Fix WASM build

Cargo.lock

@@ -1301,121 +1301,6 @@ dependencies = [
  "windows",
 ]
 
-[[package]]
-name = "cranelift"
-version = "0.86.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bd96bba738454eb373087df6d6891b18009361123fef90930def4978e3837448"
-dependencies = [
- "cranelift-codegen",
- "cranelift-frontend",
-]
-
-[[package]]
-name = "cranelift-bforest"
-version = "0.86.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "529ffacce2249ac60edba2941672dfedf3d96558b415d0d8083cd007456e0f55"
-dependencies = [
- "cranelift-entity",
-]
-
-[[package]]
-name = "cranelift-codegen"
-version = "0.86.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "427d105f617efc8cb55f8d036a7fded2e227892d8780b4985e5551f8d27c4a92"
-dependencies = [
- "cranelift-bforest",
- "cranelift-codegen-meta",
- "cranelift-codegen-shared",
- "cranelift-entity",
- "cranelift-isle",
- "gimli",
- "log",
- "regalloc2",
- "smallvec",
- "target-lexicon",
-]
-
-[[package]]
-name = "cranelift-codegen-meta"
-version = "0.86.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "551674bed85b838d45358e3eab4f0ffaa6790c70dc08184204b9a54b41cdb7d1"
-dependencies = [
- "cranelift-codegen-shared",
-]
-
-[[package]]
-name = "cranelift-codegen-shared"
-version = "0.86.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2b3a63ae57498c3eb495360944a33571754241e15e47e3bcae6082f40fec5866"
-
-[[package]]
-name = "cranelift-entity"
-version = "0.86.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "11aa8aa624c72cc1c94ea3d0739fa61248260b5b14d3646f51593a88d67f3e6e"
-
-[[package]]
-name = "cranelift-frontend"
-version = "0.86.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "544ee8f4d1c9559c9aa6d46e7aaeac4a13856d620561094f35527356c7d21bd0"
-dependencies = [
- "cranelift-codegen",
- "log",
- "smallvec",
- "target-lexicon",
-]
-
-[[package]]
-name = "cranelift-isle"
-version = "0.86.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ed16b14363d929b8c37e3c557d0a7396791b383ecc302141643c054343170aad"
-
-[[package]]
-name = "cranelift-jit"
-version = "0.86.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0308e7418208639fb96c1a3dc04955fa41c4bc92dfce9106635185f71d5caf46"
-dependencies = [
- "anyhow",
- "cranelift-codegen",
- "cranelift-entity",
- "cranelift-module",
- "cranelift-native",
- "libc",
- "log",
- "region",
- "target-lexicon",
- "windows-sys",
-]
-
-[[package]]
-name = "cranelift-module"
-version = "0.86.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "76979aac10dbcf0c222cd5902565bc93597ac30bbe9d879a2aa5f2402d1561f2"
-dependencies = [
- "anyhow",
- "cranelift-codegen",
-]
-
-[[package]]
-name = "cranelift-native"
-version = "0.86.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "51617cf8744634f2ed3c989c3c40cd6444f63377c6d994adab0d85807f3eb682"
-dependencies = [
- "cranelift-codegen",
- "libc",
- "target-lexicon",
-]
-
 [[package]]
 name = "crc32fast"
 version = "1.3.2"
@@ -1854,15 +1739,6 @@ dependencies = [
  "winapi",
 ]
 
-[[package]]
-name = "gimli"
-version = "0.26.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "22030e2c5a68ec659fde1e949a745124b48e6fa8b045b7ed5bd1fe4ccc5c4e5d"
-dependencies = [
- "indexmap",
-]
-
 [[package]]
 name = "glam"
 version = "0.21.3"
@@ -2058,7 +1934,6 @@ dependencies = [
  "serde",
  "serde_json",
  "synfx-dsp",
- "synfx-dsp-jit",
  "triple_buffer",
 ]
 
@@ -3189,18 +3064,6 @@ dependencies = [
  "bitflags",
 ]
 
-[[package]]
-name = "regalloc2"
-version = "0.3.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d43a209257d978ef079f3d446331d0f1794f5e0fc19b306a199983857833a779"
-dependencies = [
- "fxhash",
- "log",
- "slice-group-by",
- "smallvec",
-]
-
 [[package]]
 name = "regex"
 version = "1.6.0"
@@ -3227,18 +3090,6 @@ version = "0.6.27"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a3f87b73ce11b1619a3c6332f45341e0047173771e8b8b73f87bfeefb7b56244"
 
-[[package]]
-name = "region"
-version = "2.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "877e54ea2adcd70d80e9179344c97f93ef0dffd6b03e1f4529e6e83ab2fa9ae0"
-dependencies = [
- "bitflags",
- "libc",
- "mach",
- "winapi",
-]
-
 [[package]]
 name = "renderdoc-sys"
 version = "0.7.1"
@@ -3402,12 +3253,6 @@ dependencies = [
  "autocfg",
 ]
 
-[[package]]
-name = "slice-group-by"
-version = "0.3.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "03b634d87b960ab1a38c4fe143b508576f075e7c978bfad18217645ebfdfa2ec"
-
 [[package]]
 name = "slotmap"
 version = "1.0.6"
@@ -3491,21 +3336,6 @@ dependencies = [
  "num-traits",
 ]
 
-[[package]]
-name = "synfx-dsp-jit"
-version = "0.5.3"
-source = "git+https://github.com/WeirdConstructor/synfx-dsp-jit#f199ec697292ed59e92976d7404d6988e0a8d6b0"
-dependencies = [
- "anyhow",
- "cranelift",
- "cranelift-codegen",
- "cranelift-jit",
- "cranelift-module",
- "cranelift-native",
- "ringbuf",
- "synfx-dsp",
-]
-
 [[package]]
 name = "taffy"
 version = "0.1.0"
@@ -3519,12 +3349,6 @@ dependencies = [
  "typenum",
 ]
 
-[[package]]
-name = "target-lexicon"
-version = "0.12.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c02424087780c9b71cc96799eaeddff35af2bc513278cda5c99fc1f5d026d3c1"
-
 [[package]]
 name = "termcolor"
 version = "1.1.3"

Cargo.toml

@@ -9,12 +9,16 @@ edition = "2021"
 bevy = "0.8.0"
 bevy-inspector-egui = "0.12.1"
 bevy_rapier2d = "0.16.2"
-cpal = "0.14.0"
 crossbeam-channel = "0.5.6"
-hexodsp = { git = "https://github.com/WeirdConstructor/HexoDSP" }
-ticktock = "0.8.0"
 rand = "0.8.5"
 rand_distr = "0.4.3"
 
+[target."cfg(not(target_arch = \"wasm32\"))".dependencies]
+cpal = "0.14.0"
+hexodsp = { git = "https://github.com/WeirdConstructor/HexoDSP", default-features = false }
+ticktock = "0.8.0"
+
+[target."cfg(target_arch = \"wasm32\")".dependencies]
+
 [profile.dev.package."*"]
 opt-level = 3

README.md

@@ -24,6 +24,8 @@ cargo build --release
 
 ### WASM
 
+**Audio does not work in WASM!**
+
 ```bash
 rustup target add wasm32-unknown-unknown
 cargo install wasm-bindgen-cli

src/audio.rs

@@ -1,23 +1,25 @@
 // https://github.com/WeirdConstructor/HexoDSP/blob/master/examples/cpal_demo_node_api.rs
 
+use crate::game::AudioMsg;
+
 use cpal::traits::{DeviceTrait, HostTrait, StreamTrait};
 use crossbeam_channel::Receiver;
 use hexodsp::{matrix_repr::MatrixRepr, *};
 use std::io::Read;
 use ticktock::Clock;
 
-pub enum AudioMsg {
-	Color([f32; 3]),
-	Jump,
-}
-
 pub fn setup(event_channel: Receiver<AudioMsg>) {
+	#[cfg(not(target_arch = "wasm32"))]
+	let matrix_repr: MatrixRepr = {
 		let mut buf = String::new();
 		std::fs::File::open("assets/init.hxy")
 			.unwrap()
 			.read_to_string(&mut buf)
 			.unwrap();
-	let matrix_repr: MatrixRepr = MatrixRepr::deserialize(&buf).unwrap();
+		MatrixRepr::deserialize(&buf).unwrap()
+	};
+	#[cfg(target_arch = "wasm32")]
+	let matrix_repr: MatrixRepr = MatrixRepr::deserialize(include_str!("../assets/init.hxy")).unwrap();
 
 	let (node_conf, node_exec) = new_node_engine();
 

src/game.rs

@@ -1,8 +1,6 @@
 #![allow(clippy::precedence)]
 #![allow(clippy::too_many_arguments)]
 
-pub use crate::audio::AudioMsg;
-
 use crate::AppState;
 
 use bevy::{
@@ -13,6 +11,11 @@ use bevy::{
 use bevy_rapier2d::prelude::*;
 use std::collections::BTreeSet;
 
+pub enum AudioMsg {
+	Color([f32; 3]),
+	Jump,
+}
+
 #[derive(Clone, Copy, Eq, Hash, PartialEq)]
 pub struct LevelId(pub u32);
 
@@ -113,9 +116,11 @@ pub fn spawn_character(
 	selected_character_id: &mut Mut<SelectedCharacterId>,
 	character_id_list: &mut Mut<CharacterIdList>,
 	audio: &Res<crossbeam_channel::Sender<AudioMsg>>,
-	transform: Transform,
+	mut transform: Transform,
 	color: Color,
 ) {
+	transform.translation.z = transform.translation.z.max(1.0);
+
 	let character_id = CharacterId(
 		character_id_list
 			.0
@@ -303,11 +308,13 @@ fn win_setup(mut commands: Commands, asset_server: Res<AssetServer>) {
 }
 
 fn move_camera(
-	mut camera_query: Query<(&Camera, &mut Transform, &GlobalTransform)>,
+	mut camera_query: Query<(&Camera, &mut Transform)>,
 	characters: Query<(&CharacterId, &Transform), Without<Camera>>,
 	level_query: Query<&SelectedCharacterId>,
+	time: Res<Time>,
 ) {
-	const MARGIN: f32 = 128.0;
+	const MARGIN: f32 = 300.0;
+	const FOLLOW_SPEED: f32 = std::f32::consts::PI;
 
 	if let Ok(selected_character_id) = level_query.get_single() {
 		if let Some(selected_character_id) = &selected_character_id.0 {
@@ -315,25 +322,15 @@ fn move_camera(
 				.iter()
 				.find(|(character_id, _transform)| *character_id == selected_character_id)
 			{
-				let (camera, mut camera_transform, camera_global_transform) =
+				let (camera, mut camera_transform) =
 					camera_query.single_mut();
 
-				let pos = camera
-					.world_to_viewport(camera_global_transform, transform.translation)
-					.unwrap();
-				let size = camera.logical_viewport_size().unwrap();
-				if pos.x < MARGIN {
-					camera_transform.translation.x += pos.x - MARGIN;
-				}
-				if pos.x > size.x - MARGIN {
-					camera_transform.translation.x += MARGIN + pos.x - size.x;
-				}
-				if pos.y < MARGIN {
-					camera_transform.translation.y += pos.y - MARGIN;
-				}
-				if pos.y > size.y - MARGIN {
-					camera_transform.translation.y += MARGIN + pos.y - size.y;
-				}
+				let size: Vec2 = camera.logical_viewport_size().unwrap();
+				let half_height: f32 = size.y * 0.5;
+				camera_transform.translation = camera_transform.translation.lerp(transform.translation, time.delta_seconds() * FOLLOW_SPEED);
+				// prevent camera from going too low
+				camera_transform.translation.y = camera_transform.translation.y.max(half_height-MARGIN);
+				camera_transform.translation.z = 999.0;
 			}
 		}
 	}

src/main.rs

@@ -1,14 +1,11 @@
+#[cfg(not(target_arch = "wasm32"))]
 mod audio;
 mod game;
 mod levels;
 mod menu;
 mod particle_effect;
 
-use bevy::{
-	core_pipeline::clear_color::ClearColorConfig,
-	prelude::*,
-	render::settings::{WgpuFeatures, WgpuSettings},
-};
+use bevy::{core_pipeline::clear_color::ClearColorConfig, prelude::*};
 use bevy_rapier2d::prelude::*;
 
 #[derive(Clone, Copy, Debug, Eq, Hash, PartialEq)]
@@ -19,16 +16,13 @@ enum AppState {
 }
 
 fn main() {
-	let (audio_event_sender, audio_event_receiver) = crossbeam_channel::bounded(512);
+	let (audio_event_sender, audio_event_receiver) =
+		crossbeam_channel::bounded::<game::AudioMsg>(512);
 
+	#[cfg(not(target_arch = "wasm32"))]
 	std::thread::spawn(move || audio::setup(audio_event_receiver));
 
-	let mut options = WgpuSettings::default();
-	options
-		.features
-		.set(WgpuFeatures::VERTEX_WRITABLE_STORAGE, true);
 	App::new()
-		.insert_resource(options)
 		.insert_resource(audio_event_sender)
 		.add_state(AppState::Menu)
 		.add_plugins(DefaultPlugins)
@@ -43,6 +37,9 @@ fn main() {
 }
 
 fn setup(mut commands: Commands, asset_server: Res<AssetServer>) {
+	#[cfg(not(target_arch = "wasm32"))]
+	let font: Handle<Font> = asset_server.load("UacariLegacy-Thin.ttf");
+	#[cfg(target_arch = "wasm32")]
 	let font: Handle<Font> = asset_server.load("UacariLegacy-Thin.ttf");
 	commands.insert_resource(font);
 

src/particle_effect.rs

@@ -2,7 +2,10 @@ use bevy::{prelude::*, sprite::Mesh2dHandle};
 use rand::Rng;
 use rand_distr::{Distribution, UnitCircle};
 
+#[cfg(not(target_arch = "wasm32"))]
 pub const POOL_COUNT: usize = 100;
+#[cfg(target_arch = "wasm32")]
+pub const POOL_COUNT: usize = 50;
 
 pub const MIN_VELOCITY: f32 = 10.0;
 pub const MAX_VELOCITY: f32 = 100.0;