From b4d07bb856f1a517db7437d06194b9dbc4e6e9cb Mon Sep 17 00:00:00 2001
From: BobDaGithubAccount <bobdaduckaddress@duck.com>
Date: Sun, 27 Oct 2024 11:14:54 +0000
Subject: [PATCH] Overhauled rendering internals and introduced a new workflow

---
 .github/workflows/quick-build.sh |  4 ++
 lib/Cargo.toml                   |  1 +
 lib/src/main.rs                  | 56 +++++++++++++++-------
 package.json                     |  3 +-
 src/index.html                   | 79 ++++++++++++++++++++++++++------
 5 files changed, 111 insertions(+), 32 deletions(-)
 create mode 100644 .github/workflows/quick-build.sh

diff --git a/.github/workflows/quick-build.sh b/.github/workflows/quick-build.sh
new file mode 100644
index 0000000..7c1dbb4
--- /dev/null
+++ b/.github/workflows/quick-build.sh
@@ -0,0 +1,4 @@
+rm -r dist
+mkdir dist
+cp src/index.html dist/index.html
+cp -r lib/pkg/* dist/
\ No newline at end of file
diff --git a/lib/Cargo.toml b/lib/Cargo.toml
index 28cfaa4..d964375 100644
--- a/lib/Cargo.toml
+++ b/lib/Cargo.toml
@@ -10,6 +10,7 @@ web-sys = { version = "0.3", features = ["Window"] }
 three-d = "0.17.0"
 log = "0.4"
 winit = "0.28"
+lazy_static = "1.4.0"
 
 [lib]
 crate-type = ["cdylib", "rlib"]
diff --git a/lib/src/main.rs b/lib/src/main.rs
index 7cdc6d6..52c8071 100644
--- a/lib/src/main.rs
+++ b/lib/src/main.rs
@@ -1,13 +1,32 @@
-use three_d::{renderer::*, FrameInputGenerator, SurfaceSettings, WindowedContext};
+use three_d::{context, renderer::*, FrameInputGenerator, SurfaceSettings, WindowedContext};
+use std::sync::Mutex;
+
+#[cfg(target_arch = "wasm32")]
+use wasm_bindgen::prelude::*;
+
+lazy_static::lazy_static! {
+    static ref CAMERA_INSTANCE: Mutex<Option<Camera>> = Mutex::new(None);
+}
+
+#[cfg(target_arch = "wasm32")]
+#[wasm_bindgen]
+pub fn resize_callback(width: u32, height: u32) {
+    log::info!("Resized to {:?}", (width, height));
+    if let Some(camera) = CAMERA_INSTANCE.lock().unwrap().as_mut() {
+        camera.set_viewport(Viewport::new_at_origo(width, height));
+    }
+}
 
 pub fn main() {
     let event_loop = winit::event_loop::EventLoop::new();
 
     #[cfg(not(target_arch = "wasm32"))]
     let window_builder = winit::window::WindowBuilder::new()
-        .with_title("winit window")
-        .with_min_inner_size(winit::dpi::LogicalSize::new(1280, 720))
+        .with_title("Full-Screen Window")
+        .with_inner_size(winit::dpi::LogicalSize::new(1920, 1080))
+        .with_decorations(false)
         .with_maximized(true);
+
     #[cfg(target_arch = "wasm32")]
     let window_builder = {
         use wasm_bindgen::JsCast;
@@ -18,31 +37,32 @@ pub fn main() {
                     .unwrap()
                     .document()
                     .unwrap()
-                    .get_elements_by_tag_name("canvas")
-                    .item(0)
+                    .get_element_by_id("canvas")
                     .unwrap()
                     .dyn_into::<web_sys::HtmlCanvasElement>()
                     .unwrap(),
             ))
-            .with_inner_size(winit::dpi::LogicalSize::new(1280, 720))
+            .with_inner_size(winit::dpi::LogicalSize::new(1920, 1080))
             .with_prevent_default(true)
     };
+
     let window = window_builder.build(&event_loop).unwrap();
     let context = WindowedContext::from_winit_window(&window, SurfaceSettings::default()).unwrap();
 
-    // Create camera
     let mut camera = Camera::new_perspective(
-        Viewport::new_at_origo(1, 1),
-        vec3(0.0, 2.0, 4.0),
-        vec3(0.0, 0.0, 0.0),
-        vec3(0.0, 1.0, 0.0),
-        degrees(45.0),
-        0.1,
-        10.0,
+        Viewport::new_at_origo(1, 1), 
+        vec3(0.0, 2.0, 4.0),            // Camera position
+        vec3(0.0, 0.0, 0.0),              // Target position (where the camera is looking)
+        vec3(0.0, 1.0, 0.0),                  // Up direction
+        degrees(45.0),                  // Field of view
+        0.1,                                     // Near clipping plane
+        100.0,                                    // Far clipping plane
     );
+
+    *CAMERA_INSTANCE.lock().unwrap() = Some(camera.clone());
+
     let mut control = OrbitControl::new(*camera.target(), 1.0, 100.0);
 
-    // Create model
     let mut model = Gm::new(
         Mesh::new(&context, &CpuMesh::cube()),
         ColorMaterial {
@@ -52,7 +72,6 @@ pub fn main() {
     );
     model.set_animation(|time| Mat4::from_angle_y(radians(time * 0.0005)));
 
-    // Event loop
     let mut frame_input_generator = FrameInputGenerator::from_winit_window(&window);
     event_loop.run(move |event, _, control_flow| match event {
         winit::event::Event::MainEventsCleared => {
@@ -77,10 +96,13 @@ pub fn main() {
             frame_input_generator.handle_winit_window_event(event);
             match event {
                 winit::event::WindowEvent::Resized(physical_size) => {
+                    log::info!("Resized to {:?}", physical_size);
                     context.resize(*physical_size);
+                    camera.set_viewport(Viewport::new_at_origo(physical_size.width, physical_size.height));
                 }
                 winit::event::WindowEvent::ScaleFactorChanged { new_inner_size, .. } => {
                     context.resize(**new_inner_size);
+                    camera.set_viewport(Viewport::new_at_origo(new_inner_size.width, new_inner_size.height));
                 }
                 winit::event::WindowEvent::CloseRequested => {
                     control_flow.set_exit();
@@ -90,4 +112,4 @@ pub fn main() {
         }
         _ => {}
     });
-}
\ No newline at end of file
+}
diff --git a/package.json b/package.json
index a12f6b9..dcb6b17 100644
--- a/package.json
+++ b/package.json
@@ -6,7 +6,8 @@
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1",
     "run": "bash .github/workflows/run.sh",
-    "build": "bash .github/workflows/build.sh"
+    "build": "bash .github/workflows/build.sh",
+    "quickrun": "bash .github/workflows/quick-build.sh && node index.js"
   },
   "repository": {
     "type": "git",
diff --git a/src/index.html b/src/index.html
index de58d05..1c8e368 100644
--- a/src/index.html
+++ b/src/index.html
@@ -1,17 +1,68 @@
 <!DOCTYPE html>
 <html lang="en">
-<head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <title>Atomica</title>
-</head>
-<body>
-    <canvas id="canvas"></canvas>
-    <script type="module">
-        import init from './src.js';
-        init().then(() => {
-            console.log("Wasm module initialized");
-        });
-    </script>
-</body>
+    <head>
+        <meta charset="UTF-8">
+        <meta name="viewport" content="width=device-width, initial-scale=1.0">
+        <title>Atomica</title>
+        <style>
+            body {
+                margin: 0;
+                overflow: hidden;
+            }
+            #canvas {
+                display: block;
+                width: 100vw;
+                height: 100vh;
+            }
+        </style>
+    </head>
+    <body>
+        <canvas id="canvas"></canvas>
+        <script type="module">
+            import init, * as wasm_bindgen from './src.js';
+
+            function jsInit() {
+                console.log("Wasm module initialized");
+
+                if (typeof window.resize_callback === 'undefined' && typeof wasm_bindgen.resize_callback !== 'undefined') {
+                    console.log("Setting resize callback");
+                    window.resize_callback = wasm_bindgen.resize_callback;
+                }
+
+                const canvas = document.getElementById('canvas');
+
+                function resizeCanvas() {
+                    const canvas = document.getElementById('canvas');
+                    const width = window.innerWidth;
+                    const height = window.innerHeight;
+                    canvas.width = width;
+                    canvas.height = height;
+
+                    if (typeof window.resize_callback === 'function') {
+                        window.resize_callback(width, height);
+                    }
+                }
+
+                window.addEventListener('resize', resizeCanvas);
+                window.addEventListener('load', resizeCanvas);
+            }
+            init().then(() => {
+                jsInit();
+            }).catch(err => {
+                if (err.message.includes("Using exceptions for control flow")) {
+                    console.warn("Ignoring expected Wasm initialization exception and proceeding.");
+                    try {
+                        jsInit();
+                    } catch (err) {
+                        console.error("Error in continuing initialisation:", err);
+                        throw err;
+                    }
+                } else {
+                    console.error("Error initializing wasm module:", err);
+                    throw err;
+                }
+            });
+            console.log("Wasm module initialization call made");
+        </script>
+    </body>
 </html>
\ No newline at end of file