我正在使用 bevy 0.14 开发游戏。我正在慢慢地阅读手册。我尝试使用 rapier3d 检测碰撞。
由于没有反应，我想检查一下设置是否不正确。
我检查了几次手册并继续编码，但没有检测到崩溃事件，所以我想知道我的代码有什么问题。
下面的代码是我到目前为止的代码。为什么这里没有发生崩溃事件？
use bevy::input::mouse::{MouseMotion, MouseWheel};
use bevy::prelude::*;
use bevy_rapier3d::prelude::*;
fn main() {
App::new().
add_plugins(DefaultPlugins).
add_plugins(RapierPhysicsPlugin::<NoUserData>::default()).
add_plugins(RapierDebugRenderPlugin::default()).
add_systems(Startup, init_object).
add_systems(Update, (player_movement, camera_movement)).
add_systems(PostUpdate, landed_player_check).
run();
}
// 플레이어 컴포넌트 정의
#[derive(Component)]
struct Player {
is_jumping: bool,
}
impl Default for Player {
fn default() -> Self {
Self {is_jumping: false}
}
}
#[derive(Component)]
struct Camera;
#[derive(Component)]
struct CameraFollow {
offset: Vec3,
}
#[derive(Component)]
struct Ground;
fn init_object(
mut commands: Commands,
mut meshes: ResMut<Assets<Mesh>>,
mut materials: ResMut<Assets<StandardMaterial>>,
) {
// 바닥
commands.spawn((
PbrBundle {
mesh: meshes.add(Plane3d::default().mesh().size(20., 20.)),
material: materials.add(Color::srgb_u8(255, 0, 0)),
transform: Transform::from_xyz(0.0, 0.0, 0.0),
..default()
},
Collider::cuboid(10.0, 0.0, 10.0),
Ground,
));
// 플레이어
commands.spawn((
PbrBundle {
mesh: meshes.add(Cuboid::new(1.0, 1.0, 1.0)),
transform: Transform::from_xyz(0.0, 1.0, 0.0), 킴
material: materials.add(StandardMaterial {
base_color: Color::WHITE,
..default()
}),
..default()
},
Player::default(),
RigidBody::Dynamic,
Collider::cuboid(0.5, 0.5, 0.5),
GravityScale(10.0),
));
// 빛
commands.spawn(DirectionalLightBundle {
transform: Transform::from_translation(Vec3::ONE).looking_at(Vec3::ZERO, Vec3::Y),
..default()
});
// 카메라
commands.spawn((
Camera3dBundle {
transform: Transform::from_xyz(0.0, 10.0, 10.0).looking_at(Vec3::ZERO, Vec3::Y),
..default()
},
Camera,
CameraFollow {
offset: Vec3::new(0.0, 10.0, 10.0),
},
));
}
fn player_movement(
mut query: Query<(&mut Transform, &mut Player), With<Player>>,
keyboard_input: Res<ButtonInput<KeyCode>>,
time: Res<Time>,
) {
let speed = 10.0;
// 쿼리된 엔티티들의 Transform 반복 처리
if let Ok((mut transform, mut player_state)) = query.get_single_mut() {
if !player_state.is_jumping {
let mut direction = Vec3::ZERO;
if keyboard_input.pressed(KeyCode::KeyW) {
direction.z -= 1.0;
}
if keyboard_input.pressed(KeyCode::KeyS) {
direction.z += 1.0;
}
if keyboard_input.pressed(KeyCode::KeyA) {
direction.x -= 1.0;
}
if keyboard_input.pressed(KeyCode::KeyD) {
direction.x += 1.0;
}
if keyboard_input.pressed(KeyCode::Space) {
player_state.is_jumping = true;
direction.y += 10.0;
}
transform.translation += direction * speed * time.delta_seconds();
}
}
}
fn camera_movement(
mut param_set: ParamSet<(
Query<(&mut Transform, &mut Player), With<Player>>, // 플레이어 쿼리
Query<(&mut Transform, &mut CameraFollow), With<Camera>>, // 카메라 쿼리
)>,
mouse_button: Res<ButtonInput<MouseButton>>,
mut mouse_motion: EventReader<MouseMotion>,
mut wheel_event: EventReader<MouseWheel>,
) {
let zoom_speed = 0.5;
// 마우스 중앙 버튼을 누른 경우, 카메라 회전을 처리합니다.
if mouse_button.pressed(MouseButton::Middle) {
for mouse_move_event in mouse_motion.read() {
if let Ok((player_transform, _)) = param_set.p0().get_single() {
let player_position = player_transform.translation; // 플레이어 위치를 먼저 가져옴
if let Ok((mut camera_transform, mut camera_follow)) = param_set.p1().get_single_mut() {
// 좌우 회전은 월드 Y축, 상하 회전은 카메라 로컬 X축을 기준으로 처리
// 음수를 곱해 마우스 이동 방향을 반전시킴
let rotation = Quat::from_rotation_y(-mouse_move_event.delta.x * 0.005)
* Quat::from_axis_angle(*camera_transform.local_x(), -mouse_move_event.delta.y * 0.005);
// 카메라 오프셋을 회전시켜 새로운 위치 계산
camera_follow.offset = rotation * camera_follow.offset;
camera_transform.translation = player_position + camera_follow.offset;
// 카메라가 항상 플레이어를 바라보도록 설정
camera_transform.look_at(player_position, Vec3::Y);
}
}
}
}
// 이제 카메라의 위치를 수정합니다.
if let Ok((player_transform, _)) = param_set.p0().get_single() {
let player_position = player_transform.translation;
if let Ok((mut camera_transform, camera_follow)) = param_set.p1().get_single_mut() {
camera_transform.translation = player_position + camera_follow.offset;
camera_transform.look_at(player_position, Vec3::Y);
}
}
// 휠로 줌을 조정할 때, 오프셋을 Z축 방향으로만 조정합니다.
for v in wheel_event.read() {
if let Ok((_, mut camera_follow)) = param_set.p1().get_single_mut() {
// Z축 오프셋만 조정하여 줌을 적용
let zoom_delta = -v.y * zoom_speed;
let offset_length = camera_follow.offset.length();
// 줌 범위를 제한하고 오프셋을 조정
let new_length = (offset_length + zoom_delta).clamp(5.0, 20.0);
camera_follow.offset = camera_follow.offset.normalize() * new_length;
}
}
}
fn landed_player_check(
mut collision_events: EventReader<CollisionEvent>,
player_query: Query<Entity, With<Player>>,
ground_query: Query<Entity, With<Ground>>,
) {
let player_entity = player_query.get_single().ok();
let ground_entity = ground_query.get_single().ok();
for event in collision_events.read() {
println!("Collision event detected: {:?}", event);
match event {
CollisionEvent::Started(entity1, entity2, _) => {
println!("entity1: {:?}, entity2: {:?}", entity1, entity2);
if let (Some(player), Some(ground)) = (player_entity, ground_entity) {
println!("Player Entity: {:?}, Ground Entity: {:?}", player, ground);
if (*entity1 == player && *entity2 == ground) || (*entity1 == ground && *entity2 == player) {
println!("플레이어가 바닥에 닿았습니다.");
} else {
println!("충돌은 발생했지만 플레이어와 바닥이 아닙니다.");
}
}
}
_ => {}
}
}
}
我最近也在努力解决这个问题，根据https://rapier.rs/docs/user_guides/bevy_plugin/colliders#active-collision-types，你必须明确启用特定类型的刚体和碰撞器之间的碰撞。检查 ActiveCollisionTypes 的文档以了解您需要哪些标志。