From ee09f6f601bd66a98264c72fd57f6366d38a1d19 Mon Sep 17 00:00:00 2001
From: Elijah Voigt <elijah.caine.mv@gmail.com>
Date: Tue, 5 Aug 2025 11:40:00 -0700
Subject: [PATCH] tooltip tracks and hides when moving out of debug state

---
 src/debug.rs | 49 +++++++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 45 insertions(+), 4 deletions(-)

diff --git a/src/debug.rs b/src/debug.rs
index e7dd050..40c91c4 100644
--- a/src/debug.rs
+++ b/src/debug.rs
@@ -1,6 +1,6 @@
 use std::{cmp::Ordering, collections::VecDeque};
 
-use bevy::picking::{backend::HitData, hover::HoverMap};
+use bevy::{picking::{backend::HitData, hover::HoverMap}, sprite::Anchor};
 
 use super::*;
 
@@ -18,7 +18,9 @@ impl Plugin for DebuggingPlugin {
             .add_systems(
                 Update,
                 (
-                    (toggle_state_visibility::<DebuggingState>,)
+                    (
+                        toggle_state_visibility::<DebuggingState>,
+                     )
                         .run_if(state_changed::<DebuggingState>),
                     toggle_debug_state.run_if(input_just_pressed(KeyCode::F12)),
                     (toggle_light_gizmo, toggle_aabb_gizmo).run_if(state_changed::<DebuggingState>),
@@ -26,6 +28,8 @@ impl Plugin for DebuggingPlugin {
                         (hover_mesh, hover_ui)
                             .run_if(on_event::<Pointer<Over>>.or(on_event::<Pointer<Out>>)),
                         tooltip_follow.run_if(any_component_changed::<Window>),
+                        tooltip_update_transform.run_if(any_component_changed::<Transform>),
+                        tooltip_draw.run_if(any_component_changed::<ToolTip>),
                         sync_resource_to_ui::<ToolTip>.run_if(resource_changed::<ToolTip>),
                         lock_tooltip.run_if(input_just_pressed(KeyCode::KeyL)),
                         track_fps,
@@ -38,6 +42,7 @@ impl Plugin for DebuggingPlugin {
                 ),
             )
             .add_observer(add_tooltip_text)
+            .add_observer(populate_tooltip_info)
             .add_observer(remove_tooltip_text);
 
         // WebGL2-incompatible systems
@@ -275,13 +280,34 @@ fn add_tooltip_text(
     info!("Adding text2d to {:?}", trigger.target());
     commands.entity(trigger.target()).with_children(|parent| {
         parent.spawn((
-            TextColor(GREEN.into()),
+            TextColor(BLACK.into()),
             Text2d("Placeholder".into()),
-            Transform::from_xyz(1.5, 0.0, 1.0).with_scale(Vec3::splat(0.01)),
+            Transform::from_xyz(0.5, 0.0, 1.0).with_scale(Vec3::splat(0.01)),
+            Anchor::CenterLeft,
+            DebuggingState::On,
         ));
     });
 }
 
+fn populate_tooltip_info(
+    trigger: Trigger<OnAdd, ToolTip>,
+    mut tooltips: Query<(&mut ToolTip, Entity, &Transform, &Name)>,
+) {
+    if let Ok((mut tt, e, t, n)) = tooltips.get_mut(trigger.target()) {
+        tt.insert("ID", format!("{e}"));
+        tt.insert("Name", n.into());
+        tt.insert("Pos", format!("{:.2?} {:.2?} {:.2?}", t.translation.x, t.translation.y, t.translation.z));
+    }
+}
+
+fn tooltip_update_transform(
+    mut events: Query<(&mut ToolTip, &Transform), Changed<Transform>>,
+) {
+    events.iter_mut().for_each(|(mut tt, t)| {
+        tt.insert("Pos", format!("{:.2?} {:.2?} {:.2?}", t.translation.x, t.translation.y, t.translation.z));
+    });
+}
+
 /// when a tooltip is removed to an entity, remove the text components
 fn remove_tooltip_text(
     trigger: Trigger<OnRemove, ToolTip>,
@@ -298,6 +324,21 @@ fn remove_tooltip_text(
     }
 }
 
+/// When tooltip is updated, re-draw it
+fn tooltip_draw(
+    events: Query<(&ToolTip, &Children), Changed<ToolTip>>,
+    mut text_2d: Query<&mut Text2d>,
+) {
+    events.iter().for_each(|(tt, children)| {
+        // Find the tooltip text child
+        children.iter().for_each(|child| {
+            if let Ok(mut text) = text_2d.get_mut(child) {
+                text.0 = format!("{}", tt);
+            }
+        });
+    })
+}
+
 /// When you hover over a mesh, update the tooltip with some info
 fn hover_mesh(
     mut over_events: EventReader<Pointer<Over>>,