From 4762edbe03d5010edad766de04484e7f65637372 Mon Sep 17 00:00:00 2001
From: STP <adam.a.french@outlook.com>
Date: Wed, 15 Nov 2023 16:57:02 -0500
Subject: [PATCH] Added windowing system and eventloop

---
 src/window.rs | 115 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 115 insertions(+)
 create mode 100644 src/window.rs

diff --git a/src/window.rs b/src/window.rs
new file mode 100644
index 0000000..54fff61
--- /dev/null
+++ b/src/window.rs
@@ -0,0 +1,115 @@
+use nalgebra::{Point3, Vector3};
+use std::sync::Arc;
+use std::time::Instant;
+
+use wgpu::util::DeviceExt;
+use winit::{
+    error::EventLoopError,
+    event::*,
+    event_loop::{ControlFlow, EventLoop},
+    window::{Window, WindowBuilder},
+};
+
+use crate::light::Light;
+use crate::primitive::Material;
+use crate::{camera::Camera, primitive::*, raytracer, scene::Scene};
+
+pub fn run() -> Result<(), EventLoopError> {
+    // Create an event loop and window using winit
+    let event_loop = EventLoop::new().expect("Could not make event loop");
+    let window = WindowBuilder::new().build(&event_loop).unwrap();
+    let window_size = &window.inner_size();
+
+    //Environment variables
+    let mut height = window_size.height;
+    let mut width = window_size.width;
+
+    event_loop.run(move |event, elwt| {
+        match event {
+            Event::WindowEvent {
+                ref event,
+                window_id,
+            } if window_id == window.id() => {
+                match event {
+                    WindowEvent::CloseRequested => elwt.exit(),
+                    WindowEvent::Resized(physical_size) => {
+                        width = physical_size.width;
+                        height = physical_size.height;
+                        // draw_pixels(&mut pixels, 400, 400);
+                    }
+                    WindowEvent::ScaleFactorChanged {
+                        inner_size_writer, ..
+                    } => {}
+                    WindowEvent::KeyboardInput { event, .. } => {
+                        println!("{}", event.logical_key.to_text().unwrap());
+                    }
+                    WindowEvent::RedrawRequested => {}
+                    _ => {}
+                }
+            }
+            _ => {}
+        }
+    })
+}
+
+// fn clear_pixels(pixels: &mut Pixels) {
+//     let frame = pixels.frame_mut();
+//     for pixel in frame.chunks_exact_mut(4) {
+//         pixel[0] = 0x00; // R
+//         pixel[1] = 0x00; // G
+//         pixel[2] = 0x00; // B
+//         pixel[3] = 0xff; // A
+//     }
+//     if pixels.render().is_err() {
+//         eprintln!("Failed to render frame");
+//     }
+// }
+//
+// fn draw_pixels(pixels: &mut Pixels, width: u32, height: u32) {
+//     //Create our scene
+//     let eye = Point3::new(0.0, 0.0, -1.0);
+//     let target = Point3::new(0.0, 0.0, 0.0);
+//     let up = Vector3::new(0.0, 1.0, 0.0);
+//     let arc_camera = Arc::new(Camera::new(eye, target, up, 90.0, (width / height) as f32));
+//     let cameras: Vec<Arc<Camera>> = vec![arc_camera.clone()];
+//
+//     let arc_material = Arc::new(Material::magenta());
+//     let arc_cone = Arc::new(Cone::unit(arc_material));
+//     let primitives: Vec<Arc<dyn Primitive>> = vec![arc_cone]
+//         .into_iter()
+//         .map(|arc| arc as Arc<dyn Primitive>)
+//         .collect();
+//
+//     let light: Arc<Light>;
+//     let light = Arc::new(Light::white());
+//     let lights = vec![light];
+//
+//     let ambient_light = Arc::new(Vector3::new(1.0, 1.0, 1.0));
+//
+//     let scene = Scene::new(primitives, lights, cameras, ambient_light);
+//
+//     let rays = arc_camera.as_ref().cast_rays(width, height);
+//
+//     let colours = raytracer::shade_rays(&scene, &rays, width, height);
+//
+//     print!("{}", colours.len());
+//
+//     let pixels = pixels.frame().chunks_exact_mut(4);
+//     for (i, colour) in colours.iter().enumerate() {
+//         let colour = colours[i];
+//         let pixel = &mut pixels[i];
+//         pixel[0] = colour.x;
+//         pixel[1] = colour.y;
+//         pixel[2] = colour.z;
+//     }
+//
+//     // Render the frame
+//     if pixels.render().is_err() {
+//         eprintln!("Failed to render frame");
+//     }
+// }
+// // Create a Pixels instance for drawing
+// let mut pixels = {
+//     let surface_texture = SurfaceTexture::new(window_size.width, window_size.height, &window);
+//     Pixels::new(width, height, surface_texture).unwrap()
+// };