From a8357a88769922094d95eff74c770200fc5aa04a Mon Sep 17 00:00:00 2001
From: Matthew Deville <matthew@stockly.ai>
Date: Sun, 31 Aug 2025 17:25:38 +0200
Subject: [PATCH] wip

---
 src/main.rs     |  2 +-
 src/material.rs |  1 -
 src/systems.rs  | 26 +++++++++++---------------
 3 files changed, 12 insertions(+), 17 deletions(-)

diff --git a/src/main.rs b/src/main.rs
index 20f2cd4..f0c2299 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -17,7 +17,7 @@ fn main() {
             Update,
             (
                 material::update_material_time,
-                systems::resize_fullscreen_quad,
+                systems::screen_resized,
                 systems::exit_app.run_if(input_just_pressed(KeyCode::Escape)),
                 systems::toggle_fullscreen.run_if(input_just_pressed(KeyCode::F11)),
             ),
diff --git a/src/material.rs b/src/material.rs
index b371441..9299eaf 100644
--- a/src/material.rs
+++ b/src/material.rs
@@ -7,7 +7,6 @@ use bevy::{
 
 const DEFAULT_SHADER_PATH: &str = "shaders/default.wgsl";
 
-// This is the struct that will be passed to your shader
 #[derive(Asset, TypePath, AsBindGroup, Clone)]
 pub struct CustomMaterial {
     #[uniform(0)]
diff --git a/src/systems.rs b/src/systems.rs
index 9e13c39..a967b79 100644
--- a/src/systems.rs
+++ b/src/systems.rs
@@ -1,23 +1,19 @@
 use bevy::{
     prelude::*,
-    window::{PrimaryWindow, WindowMode},
+    window::{PrimaryWindow, WindowMode, WindowResized},
 };
 
 use crate::material::CustomMaterial;
 
-/// Marker component for the fullscreen quad so we can update it on window resize
 #[derive(Component)]
 pub struct FullscreenQuad;
 
-/// set up a simple 2D-screen-like surface
 pub fn setup(
     mut meshes: ResMut<Assets<Mesh>>,
     mut materials: ResMut<Assets<CustomMaterial>>,
-    mut primary_window: Single<&mut Window, With<PrimaryWindow>>,
+    primary_window: Single<&Window, With<PrimaryWindow>>,
     mut commands: Commands,
 ) {
-    primary_window.decorations = false;
-
     commands.spawn(Camera2d);
 
     // quad that fills the whole window
@@ -39,16 +35,16 @@ pub fn setup(
     ));
 }
 
-/// Update fullscreen quad transforms when the primary window is resized.
-pub fn resize_fullscreen_quad(
-    primary_window: Single<&Window, With<PrimaryWindow>>,
-    mut transform: Single<&mut Transform, With<FullscreenQuad>>,
+pub fn screen_resized(
+    mut events: EventReader<WindowResized>,
+    shader_data: Single<(&mut Transform, &MeshMaterial2d<CustomMaterial>), With<FullscreenQuad>>,
+    mut materials: ResMut<Assets<CustomMaterial>>,
 ) {
-    let size = Vec2::new(
-        primary_window.resolution.width(),
-        primary_window.resolution.height(),
-    );
-    transform.scale = Vec3::new(size.x, size.y, 1.0);
+    let (mut transform, material) = shader_data.into_inner();
+    if let Some(event) = events.read().last() {
+        transform.scale = Vec3::new(event.width, event.height, 1.0);
+        materials.get_mut(&material.0).unwrap().resolution = Vec2::new(event.width, event.height);
+    }
 }
 
 pub fn exit_app(mut exit: EventWriter<AppExit>) {