support setting spawn point

src/main.rs

@@ -1,6 +1,9 @@
 use bevy::core_pipeline::tonemapping::Tonemapping;
+use bevy::ecs::component::ComponentId;
+use bevy::ecs::world::DeferredWorld;
 use bevy::math::*;
 use bevy::prelude::*;
+use bevy::render::view::ColorGrading;
 use bevy_flycam::prelude::*;
 use bevy_trenchbroom::prelude::*;
 
@@ -22,6 +25,37 @@ pub struct MyBaseClass {
 struct DebugVisuals {
     pub unlit: bool,
     pub tonemapping: Tonemapping,
+    pub exposure: f32,
+    pub shadows: bool,
+}
+
+#[derive(PointClass, Component, Reflect, Default)]
+#[reflect(Component)]
+#[require(Transform)]
+#[component(on_add = Self::on_add)]
+#[model({ "path": "models/spawn.glb", "scale": scale })]
+pub struct SpawnPoint {
+    scale: f32,
+}
+
+impl SpawnPoint {
+    fn on_add(mut world: DeferredWorld, entity: Entity, _id: ComponentId) {
+        let Some(asset_server) = world.get_resource::<AssetServer>() else {
+            return;
+        };
+
+        // let scale = world.entity(entity).get::<Self>().unwrap().scale;
+
+        let mut t = world.entity(entity).get::<Transform>().unwrap().clone();
+        t.scale = Vec3::splat(1.0);
+
+        let mesh = asset_server.load(GltfAssetLabel::Scene(0).from_asset("models/spawn.glb"));
+
+        world
+            .commands()
+            .entity(entity)
+            .insert((Name::new("spawn"), SceneRoot(mesh), t));
+    }
 }
 
 fn main() {
@@ -31,6 +65,8 @@ fn main() {
     app.insert_resource(DebugVisuals {
         unlit: true,
         tonemapping: Tonemapping::None,
+        exposure: 0.,
+        shadows: false,
     });
 
     app.add_plugins(DefaultPlugins.set(ImagePlugin {
@@ -54,7 +90,7 @@ fn main() {
 
     app.add_systems(Startup, write_trenchbroom_config);
     app.add_systems(PostStartup, setup_scene);
-    app.add_systems(Update, (set_materials_unlit, set_tonemapping));
+    app.add_systems(Update, (set_materials_unlit, set_tonemapping, set_shadows));
 
     app.run();
 }
@@ -84,9 +120,13 @@ fn write_trenchbroom_config(server: Res<TrenchBroomServer>) {
     server.config.write_folder("trenchbroom/hedz").unwrap()
 }
 
-fn set_tonemapping(mut cams: Query<&mut Tonemapping, With<Camera>>, visuals: Res<DebugVisuals>) {
-    for mut tm in cams.iter_mut() {
+fn set_tonemapping(
+    mut cams: Query<(&mut Tonemapping, &mut ColorGrading), With<Camera>>,
+    visuals: Res<DebugVisuals>,
+) {
+    for (mut tm, mut color) in cams.iter_mut() {
         *tm = visuals.tonemapping;
+        color.global.exposure = visuals.exposure;
     }
 }
 
@@ -102,3 +142,9 @@ fn set_materials_unlit(
         material.unlit = visuals.unlit;
     }
 }
+
+fn set_shadows(mut lights: Query<&mut DirectionalLight>, visuals: Res<DebugVisuals>) {
+    for mut l in lights.iter_mut() {
+        l.shadows_enabled = visuals.shadows;
+    }
+}