From fbc9389f57cdcb91e50a6c524f80f567df1b7692 Mon Sep 17 00:00:00 2001
From: Elijah Voigt <elijah.caine.mv@gmail.com>
Date: Thu, 16 Jul 2026 16:15:44 -0700
Subject: [PATCH] Debug info: acive cell info

---
 life/src/actions.rs |  2 ++
 life/src/main.rs    | 50 ++++++++++++++++++++++++++++++++++++++++-----
 2 files changed, 47 insertions(+), 5 deletions(-)

diff --git a/life/src/actions.rs b/life/src/actions.rs
index 0e0f9fd..31e4a49 100644
--- a/life/src/actions.rs
+++ b/life/src/actions.rs
@@ -69,6 +69,7 @@ impl SimAction {
         mut lifecycle: MessageWriter<Lifecycle>,
         cells: Query<Entity, With<Cell>>,
         mut commands: Commands,
+        mut playback: ResMut<NextState<SimulationPlayback>>,
     ) {
         // TODO: reconcile board instead of despawn/spawning the world
         cells.iter().for_each(|e| {
@@ -77,6 +78,7 @@ impl SimAction {
         last_board_state.coordinates.iter().for_each(|c| {
             lifecycle.write(Lifecycle::Alive(c.clone()));
         });
+        playback.set(SimulationPlayback::Pause);
     }
 
     // Wipe all cells from the board
diff --git a/life/src/main.rs b/life/src/main.rs
index b9ae0a1..20c9fcc 100644
--- a/life/src/main.rs
+++ b/life/src/main.rs
@@ -1,12 +1,13 @@
 // TODO:
-//  * Debug Panel
-//      * Describe cell I am hovering over (Note, Octave, etc)
 //  * Fix tiling repeating
 //      * Negative coordinates should not mirror
 //  * Fix randomly audio not working
-//  * On reset: pause
+//  * Make click and drag feel better
 //  * Show shadow of piece (same tile, just with alpha transparency)
-//  * UI: Swap buttons mutually exclusive instead of disabling
+//  * UI widget explaining rules/hotkeys
+//  * UI minimize widgets
+//  * Start with an interesting pattern
+//  * Lock down system scheduling/run_if conditions
 #![allow(clippy::complexity)]
 // Only because of FromTemplat macros unfortunately...
 #![allow(dead_code)]
@@ -83,6 +84,7 @@ fn main() {
                 grid_gizmo,
                 update_debug_info_cell_count,
                 update_debug_info_coordinates,
+                update_debug_info_active,
             ),
         )
         // Ui Controllers
@@ -110,6 +112,7 @@ const SCALE: f32 = 100.0;
 enum DebugInfo {
     CellCount,
     Coordinates,
+    Active,
     #[default]
     Empty,
 }
@@ -342,6 +345,27 @@ fn debug_ui() -> impl Scene {
                     Children [
                         Text("##,##") ThemedText template_value(DebugInfo::Coordinates)
                     ]
+                ],
+                subpane()
+                Node {
+                    display: Display::Flex,
+                    flex_direction: FlexDirection::Row,
+                }
+                Children [
+                    subpane_header() Children [
+                        Text("Active Cell") ThemedText
+                    ]
+                    subpane_body()
+                    Node {
+                        display: Display::Flex,
+                        flex_direction: FlexDirection::Row,
+                        align_items: AlignItems::Stretch,
+                        justify_content: JustifyContent::Start,
+                    }
+                    text_setup()
+                    Children [
+                        Text("Foo/Bar") ThemedText template_value(DebugInfo::Active)
+                    ]
                 ]
             ]
         ]
@@ -584,7 +608,7 @@ impl Coordinates {
     }
 }
 
-/// When the cursor moves, update the Coordiantes
+/// When the cursor moves, update the Coordinates
 fn update_grid_position(
     mut coordinates: ResMut<NextCoordinates>,
     q_window: Single<&Window>,
@@ -1200,6 +1224,22 @@ fn update_debug_info_coordinates(
         });
 }
 
+fn update_debug_info_active(
+    next_coordinates: Res<NextCoordinates>,
+    cells: Query<(&CellPitch, &Coordinates)>,
+    mut text: Query<(&DebugInfo, &mut Text)>,
+) {
+    text.iter_mut()
+        .filter(|(di, _)| **di == DebugInfo::Active)
+        .for_each(|(_, mut t)| {
+            if let Some((cp, _c)) = cells.iter().find(|(_cp, c)| **c == next_coordinates.0) {
+                *t = Text::new(format!("Note: {:?} | Octave: {}", cp.note, cp.octave));
+            } else {
+                *t = Text::new(String::from("N/A"));
+            }
+        });
+}
+
 fn update_note_interactivity(
     checked: Query<Entity, (With<Note>, With<Checkbox>, With<Checked>)>,
     mut commands: Commands,