bevy_lagrange 0.0.3

Bevy camera controller with pan, orbit, zoom-to-fit, queued animations, and trackpad support
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67

//! Demonstrates how to keep the camera's focus inside a shape.

use bevy::color::palettes::css::WHITE;
use bevy::prelude::*;
use bevy_brp_extras::BrpExtrasPlugin;
use bevy_lagrange::InputControl;
use bevy_lagrange::LagrangePlugin;
use bevy_lagrange::OrbitCam;
use bevy_lagrange::TrackpadInput;
use bevy_window_manager::WindowManagerPlugin;

fn main() {
    App::new()
        .add_plugins(DefaultPlugins)
        .add_plugins(LagrangePlugin)
        .add_plugins(BrpExtrasPlugin::default())
        .add_plugins(WindowManagerPlugin)
        .add_systems(Startup, setup)
        .add_systems(Update, show_bounds)
        .run();
}

fn setup(
    mut commands: Commands,
    mut meshes: ResMut<Assets<Mesh>>,
    mut materials: ResMut<Assets<StandardMaterial>>,
) {
    // Ground
    commands.spawn((
        Mesh3d(meshes.add(Plane3d::default().mesh().size(5.0, 5.0))),
        MeshMaterial3d(materials.add(Color::srgb(0.3, 0.5, 0.3))),
    ));
    // Cube
    commands.spawn((
        Mesh3d(meshes.add(Cuboid::new(1.0, 1.0, 1.0))),
        MeshMaterial3d(materials.add(Color::srgb(0.8, 0.7, 0.6))),
        Transform::from_xyz(0.0, 0.5, 0.0),
    ));
    // Light
    commands.spawn((
        PointLight {
            shadows_enabled: true,
            ..default()
        },
        Transform::from_xyz(4.0, 8.0, 4.0),
    ));
    // Camera
    commands.spawn((
        Transform::from_translation(Vec3::new(0.0, 1.5, 5.0)),
        OrbitCam {
            // Shape can take Cuboid or Sphere
            focus_bounds_shape: Some(Cuboid::new(1.0, 1.0, 1.0).into()),
            // Move the origin of the shape
            focus_bounds_origin: Vec3::splat(1.0),
            input_control: Some(InputControl {
                trackpad: Some(TrackpadInput::blender_default()),
                ..default()
            }),
            ..default()
        },
    ));
}

fn show_bounds(mut gizmos: Gizmos) {
    // Display focus bound shape
    gizmos.cube(Transform::from_translation(Vec3::splat(1.0)), WHITE);
}