208 lines
7.3 KiB
Rust
208 lines
7.3 KiB
Rust
use cyborg::camera::Camera;
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use cyborg::pass::{mesh, RenderPassBox};
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use cyborg::shader;
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use cyborg::storage::mesh::*;
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use cyborg::viewport::*;
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use cyborg::Renderer;
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use legion::*;
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use std::sync::Arc;
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use winit::{
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event::*,
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event_loop::{ControlFlow, EventLoop},
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window::WindowBuilder,
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};
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fn main() {
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let event_loop = EventLoop::new();
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let window = WindowBuilder::new().build(&event_loop).unwrap();
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let viewport = pollster::block_on(WinitViewport::from_window(&window));
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let mut world = World::new(Default::default());
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let mut resources = Resources::default();
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let renderer = Renderer::new(viewport.device.clone(), viewport.queue.clone());
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resources.insert(renderer);
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resources.insert(viewport.get_info().to_owned());
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let mut flycam = cyborg::camera::Flycam::new(0.002, 10.0, 0.25);
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let mut is_grabbed = false;
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let shader_store = Arc::new(shader::ShaderStore::new(viewport.device.clone()));
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let shaders_dir = std::env::current_dir().unwrap();
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let shaders_dir = shaders_dir.join("shaders/");
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let shader_watcher = shader::ShaderWatcher::new(shader_store.to_owned(), shaders_dir).unwrap();
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let mesh_forward = shader_watcher.add_file("mesh_forward.wgsl").unwrap();
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let mesh_skinning = shader_watcher.add_file("mesh_skinning.wgsl").unwrap();
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let mesh_shaders = mesh::ShaderInfo {
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store: shader_store.clone(),
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forward: mesh_forward,
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skinning: mesh_skinning,
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};
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resources.insert(mesh_shaders);
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let mut render_schedule = Schedule::builder();
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cyborg::legion::build_renderer(&mut resources, &mut render_schedule);
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let mut render_schedule = render_schedule.build();
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let example_vertices = vec![
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mesh::Vertex {
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position: [-0.5, 0.0, 0.5],
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tan_frame: 0,
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},
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mesh::Vertex {
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position: [0.5, 0.0, 0.5],
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tan_frame: 0,
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},
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mesh::Vertex {
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position: [0.0, -0.5, -0.5],
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tan_frame: 0,
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},
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mesh::Vertex {
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position: [0.0, 0.5, -0.5],
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tan_frame: 0,
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},
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];
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let mesh_pass = resources.get::<RenderPassBox<mesh::MeshPass>>().unwrap();
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let example_vertices = AttrBuffer {
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id: mesh_pass.get_vertex_attr_id(),
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count: example_vertices.len(),
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data: bytemuck::cast_slice(&example_vertices).to_vec(),
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};
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let example_indices: Vec<mesh::Index> = vec![0, 1, 2, 1, 2, 3, 2, 3, 0, 0, 2, 3];
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let example_indices = AttrBuffer {
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id: mesh_pass.get_index_attr_id(),
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count: example_indices.len(),
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data: bytemuck::cast_slice(&example_indices).to_vec(),
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};
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let mut example_mesh = MeshBuffer::default();
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example_mesh.attributes.push(example_vertices);
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example_mesh.attributes.push(example_indices);
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let example_mesh = mesh_pass.get_mesh_pool().load(example_mesh).unwrap();
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drop(mesh_pass);
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let example_debug_draw = cyborg::scene::DebugDrawList {
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vertices: vec![
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cyborg::scene::DebugVertex {
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position: [0.0, 0.0, -0.5],
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color: [1.0, 0.0, 0.0],
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},
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cyborg::scene::DebugVertex {
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position: [0.0, 0.0, 0.5],
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color: [0.0, 0.0, 1.0],
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},
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],
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indices: vec![0, 1],
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};
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let r = 4;
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for x in -r..r {
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for y in -r..r {
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for z in -r..r {
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let translation = glam::Vec3::new(x as f32, y as f32, z as f32);
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let transform = glam::Mat4::from_translation(translation);
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world.push((
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cyborg::scene::TransformedMesh {
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transform,
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mesh: example_mesh.clone(),
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},
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cyborg::scene::Transform { transform },
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example_debug_draw.clone(),
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));
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}
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}
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}
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let viewport_entity = world.push((viewport, flycam.get_camera()));
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event_loop.run(move |event, _, control_flow| match event {
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Event::RedrawRequested(_) => {
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let mut viewport_entry = world.entry_mut(viewport_entity).unwrap();
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let viewport = viewport_entry.get_component_mut::<WinitViewport>().unwrap();
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match viewport.acquire() {
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Err(wgpu::SurfaceError::Lost) => viewport.resize(viewport.size),
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Err(wgpu::SurfaceError::OutOfMemory) => *control_flow = ControlFlow::Exit,
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Err(e) => eprintln!("error: {:?}", e),
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Ok(_) => {
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render_schedule.execute(&mut world, &mut resources);
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}
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}
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}
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Event::MainEventsCleared => {
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shader_watcher.watch();
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flycam.update();
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window.request_redraw();
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let mut viewport_entry = world.entry_mut(viewport_entity).unwrap();
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let camera = viewport_entry.get_component_mut::<Camera>().unwrap();
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let _ = std::mem::replace(camera, flycam.get_camera());
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}
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Event::DeviceEvent { ref event, .. } => match event {
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DeviceEvent::MouseMotion { delta } => {
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if is_grabbed {
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flycam.process_mouse(delta.0, delta.1);
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}
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}
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_ => {}
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},
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Event::WindowEvent {
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ref event,
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window_id,
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} if window_id == window.id() => match event {
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WindowEvent::KeyboardInput {
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input:
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KeyboardInput {
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virtual_keycode: Some(key),
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state,
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..
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},
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..
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} => {
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if *state == ElementState::Pressed && *key == VirtualKeyCode::Escape {
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if is_grabbed {
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window.set_cursor_grab(false).unwrap();
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window.set_cursor_visible(true);
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is_grabbed = false;
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}
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} else {
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flycam.process_keyboard(*key, *state);
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}
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}
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WindowEvent::MouseInput {
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button: MouseButton::Left,
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state: ElementState::Pressed,
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..
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} => {
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if !is_grabbed {
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window.set_cursor_grab(true).unwrap();
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window.set_cursor_visible(false);
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is_grabbed = true;
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}
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}
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WindowEvent::CloseRequested => *control_flow = ControlFlow::Exit,
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WindowEvent::Resized(physical_size) => {
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let mut viewport_entry = world.entry_mut(viewport_entity).unwrap();
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let viewport = viewport_entry.get_component_mut::<WinitViewport>().unwrap();
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viewport.resize(*physical_size);
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flycam.resize(physical_size.width, physical_size.height);
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}
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WindowEvent::ScaleFactorChanged { new_inner_size, .. } => {
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let mut viewport_entry = world.entry_mut(viewport_entity).unwrap();
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let viewport = viewport_entry.get_component_mut::<WinitViewport>().unwrap();
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viewport.resize(**new_inner_size);
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flycam.resize(new_inner_size.width, new_inner_size.height);
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}
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_ => {}
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},
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_ => {}
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});
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}
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