From c8358488c2d2cf4ca430306d5d256bd0bba33381 Mon Sep 17 00:00:00 2001
From: Joe Ardent <code@ardent.nebcorp.com>
Date: Sun, 19 Feb 2023 14:21:41 -0800
Subject: [PATCH] make speed display according only to forward velocity, not
 total linear vel

---
 src/ui.rs | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/src/ui.rs b/src/ui.rs
index 507dbe1..24c88cd 100644
--- a/src/ui.rs
+++ b/src/ui.rs
@@ -1,6 +1,6 @@
 use bevy::prelude::{
     AlignSelf, App, AssetServer, Color, Commands, Component, Plugin, Query, Res, Style, Text,
-    TextBundle, TextSection, TextStyle, With,
+    TextBundle, TextSection, TextStyle, Transform, With,
 };
 #[cfg(feature = "inspector")]
 use bevy_inspector_egui::quick::WorldInspectorPlugin;
@@ -39,12 +39,13 @@ fn setup_ui(mut commands: Commands, asset_server: Res<AssetServer>) {
 }
 
 fn update_ui(
-    state_query: Query<&Velocity, With<CyberBikeBody>>,
+    state_query: Query<(&Velocity, &Transform), With<CyberBikeBody>>,
     mut text_query: Query<&mut Text, With<UpText>>,
 ) {
     let mut text = text_query.single_mut();
-    let state = state_query.single();
-    text.sections[0].value = format!("spd: {:.2}", state.linvel.length());
+    let (velocity, xform) = state_query.single();
+    let speed = velocity.linvel.dot(xform.forward());
+    text.sections[0].value = format!("spd: {:.2}", speed);
 }
 
 pub struct CyberUIPlugin;