├── .gitignore ├── dist ├── c16f43ccab50cb089bcf.module.wasm ├── index.html ├── 1.bundle.js └── bundle.js ├── .travis.yml ├── index.html ├── package.json ├── webpack.config.js ├── README.md ├── .bin └── create-rust-webpack.js ├── js └── index.js ├── LICENSE-MIT ├── crate ├── Cargo.toml └── src │ └── lib.rs └── LICENSE-APACHE /.gitignore: -------------------------------------------------------------------------------- 1 | # dist 2 | node_modules 3 | crate/bin 4 | crate/pkg 5 | crate/target 6 | crate/wasm-pack.log 7 | crate/Cargo.lock 8 | .DS_Store 9 | -------------------------------------------------------------------------------- /dist/c16f43ccab50cb089bcf.module.wasm: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/renjithgr/wasm-make-some-snow/HEAD/dist/c16f43ccab50cb089bcf.module.wasm -------------------------------------------------------------------------------- /.travis.yml: -------------------------------------------------------------------------------- 1 | language: rust 2 | 3 | install: 4 | - curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.33.8/install.sh | bash 5 | - source ~/.nvm/nvm.sh 6 | - nvm install v10.5 7 | - curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh -s -- -f 8 | 9 | script: 10 | - npm install 11 | - npm run build 12 | -------------------------------------------------------------------------------- /index.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | My awesome Rust, WebAssembly, and Webpack application 6 | 7 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | -------------------------------------------------------------------------------- /dist/index.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | My awesome Rust, WebAssembly, and Webpack application 6 | 7 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | -------------------------------------------------------------------------------- /package.json: -------------------------------------------------------------------------------- 1 | { 2 | "author": "Renjith", 3 | "name": "create-rust-webpack", 4 | "version": "0.1.5", 5 | "repository": "https://github.com/rustwasm/rust-webpack-template", 6 | "license": "MIT", 7 | "scripts": { 8 | "start": "webpack-dev-server -d", 9 | "build": "webpack" 10 | }, 11 | "bin": { 12 | "create-rust-webpack": ".bin/create-rust-webpack.js" 13 | }, 14 | "devDependencies": { 15 | "@wasm-tool/wasm-pack-plugin": "0.2.3", 16 | "html-webpack-plugin": "^3.2.0", 17 | "webpack": "^4.29.4", 18 | "webpack-cli": "^3.2.3", 19 | "webpack-dev-server": "^3.1.14" 20 | } 21 | } 22 | -------------------------------------------------------------------------------- /webpack.config.js: -------------------------------------------------------------------------------- 1 | const path = require("path"); 2 | const HtmlWebpackPlugin = require("html-webpack-plugin"); 3 | 4 | const dist = path.resolve(__dirname, "dist"); 5 | const WasmPackPlugin = require("@wasm-tool/wasm-pack-plugin"); 6 | 7 | module.exports = { 8 | entry: "./js/index.js", 9 | output: { 10 | path: dist, 11 | filename: "bundle.js" 12 | }, 13 | devServer: { 14 | contentBase: dist, 15 | }, 16 | plugins: [ 17 | new HtmlWebpackPlugin({ 18 | template: 'index.html' 19 | }), 20 | 21 | new WasmPackPlugin({ 22 | crateDirectory: path.resolve(__dirname, "crate") 23 | }), 24 | ] 25 | }; 26 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # :crab::snowflake: `Wasm - Make Some SNOW!` 2 | 3 | WebAssembly port of the [**:snowflake: Let's make some SNOW!**](https://www.youtube.com/watch?v=VW8qoyYzWGg "Link to Paul's make some snow tutorial") tutorial by the awesome Paul Lewis ([@paullewis](https://github.com/paullewis)). 4 | 5 | [**Demo**](https://zen-liskov-772f98.netlify.com/) 6 | 7 | ## Run it locally 8 | 9 | First, [install `wasm-pack`!](https://rustwasm.github.io/wasm-pack/installer/) 10 | 11 | * `npm run start` -- Serve the project locally for development at 12 | `http://localhost:8080`. 13 | 14 | * `npm run build` -- Bundle the project (in production mode). 15 | -------------------------------------------------------------------------------- /.bin/create-rust-webpack.js: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env node 2 | 3 | const { spawnSync } = require("child_process"); 4 | const fs = require("fs"); 5 | 6 | function run(cmd, args, opts) { 7 | const output = spawnSync(cmd, args, opts); 8 | 9 | if (output.error != null) { 10 | throw output.error; 11 | } 12 | 13 | if (output.status !== 0) { 14 | throw new Error("Bad error code when running `" + cmd + " " + args.join(" ") + "`: " + output.status); 15 | } 16 | } 17 | 18 | let folderName = '.'; 19 | 20 | if (process.argv.length >= 3) { 21 | folderName = process.argv[2]; 22 | if (!fs.existsSync(folderName)) { 23 | fs.mkdirSync(folderName); 24 | } 25 | } 26 | 27 | run("git", ["clone", "https://github.com/rustwasm/rust-webpack-template.git", folderName]); 28 | 29 | console.log(" 🦀 Rust + 🕸 WebAssembly + Webpack = ❤️ "); 30 | 31 | run("npm", ["install"], { cwd: folderName, shell: true }); 32 | 33 | console.log(" Installed dependencies ✅ "); 34 | -------------------------------------------------------------------------------- /js/index.js: -------------------------------------------------------------------------------- 1 | import("../crate/pkg").then(module => { 2 | 3 | const canvas = document.createElement('canvas'); 4 | const context = canvas.getContext('2d'); 5 | document.body.appendChild(canvas); 6 | 7 | const flakes = 500; 8 | const snowflakes = []; 9 | 10 | for(let s = 0; s < flakes; s++) { 11 | snowflakes.push(module.Snowflake.new(window.innerWidth, window.innerHeight)); 12 | } 13 | 14 | function update() { 15 | 16 | context.clearRect(0, 0, window.innerWidth, window.innerHeight); 17 | 18 | for(const flake of snowflakes) { 19 | flake.tick() 20 | context.save(); 21 | context.fillStyle = '#FFF'; 22 | context.beginPath(); 23 | context.arc(flake.x(), flake.y(), flake.radius(), 0, Math.PI * 2); 24 | context.closePath(); 25 | context.globalAlpha = flake.alpha(); 26 | context.fill(); 27 | context.restore(); 28 | } 29 | 30 | requestAnimationFrame(update); 31 | } 32 | 33 | requestAnimationFrame(update); 34 | 35 | }); 36 | 37 | -------------------------------------------------------------------------------- /dist/1.bundle.js: -------------------------------------------------------------------------------- 1 | (window.webpackJsonp=window.webpackJsonp||[]).push([[1],[,function(r,t,n){"use strict";n.r(t),n.d(t,"rand_between",function(){return u}),n.d(t,"rand_int",function(){return i}),n.d(t,"rand_dir",function(){return o}),n.d(t,"__wbg_random_82b8304ac5b16e30",function(){return c}),n.d(t,"Snowflake",function(){return a}),n.d(t,"__wbindgen_throw",function(){return d});var e=n(2);function u(r,t){return e.c(r,t)}function i(r){return e.e(r)}function o(){return e.d()}function c(){return Math.random()}class a{static __wrap(r){const t=Object.create(a.prototype);return t.ptr=r,t}free(){const r=this.ptr;this.ptr=0,function(r){e.a(r)}(r)}tick(){return e.i(this.ptr)}static new(r,t){return a.__wrap(e.g(r,t))}x(){return e.l(this.ptr)}y(){return e.m(this.ptr)}velocity_x(){return e.j(this.ptr)}velocity_y(){return e.k(this.ptr)}radius(){return e.h(this.ptr)}alpha(){return e.f(this.ptr)}}let f=new TextDecoder("utf-8"),s=null;function p(r,t){return f.decode((null!==s&&s.buffer===e.b.buffer||(s=new Uint8Array(e.b.buffer)),s).subarray(r,r+t))}function d(r,t){throw new Error(p(r,t))}},function(r,t,n){"use strict";var e=n.w[r.i];r.exports=e;n(1);e.n()}]]); -------------------------------------------------------------------------------- /LICENSE-MIT: -------------------------------------------------------------------------------- 1 | Copyright (c) 2015 The Rust Project Developers 2 | 3 | Permission is hereby granted, free of charge, to any 4 | person obtaining a copy of this software and associated 5 | documentation files (the "Software"), to deal in the 6 | Software without restriction, including without 7 | limitation the rights to use, copy, modify, merge, 8 | publish, distribute, sublicense, and/or sell copies of 9 | the Software, and to permit persons to whom the Software 10 | is furnished to do so, subject to the following 11 | conditions: 12 | 13 | The above copyright notice and this permission notice 14 | shall be included in all copies or substantial portions 15 | of the Software. 16 | 17 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF 18 | ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED 19 | TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A 20 | PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT 21 | SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY 22 | CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 23 | OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR 24 | IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 25 | DEALINGS IN THE SOFTWARE. 26 | -------------------------------------------------------------------------------- /crate/Cargo.toml: -------------------------------------------------------------------------------- 1 | [package] 2 | authors = ["The RustWasm Developers"] 3 | categories = ["wasm"] 4 | description = "My super awesome Rust, WebAssembly, and Webpack project!" 5 | license = "Apache-2.0/MIT" 6 | name = "rust-webpack" 7 | readme = "./README.md" 8 | repository = "https://github.com/rustwasm/rust-webpack-template" 9 | version = "0.1.0" 10 | 11 | [lib] 12 | crate-type = ["cdylib"] 13 | 14 | [dependencies] 15 | cfg-if = "0.1.5" 16 | wasm-bindgen = "0.2.25" 17 | rand = "0.6.3" 18 | js-sys = "0.3.5" 19 | 20 | # The `console_error_panic_hook` crate provides better debugging of panics by 21 | # logging them with `console.error`. This is great for development, but requires 22 | # all the `std::fmt` and `std::panicking` infrastructure, so isn't great for 23 | # code size when deploying. 24 | console_error_panic_hook = { version = "0.1.5", optional = true } 25 | 26 | # `wee_alloc` is a tiny allocator for wasm that is only ~1K in code size 27 | # compared to the default allocator's ~10K. It is slower than the default 28 | # allocator, however. 29 | wee_alloc = { version = "0.4.2", optional = true } 30 | 31 | [dependencies.web-sys] 32 | version = "0.3" 33 | features = [ 34 | "Document", 35 | "Element", 36 | "HtmlElement", 37 | "Node", 38 | "Window", 39 | ] 40 | 41 | [features] 42 | default = ["console_error_panic_hook"] 43 | -------------------------------------------------------------------------------- /crate/src/lib.rs: -------------------------------------------------------------------------------- 1 | #[macro_use] 2 | extern crate cfg_if; 3 | extern crate js_sys; 4 | extern crate wasm_bindgen; 5 | 6 | use wasm_bindgen::prelude::*; 7 | 8 | cfg_if! { 9 | // When the `console_error_panic_hook` feature is enabled, we can call the 10 | // `set_panic_hook` function to get better error messages if we ever panic. 11 | if #[cfg(feature = "console_error_panic_hook")] { 12 | extern crate console_error_panic_hook; 13 | use console_error_panic_hook::set_once as set_panic_hook; 14 | } else { 15 | #[inline] 16 | fn set_panic_hook() {} 17 | } 18 | } 19 | 20 | cfg_if! { 21 | // When the `wee_alloc` feature is enabled, use `wee_alloc` as the global 22 | // allocator. 23 | if #[cfg(feature = "wee_alloc")] { 24 | extern crate wee_alloc; 25 | #[global_allocator] 26 | static ALLOC: wee_alloc::WeeAlloc = wee_alloc::WeeAlloc::INIT; 27 | } 28 | } 29 | 30 | #[wasm_bindgen] 31 | pub fn rand_between(min: f64, max: f64) -> f64 { 32 | (js_sys::Math::random() * (max - min) + min) as f64 33 | } 34 | 35 | #[wasm_bindgen] 36 | pub fn rand_int(n: i32) -> i32 { 37 | (js_sys::Math::random() * n as f64) as i32 38 | } 39 | 40 | #[wasm_bindgen] 41 | pub fn rand_dir() -> i32 { 42 | let i = rand_int(1000); 43 | (i % 3) - 1 44 | } 45 | 46 | #[wasm_bindgen] 47 | pub struct Snowflake { 48 | maxWidth: f64, 49 | maxHeight: f64, 50 | x: f64, 51 | y: f64, 52 | velocity_x: f64, 53 | velocity_y: f64, 54 | radius: f64, 55 | alpha: f64 56 | } 57 | 58 | #[wasm_bindgen] 59 | impl Snowflake { 60 | 61 | pub fn tick(&mut self) { 62 | self.x = self.x + self.velocity_x; 63 | self.y = self.y + self.velocity_y; 64 | 65 | if(self.y + self.radius > self.maxHeight) { 66 | self.x = rand_between(0.0, self.maxWidth); 67 | self.y = rand_between(0.0, -self.maxHeight); 68 | self.velocity_x = rand_between(-3.0, 3.0); 69 | self.velocity_y = rand_between(2.0, 5.0); 70 | self.radius = rand_between(1.0, 2.0); 71 | self.alpha = rand_between(0.1, 0.9); 72 | } 73 | } 74 | 75 | pub fn new(maxWidth: f64, maxHeight: f64) -> Snowflake { 76 | Snowflake { 77 | maxWidth: maxWidth, 78 | maxHeight: maxHeight, 79 | x: rand_between(0.0, maxWidth), 80 | y: rand_between(0.0, maxHeight), 81 | velocity_x: rand_between(-3.0, 3.0), 82 | velocity_y: rand_between(2.0, 5.0), 83 | radius: rand_between(1.0, 4.0), 84 | alpha: rand_between(0.1, 0.9) 85 | } 86 | } 87 | 88 | pub fn x(&self) -> f64 { 89 | self.x 90 | } 91 | 92 | pub fn y(&self) -> f64 { 93 | self.y 94 | } 95 | 96 | pub fn velocity_x(&self) -> f64 { 97 | self.velocity_x 98 | } 99 | 100 | pub fn velocity_y(&self) -> f64 { 101 | self.velocity_y 102 | } 103 | 104 | pub fn radius(&self) -> f64 { 105 | self.radius 106 | } 107 | 108 | pub fn alpha(&self) -> f64 { 109 | self.alpha 110 | } 111 | } -------------------------------------------------------------------------------- /dist/bundle.js: -------------------------------------------------------------------------------- 1 | !function(e){function n(n){for(var t,o,i=n[0],a=n[1],u=0,c=[];u{const n=document.createElement("canvas"),t=n.getContext("2d");document.body.appendChild(n);const r=[];for(let n=0;n<500;n++)r.push(e.Snowflake.new(window.innerWidth,window.innerHeight));requestAnimationFrame(function e(){t.clearRect(0,0,window.innerWidth,window.innerHeight);for(const e of r)e.tick(),t.save(),t.fillStyle="#FFF",t.beginPath(),t.arc(e.x(),e.y(),e.radius(),0,2*Math.PI),t.closePath(),t.globalAlpha=e.alpha(),t.fill(),t.restore();requestAnimationFrame(e)})})}]); -------------------------------------------------------------------------------- /LICENSE-APACHE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. 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