Blender_bevy_components_workflow/examples/save_load/src/main.rs

use std::any::TypeId;

use bevy::{prelude::*, utils::hashbrown::HashSet};
use blenvy::{
    AddToGameWorld, BlenvyPlugin, BlueprintInfo, BlueprintWorld, Dynamic, HideUntilReady,
    LoadingRequest, SavingRequest, SpawnBlueprint,
};
use rand::Rng;

// mod game;
// use game::*;

mod component_examples;
use bevy_inspector_egui::quick::WorldInspectorPlugin;
use component_examples::*;

fn main() {
    App::new()
        .add_plugins((
            DefaultPlugins.set(AssetPlugin::default()),
            WorldInspectorPlugin::new(),
            BlenvyPlugin {
                save_component_filter: SceneFilter::Allowlist(HashSet::from([
                    TypeId::of::<Name>(),
                    TypeId::of::<Transform>(),
                    //TypeId::of::<Velocity>(),
                    TypeId::of::<InheritedVisibility>(),
                    TypeId::of::<Camera>(),
                    TypeId::of::<Camera3d>(),
                    //TypeId::of::<Tonemapping>(),
                    //TypeId::of::<CameraTrackingOffset>(),
                    TypeId::of::<Projection>(),
                    //TypeId::of::<CameraRenderGraph>(),
                    //TypeId::of::<Frustum>(),
                    TypeId::of::<GlobalTransform>(),
                    //TypeId::of::<VisibleEntities>(),
                    //TypeId::of::<Pickable>(),
                ])),
                ..Default::default()
            },
            // our custom plugins
            // GamePlugin,           // specific to our game
            ComponentsExamplesPlugin, // Showcases different type of components /structs
        ))
        .add_systems(Startup, setup_game)
        .add_systems(
            Update,
            (spawn_blueprint_instance, move_movers, save_game, load_game),
        )
        .run();
}

// this is how you setup & spawn a level from a blueprint
fn setup_game(mut commands: Commands) {
    // would be nice: contains both static & dynamic stuff
    commands.spawn((
        BlueprintWorld::from_path("levels/World.glb"), // will take care of loading both static & dynamic data
    ));
}

// you can also spawn blueprint instances at runtime
fn spawn_blueprint_instance(keycode: Res<ButtonInput<KeyCode>>, mut commands: Commands) {
    if keycode.just_pressed(KeyCode::KeyT) {
        // random position
        let mut rng = rand::thread_rng();
        let range = 5.5;
        let x: f32 = rng.gen_range(-range..range);
        let y: f32 = rng.gen_range(-range..range);

        // random name
        let name_index: u64 = rng.gen();

        commands.spawn((
            BlueprintInfo::from_path("blueprints/test.glb"),
            SpawnBlueprint,
            Dynamic,
            bevy::prelude::Name::from(format!("test{}", name_index)),
            HideUntilReady,
            AddToGameWorld,
            TransformBundle::from_transform(Transform::from_xyz(x, 2.0, y)),
        ));
    }
}

fn move_movers(mut movers: Query<&mut Transform, With<Dynamic>>) {
    for mut transform in movers.iter_mut() {
        // println!("moving dynamic entity");
        transform.translation.x += 0.005;
    }
}

fn save_game(keycode: Res<ButtonInput<KeyCode>>, mut save_requests: EventWriter<SavingRequest>) {
    if keycode.just_pressed(KeyCode::KeyS) {
        save_requests.send(SavingRequest {
            path: "scenes/save.scn.ron".into(),
        });
    }
}

fn load_game(keycode: Res<ButtonInput<KeyCode>>, mut load_requests: EventWriter<LoadingRequest>) {
    if keycode.just_pressed(KeyCode::KeyL) {
        load_requests.send(LoadingRequest {
            path: "scenes/save.scn.ron".into(),
        });
    }
}