From 46a030f15ef4305ef70bd9eb08db5c4e09d72a37 Mon Sep 17 00:00:00 2001
From: yuni <hut@hut.pm>
Date: Tue, 11 Jun 2024 01:12:41 +0200
Subject: [PATCH] speedometer shows speed relative to orbital velocity

---
 src/hud.rs | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/hud.rs b/src/hud.rs
index ea5b6b9..2379123 100644
--- a/src/hud.rs
+++ b/src/hud.rs
@@ -707,7 +707,8 @@ fn update_dashboard(
 fn update_speedometer(
     timer: ResMut<FPSUpdateTimer>,
     settings: Res<Settings>,
-    q_camera: Query<&LinearVelocity, With<actor::PlayerCamera>>,
+    jupiter_pos: Res<game::JupiterPos>,
+    q_camera: Query<(&LinearVelocity, &Position), With<actor::PlayerCamera>>,
     q_player: Query<&actor::ExperiencesGForce, With<actor::Player>>,
     q_target: Query<&LinearVelocity, With<IsTargeted>>,
     mut q_speedometer: Query<&mut Style, (With<Speedometer>, Without<Speedometer2>)>,
@@ -717,8 +718,9 @@ fn update_speedometer(
     if !settings.hud_active || !timer.0.just_finished() {
         return;
     }
-    if let Ok(cam_v) = q_camera.get_single() {
-        let speed = cam_v.length();
+    if let Ok((cam_v, pos)) = q_camera.get_single() {
+        let orbital_v = nature::orbital_velocity(pos.0 - jupiter_pos.0, nature::JUPITER_MASS);
+        let speed = (cam_v.0 - orbital_v).length();
 
         let speedometer_split = 5_000.0;
         if let Ok(mut speedometer) = q_speedometer.get_single_mut() {