_event.send(BulletCollisionEvent { bullet, other: bullet_hit.entity, at: Transform::from_translation(bullet_hit.position), collision_type: CollisionEventType::Start })
}
}
if player_settings.shot_lines_enabled {
commands.spawn(
MaterialMeshBundle {
mesh: {
let mut mesh = Mesh::new(PrimitiveTopology::LineStrip);
mesh.insert_attribute(Mesh::ATTRIBUTE_POSITION, Vec::from([Vec3::ZERO, (future_frame_pos.normalize_or_zero() * max_toi)]));
meshes.add(mesh)
},
material: materials.add(StandardMaterial {
base_color: Color::RED,
emissive: Color::RED,
..Default::default()
}),
visibility: Visibility::Visible,
transform: *transform,
..Default::default()
}
);
}
// Raycast to future frame pos
transform.translation += future_frame_pos;
let vel_shed = marker.caliber.velocity_shed() * marker.current_velocity.normalize() * time.delta_seconds();
marker.current_velocity -= vel_shed;
}
}
fn raycast_until_destination(
rapier_context: &RapierContext,
query_filter: QueryFilter<'_>,
origin: Vec3,
dir: Vec3,
max_toi: f32,
) -> Option<BulletHit> {
if let Some((entity, toi)) = rapier_context.cast_ray(
origin,
dir,
max_toi,
true,
query_filter,
) {
return Some(BulletHit { entity, position: origin + dir * toi });
}
None
}

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@ -266,7 +266,6 @@ pub fn capture_hand_usage(
forward,
up,
firearm_data.caliber.clone(),
&resources.player_settings
);
// Increment indexes and timers
player_firing_info.current_round_index += 1;
@ -336,7 +335,7 @@ pub fn interact_action(
for player_entity in query.player_query.iter() {
for global_transform in query.camera_query.iter() {
let ray_pos = global_transform.translation();
let ray_dir = global_transform.forward() * 2.0; // TODO: Move this into global Resource state
let ray_dir = global_transform.forward() * 3.0; // TODO: Move this into global Resource state
let max_toi = 4.0;
let solid = true;

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@ -7,7 +7,7 @@ use crate::{
spawners::{player::player_spawner, spawn::SpawnerPlugin}, events::{bullet_collision::BulletCollisionEvent, equipped_gun_collision::EquippedGunCollisionEvent},
},
logic::core::{
guns::{despawn_shots::{despawn_muzzle_flashes, despawn_stray_bullets}, inspect::inspect_firearm, equipped_gun_collisions::update_gun_position_on_collision},
guns::{despawn_shots::{despawn_muzzle_flashes, despawn_stray_bullets}, inspect::inspect_firearm, equipped_gun_collisions::update_gun_position_on_collision, update_bullet::update_bullet},
player::{
camera_player_sync::{
follow_cursor_with_camera, update_camera_vertical_position, MouseMovementSettings,
@ -62,6 +62,7 @@ pub fn load_scene(application: &mut App) {
application.add_systems(Update, inspect_firearm);
application.add_systems(Update, collision_handler);
application.add_systems(Update, update_gun_position_on_collision);
application.add_systems(Update, update_bullet);
//application.add_systems(Update, animate_player);
//application.add_systems(Update, register_bullet_hits);

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@ -5,7 +5,7 @@ use bevy_inspector_egui::bevy_egui::EguiPlugin;
use crate::{
comps::core::{markers::{
holdable::{HoldableObjectData, InPlayerHands},
player::{Player, PlayerData, PlayerHand}, inspect_screen::InspectScreenSlotUiMarker,
player::{Player, PlayerData, PlayerHand}, inspect_screen::InspectScreenSlotUiMarker, bullet::BulletMarker,
}, weapons::{firearm_data::FirearmData, magazine_data::MagazineData, caliber::Caliber, firearm::Firearm, spray_pattern::FirearmSprayPattern, firearm_state::FirearmState}},
logic::core::{
guns::player_firing::PlayerFiringInfo,
@ -39,6 +39,7 @@ impl Plugin for MainEditorUiPlugin {
.register_type::<PlayerValuesState>()
.register_type::<FirearmData>()
.register_type::<MagazineData>()
.register_type::<BulletMarker>()
.register_type::<HoldableObjectData>()
.register_type::<InPlayerHands>()
.register_type::<PlayerData>()