48 lines
1.6 KiB
Rust
48 lines
1.6 KiB
Rust
use bevy::{app::AppExit, ecs::event::ManualEventReader, prelude::*};
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use bevy_scriptum::{prelude::*, Script, ScriptData, ScriptingRuntime};
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fn main() {
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App::new()
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// This is just needed for headless console app, not needed for a regular bevy game
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// that uses a winit window
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.set_runner(move |mut app: App| {
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let mut app_exit_event_reader = ManualEventReader::<AppExit>::default();
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loop {
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if let Some(app_exit_events) = app.world.get_resource_mut::<Events<AppExit>>() {
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if app_exit_event_reader
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.read(&app_exit_events)
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.last()
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.is_some()
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{
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break;
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}
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}
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app.update();
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}
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})
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.add_plugins(DefaultPlugins)
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.add_plugins(ScriptingPlugin)
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.add_systems(Startup, startup)
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.add_systems(Update, call_rhai_on_update_from_rust)
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.add_script_function(String::from("quit"), |mut exit: EventWriter<AppExit>| {
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exit.send(AppExit);
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})
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.run();
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}
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fn startup(mut commands: Commands, assets_server: Res<AssetServer>) {
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commands.spawn(Script::new(
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assets_server.load("examples/call_function_from_rust.rhai"),
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));
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}
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fn call_rhai_on_update_from_rust(
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mut scripted_entities: Query<(Entity, &mut ScriptData)>,
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mut scripting_runtime: ResMut<ScriptingRuntime>,
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) {
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for (entity, mut script_data) in &mut scripted_entities {
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scripting_runtime
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.call_fn("on_update", &mut script_data, entity, ())
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.unwrap();
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}
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}
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