From a2e0d5195f4ee1cf9b5f0f042502b6add8914a09 Mon Sep 17 00:00:00 2001
From: ghostly_zsh <pokeball.181818@gmail.com>
Date: Wed, 2 Jul 2025 14:12:15 -0500
Subject: [PATCH] starfield exists

---
 crates/unified/src/client/mod.rs       |  9 +++-
 crates/unified/src/client/starfield.rs | 73 ++++++++++++++++++++++++++
 crates/unified/src/ecs.rs              |  4 ++
 3 files changed, 85 insertions(+), 1 deletion(-)
 create mode 100644 crates/unified/src/client/starfield.rs

diff --git a/crates/unified/src/client/mod.rs b/crates/unified/src/client/mod.rs
index 37b15ff89b31324e52cf703c2e7fd9a40774ba82..357fa1149d3add5b7198a5d8292617579cfca07d 100644
--- a/crates/unified/src/client/mod.rs
+++ b/crates/unified/src/client/mod.rs
@@ -1,6 +1,7 @@
 mod incoming_planets;
 mod incoming_parts;
 mod key_input;
+mod starfield;
 
 use std::net::{SocketAddr, UdpSocket};
 use std::time::SystemTime;
@@ -15,6 +16,7 @@ use bevy_replicon_renet2::RenetChannelsExt;
 use crate::client::incoming_parts::incoming_parts_plugin;
 use crate::client::incoming_planets::incoming_planets_plugin;
 use crate::client::key_input::key_input_plugin;
+use crate::client::starfield::starfield_plugin;
 use crate::ecs::{Ball, CursorWorldCoordinates, Ground, MainCamera, Player, SendBallHere};
 
 pub struct ClientPlugin {
@@ -53,7 +55,8 @@ impl Plugin for ClientPlugin {
             .add_systems(Update, find_me)
             .add_plugins(incoming_planets_plugin)
             .add_plugins(incoming_parts_plugin)
-            .add_plugins(key_input_plugin);
+            .add_plugins(key_input_plugin)
+            .add_plugins(starfield_plugin);
     }
 }
 
@@ -74,6 +77,10 @@ fn find_me(mut commands: Commands, q_clients: Query<(Entity, &Player), Added<Pla
 fn setup_graphics(mut commands: Commands) {
     commands.spawn(Camera2d::default())
         .insert(MainCamera);
+    commands.spawn(Sprite {
+
+        ..default()
+    });
 }
 
 fn follow_camera(mut camera: Query<&mut Transform, (With<MainCamera>, Without<Me>)>, mut player: Query<&Transform, With<Me>>) {
diff --git a/crates/unified/src/client/starfield.rs b/crates/unified/src/client/starfield.rs
new file mode 100644
index 0000000000000000000000000000000000000000..b58c422a43bfd6efd142502697e9fe1d0111d080
--- /dev/null
+++ b/crates/unified/src/client/starfield.rs
@@ -0,0 +1,73 @@
+use bevy::{app::{App, Startup, Update}, asset::{AssetEvent, AssetServer, Assets}, ecs::{event::EventReader, query::{With, Without}, system::{Commands, Query, Res, ResMut}}, image::Image, math::Vec2, sprite::{Sprite, SpriteImageMode}, transform::components::Transform, window::{Window, WindowResized}};
+
+use crate::{client::Me, ecs::StarfieldFront};
+
+const STARFIELD_SIZE: f32 = 512.0;
+
+pub fn starfield_plugin(app: &mut App) {
+    app
+        .add_systems(Startup, setup_starfield)
+        .add_systems(Update, fix_starfield)
+        .add_systems(Update, resize_starfield)
+        .add_systems(Update, update_starfield);
+}
+
+pub fn setup_starfield(
+    mut commands: Commands,
+    asset_server: Res<AssetServer>,
+    window: Query<&Window>
+) {
+    let starfield_handle = asset_server.load("textures/starfield.png");
+    let window = window.iter().next().unwrap();
+    commands.spawn(Sprite {
+        image: starfield_handle,
+        custom_size: Some(window.size() + Vec2::splat(STARFIELD_SIZE)),
+        image_mode: SpriteImageMode::Tiled {
+            tile_x: true,
+            tile_y: true,
+            stretch_value: 1.0,
+        },
+        ..Default::default()
+    })
+        .insert(Transform::from_xyz(0.0, 0.0, 0.0))
+        .insert(StarfieldFront);
+}
+
+pub fn fix_starfield(
+    mut starfield_front: Query<&mut Sprite, With<StarfieldFront>>,
+    assets: Res<Assets<Image>>,
+    mut asset_events: EventReader<AssetEvent<Image>>,
+) {
+    for event in asset_events.read() {
+        if let AssetEvent::Added { id } = event {
+            let mut starfield_front = starfield_front.single_mut().unwrap();
+            if *id == starfield_front.image.id() {
+                let starfield_image = assets.get(*id).unwrap();
+                starfield_front.image_mode = SpriteImageMode::Tiled {
+                    tile_x: true,
+                    tile_y: true,
+                    stretch_value: STARFIELD_SIZE / (starfield_image.size().x as f32),
+                };
+            }
+        }
+    }
+}
+
+pub fn resize_starfield(
+    mut starfield_front: Query<&mut Sprite, With<StarfieldFront>>,
+    mut resize_event: EventReader<WindowResized>,
+) {
+    for event in resize_event.read() {
+        starfield_front.single_mut().unwrap().custom_size =
+            Some(Vec2::new(event.width, event.height) + Vec2::splat(STARFIELD_SIZE));
+    }
+}
+
+pub fn update_starfield(
+    mut starfield: Query<&mut Transform, (With<StarfieldFront>, Without<Me>)>,
+    player: Query<&Transform, (With<Me>, Without<StarfieldFront>)>,
+) {
+    let Some(player) = player.iter().next() else { return };
+    let mut starfield_pos = starfield.single_mut().unwrap();
+    starfield_pos.translation = (player.translation / STARFIELD_SIZE).round() * STARFIELD_SIZE;
+}
diff --git a/crates/unified/src/ecs.rs b/crates/unified/src/ecs.rs
index 07c1b1c18c8895e979941e5a874219314bd4a957..51a115afdc8e9afdbcc92011a681be5792ecd521 100644
--- a/crates/unified/src/ecs.rs
+++ b/crates/unified/src/ecs.rs
@@ -13,6 +13,10 @@ pub struct Ball;
 pub struct Ground;
 #[derive(Component)]
 pub struct MainCamera;
+#[derive(Component)]
+pub struct StarfieldFront;
+#[derive(Component)]
+pub struct StarfieldBack;
 #[derive(Resource, Default)]
 pub struct CursorWorldCoordinates(pub Option<Vec2>);