bevy_orbit_camera/
lib.rs

1pub mod automatic;
2mod control;
3mod transform;
4
5pub use control::Controller;
6pub use transform::LookTransform;
7
8use bevy::prelude::*;
9
10pub struct OrbitCameraPlugin;
11impl Plugin for OrbitCameraPlugin {
12    fn build(&self, app: &mut App) {
13        app.init_resource::<automatic::AutomaticRotation>()
14            .add_systems(
15                Update,
16                (control::system, automatic::update, transform::system).chain(),
17            );
18    }
19}
20
21#[derive(Bundle)]
22pub struct OrbitCameraBundle {
23    controller: control::Controller,
24    controller_state: control::OrbitControllerState,
25    look_transform: transform::LookTransform,
26    transform: Transform,
27}
28impl OrbitCameraBundle {
29    pub fn new(controller: control::Controller, eye: Vec3, target: Vec3, up: Vec3) -> Self {
30        let look_transform = transform::LookTransform::new(eye, target, up);
31        let up = up.try_normalize().unwrap_or(Vec3::Y);
32        let controller_state = (target - eye)
33            .try_normalize()
34            .map(|forward| control::OrbitControllerState::from_forward(forward, up))
35            .unwrap_or_else(|| control::OrbitControllerState::from_forward(Vec3::NEG_Z, up));
36
37        Self {
38            controller,
39            controller_state,
40            look_transform,
41            transform: look_transform.into(),
42        }
43    }
44}
bevy_orbit_camera/lib.rs

bevy_orbit_camera/
lib.rs
