diff --git a/src/hud.rs b/src/hud.rs
index 4914cd9..df2c592 100644
--- a/src/hud.rs
+++ b/src/hud.rs
@@ -1,4 +1,4 @@
-use crate::settings;
+use crate::{settings, player};
 use bevy::prelude::*;
 use bevy::diagnostic::{DiagnosticsStore, FrameTimeDiagnosticsPlugin};
 
@@ -14,7 +14,7 @@ impl Plugin for OutFlyHudPlugin {
 const FONT: &str = "tmp/fonts/NotoSansSC-Thin.ttf";
 
 #[derive(Component)]
-struct FpsText;
+struct GaugesText;
 
 #[derive(Resource)]
 struct FPSUpdateTimer(Timer);
@@ -48,19 +48,56 @@ fn setup(
                 ..default()
             }
         ),
+        TextSection::new(
+            "\n  OXYGEN ",
+            TextStyle {
+                font: asset_server.load(FONT),
+                font_size: settings.font_size_hud,
+                color: Color::GRAY,
+                ..default()
+            },
+        ),
+        TextSection::new(
+            "",
+            TextStyle {
+                font: asset_server.load(FONT),
+                font_size: settings.font_size_hud,
+                color: Color::GRAY,
+                ..default()
+            }
+        ),
+        TextSection::new(
+            "\n  Adren水平 ",
+            TextStyle {
+                font: asset_server.load(FONT),
+                font_size: settings.font_size_hud,
+                color: Color::GRAY,
+                ..default()
+            },
+        ),
+        TextSection::new(
+            "",
+            TextStyle {
+                font: asset_server.load(FONT),
+                font_size: settings.font_size_hud,
+                color: Color::GRAY,
+                ..default()
+            }
+        ),
     ]);
     bundle_fps.visibility = visibility;
     commands.spawn((
         bundle_fps,
-        FpsText,
+        GaugesText,
     ));
 }
 
 fn update(
     diagnostics: Res<DiagnosticsStore>,
     time:Res<Time>,
+    playervars:Res<player::PlayerVars>,
     mut timer: ResMut<FPSUpdateTimer>,
-    mut query: Query<&mut Text, With<FpsText>>,
+    mut query: Query<&mut Text, With<GaugesText>>,
 ) {
     if timer.0.tick(time.delta()).just_finished() {
         for mut text in &mut query {
@@ -70,6 +107,10 @@ fn update(
                     text.sections[1].value = format!("{value:.0}");
                 }
             }
+            let oxygen = playervars.oxygen * 100.0;
+            text.sections[3].value = format!("{oxygen:.1}%");
+            let adrenaline = playervars.adrenaline * 430.0;
+            text.sections[5].value = format!("{adrenaline:.1}ppm");
         }
     }
 }
@@ -77,7 +118,7 @@ fn update(
 fn handle_input(
     keyboard_input: Res<ButtonInput<KeyCode>>,
     settings: Res<settings::Settings>,
-    mut query: Query<&mut Visibility, With<FpsText>>,
+    mut query: Query<&mut Visibility, With<GaugesText>>,
 ) {
     if keyboard_input.just_pressed(settings.key_togglehud) {
         for mut vis in &mut query {
diff --git a/src/main.rs b/src/main.rs
index 1c33c03..8fd529c 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -23,6 +23,9 @@ fn main() {
                 audio::toggle_bgm,
                 world::asset_loaded.after(world::load_cubemap_asset),
         ))
+        .add_systems(FixedUpdate, (
+                player::drain_resources,
+        ))
         .add_plugins(DefaultPlugins.set(ImagePlugin::default_nearest()))
         .add_plugins((
             camera::CameraControllerPlugin,
@@ -33,6 +36,7 @@ fn main() {
             LogDiagnosticsPlugin::default(),
         ))
         .insert_resource(settings::Settings::default())
+        .insert_resource(player::PlayerVars::default())
         .run();
 }
 
diff --git a/src/player.rs b/src/player.rs
index b2dc6a5..e0ab122 100644
--- a/src/player.rs
+++ b/src/player.rs
@@ -18,6 +18,23 @@ impl Default for Player {
     }
 }
 
+#[derive(Resource)]
+pub struct PlayerVars {
+    pub oxygen: f32,
+    pub adrenaline: f32,
+    pub adrenaline_jolt: f32,
+}
+
+impl Default for PlayerVars {
+    fn default() -> Self {
+        Self {
+            oxygen: 1.0,
+            adrenaline: 0.1,
+            adrenaline_jolt: 0.1,
+        }
+    }
+}
+
 pub fn setup(mut commands: Commands) {
     commands.spawn(Player::default());
 }
@@ -39,3 +56,10 @@ pub fn handle_input(
         }
     }
 }
+
+pub fn drain_resources(
+    mut playervars:ResMut<PlayerVars>,
+) {
+    playervars.adrenaline = (playervars.adrenaline - 0.0001).clamp(0.0, 1.0);
+    playervars.oxygen = (playervars.oxygen - 0.000001).clamp(0.0, 1.0);
+}