Successfully parsing camera component

Now need to get the game to actually use the camera...

assets/levels/00/entities/camera.entity

@@ -1,4 +1,4 @@
 name camera
 uuid 2e45b7e9-6722-4d50-8ea5-67f25b8b0f62
-transform translation -5.0 5.0 5.0 rotation 0.0 0.0 0.0 1.0 scale 1.0 1.0 1.0
+transform translation 2.0 2.0 0.0 rotation 0.0 0.0 0.0 1.0 scale 1.0 1.0 1.0
 camera

src/editor.rs

@@ -1,3 +1,5 @@
+use bevy::render::primitives::Aabb;
+
 use crate::prelude::*;
 
 pub(crate) struct EditorPlugin;
@@ -12,14 +14,16 @@ impl Plugin for EditorPlugin {
             )
             .add_systems(
                 Update,
-                toggle_editor_window.run_if(state_changed::<EditorState>),
+                (
+                    toggle_editor_window,
+                    toggle_entity_aabb,
+                ).run_if(state_changed::<EditorState>),
             )
             .add_systems(
                 Update,
                 (
                     handle_window_close.run_if(on_event::<WindowCloseRequested>()),
                     plane_gizmos,
-                    // fly_camera,
                 )
                     .run_if(in_state(EditorState::Open)),
             );
@@ -28,7 +32,7 @@ impl Plugin for EditorPlugin {
 
 /// Tracking the open/closed state of the editor
 #[derive(States, Debug, Clone, PartialEq, Eq, Hash, Default, Component)]
-enum EditorState {
+pub(crate) enum EditorState {
     /// The editor is closed => the editor window is disabled
     #[default]
     Closed,
@@ -181,3 +185,43 @@ fn plane_gizmos(mut gizmos: Gizmos) {
         gizmos.arrow(Vec3::ZERO, Vec3::Z, Color::BLUE);
     }
 }
+
+fn toggle_entity_aabb(
+    state: Res<State<EditorState>>,
+    query: Query<Entity, With<Handle<SaveEntity>>>,
+    children: Query<&Children>,
+    aabbs: Query<(Entity, &Aabb)>,
+    mut commands: Commands,
+) {
+    let add_component = match state.get() {
+        EditorState::Open => true,
+        EditorState::Closed => false,
+    };
+    query.iter().for_each(|root| {
+        if add_component {
+            commands.entity(root).insert(ShowAabbGizmo { ..default() });
+        } else {
+            commands.entity(root).remove::<ShowAabbGizmo>();
+        }
+
+        let mut child_has_bounding_box = false;
+        for child in children.iter_descendants(root) {
+            if add_component {
+                commands.entity(child).insert(ShowAabbGizmo { ..default() });
+            } else {
+                commands.entity(child).remove::<ShowAabbGizmo>();
+            }
+            if aabbs.contains(child) {
+                commands.entity(child).insert(Aabb { center: Vec3A::ZERO, half_extents: Vec3A::ONE });
+            } else {
+                child_has_bounding_box = true;
+            }
+        }
+
+        if !aabbs.contains(root) && !child_has_bounding_box {
+            commands.entity(root).insert(Aabb { center: Vec3A::ZERO, half_extents: Vec3A::ONE });
+        } else {
+            commands.entity(root).remove::<Aabb>();
+        }
+    })
+}

src/menu.rs

@@ -4,7 +4,7 @@ pub(crate) struct MenuPlugin;
 
 impl Plugin for MenuPlugin {
     fn build(&self, app: &mut App) {
-        app.add_systems(Startup, init_menu);
+        // app.add_systems(Startup, init_menu);
     }
 }
 

src/prelude.rs

@@ -10,10 +10,14 @@ pub(crate) use bevy::window::PrimaryWindow;
 pub(crate) use bevy::window::WindowCloseRequested;
 pub(crate) use bevy::window::WindowRef;
 pub(crate) use nom::bytes::complete::tag;
-pub(crate) use nom::bytes::complete::take;
+pub(crate) use nom::character::complete::space1;
 pub(crate) use nom::bytes::complete::take_until1;
 pub(crate) use nom::number::complete::float;
 pub(crate) use nom::sequence::tuple;
+pub(crate) use bevy::{gltf::Gltf, math::Vec3A};
+pub(crate) use nom::IResult;
+
 
 pub(crate) use crate::camera::*;
 pub(crate) use crate::conditions::*;
+pub(crate) use crate::save::*;

src/save.rs

@@ -1,6 +1,3 @@
-use bevy::{gltf::Gltf, math::Vec3A, render::primitives::Aabb};
-use nom::IResult;
-
 use crate::prelude::*;
 
 /// Menu Plugin; empty struct for Plugin impl
@@ -19,11 +16,13 @@ impl Plugin for SavePlugin {
 }
 
 #[derive(Asset, TypePath, Debug, Default)]
-struct SaveEntity {
+pub(crate) struct SaveEntity {
     transform: Option<Transform>,
     name: Option<Name>,
     uuid: Option<EntityUuid>,
     model: Option<(Handle<Gltf>, String)>,
+    // TODO: Option<bool> feels like an antipattern as this is either Some(true) or None and never Some(false).
+    // Either encode more Camera data in this or replace it with Option<()> or just bool.
     camera: Option<bool>,
 }
 
@@ -44,8 +43,8 @@ impl SaveEntity {
             } else if let Ok((gltf_path, scene_name)) = parse::parse_save_model(line) {
                 let handle = load_context.load(gltf_path);
                 entity.model = Some((handle, scene_name));
-            } else if let Ok(is_camera) = parse::parse_save_camera(line) {
-                entity.camera = Some(is_camera);
+            } else if let Ok(true) = parse::parse_save_camera(line) {
+                entity.camera = Some(true);
             }
         });
         Ok(entity)
@@ -78,23 +77,25 @@ mod parse {
         }
     }
 
-    fn parse_thing<'a>(s: &'a str, l: &'a str) -> IResult<&'a str, &'a str> {
-        tag(l)(s)
+    fn parse_word<'a>(w: &'a str) -> impl Fn(&'a str) -> IResult<&'a str, &'a str> {
+        move |i: &'a str| {
+            tag(w)(i)
+        }
     }
 
     fn parse_xyz(i: &str) -> IResult<&str, (f32, f32, f32)> {
-        tuple((float, take(1usize), float, take(1usize), float))(i)
+        tuple((float, space1, float, space1, float))(i)
             .map(|(s, (x, _, y, _, z))| (s, (x, y, z)))
     }
 
     fn parse_wxyz(i: &str) -> IResult<&str, (f32, f32, f32, f32)> {
         tuple((
             float,
-            take(1usize),
+            space1,
             float,
-            take(1usize),
+            space1,
             float,
-            take(1usize),
+            space1,
             float,
         ))(i)
         .map(|(s, (w, _, x, _, y, _, z))| (s, (w, x, y, z)))
@@ -120,16 +121,14 @@ mod parse {
 
         let mut curr = rem.trim_start();
         for _ in 0..3 {
-            if let Ok((input, _)) = parse_thing(curr, "translation") {
-                let (rem, (x, y, z)) = parse_xyz(input.trim_start())?;
+            println!("Curr: {:?}", curr);
+            if let Ok((rem, (_, _, (x, y, z)))) = tuple((parse_word("translation"), space1, parse_xyz))(curr.trim_start()) {
                 transform.translation = Vec3::new(x, y, z);
                 curr = rem.trim_start();
-            } else if let Ok((input, _)) = parse_thing(curr.trim_start(), "rotation") {
-                let (rem, (x, y, z, w)) = parse_wxyz(input.trim_start())?;
+            } else if let Ok((rem, (_, _, (x, y, z, w)))) = tuple((parse_word("rotation"), space1, parse_wxyz))(curr.trim_start()) {
                 transform.rotation = Quat::from_xyzw(x, y, z, w);
                 curr = rem.trim_start();
-            } else if let Ok((input, _)) = parse_thing(curr.trim_start(), "scale") {
-                let (rem, (x, y, z)) = parse_xyz(input.trim_start())?;
+            } else if let Ok((rem, (_, _, (x, y, z)))) = tuple((parse_word("scale"), space1, parse_xyz))(curr.trim_start()) {
                 transform.scale = Vec3::new(x, y, z);
                 curr = rem.trim_start();
             } else {
@@ -219,9 +218,9 @@ mod parse {
     pub(crate) fn parse_save_model(line: &str) -> Result<(String, String), SaveEntityParseError> {
         let (rem, (_, _, gltf_name, _, scene_name)) = tuple((
             tag("model"),
-            take(1usize),
+            space1,
             parse_string,
-            take(1usize),
+            space1,
             parse_string,
         ))(line)?;
 
@@ -254,9 +253,8 @@ mod parse {
         }
         {
             let line = "notcamera";
-            let parsed = parse_save_camera(line).unwrap();
-            let expected = false;
-            assert_eq!(parsed, expected);
+            let parsed = parse_save_camera(line);
+            assert!(parsed.is_err());
         }
     }
 }
@@ -302,11 +300,6 @@ fn test_save_entity(loader: Res<AssetServer>, mut commands: Commands) {
     commands.spawn((
         SpatialBundle { ..default() },
         handle,
-        ShowAabbGizmo { ..default() },
-        Aabb {
-            center: Vec3A::ZERO,
-            half_extents: Vec3A::ONE,
-        },
     ));
 }