[WASM] Fix build error

src/lib.rs

@@ -9,7 +9,7 @@ use winit::{
 #[cfg(target_arch = "wasm32")]
 use wasm_bindgen::prelude::*;
 
-use crate::render::{DefaultState, Renderer, State};
+use crate::render::{DefaultState, Renderer};
 
 mod camera;
 mod model;
@@ -167,7 +167,7 @@ pub async fn run() {
     }
 
     let mut renderer = Arc::from(Renderer::new(&window).await);
-    let default_state = Box::from(DefaultState::new(renderer.deref()));
+    let default_state = Box::from(DefaultState::new(renderer.deref()).await);
     Arc::get_mut(&mut renderer)
         .unwrap()
         .set_state(Some(default_state));

src/render/renderer/default_state.rs

@@ -34,10 +34,8 @@ pub struct DefaultState {
     pipelines: render::Pipelines,
 }
 
-impl super::State for DefaultState {
+impl DefaultState {
-    fn new(renderer: &Renderer) -> Self
+    pub async fn new(renderer: &Renderer) -> Self
-    where
-        Self: Sized,
     {
         let global_bind_layout = render::GlobalBindLayout::new(&renderer.device);
         let pipelines =
@@ -119,12 +117,12 @@ impl super::State for DefaultState {
                 label: Some("camera_bind_group"),
             });
 
-        let obj_model = async_std::task::block_on(resources::load_model(
+        let obj_model = resources::load_model(
             "cube.obj",
             &renderer.device,
             &renderer.queue,
             global_bind_layout.get_texture_bind_layout(),
-        )).unwrap();
+        ).await.unwrap();
 
         let light_uniform = LightUniform {
             position: [2.0, 2.0, 2.0],
@@ -208,7 +206,9 @@ impl super::State for DefaultState {
             pipelines,
         }
     }
+}
 
+impl super::State for DefaultState {
     fn resize(
         &mut self,
         device: &wgpu::Device,

src/render/renderer/mod.rs

@@ -9,9 +9,6 @@ use wgpu::{CommandEncoder, Queue, TextureView};
 use winit::event::Event;
 
 pub trait State {
-    fn new(renderer: &Renderer) -> Self
-    where
-        Self: Sized;
     fn resize(
         &mut self,
         device: &wgpu::Device,