├── firestore.indexes.json ├── .firebaserc ├── public ├── assets │ ├── image │ │ └── fav.png │ ├── lib │ │ ├── katex │ │ │ ├── contrib │ │ │ │ ├── copy-tex.min.css │ │ │ │ ├── copy-tex.css │ │ │ │ ├── mathtex-script-type.mjs │ │ │ │ ├── mathtex-script-type.min.js │ │ │ │ ├── copy-tex.min.js │ │ │ │ ├── copy-tex.mjs │ │ │ │ ├── auto-render.min.js │ │ │ │ ├── mathtex-script-type.js │ │ │ │ ├── auto-render.mjs │ │ │ │ ├── copy-tex.js │ │ │ │ ├── auto-render.js │ │ │ │ └── mhchem.min.js │ │ │ ├── fonts │ │ │ │ ├── KaTeX_Main-Bold.ttf │ │ │ │ ├── KaTeX_AMS-Regular.ttf │ │ │ │ ├── KaTeX_Main-Bold.woff │ │ │ │ ├── KaTeX_Main-Bold.woff2 │ │ │ │ ├── KaTeX_Main-Italic.ttf │ │ │ │ ├── KaTeX_Math-Italic.ttf │ │ │ │ ├── KaTeX_AMS-Regular.woff │ │ │ │ ├── KaTeX_AMS-Regular.woff2 │ │ │ │ ├── KaTeX_Fraktur-Bold.ttf │ │ │ │ ├── KaTeX_Fraktur-Bold.woff │ │ │ │ ├── KaTeX_Fraktur-Bold.woff2 │ │ │ │ ├── KaTeX_Main-Italic.woff │ │ │ │ ├── KaTeX_Main-Italic.woff2 │ │ │ │ ├── KaTeX_Main-Regular.ttf │ │ │ │ ├── KaTeX_Main-Regular.woff │ │ │ │ ├── KaTeX_Main-Regular.woff2 │ │ │ │ ├── KaTeX_Math-Italic.woff │ │ │ │ ├── KaTeX_Math-Italic.woff2 │ │ │ │ ├── KaTeX_SansSerif-Bold.ttf │ │ │ │ ├── KaTeX_Script-Regular.ttf │ │ │ │ ├── KaTeX_Size1-Regular.ttf │ │ │ │ ├── KaTeX_Size1-Regular.woff │ │ │ │ ├── KaTeX_Size2-Regular.ttf │ │ │ │ ├── KaTeX_Size2-Regular.woff │ │ │ │ ├── KaTeX_Size3-Regular.ttf │ │ │ │ ├── KaTeX_Size3-Regular.woff │ │ │ │ ├── KaTeX_Size4-Regular.ttf │ │ │ │ ├── KaTeX_Size4-Regular.woff │ │ │ │ ├── KaTeX_Caligraphic-Bold.ttf │ │ │ │ ├── KaTeX_Fraktur-Regular.ttf │ │ │ │ ├── KaTeX_Fraktur-Regular.woff │ │ │ │ ├── KaTeX_Main-BoldItalic.ttf │ │ │ │ ├── KaTeX_Main-BoldItalic.woff │ │ │ │ ├── KaTeX_Math-BoldItalic.ttf │ │ │ │ ├── KaTeX_Math-BoldItalic.woff │ │ │ │ ├── KaTeX_SansSerif-Bold.woff │ │ │ │ ├── KaTeX_SansSerif-Bold.woff2 │ │ │ │ ├── KaTeX_SansSerif-Italic.ttf │ │ │ │ ├── KaTeX_Script-Regular.woff │ │ │ │ ├── KaTeX_Script-Regular.woff2 │ │ │ │ ├── KaTeX_Size1-Regular.woff2 │ │ │ │ ├── KaTeX_Size2-Regular.woff2 │ │ │ │ ├── KaTeX_Size3-Regular.woff2 │ │ │ │ ├── KaTeX_Size4-Regular.woff2 │ │ │ │ ├── KaTeX_Caligraphic-Bold.woff │ │ │ │ ├── KaTeX_Caligraphic-Bold.woff2 │ │ │ │ ├── KaTeX_Caligraphic-Regular.ttf │ │ │ │ ├── KaTeX_Fraktur-Regular.woff2 │ │ │ │ ├── KaTeX_Main-BoldItalic.woff2 │ │ │ │ ├── KaTeX_Math-BoldItalic.woff2 │ │ │ │ ├── KaTeX_SansSerif-Italic.woff │ │ │ │ ├── KaTeX_SansSerif-Italic.woff2 │ │ │ │ ├── KaTeX_SansSerif-Regular.ttf │ │ │ │ ├── KaTeX_SansSerif-Regular.woff │ │ │ │ ├── KaTeX_SansSerif-Regular.woff2 │ │ │ │ ├── KaTeX_Typewriter-Regular.ttf │ │ │ │ ├── KaTeX_Typewriter-Regular.woff │ │ │ │ ├── KaTeX_Caligraphic-Regular.woff │ │ │ │ ├── KaTeX_Caligraphic-Regular.woff2 │ │ │ │ └── KaTeX_Typewriter-Regular.woff2 │ │ │ ├── README.md │ │ │ ├── katex.min.css │ │ │ └── katex.css │ │ └── pixelmatch.js │ ├── js │ │ ├── firebase-config.js │ │ ├── normalizations.js │ │ └── index.js │ └── style │ │ └── style.css └── index.html ├── firestore.rules ├── firebase.json ├── README.md ├── LICENSE └── .gitignore /firestore.indexes.json: -------------------------------------------------------------------------------- 1 | { 2 | "indexes": [], 3 | "fieldOverrides": [] 4 | } 5 | -------------------------------------------------------------------------------- /.firebaserc: -------------------------------------------------------------------------------- 1 | { 2 | "projects": { 3 | "default": "texnique-b1956" 4 | } 5 | } 6 | -------------------------------------------------------------------------------- /public/assets/image/fav.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/akshayravikumar/TeXnique/HEAD/public/assets/image/fav.png -------------------------------------------------------------------------------- /public/assets/lib/katex/contrib/copy-tex.min.css: -------------------------------------------------------------------------------- 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/{document=**} { 5 | allow read, write; 6 | } 7 | } 8 | } -------------------------------------------------------------------------------- /firebase.json: -------------------------------------------------------------------------------- 1 | { 2 | "firestore": { 3 | "rules": "firestore.rules", 4 | "indexes": "firestore.indexes.json" 5 | }, 6 | "hosting": { 7 | "public": "public", 8 | "ignore": [ 9 | "firebase.json", 10 | "**/.*", 11 | "**/node_modules/**" 12 | ], 13 | "rewrites": [ 14 | { 15 | "source": "**", 16 | "destination": "/index.html" 17 | } 18 | ] 19 | } 20 | } 21 | -------------------------------------------------------------------------------- /public/assets/lib/katex/contrib/copy-tex.css: -------------------------------------------------------------------------------- 1 | /* Force selection of entire .katex/.katex-display blocks, so that we can 2 | * copy/paste the entire source code. If you omit this CSS, partial 3 | * selections of a formula will work, but will copy the ugly HTML 4 | * representation instead of the LaTeX source code. (Full selections will 5 | * still produce the LaTeX source code.) 6 | */ 7 | .katex, 8 | .katex-display { 9 | user-select: all; 10 | -moz-user-select: all; 11 | -webkit-user-select: all; 12 | -ms-user-select: all; 13 | } 14 | 15 | -------------------------------------------------------------------------------- /public/assets/js/firebase-config.js: -------------------------------------------------------------------------------- 1 | // Your web app's Firebase configuration 2 | // For Firebase JS SDK v7.20.0 and later, measurementId is optional 3 | const firebaseConfig = { 4 | apiKey: "AIzaSyDYHw9oVZ84207EQYobb7DcxYHJAeazov8", 5 | authDomain: "texnique-v3.firebaseapp.com", 6 | projectId: "texnique-v3", 7 | storageBucket: "texnique-v3.firebasestorage.app", 8 | messagingSenderId: "59805088347", 9 | appId: "1:59805088347:web:f780a0440e4e78d0c1dd7e", 10 | measurementId: "G-B052LGHXCW" 11 | }; 12 | 13 | // Initialize Firebase 14 | const app = firebase.initializeApp(firebaseConfig); 15 | const db = firebase.firestore(); 16 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # TeXnique 2 | 3 | A LaTeX speed-typesetting game. How many formulas can you recreate in three minutes? 4 | 5 | "Here’s a game that puts the fun in ‘underfilled hbox’" --[The Aperiodical](https://aperiodical.com/2019/09/texnique-a-latex-typesetting-game/) 6 | 7 | [HackerNews discussion](https://news.ycombinator.com/item?id=20814774) 8 | 9 | [Reddit discussion](https://www.reddit.com/r/math/comments/czwusd/texnique_a_latex_typesetting_game/) 10 | 11 | ## Contribution 12 | 13 | Contributors are welcome! If you'd like to contribute a problem, you can do so via [this form](https://forms.gle/DXjPeTL5DbJBhKRv8) or submit a pull request to this repository directly. 14 | -------------------------------------------------------------------------------- /public/assets/lib/katex/contrib/mathtex-script-type.mjs: -------------------------------------------------------------------------------- 1 | import katex from '../katex.mjs'; 2 | 3 | let scripts = document.body.getElementsByTagName("script"); 4 | scripts = Array.prototype.slice.call(scripts); 5 | scripts.forEach(function (script) { 6 | if (!script.type || !script.type.match(/math\/tex/i)) { 7 | return -1; 8 | } 9 | 10 | const display = script.type.match(/mode\s*=\s*display(;|\s|\n|$)/) != null; 11 | const katexElement = document.createElement(display ? "div" : "span"); 12 | katexElement.setAttribute("class", display ? "equation" : "inline-equation"); 13 | 14 | try { 15 | katex.render(script.text, katexElement, { 16 | displayMode: display 17 | }); 18 | } catch (err) { 19 | //console.error(err); linter doesn't like this 20 | katexElement.textContent = script.text; 21 | } 22 | 23 | script.parentNode.replaceChild(katexElement, script); 24 | }); 25 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | MIT License 2 | 3 | Copyright (c) 2019 Akshay Ravikumar, Rahul Sridhar 4 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy 6 | of this software and associated documentation files (the "Software"), to deal 7 | in the Software without restriction, including without limitation the rights 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 | copies of the Software, and to permit persons to whom the Software is 10 | furnished to do so, subject to the following conditions: 11 | 12 | The above copyright notice and this permission notice shall be included in all 13 | copies or substantial portions of the Software. 14 | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 | SOFTWARE. 22 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # Logs 2 | logs 3 | *.log 4 | npm-debug.log* 5 | yarn-debug.log* 6 | yarn-error.log* 7 | firebase-debug.log* 8 | 9 | # Firebase cache 10 | .firebase/ 11 | 12 | # Firebase config 13 | 14 | # Uncomment this if you'd like others to create their own Firebase project. 15 | # For a team working on the same Firebase project(s), it is recommended to leave 16 | # it commented so all members can deploy to the same project(s) in .firebaserc. 17 | # .firebaserc 18 | 19 | # Runtime data 20 | pids 21 | *.pid 22 | *.seed 23 | *.pid.lock 24 | 25 | # Directory for instrumented libs generated by jscoverage/JSCover 26 | lib-cov 27 | 28 | # Coverage directory used by tools like istanbul 29 | coverage 30 | 31 | # nyc test coverage 32 | .nyc_output 33 | 34 | # Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files) 35 | .grunt 36 | 37 | # Bower dependency directory (https://bower.io/) 38 | bower_components 39 | 40 | # node-waf configuration 41 | .lock-wscript 42 | 43 | # Compiled binary addons (http://nodejs.org/api/addons.html) 44 | build/Release 45 | 46 | # Dependency directories 47 | node_modules/ 48 | 49 | # Optional npm cache directory 50 | .npm 51 | 52 | # Optional eslint cache 53 | .eslintcache 54 | 55 | # Optional REPL history 56 | .node_repl_history 57 | 58 | # Output of 'npm pack' 59 | *.tgz 60 | 61 | # Yarn Integrity file 62 | .yarn-integrity 63 | 64 | # dotenv environment variables file 65 | .env 66 | -------------------------------------------------------------------------------- /public/assets/js/normalizations.js: -------------------------------------------------------------------------------- 1 | /* Regex rules to apply to an inputted latex formula to correct for minor 2 | rendering differences. In order to qualify, a normalization must: 3 | - produce a nearly visually identical result 4 | - for example: \not \exists and \nexists don't look very similar, so this 5 | wouldn't count 6 | - be equivalently "correct" in some sense 7 | - for example: replacing \binom with \begin{pmatrix} doesn't qualify 8 | 9 | These calls are inherently subjective. For example, arguably \mid is more 10 | correct in some contexts than | but the symbols are so similar, and the 11 | correct practice so little known, that we'll count them all as the same. 12 | 13 | As a rule of thumb, if the only difference between two commands is the spacing 14 | they produce, we'll allow a rule to replace them. 15 | */ 16 | 17 | let normalizations = [ 18 | { 19 | "rule": /\\not\s*\\in(?!\w)/g, 20 | "replacement": String.raw`\notin` 21 | }, 22 | { 23 | "rule": /\\not\s*=/g, 24 | "replacement": String.raw`\neq` 25 | }, 26 | { 27 | "rule": /\\mid(?!\w)/g, 28 | "replacement": String.raw`|` 29 | }, 30 | { 31 | "rule": /\\Longleftrightarrow(?!\w)/g, 32 | "replacement": String.raw`\iff ` 33 | }, 34 | { 35 | "rule": /\\Longrightarrow(?!\w)/g, 36 | "replacement": String.raw`\implies` 37 | } 38 | ]; 39 | 40 | try { 41 | let space_rule = new RegExp("(?c?a.includeAA||!antialiased(t,o,l,r,i,e)&&!antialiased(e,o,l,r,i,t)?(n&&drawPixel(n,f,g,x,y),u++):n&&drawPixel(n,f,h,d,b):n&&drawGrayPixel(t,f,a.alpha,n)}return u}function isPixelData(t){return ArrayBuffer.isView(t)&&1===t.constructor.BYTES_PER_ELEMENT}function antialiased(t,e,n,r,i,a){const l=Math.max(e-1,0),o=Math.max(n-1,0),f=Math.min(e+1,r-1),s=Math.min(n+1,i-1),c=4*(n*r+e);let u,h,d,b,g=e===l||e===f||n===o||n===s?1:0,x=0,y=0;for(let i=l;i<=f;i++)for(let a=o;a<=s;a++){if(i===e&&a===n)continue;const l=colorDelta(t,t,c,4*(a*r+i),!0);if(0===l){if(++g>2)return!1}else ly&&(y=l,d=i,b=a)}return 0!==x&&0!==y&&(hasManySiblings(t,u,h,r,i)&&hasManySiblings(a,u,h,r,i)||hasManySiblings(t,d,b,r,i)&&hasManySiblings(a,d,b,r,i))}function hasManySiblings(t,e,n,r,i){const a=Math.max(e-1,0),l=Math.max(n-1,0),o=Math.min(e+1,r-1),f=Math.min(n+1,i-1),s=4*(n*r+e);let c=e===a||e===o||n===l||n===f?1:0;for(let i=a;i<=o;i++)for(let a=l;a<=f;a++){if(i===e&&a===n)continue;const l=4*(a*r+i);if(t[s]===t[l]&&t[s+1]===t[l+1]&&t[s+2]===t[l+2]&&t[s+3]===t[l+3]&&c++,c>2)return!0}return!1}function colorDelta(t,e,n,r,i){let a=t[n+0],l=t[n+1],o=t[n+2],f=t[n+3],s=e[r+0],c=e[r+1],u=e[r+2],h=e[r+3];if(f===h&&a===s&&l===c&&o===u)return 0;f<255&&(a=blend(a,f/=255),l=blend(l,f),o=blend(o,f)),h<255&&(s=blend(s,h/=255),c=blend(c,h),u=blend(u,h));const d=rgb2y(a,l,o)-rgb2y(s,c,u);if(i)return d;const b=rgb2i(a,l,o)-rgb2i(s,c,u),g=rgb2q(a,l,o)-rgb2q(s,c,u);return.5053*d*d+.299*b*b+.1957*g*g}function rgb2y(t,e,n){return.29889531*t+.58662247*e+.11448223*n}function rgb2i(t,e,n){return.59597799*t-.2741761*e-.32180189*n}function rgb2q(t,e,n){return.21147017*t-.52261711*e+.31114694*n}function blend(t,e){return 255+(t-255)*e}function drawPixel(t,e,n,r,i){t[e+0]=n,t[e+1]=r,t[e+2]=i,t[e+3]=255}function drawGrayPixel(t,e,n,r){const i=blend(rgb2y(t[e+0],t[e+1],t[e+2]),n*t[e+3]/255);drawPixel(r,e,i,i,i)} 8 | //# sourceMappingURL=/sm/1bc043df263da0529d56337549c65db0ba51288fae37c5284367bb35d6639780.map -------------------------------------------------------------------------------- /public/assets/lib/katex/contrib/copy-tex.mjs: -------------------------------------------------------------------------------- 1 | // Set these to how you want inline and display math to be delimited. 2 | const defaultCopyDelimiters = { 3 | inline: ['$', '$'], 4 | // alternative: ['\(', '\)'] 5 | display: ['$$', '$$'] // alternative: ['\[', '\]'] 6 | 7 | }; // Replace .katex elements with their TeX source ( element). 8 | // Modifies fragment in-place. Useful for writing your own 'copy' handler, 9 | // as in copy-tex.js. 10 | 11 | const katexReplaceWithTex = function katexReplaceWithTex(fragment, copyDelimiters) { 12 | if (copyDelimiters === void 0) { 13 | copyDelimiters = defaultCopyDelimiters; 14 | } 15 | 16 | // Remove .katex-html blocks that are preceded by .katex-mathml blocks 17 | // (which will get replaced below). 18 | const katexHtml = fragment.querySelectorAll('.katex-mathml + .katex-html'); 19 | 20 | for (let i = 0; i < katexHtml.length; i++) { 21 | const element = katexHtml[i]; 22 | 23 | if (element.remove) { 24 | element.remove(null); 25 | } else { 26 | element.parentNode.removeChild(element); 27 | } 28 | } // Replace .katex-mathml elements with their annotation (TeX source) 29 | // descendant, with inline delimiters. 30 | 31 | 32 | const katexMathml = fragment.querySelectorAll('.katex-mathml'); 33 | 34 | for (let i = 0; i < katexMathml.length; i++) { 35 | const element = katexMathml[i]; 36 | const texSource = element.querySelector('annotation'); 37 | 38 | if (texSource) { 39 | if (element.replaceWith) { 40 | element.replaceWith(texSource); 41 | } else { 42 | element.parentNode.replaceChild(texSource, element); 43 | } 44 | 45 | texSource.innerHTML = copyDelimiters.inline[0] + texSource.innerHTML + copyDelimiters.inline[1]; 46 | } 47 | } // Switch display math to display delimiters. 48 | 49 | 50 | const displays = fragment.querySelectorAll('.katex-display annotation'); 51 | 52 | for (let i = 0; i < displays.length; i++) { 53 | const element = displays[i]; 54 | element.innerHTML = copyDelimiters.display[0] + element.innerHTML.substr(copyDelimiters.inline[0].length, element.innerHTML.length - copyDelimiters.inline[0].length - copyDelimiters.inline[1].length) + copyDelimiters.display[1]; 55 | } 56 | 57 | return fragment; 58 | }; 59 | 60 | document.addEventListener('copy', function (event) { 61 | const selection = window.getSelection(); 62 | 63 | if (selection.isCollapsed) { 64 | return; // default action OK if selection is empty 65 | } 66 | 67 | const fragment = selection.getRangeAt(0).cloneContents(); 68 | 69 | if (!fragment.querySelector('.katex-mathml')) { 70 | return; // default action OK if no .katex-mathml elements 71 | } // Preserve usual HTML copy/paste behavior. 72 | 73 | 74 | const html = []; 75 | 76 | for (let i = 0; i < fragment.childNodes.length; i++) { 77 | html.push(fragment.childNodes[i].outerHTML); 78 | } 79 | 80 | event.clipboardData.setData('text/html', html.join('')); // Rewrite plain-text version. 81 | 82 | event.clipboardData.setData('text/plain', katexReplaceWithTex(fragment).textContent); // Prevent normal copy handling. 83 | 84 | event.preventDefault(); 85 | }); 86 | -------------------------------------------------------------------------------- /public/assets/lib/katex/contrib/auto-render.min.js: -------------------------------------------------------------------------------- 1 | !function(e,t){"object"==typeof exports&&"object"==typeof module?module.exports=t(require("katex")):"function"==typeof define&&define.amd?define(["katex"],t):"object"==typeof exports?exports.renderMathInElement=t(require("katex")):e.renderMathInElement=t(e.katex)}("undefined"!=typeof self?self:this,function(e){return function(e){var t={};function r(n){if(t[n])return t[n].exports;var o=t[n]={i:n,l:!1,exports:{}};return e[n].call(o.exports,o,o.exports,r),o.l=!0,o.exports}return r.m=e,r.c=t,r.d=function(e,t,n){r.o(e,t)||Object.defineProperty(e,t,{enumerable:!0,get:n})},r.r=function(e){"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(e,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(e,"__esModule",{value:!0})},r.t=function(e,t){if(1&t&&(e=r(e)),8&t)return e;if(4&t&&"object"==typeof e&&e&&e.__esModule)return e;var n=Object.create(null);if(r.r(n),Object.defineProperty(n,"default",{enumerable:!0,value:e}),2&t&&"string"!=typeof e)for(var o in e)r.d(n,o,function(t){return e[t]}.bind(null,o));return n},r.n=function(e){var t=e&&e.__esModule?function(){return e.default}:function(){return e};return r.d(t,"a",t),t},r.o=function(e,t){return Object.prototype.hasOwnProperty.call(e,t)},r.p="",r(r.s=1)}([function(t,r){t.exports=e},function(e,t,r){"use strict";r.r(t);var n=r(0),o=r.n(n),a=function(e,t,r){for(var n=r,o=0,a=e.length;n](https://khan.github.io/KaTeX/) [![Build Status](https://travis-ci.org/Khan/KaTeX.svg?branch=master)](https://travis-ci.org/Khan/KaTeX) 2 | 3 | [![Join the chat at https://gitter.im/Khan/KaTeX](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/Khan/KaTeX?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge) 4 | 5 | KaTeX is a fast, easy-to-use JavaScript library for TeX math rendering on the web. 6 | 7 | * **Fast:** KaTeX renders its math synchronously and doesn't need to reflow the page. See how it compares to a competitor in [this speed test](http://jsperf.com/katex-vs-mathjax/). 8 | * **Print quality:** KaTeX’s layout is based on Donald Knuth’s TeX, the gold standard for math typesetting. 9 | * **Self contained:** KaTeX has no dependencies and can easily be bundled with your website resources. 10 | * **Server side rendering:** KaTeX produces the same output regardless of browser or environment, so you can pre-render expressions using Node.js and send them as plain HTML. 11 | 12 | KaTeX supports all major browsers, including Chrome, Safari, Firefox, Opera, and IE 8 - IE 11. A list of supported commands can be on the [wiki](https://github.com/Khan/KaTeX/wiki/Function-Support-in-KaTeX). 13 | 14 | ## Usage 15 | 16 | You can [download KaTeX](https://github.com/khan/katex/releases) and host it on your server or include the `katex.min.js` and `katex.min.css` files on your page directly from a CDN: 17 | 18 | ```html 19 | 20 | 21 | ``` 22 | 23 | #### In-browser rendering 24 | 25 | Call `katex.render` with a TeX expression and a DOM element to render into: 26 | 27 | ```js 28 | katex.render("c = \\pm\\sqrt{a^2 + b^2}", element); 29 | ``` 30 | 31 | If KaTeX can't parse the expression, it throws a `katex.ParseError` error. 32 | 33 | #### Server side rendering or rendering to a string 34 | 35 | To generate HTML on the server or to generate an HTML string of the rendered math, you can use `katex.renderToString`: 36 | 37 | ```js 38 | var html = katex.renderToString("c = \\pm\\sqrt{a^2 + b^2}"); 39 | // '...' 40 | ``` 41 | 42 | Make sure to include the CSS and font files, but there is no need to include the JavaScript. Like `render`, `renderToString` throws if it can't parse the expression. 43 | 44 | #### Rendering options 45 | 46 | You can provide an object of options as the last argument to `katex.render` and `katex.renderToString`. Available options are: 47 | 48 | - `displayMode`: `boolean`. If `true` the math will be rendered in display mode, which will put the math in display style (so `\int` and `\sum` are large, for example), and will center the math on the page on its own line. If `false` the math will be rendered in inline mode. (default: `false`) 49 | - `throwOnError`: `boolean`. If `true`, KaTeX will throw a `ParseError` when it encounters an unsupported command. If `false`, KaTeX will render the unsupported command as text in the color given by `errorColor`. (default: `true`) 50 | - `errorColor`: `string`. A color string given in the format `"#XXX"` or `"#XXXXXX"`. This option determines the color which unsupported commands are rendered in. (default: `#cc0000`) 51 | 52 | For example: 53 | 54 | ```js 55 | katex.render("c = \\pm\\sqrt{a^2 + b^2}", element, { displayMode: true }); 56 | ``` 57 | 58 | #### Automatic rendering of math on a page 59 | 60 | Math on the page can be automatically rendered using the auto-render extension. See [the Auto-render README](contrib/auto-render/README.md) for more information. 61 | 62 | ## Contributing 63 | 64 | See [CONTRIBUTING.md](CONTRIBUTING.md) 65 | 66 | ## License 67 | 68 | KaTeX is licensed under the [MIT License](http://opensource.org/licenses/MIT). 69 | -------------------------------------------------------------------------------- /public/assets/lib/katex/contrib/mathtex-script-type.js: -------------------------------------------------------------------------------- 1 | (function webpackUniversalModuleDefinition(root, factory) { 2 | if(typeof exports === 'object' && typeof module === 'object') 3 | module.exports = factory(require("katex")); 4 | else if(typeof define === 'function' && define.amd) 5 | define(["katex"], factory); 6 | else { 7 | var a = typeof exports === 'object' ? factory(require("katex")) : factory(root["katex"]); 8 | for(var i in a) (typeof exports === 'object' ? exports : root)[i] = a[i]; 9 | } 10 | })((typeof self !== 'undefined' ? self : this), function(__WEBPACK_EXTERNAL_MODULE__0__) { 11 | return /******/ (function(modules) { // webpackBootstrap 12 | /******/ // The module cache 13 | /******/ var installedModules = {}; 14 | /******/ 15 | /******/ // The require function 16 | /******/ function __webpack_require__(moduleId) { 17 | /******/ 18 | /******/ // Check if module is in cache 19 | /******/ if(installedModules[moduleId]) { 20 | /******/ return installedModules[moduleId].exports; 21 | /******/ } 22 | /******/ // Create a new module (and put it into the cache) 23 | /******/ var module = installedModules[moduleId] = { 24 | /******/ i: moduleId, 25 | /******/ l: false, 26 | /******/ exports: {} 27 | /******/ }; 28 | /******/ 29 | /******/ // Execute the module function 30 | /******/ modules[moduleId].call(module.exports, module, module.exports, __webpack_require__); 31 | /******/ 32 | /******/ // Flag the module as loaded 33 | /******/ module.l = true; 34 | /******/ 35 | /******/ // Return the exports of the module 36 | /******/ return module.exports; 37 | /******/ } 38 | /******/ 39 | /******/ 40 | /******/ // expose the modules object (__webpack_modules__) 41 | /******/ __webpack_require__.m = modules; 42 | /******/ 43 | /******/ // expose the module cache 44 | /******/ __webpack_require__.c = installedModules; 45 | /******/ 46 | /******/ // define getter function for harmony exports 47 | /******/ __webpack_require__.d = function(exports, name, getter) { 48 | /******/ if(!__webpack_require__.o(exports, name)) { 49 | /******/ Object.defineProperty(exports, name, { enumerable: true, get: getter }); 50 | /******/ } 51 | /******/ }; 52 | /******/ 53 | /******/ // define __esModule on exports 54 | /******/ __webpack_require__.r = function(exports) { 55 | /******/ if(typeof Symbol !== 'undefined' && Symbol.toStringTag) { 56 | /******/ Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' }); 57 | /******/ } 58 | /******/ Object.defineProperty(exports, '__esModule', { value: true }); 59 | /******/ }; 60 | /******/ 61 | /******/ // create a fake namespace object 62 | /******/ // mode & 1: value is a module id, require it 63 | /******/ // mode & 2: merge all properties of value into the ns 64 | /******/ // mode & 4: return value when already ns object 65 | /******/ // mode & 8|1: behave like require 66 | /******/ __webpack_require__.t = function(value, mode) { 67 | /******/ if(mode & 1) value = __webpack_require__(value); 68 | /******/ if(mode & 8) return value; 69 | /******/ if((mode & 4) && typeof value === 'object' && value && value.__esModule) return value; 70 | /******/ var ns = Object.create(null); 71 | /******/ __webpack_require__.r(ns); 72 | /******/ Object.defineProperty(ns, 'default', { enumerable: true, value: value }); 73 | /******/ if(mode & 2 && typeof value != 'string') for(var key in value) __webpack_require__.d(ns, key, function(key) { return value[key]; }.bind(null, key)); 74 | /******/ return ns; 75 | /******/ }; 76 | /******/ 77 | /******/ // getDefaultExport function for compatibility with non-harmony modules 78 | /******/ __webpack_require__.n = function(module) { 79 | /******/ var getter = module && module.__esModule ? 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"div" : "span"); 121 | katexElement.setAttribute("class", display ? "equation" : "inline-equation"); 122 | 123 | try { 124 | katex__WEBPACK_IMPORTED_MODULE_0___default.a.render(script.text, katexElement, { 125 | displayMode: display 126 | }); 127 | } catch (err) { 128 | //console.error(err); linter doesn't like this 129 | katexElement.textContent = script.text; 130 | } 131 | 132 | script.parentNode.replaceChild(katexElement, script); 133 | }); 134 | 135 | /***/ }) 136 | /******/ ])["default"]; 137 | }); -------------------------------------------------------------------------------- /public/assets/style/style.css: -------------------------------------------------------------------------------- 1 | @font-face{ 2 | font-family: KaTeX_Main; 3 | src: url('../lib/katex/fonts/KaTeX_Main-Regular.woff2') format('woff'); 4 | font-weight: 400; 5 | font-style: normal; 6 | } 7 | 8 | main { 9 | font-family: Katex_Main, serif; 10 | } 11 | 12 | .katex { 13 | font-size: 1.1em; 14 | } 15 | 16 | .centered-text { 17 | margin: auto; 18 | text-align: center; 19 | } 20 | 21 | #intro-window, #ending-window { 22 | text-align: center; 23 | } 24 | 25 | #reset-button { 26 | margin: auto; 27 | } 28 | 29 | #start-button { 30 | margin-left: auto; 31 | margin-right: auto; 32 | } 33 | 34 | #title { 35 | font-size: 2.4em; 36 | margin-top: 5px; 37 | margin-bottom: 15px; 38 | } 39 | 40 | #subtitle { 41 | font-size: 1.4em; 42 | } 43 | 44 | #hint-text { 45 | width: fit-content; 46 | width: -moz-fit-content; 47 | text-align: left; 48 | margin-left: auto; 49 | margin-right: auto; 50 | } 51 | 52 | #hint-list { 53 | padding-inline-start: 30px; 54 | margin-top: 6px; 55 | } 56 | 57 | #hint-list li { 58 | margin-top: 7px; 59 | } 60 | 61 | .latex-button { 62 | font-family: Katex_Main, serif; 63 | font-size: 1em; 64 | background-color: white; 65 | border: solid 2px black; 66 | padding: 10px; 67 | margin-left: 5px; 68 | margin-right: 5px; 69 | } 70 | 71 | .latex-button:hover { 72 | cursor: pointer; 73 | background-color: #eee; 74 | } 75 | 76 | .latex-button:focus { 77 | outline: none; 78 | background-color: #eee; 79 | } 80 | 81 | .latex-button:active { 82 | outline: none; 83 | background-color: #ccc; 84 | } 85 | 86 | 87 | #left-buttons { 88 | float: left; 89 | display: inline-block; 90 | } 91 | 92 | #skip-button, #end-game-button { 93 | margin-top: -10px; 94 | } 95 | 96 | #top-row { 97 | } 98 | 99 | #score-wrapper { 100 | display: inline-block; 101 | width: 80px; 102 | margin-left: calc(50% - 315px); 103 | } 104 | 105 | #timer-wrapper { 106 | display: inline-block; 107 | float: right; 108 | } 109 | 110 | #score { 111 | font-family: KaTeX_Main, serif; 112 | } 113 | 114 | #timer { 115 | font-family: KaTeX_Main, serif; 116 | } 117 | 118 | .latex { 119 | height: 100px; 120 | margin-left: auto; 121 | margin-right: auto; 122 | border: solid 2px black; 123 | display: flex; 124 | justify-content: center; 125 | flex-direction: column; 126 | overflow-x: auto; 127 | padding-left: 10px; 128 | padding-right: 10px; 129 | } 130 | 131 | .correct { 132 | border-color: #0d0; 133 | } 134 | 135 | .done { 136 | color: #d00; 137 | } 138 | 139 | #target { 140 | margin-left: auto; 141 | margin-right: auto; 142 | } 143 | 144 | @media only screen and (max-width : 992px) { 145 | #container { 146 | width: 85%; 147 | margin-left: auto; 148 | margin-right: auto; 149 | } 150 | } 151 | 152 | #container { 153 | width: 70%; 154 | margin-top: 50px; 155 | margin-left: auto; 156 | margin-right: auto; 157 | display: none; 158 | } 159 | 160 | #out { 161 | margin-left: auto; 162 | margin-right: auto; 163 | } 164 | 165 | #user-input { 166 | height: 100px; 167 | } 168 | 169 | .answer { 170 | user-select: none; 171 | text-align: left; 172 | padding: 2px; 173 | } 174 | 175 | .latex-source { 176 | font-family: 'Roboto Mono', monospace; 177 | resize: none; 178 | background-color: black; 179 | font-size: 20px; 180 | color: white; 181 | width: 100%; 182 | } 183 | 184 | #result { 185 | height: 20px; 186 | } 187 | 188 | .problem-header { 189 | font-size: 1.5em; 190 | } 191 | 192 | .title { 193 | font-weight: bold; 194 | } 195 | 196 | .out-container { 197 | position: relative; 198 | } 199 | #shadow-target { 200 | opacity: 1; 201 | z-index: 0; 202 | color: #ccc; 203 | display: none; 204 | } 205 | .latex.out { 206 | position: absolute; 207 | left: 0; 208 | top: 0; 209 | width: 100%; 210 | } 211 | .latex { 212 | box-sizing: border-box; 213 | } 214 | 215 | #toggle-shadow-desc { 216 | display: inline; 217 | margin-left: 10px; 218 | margin-top: auto; 219 | margin-bottom: auto; 220 | } 221 | 222 | #options-container { 223 | display: flex; 224 | align-items: center; 225 | } 226 | 227 | .checkbox { 228 | display: none; 229 | } 230 | 231 | label { 232 | display: inline; 233 | } 234 | 235 | .checkbox + label, .checkbox:checked + label { 236 | background-color: white; 237 | border: 2px solid black; 238 | padding: 8px; 239 | display: inline-block; 240 | position: relative; 241 | } 242 | 243 | .checkbox + label:active, .checkbox:checked + label:active { 244 | background-color: #eee; 245 | } 246 | 247 | .checkbox + label:focus, .checkbox:checked + label:focus { 248 | background-color: #eee; 249 | outline: 0; 250 | } 251 | 252 | .checkbox:checked + label:after { 253 | content: '\2714'; 254 | font-size: 14px; 255 | position: absolute; 256 | top: 0px; 257 | left: 3px; 258 | color: black; 259 | } 260 | 261 | #skipped-problems { 262 | display: none; 263 | } 264 | 265 | /* Leaderboard styles */ 266 | #leaderboard-section { 267 | max-width: 600px; 268 | margin: 20px auto; 269 | font-family: KaTeX_Main, serif; 270 | } 271 | 272 | .leaderboard-controls { 273 | display: flex; 274 | justify-content: center; 275 | gap: 10px; 276 | margin: 15px 0; 277 | } 278 | 279 | .leaderboard-controls .latex-button.active { 280 | background-color: #eee; 281 | } 282 | 283 | #leaderboard-list { 284 | margin: 20px auto; 285 | max-width: 500px; 286 | } 287 | 288 | .leaderboard-entry { 289 | display: flex; 290 | justify-content: space-between; 291 | align-items: center; 292 | padding: 8px 16px; 293 | background: #fff; 294 | border: 1px solid #ddd; 295 | margin: 5px 0; 296 | font-family: KaTeX_Main, serif; 297 | text-align: left; 298 | } 299 | 300 | .leaderboard-entry .rank { 301 | font-weight: bold; 302 | width: 40px; 303 | flex-shrink: 0; 304 | } 305 | 306 | .leaderboard-entry .name { 307 | flex: 1; 308 | margin: 0 20px; 309 | white-space: nowrap; 310 | overflow: hidden; 311 | text-overflow: ellipsis; 312 | max-width: 200px; 313 | } 314 | 315 | .leaderboard-entry .score { 316 | font-weight: bold; 317 | flex-shrink: 0; 318 | } 319 | 320 | #player-name { 321 | padding: 8px; 322 | font-size: 1em; 323 | border: solid 2px black; 324 | font-family: KaTeX_Main, serif; 325 | width: 200px; 326 | } 327 | 328 | #player-name:focus { 329 | outline: none; 330 | border-color: #666; 331 | } 332 | 333 | #submit-score { 334 | padding: 8px 16px; 335 | font-size: 16px; 336 | cursor: pointer; 337 | } 338 | -------------------------------------------------------------------------------- /public/assets/lib/katex/contrib/auto-render.mjs: -------------------------------------------------------------------------------- 1 | import katex from '../katex.mjs'; 2 | 3 | /* eslint no-constant-condition:0 */ 4 | const findEndOfMath = function findEndOfMath(delimiter, text, startIndex) { 5 | // Adapted from 6 | // https://github.com/Khan/perseus/blob/master/src/perseus-markdown.jsx 7 | let index = startIndex; 8 | let braceLevel = 0; 9 | const delimLength = delimiter.length; 10 | 11 | while (index < text.length) { 12 | const character = text[index]; 13 | 14 | if (braceLevel <= 0 && text.slice(index, index + delimLength) === delimiter) { 15 | return index; 16 | } else if (character === "\\") { 17 | index++; 18 | } else if (character === "{") { 19 | braceLevel++; 20 | } else if (character === "}") { 21 | braceLevel--; 22 | } 23 | 24 | index++; 25 | } 26 | 27 | return -1; 28 | }; 29 | 30 | const splitAtDelimiters = function splitAtDelimiters(startData, leftDelim, rightDelim, display) { 31 | const finalData = []; 32 | 33 | for (let i = 0; i < startData.length; i++) { 34 | if (startData[i].type === "text") { 35 | const text = startData[i].data; 36 | let lookingForLeft = true; 37 | let currIndex = 0; 38 | let nextIndex; 39 | nextIndex = text.indexOf(leftDelim); 40 | 41 | if (nextIndex !== -1) { 42 | currIndex = nextIndex; 43 | finalData.push({ 44 | type: "text", 45 | data: text.slice(0, currIndex) 46 | }); 47 | lookingForLeft = false; 48 | } 49 | 50 | while (true) { 51 | if (lookingForLeft) { 52 | nextIndex = text.indexOf(leftDelim, currIndex); 53 | 54 | if (nextIndex === -1) { 55 | break; 56 | } 57 | 58 | finalData.push({ 59 | type: "text", 60 | data: text.slice(currIndex, nextIndex) 61 | }); 62 | currIndex = nextIndex; 63 | } else { 64 | nextIndex = findEndOfMath(rightDelim, text, currIndex + leftDelim.length); 65 | 66 | if (nextIndex === -1) { 67 | break; 68 | } 69 | 70 | finalData.push({ 71 | type: "math", 72 | data: text.slice(currIndex + leftDelim.length, nextIndex), 73 | rawData: text.slice(currIndex, nextIndex + rightDelim.length), 74 | display: display 75 | }); 76 | currIndex = nextIndex + rightDelim.length; 77 | } 78 | 79 | lookingForLeft = !lookingForLeft; 80 | } 81 | 82 | finalData.push({ 83 | type: "text", 84 | data: text.slice(currIndex) 85 | }); 86 | } else { 87 | finalData.push(startData[i]); 88 | } 89 | } 90 | 91 | return finalData; 92 | }; 93 | 94 | /* eslint no-console:0 */ 95 | 96 | const splitWithDelimiters = function splitWithDelimiters(text, delimiters) { 97 | let data = [{ 98 | type: "text", 99 | data: text 100 | }]; 101 | 102 | for (let i = 0; i < delimiters.length; i++) { 103 | const delimiter = delimiters[i]; 104 | data = splitAtDelimiters(data, delimiter.left, delimiter.right, delimiter.display || false); 105 | } 106 | 107 | return data; 108 | }; 109 | /* Note: optionsCopy is mutated by this method. If it is ever exposed in the 110 | * API, we should copy it before mutating. 111 | */ 112 | 113 | 114 | const renderMathInText = function renderMathInText(text, optionsCopy) { 115 | const data = splitWithDelimiters(text, optionsCopy.delimiters); 116 | const fragment = document.createDocumentFragment(); 117 | 118 | for (let i = 0; i < data.length; i++) { 119 | if (data[i].type === "text") { 120 | fragment.appendChild(document.createTextNode(data[i].data)); 121 | } else { 122 | const span = document.createElement("span"); 123 | let math = data[i].data; // Override any display mode defined in the settings with that 124 | // defined by the text itself 125 | 126 | optionsCopy.displayMode = data[i].display; 127 | 128 | try { 129 | if (optionsCopy.preProcess) { 130 | math = optionsCopy.preProcess(math); 131 | } 132 | 133 | katex.render(math, span, optionsCopy); 134 | } catch (e) { 135 | if (!(e instanceof katex.ParseError)) { 136 | throw e; 137 | } 138 | 139 | optionsCopy.errorCallback("KaTeX auto-render: Failed to parse `" + data[i].data + "` with ", e); 140 | fragment.appendChild(document.createTextNode(data[i].rawData)); 141 | continue; 142 | } 143 | 144 | fragment.appendChild(span); 145 | } 146 | } 147 | 148 | return fragment; 149 | }; 150 | 151 | const renderElem = function renderElem(elem, optionsCopy) { 152 | for (let i = 0; i < elem.childNodes.length; i++) { 153 | const childNode = elem.childNodes[i]; 154 | 155 | if (childNode.nodeType === 3) { 156 | // Text node 157 | const frag = renderMathInText(childNode.textContent, optionsCopy); 158 | i += frag.childNodes.length - 1; 159 | elem.replaceChild(frag, childNode); 160 | } else if (childNode.nodeType === 1) { 161 | // Element node 162 | const className = ' ' + childNode.className + ' '; 163 | const shouldRender = optionsCopy.ignoredTags.indexOf(childNode.nodeName.toLowerCase()) === -1 && optionsCopy.ignoredClasses.every(x => className.indexOf(' ' + x + ' ') === -1); 164 | 165 | if (shouldRender) { 166 | renderElem(childNode, optionsCopy); 167 | } 168 | } // Otherwise, it's something else, and ignore it. 169 | 170 | } 171 | }; 172 | 173 | const renderMathInElement = function renderMathInElement(elem, options) { 174 | if (!elem) { 175 | throw new Error("No element provided to render"); 176 | } 177 | 178 | const optionsCopy = {}; // Object.assign(optionsCopy, option) 179 | 180 | for (const option in options) { 181 | if (options.hasOwnProperty(option)) { 182 | optionsCopy[option] = options[option]; 183 | } 184 | } // default options 185 | 186 | 187 | optionsCopy.delimiters = optionsCopy.delimiters || [{ 188 | left: "$$", 189 | right: "$$", 190 | display: true 191 | }, { 192 | left: "\\(", 193 | right: "\\)", 194 | display: false 195 | }, // LaTeX uses $…$, but it ruins the display of normal `$` in text: 196 | // {left: "$", right: "$", display: false}, 197 | // \[…\] must come last in this array. Otherwise, renderMathInElement 198 | // will search for \[ before it searches for $$ or \( 199 | // That makes it susceptible to finding a \\[0.3em] row delimiter and 200 | // treating it as if it were the start of a KaTeX math zone. 201 | { 202 | left: "\\[", 203 | right: "\\]", 204 | display: true 205 | }]; 206 | optionsCopy.ignoredTags = optionsCopy.ignoredTags || ["script", "noscript", "style", "textarea", "pre", "code"]; 207 | optionsCopy.ignoredClasses = optionsCopy.ignoredClasses || []; 208 | optionsCopy.errorCallback = optionsCopy.errorCallback || console.error; // Enable sharing of global macros defined via `\gdef` between different 209 | // math elements within a single call to `renderMathInElement`. 210 | 211 | optionsCopy.macros = optionsCopy.macros || {}; 212 | renderElem(elem, optionsCopy); 213 | }; 214 | 215 | export default renderMathInElement; 216 | -------------------------------------------------------------------------------- /public/assets/lib/katex/contrib/copy-tex.js: -------------------------------------------------------------------------------- 1 | (function webpackUniversalModuleDefinition(root, factory) { 2 | if(typeof exports === 'object' && typeof module === 'object') 3 | module.exports = factory(); 4 | else if(typeof define === 'function' && define.amd) 5 | define([], factory); 6 | else { 7 | var a = factory(); 8 | for(var i in a) (typeof exports === 'object' ? exports : root)[i] = a[i]; 9 | } 10 | })((typeof self !== 'undefined' ? self : this), function() { 11 | return /******/ (function(modules) { // webpackBootstrap 12 | /******/ // The module cache 13 | /******/ var installedModules = {}; 14 | /******/ 15 | /******/ // The require function 16 | /******/ function __webpack_require__(moduleId) { 17 | /******/ 18 | /******/ // Check if module is in cache 19 | /******/ if(installedModules[moduleId]) { 20 | /******/ return installedModules[moduleId].exports; 21 | /******/ } 22 | /******/ // Create a new module (and put it into the cache) 23 | /******/ var module = installedModules[moduleId] = { 24 | /******/ i: moduleId, 25 | /******/ l: false, 26 | /******/ exports: {} 27 | /******/ }; 28 | /******/ 29 | /******/ // Execute the module function 30 | /******/ modules[moduleId].call(module.exports, module, module.exports, __webpack_require__); 31 | /******/ 32 | /******/ // Flag the module as loaded 33 | /******/ module.l = true; 34 | /******/ 35 | /******/ // Return the exports of the module 36 | /******/ return module.exports; 37 | /******/ } 38 | /******/ 39 | /******/ 40 | /******/ // expose the modules object (__webpack_modules__) 41 | /******/ __webpack_require__.m = modules; 42 | /******/ 43 | /******/ // expose the module cache 44 | /******/ __webpack_require__.c = installedModules; 45 | /******/ 46 | /******/ // define getter function for harmony exports 47 | /******/ __webpack_require__.d = function(exports, name, getter) { 48 | /******/ if(!__webpack_require__.o(exports, name)) { 49 | /******/ Object.defineProperty(exports, name, { enumerable: true, get: getter }); 50 | /******/ } 51 | /******/ }; 52 | /******/ 53 | /******/ // define __esModule on exports 54 | /******/ __webpack_require__.r = function(exports) { 55 | /******/ if(typeof Symbol !== 'undefined' && Symbol.toStringTag) { 56 | /******/ Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' }); 57 | /******/ } 58 | /******/ Object.defineProperty(exports, '__esModule', { value: true }); 59 | /******/ }; 60 | /******/ 61 | /******/ // create a fake namespace object 62 | /******/ // mode & 1: value is a module id, require it 63 | /******/ // mode & 2: merge all properties of value into the ns 64 | /******/ // mode & 4: return value when already ns object 65 | /******/ // mode & 8|1: behave like require 66 | /******/ __webpack_require__.t = function(value, mode) { 67 | /******/ if(mode & 1) value = __webpack_require__(value); 68 | /******/ if(mode & 8) return value; 69 | /******/ if((mode & 4) && typeof value === 'object' && value && value.__esModule) return value; 70 | /******/ var ns = Object.create(null); 71 | /******/ __webpack_require__.r(ns); 72 | /******/ Object.defineProperty(ns, 'default', { enumerable: true, value: value }); 73 | /******/ if(mode & 2 && typeof value != 'string') for(var key in value) __webpack_require__.d(ns, key, function(key) { return value[key]; }.bind(null, key)); 74 | /******/ return ns; 75 | /******/ }; 76 | /******/ 77 | /******/ // getDefaultExport function for compatibility with non-harmony modules 78 | /******/ __webpack_require__.n = function(module) { 79 | /******/ var getter = module && module.__esModule ? 80 | /******/ function getDefault() { return module['default']; } : 81 | /******/ function getModuleExports() { return module; }; 82 | /******/ __webpack_require__.d(getter, 'a', getter); 83 | /******/ return getter; 84 | /******/ }; 85 | /******/ 86 | /******/ // Object.prototype.hasOwnProperty.call 87 | /******/ __webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); }; 88 | /******/ 89 | /******/ // __webpack_public_path__ 90 | /******/ __webpack_require__.p = ""; 91 | /******/ 92 | /******/ 93 | /******/ // Load entry module and return exports 94 | /******/ return __webpack_require__(__webpack_require__.s = 1); 95 | /******/ }) 96 | /************************************************************************/ 97 | /******/ ([ 98 | /* 0 */ 99 | /***/ (function(module, exports, __webpack_require__) { 100 | 101 | // extracted by mini-css-extract-plugin 102 | 103 | /***/ }), 104 | /* 1 */ 105 | /***/ (function(module, __webpack_exports__, __webpack_require__) { 106 | 107 | "use strict"; 108 | __webpack_require__.r(__webpack_exports__); 109 | 110 | // EXTERNAL MODULE: ./contrib/copy-tex/copy-tex.css 111 | var copy_tex = __webpack_require__(0); 112 | 113 | // CONCATENATED MODULE: ./contrib/copy-tex/katex2tex.js 114 | // Set these to how you want inline and display math to be delimited. 115 | var defaultCopyDelimiters = { 116 | inline: ['$', '$'], 117 | // alternative: ['\(', '\)'] 118 | display: ['$$', '$$'] // alternative: ['\[', '\]'] 119 | 120 | }; // Replace .katex elements with their TeX source ( element). 121 | // Modifies fragment in-place. Useful for writing your own 'copy' handler, 122 | // as in copy-tex.js. 123 | 124 | var katexReplaceWithTex = function katexReplaceWithTex(fragment, copyDelimiters) { 125 | if (copyDelimiters === void 0) { 126 | copyDelimiters = defaultCopyDelimiters; 127 | } 128 | 129 | // Remove .katex-html blocks that are preceded by .katex-mathml blocks 130 | // (which will get replaced below). 131 | var katexHtml = fragment.querySelectorAll('.katex-mathml + .katex-html'); 132 | 133 | for (var i = 0; i < katexHtml.length; i++) { 134 | var element = katexHtml[i]; 135 | 136 | if (element.remove) { 137 | element.remove(null); 138 | } else { 139 | element.parentNode.removeChild(element); 140 | } 141 | } // Replace .katex-mathml elements with their annotation (TeX source) 142 | // descendant, with inline delimiters. 143 | 144 | 145 | var katexMathml = fragment.querySelectorAll('.katex-mathml'); 146 | 147 | for (var _i = 0; _i < katexMathml.length; _i++) { 148 | var _element = katexMathml[_i]; 149 | 150 | var texSource = _element.querySelector('annotation'); 151 | 152 | if (texSource) { 153 | if (_element.replaceWith) { 154 | _element.replaceWith(texSource); 155 | } else { 156 | _element.parentNode.replaceChild(texSource, _element); 157 | } 158 | 159 | texSource.innerHTML = copyDelimiters.inline[0] + texSource.innerHTML + copyDelimiters.inline[1]; 160 | } 161 | } // Switch display math to display delimiters. 162 | 163 | 164 | var displays = fragment.querySelectorAll('.katex-display annotation'); 165 | 166 | for (var _i2 = 0; _i2 < displays.length; _i2++) { 167 | var _element2 = displays[_i2]; 168 | _element2.innerHTML = copyDelimiters.display[0] + _element2.innerHTML.substr(copyDelimiters.inline[0].length, _element2.innerHTML.length - copyDelimiters.inline[0].length - copyDelimiters.inline[1].length) + copyDelimiters.display[1]; 169 | } 170 | 171 | return fragment; 172 | }; 173 | /* harmony default export */ var katex2tex = (katexReplaceWithTex); 174 | // CONCATENATED MODULE: ./contrib/copy-tex/copy-tex.js 175 | // Global copy handler to modify behavior on .katex elements. 176 | 177 | document.addEventListener('copy', function (event) { 178 | var selection = window.getSelection(); 179 | 180 | if (selection.isCollapsed) { 181 | return; // default action OK if selection is empty 182 | } 183 | 184 | var fragment = selection.getRangeAt(0).cloneContents(); 185 | 186 | if (!fragment.querySelector('.katex-mathml')) { 187 | return; // default action OK if no .katex-mathml elements 188 | } // Preserve usual HTML copy/paste behavior. 189 | 190 | 191 | var html = []; 192 | 193 | for (var i = 0; i < fragment.childNodes.length; i++) { 194 | html.push(fragment.childNodes[i].outerHTML); 195 | } 196 | 197 | event.clipboardData.setData('text/html', html.join('')); // Rewrite plain-text version. 198 | 199 | event.clipboardData.setData('text/plain', katex2tex(fragment).textContent); // Prevent normal copy handling. 200 | 201 | event.preventDefault(); 202 | }); 203 | // CONCATENATED MODULE: ./contrib/copy-tex/copy-tex.webpack.js 204 | /** 205 | * This is the webpack entry point for KaTeX. As ECMAScript doesn't support 206 | * CSS modules natively, a separate entry point is used. 207 | */ 208 | 209 | 210 | 211 | /***/ }) 212 | /******/ ])["default"]; 213 | }); -------------------------------------------------------------------------------- /public/index.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 15 | 16 | TeXnique 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 |
45 | 46 | 57 | 90 | 91 |
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\(\text{\TeX nique}\)

93 |

\(\text{A \LaTeX \, Typesetting Game}\)

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107 | 108 |
109 | Hints: 110 |
    111 |
  • No \(\texttt{\$}\) signs needed
    • 112 |
  • All formulas are rendered in display style
    • 113 |
  • Use \( \verb \left \) and \( \verb \right \) to correctly size balanced delimiters like \( \verb ( \), 114 | \( \texttt \{ \), and \( \verb \lceil \)
    • 115 |
  • Prefer \( \verb \bmod \) and \( \verb \pmod \) to \( \verb \mod \)
    • 116 |
  • Use \( \verb \mathbf \), not \( \verb \textbf \) 117 |
  • Harder problems are worth more points
    • 118 |
  • Use Detexify to quickly look up unknown symbols 119 |
    • 120 |
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160 | 161 | 162 | 163 | 164 | Score:   165 | Time:   166 |
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Try to create the following formula:

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This is what your output looks like:

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Edit your code here:

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Toggle Shadow

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208 |
209 | 210 | 211 | -------------------------------------------------------------------------------- /public/assets/lib/katex/contrib/auto-render.js: -------------------------------------------------------------------------------- 1 | (function webpackUniversalModuleDefinition(root, factory) { 2 | if(typeof exports === 'object' && typeof module === 'object') 3 | module.exports = factory(require("katex")); 4 | else if(typeof define === 'function' && define.amd) 5 | define(["katex"], factory); 6 | else if(typeof exports === 'object') 7 | exports["renderMathInElement"] = factory(require("katex")); 8 | else 9 | root["renderMathInElement"] = factory(root["katex"]); 10 | })((typeof self !== 'undefined' ? self : this), function(__WEBPACK_EXTERNAL_MODULE__0__) { 11 | return /******/ (function(modules) { // webpackBootstrap 12 | /******/ // The module cache 13 | /******/ var installedModules = {}; 14 | /******/ 15 | /******/ // The require function 16 | /******/ function __webpack_require__(moduleId) { 17 | /******/ 18 | /******/ // Check if module is in cache 19 | /******/ if(installedModules[moduleId]) { 20 | /******/ return installedModules[moduleId].exports; 21 | /******/ } 22 | /******/ // Create a new module (and put it into the cache) 23 | /******/ var module = installedModules[moduleId] = { 24 | /******/ i: moduleId, 25 | /******/ l: false, 26 | /******/ exports: {} 27 | /******/ }; 28 | /******/ 29 | /******/ // Execute the module function 30 | /******/ modules[moduleId].call(module.exports, module, module.exports, __webpack_require__); 31 | /******/ 32 | /******/ // Flag the module as loaded 33 | /******/ module.l = true; 34 | /******/ 35 | /******/ // Return the exports of the module 36 | /******/ return module.exports; 37 | /******/ } 38 | /******/ 39 | /******/ 40 | /******/ // expose the modules object (__webpack_modules__) 41 | /******/ __webpack_require__.m = modules; 42 | /******/ 43 | /******/ // expose the module cache 44 | /******/ __webpack_require__.c = installedModules; 45 | /******/ 46 | /******/ // define getter function for harmony exports 47 | /******/ __webpack_require__.d = function(exports, name, getter) { 48 | /******/ if(!__webpack_require__.o(exports, name)) { 49 | /******/ Object.defineProperty(exports, name, { enumerable: true, get: getter }); 50 | /******/ } 51 | /******/ }; 52 | /******/ 53 | /******/ // define __esModule on exports 54 | /******/ __webpack_require__.r = function(exports) { 55 | /******/ if(typeof Symbol !== 'undefined' && Symbol.toStringTag) { 56 | /******/ Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' }); 57 | /******/ } 58 | /******/ Object.defineProperty(exports, '__esModule', { value: true }); 59 | /******/ }; 60 | /******/ 61 | /******/ // create a fake namespace object 62 | /******/ // mode & 1: value is a module id, require it 63 | /******/ // mode & 2: merge all properties of value into the ns 64 | /******/ // mode & 4: return value when already ns object 65 | /******/ // mode & 8|1: behave like require 66 | /******/ __webpack_require__.t = function(value, mode) { 67 | /******/ if(mode & 1) value = __webpack_require__(value); 68 | /******/ if(mode & 8) return value; 69 | /******/ if((mode & 4) && typeof value === 'object' && value && value.__esModule) return value; 70 | /******/ var ns = Object.create(null); 71 | /******/ __webpack_require__.r(ns); 72 | /******/ Object.defineProperty(ns, 'default', { enumerable: true, value: value }); 73 | /******/ if(mode & 2 && typeof value != 'string') for(var key in value) __webpack_require__.d(ns, key, function(key) { return value[key]; }.bind(null, key)); 74 | /******/ return ns; 75 | /******/ }; 76 | /******/ 77 | /******/ // getDefaultExport function for compatibility with non-harmony modules 78 | /******/ __webpack_require__.n = function(module) { 79 | /******/ var getter = module && module.__esModule ? 80 | /******/ function getDefault() { return module['default']; } : 81 | /******/ function getModuleExports() { return module; }; 82 | /******/ __webpack_require__.d(getter, 'a', getter); 83 | /******/ return getter; 84 | /******/ }; 85 | /******/ 86 | /******/ // Object.prototype.hasOwnProperty.call 87 | /******/ __webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); }; 88 | /******/ 89 | /******/ // __webpack_public_path__ 90 | /******/ __webpack_require__.p = ""; 91 | /******/ 92 | /******/ 93 | /******/ // Load entry module and return exports 94 | /******/ return __webpack_require__(__webpack_require__.s = 1); 95 | /******/ }) 96 | /************************************************************************/ 97 | /******/ ([ 98 | /* 0 */ 99 | /***/ (function(module, exports) { 100 | 101 | module.exports = __WEBPACK_EXTERNAL_MODULE__0__; 102 | 103 | /***/ }), 104 | /* 1 */ 105 | /***/ (function(module, __webpack_exports__, __webpack_require__) { 106 | 107 | "use strict"; 108 | __webpack_require__.r(__webpack_exports__); 109 | 110 | // EXTERNAL MODULE: external "katex" 111 | var external_katex_ = __webpack_require__(0); 112 | var external_katex_default = /*#__PURE__*/__webpack_require__.n(external_katex_); 113 | 114 | // CONCATENATED MODULE: ./contrib/auto-render/splitAtDelimiters.js 115 | /* eslint no-constant-condition:0 */ 116 | var findEndOfMath = function findEndOfMath(delimiter, text, startIndex) { 117 | // Adapted from 118 | // https://github.com/Khan/perseus/blob/master/src/perseus-markdown.jsx 119 | var index = startIndex; 120 | var braceLevel = 0; 121 | var delimLength = delimiter.length; 122 | 123 | while (index < text.length) { 124 | var character = text[index]; 125 | 126 | if (braceLevel <= 0 && text.slice(index, index + delimLength) === delimiter) { 127 | return index; 128 | } else if (character === "\\") { 129 | index++; 130 | } else if (character === "{") { 131 | braceLevel++; 132 | } else if (character === "}") { 133 | braceLevel--; 134 | } 135 | 136 | index++; 137 | } 138 | 139 | return -1; 140 | }; 141 | 142 | var splitAtDelimiters = function splitAtDelimiters(startData, leftDelim, rightDelim, display) { 143 | var finalData = []; 144 | 145 | for (var i = 0; i < startData.length; i++) { 146 | if (startData[i].type === "text") { 147 | var text = startData[i].data; 148 | var lookingForLeft = true; 149 | var currIndex = 0; 150 | var nextIndex = void 0; 151 | nextIndex = text.indexOf(leftDelim); 152 | 153 | if (nextIndex !== -1) { 154 | currIndex = nextIndex; 155 | finalData.push({ 156 | type: "text", 157 | data: text.slice(0, currIndex) 158 | }); 159 | lookingForLeft = false; 160 | } 161 | 162 | while (true) { 163 | if (lookingForLeft) { 164 | nextIndex = text.indexOf(leftDelim, currIndex); 165 | 166 | if (nextIndex === -1) { 167 | break; 168 | } 169 | 170 | finalData.push({ 171 | type: "text", 172 | data: text.slice(currIndex, nextIndex) 173 | }); 174 | currIndex = nextIndex; 175 | } else { 176 | nextIndex = findEndOfMath(rightDelim, text, currIndex + leftDelim.length); 177 | 178 | if (nextIndex === -1) { 179 | break; 180 | } 181 | 182 | finalData.push({ 183 | type: "math", 184 | data: text.slice(currIndex + leftDelim.length, nextIndex), 185 | rawData: text.slice(currIndex, nextIndex + rightDelim.length), 186 | display: display 187 | }); 188 | currIndex = nextIndex + rightDelim.length; 189 | } 190 | 191 | lookingForLeft = !lookingForLeft; 192 | } 193 | 194 | finalData.push({ 195 | type: "text", 196 | data: text.slice(currIndex) 197 | }); 198 | } else { 199 | finalData.push(startData[i]); 200 | } 201 | } 202 | 203 | return finalData; 204 | }; 205 | 206 | /* harmony default export */ var auto_render_splitAtDelimiters = (splitAtDelimiters); 207 | // CONCATENATED MODULE: ./contrib/auto-render/auto-render.js 208 | /* eslint no-console:0 */ 209 | 210 | 211 | 212 | var auto_render_splitWithDelimiters = function splitWithDelimiters(text, delimiters) { 213 | var data = [{ 214 | type: "text", 215 | data: text 216 | }]; 217 | 218 | for (var i = 0; i < delimiters.length; i++) { 219 | var delimiter = delimiters[i]; 220 | data = auto_render_splitAtDelimiters(data, delimiter.left, delimiter.right, delimiter.display || false); 221 | } 222 | 223 | return data; 224 | }; 225 | /* Note: optionsCopy is mutated by this method. If it is ever exposed in the 226 | * API, we should copy it before mutating. 227 | */ 228 | 229 | 230 | var auto_render_renderMathInText = function renderMathInText(text, optionsCopy) { 231 | var data = auto_render_splitWithDelimiters(text, optionsCopy.delimiters); 232 | var fragment = document.createDocumentFragment(); 233 | 234 | for (var i = 0; i < data.length; i++) { 235 | if (data[i].type === "text") { 236 | fragment.appendChild(document.createTextNode(data[i].data)); 237 | } else { 238 | var span = document.createElement("span"); 239 | var math = data[i].data; // Override any display mode defined in the settings with that 240 | // defined by the text itself 241 | 242 | optionsCopy.displayMode = data[i].display; 243 | 244 | try { 245 | if (optionsCopy.preProcess) { 246 | math = optionsCopy.preProcess(math); 247 | } 248 | 249 | external_katex_default.a.render(math, span, optionsCopy); 250 | } catch (e) { 251 | if (!(e instanceof external_katex_default.a.ParseError)) { 252 | throw e; 253 | } 254 | 255 | optionsCopy.errorCallback("KaTeX auto-render: Failed to parse `" + data[i].data + "` with ", e); 256 | fragment.appendChild(document.createTextNode(data[i].rawData)); 257 | continue; 258 | } 259 | 260 | fragment.appendChild(span); 261 | } 262 | } 263 | 264 | return fragment; 265 | }; 266 | 267 | var renderElem = function renderElem(elem, optionsCopy) { 268 | for (var i = 0; i < elem.childNodes.length; i++) { 269 | var childNode = elem.childNodes[i]; 270 | 271 | if (childNode.nodeType === 3) { 272 | // Text node 273 | var frag = auto_render_renderMathInText(childNode.textContent, optionsCopy); 274 | i += frag.childNodes.length - 1; 275 | elem.replaceChild(frag, childNode); 276 | } else if (childNode.nodeType === 1) { 277 | (function () { 278 | // Element node 279 | var className = ' ' + childNode.className + ' '; 280 | var shouldRender = optionsCopy.ignoredTags.indexOf(childNode.nodeName.toLowerCase()) === -1 && optionsCopy.ignoredClasses.every(function (x) { 281 | return className.indexOf(' ' + x + ' ') === -1; 282 | }); 283 | 284 | if (shouldRender) { 285 | renderElem(childNode, optionsCopy); 286 | } 287 | })(); 288 | } // Otherwise, it's something else, and ignore it. 289 | 290 | } 291 | }; 292 | 293 | var renderMathInElement = function renderMathInElement(elem, options) { 294 | if (!elem) { 295 | throw new Error("No element provided to render"); 296 | } 297 | 298 | var optionsCopy = {}; // Object.assign(optionsCopy, option) 299 | 300 | for (var option in options) { 301 | if (options.hasOwnProperty(option)) { 302 | optionsCopy[option] = options[option]; 303 | } 304 | } // default options 305 | 306 | 307 | optionsCopy.delimiters = optionsCopy.delimiters || [{ 308 | left: "$$", 309 | right: "$$", 310 | display: true 311 | }, { 312 | left: "\\(", 313 | right: "\\)", 314 | display: false 315 | }, // LaTeX uses $…$, but it ruins the display of normal `$` in text: 316 | // {left: "$", right: "$", display: false}, 317 | // \[…\] must come last in this array. Otherwise, renderMathInElement 318 | // will search for \[ before it searches for $$ or \( 319 | // That makes it susceptible to finding a \\[0.3em] row delimiter and 320 | // treating it as if it were the start of a KaTeX math zone. 321 | { 322 | left: "\\[", 323 | right: "\\]", 324 | display: true 325 | }]; 326 | optionsCopy.ignoredTags = optionsCopy.ignoredTags || ["script", "noscript", "style", "textarea", "pre", "code"]; 327 | optionsCopy.ignoredClasses = optionsCopy.ignoredClasses || []; 328 | optionsCopy.errorCallback = optionsCopy.errorCallback || console.error; // Enable sharing of global macros defined via `\gdef` between different 329 | // math elements within a single call to `renderMathInElement`. 330 | 331 | optionsCopy.macros = optionsCopy.macros || {}; 332 | renderElem(elem, optionsCopy); 333 | }; 334 | 335 | /* harmony default export */ var auto_render = __webpack_exports__["default"] = (renderMathInElement); 336 | 337 | /***/ }) 338 | /******/ ])["default"]; 339 | }); -------------------------------------------------------------------------------- /public/assets/js/index.js: -------------------------------------------------------------------------------- 1 | let TIMEOUT_SECONDS = 180; 2 | let TIMEOUT_STRING = "three minutes"; 3 | let secondsRemaining = TIMEOUT_SECONDS; 4 | 5 | let gameTimer; 6 | let oldVal; 7 | let problemNumber = 0; 8 | let problemPoints = 0; 9 | let currentScore = 0; 10 | let numCorrect = 0; 11 | let problemsOrder; 12 | let debug = false; 13 | let lastTarget = ''; 14 | let mobile = false; 15 | let showShadow = false; 16 | let skippedProblems = []; 17 | let showSkipped = false; 18 | 19 | function mobileCheck() { 20 | var check = false; 21 | (function(a){if(/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino/i.test(a)||/1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(a.substr(0,4))) check = true;})(navigator.userAgent||navigator.vendor||window.opera); 22 | return check; 23 | }; 24 | 25 | function shuffleArray(array) { 26 | for (let i = array.length - 1; i > 0; i--) { 27 | const j = Math.floor(Math.random() * (i + 1)); 28 | [array[i], array[j]] = [array[j], array[i]]; 29 | } 30 | } 31 | 32 | function displayLaTeXInBody() { 33 | renderMathInElement(document.body, { 34 | options: { 35 | throwOnError: false, 36 | display: false 37 | } 38 | }); 39 | } 40 | 41 | // A simple timer 42 | function displayTime(secs) { 43 | let minutes = Math.floor(secs / 60) % 60; 44 | let seconds = secs % 60; 45 | let displayText = minutes + ":" + (seconds < 10 ? "0" + seconds : seconds); 46 | $("#timer").text(displayText); 47 | } 48 | 49 | function displayInfiniteTime() { 50 | katex.render(`\\infty`, $("#timer")[0]); 51 | } 52 | 53 | function startTimer(onTimeoutFunc) { 54 | secondsRemaining = TIMEOUT_SECONDS; 55 | gameTimer = setInterval(function() { 56 | secondsRemaining--; 57 | displayTime(secondsRemaining); 58 | if (secondsRemaining == 0) { 59 | clearInterval(timer); 60 | onTimeoutFunc(); 61 | } 62 | }, 1000); 63 | } 64 | 65 | function toggleShowSkipped() { 66 | $("#skipped-problems").toggle(); 67 | showSkipped = !showSkipped; 68 | $("#show-skipped-button").text(showSkipped ? "Hide Skipped" : "Show Skipped"); 69 | } 70 | 71 | function showIntro() { 72 | $("#game-window").hide(); 73 | $("#ending-window").hide(); 74 | $("#intro-window").show(); 75 | $("#score-submission").show(); 76 | 77 | let introText = "This is a game to test your \\(\\LaTeX\\) skills.

" + 78 | " Type as many formulas as you can in " + TIMEOUT_STRING + " (timed game), or play an untimed game (zen mode)!"; 79 | $("#intro-text").html(introText); 80 | 81 | if (mobileCheck()) { 82 | $("#hint-list").prepend("
  • Consider switching to a desktop browser
    • ") 83 | mobile = true; 84 | } 85 | 86 | displayLaTeXInBody(); 87 | $("#container").show(); 88 | } 89 | 90 | function endGame() { 91 | clearTimeout(gameTimer); 92 | 93 | $("#intro-window").hide(); 94 | $("#game-window").hide(); 95 | $("#ending-window").show(); 96 | displayLaTeXInBody(); 97 | 98 | let problemsText = numCorrect + ((numCorrect == 1) ? " problem" : " problems"); 99 | let endingText = "You finished " + problemsText + " for a total score of " + currentScore; 100 | $("#ending-text").text(endingText); 101 | 102 | // Load initial leaderboard 103 | loadLeaderboard('today'); 104 | 105 | skippedProblems.forEach(idx => { 106 | let target = problems[problemsOrder[idx % problems.length]]; 107 | let targetId = 'skipTarget' + idx; 108 | let skippedProblemsHtml = ` 109 |

    ${target.title}

    110 |
    111 |
    112 |
    113 |
    114 |
    ${target.latex}
    115 |

    116 | `; 117 | $("#skipped-problems").append(skippedProblemsHtml); 118 | 119 | katex.render(target.latex, $("#" + targetId)[0], { 120 | throwOnError: false, 121 | displayMode: true 122 | }); 123 | }); 124 | displayLaTeXInBody(); 125 | 126 | $("#skipped-problems").hide() 127 | $("#show-skipped-button").text("Show Skipped"); 128 | showSkipped = false; 129 | if (skippedProblems.length > 0) { 130 | $("#show-skipped-message").show(); 131 | $("#show-skipped-button").show(); 132 | } else { 133 | $("#show-skipped-message").hide(); 134 | $("#show-skipped-button").hide(); 135 | } 136 | } 137 | 138 | 139 | function startGame(useTimer) { 140 | problemNumber = 0; 141 | currentScore = 0; 142 | numCorrect = 0; 143 | oldVal = ""; 144 | problemsOrder = [...Array(problems.length).keys()]; 145 | shuffleArray(problemsOrder); 146 | skippedProblems = []; 147 | 148 | $("#intro-window").hide(); 149 | $("#ending-window").hide(); 150 | $("#game-window").show(); 151 | $("#skipped-problems").html(""); 152 | $("#skipped-problems").hide(); 153 | 154 | displayLaTeXInBody(); 155 | 156 | $("#score").text(0); 157 | 158 | if (useTimer) { 159 | displayTime(TIMEOUT_SECONDS); 160 | 161 | // Reset and start the timer 162 | loadProblem(); 163 | startTimer(function() { 164 | endGame(); 165 | }); 166 | } else { 167 | displayInfiniteTime(); 168 | loadProblem(); 169 | } 170 | } 171 | 172 | function loadProblem() { 173 | // clear current work 174 | $('#out').empty(); 175 | $('#user-input').val(''); 176 | 177 | // reset styling 178 | $('#out').parent().removeClass("correct"); 179 | $('#user-input').prop("disabled", false); 180 | if (!mobile) { 181 | $('#user-input').focus(); 182 | } 183 | 184 | // load problem 185 | let target = problems[problemsOrder[problemNumber % problems.length]]; 186 | if (debug) { 187 | target = problems[problemNumber + 179]; 188 | } 189 | problemNumber += 1; 190 | 191 | // load problem text 192 | let problemText = "Problem " + problemNumber + ": " + target.title; 193 | $("#problem-title").text(problemText); 194 | problemPoints = Math.ceil(target.latex.length / 10.0); 195 | let pointsText = "(" + problemPoints + ((problemPoints == 1) ? " point)" : " points)"); 196 | $("#problem-points").text(pointsText); 197 | 198 | displayLaTeXInBody(); 199 | 200 | // load problem body 201 | katex.render(target.latex, $("#target")[0], { 202 | throwOnError: false, 203 | displayMode: true 204 | }); 205 | // load problem body 206 | katex.render(target.latex, $("#shadow-target")[0], { 207 | throwOnError: false, 208 | displayMode: true 209 | }); 210 | 211 | oldVal = ""; 212 | }; 213 | 214 | function normalize(input) { 215 | normalizations.forEach( 216 | rule => input = input.replace(rule["rule"], rule["replacement"]) 217 | ); 218 | return input; 219 | } 220 | 221 | function validateProblem() { 222 | let currentVal = normalize($("#user-input").val()); 223 | if (currentVal == oldVal) { 224 | return; // check to prevent multiple simultaneous triggers 225 | } 226 | 227 | oldVal = currentVal; 228 | // action to be performed on textarea changed 229 | katex.render(currentVal, $("#out")[0], { 230 | throwOnError: false, 231 | displayMode: true 232 | }); 233 | 234 | if (currentVal == '') { 235 | // Defensively return if the input is empty. 236 | return; 237 | } 238 | 239 | 240 | if ($("#target").width() != $("#out").width()) { 241 | // Return if the element widths are different. 242 | return; 243 | } 244 | 245 | html2canvas($('#target')[0], {}).then(function (targetCanvas) { 246 | $('#out').parent().removeClass("correct"); 247 | let width = targetCanvas.width; 248 | let height = targetCanvas.height; 249 | let targetData = targetCanvas.getContext("2d").getImageData(0, 0, width, height); 250 | let curTarget = $('#problem-title').text(); 251 | html2canvas($('#out')[0], {}).then(function (outCanvas) { 252 | if (outCanvas.width != width || outCanvas.height != height) { 253 | console.log("doesn't match"); 254 | return; 255 | } 256 | let outData = outCanvas.getContext("2d").getImageData(0, 0, width, height); 257 | let diff = pixelmatch(targetData.data, outData.data, undefined, width, height, {threshold: 0.1}); 258 | let result = ""; 259 | console.log("diff is " + diff) 260 | if (diff == 0) { 261 | if (lastTarget == curTarget) { 262 | return; 263 | } 264 | lastTarget = curTarget; 265 | currentScore += problemPoints; 266 | numCorrect += 1; 267 | 268 | // Styling changes 269 | $('#out').parent().addClass("correct"); 270 | $('#user-input').prop("disabled", true); 271 | $("#score").text(currentScore); 272 | 273 | // Load new problem 274 | setTimeout(loadProblem, 1500); 275 | } 276 | }); 277 | }); 278 | } 279 | 280 | // Helper function to escape HTML special characters 281 | function escapeHtml(text) { 282 | return text 283 | .replace(/&/g, "&") 284 | .replace(//g, ">") 286 | .replace(/"/g, """) 287 | .replace(/'/g, "'"); 288 | } 289 | 290 | // Leaderboard functions 291 | async function submitScore(name, score) { 292 | try { 293 | await db.collection('leaderboard').add({ 294 | name: name.trim(), 295 | score: score, 296 | timestamp: firebase.firestore.FieldValue.serverTimestamp() 297 | }); 298 | loadLeaderboard('today'); // Refresh leaderboard after submission 299 | } catch (error) { 300 | console.error("Error submitting score:", error); 301 | } 302 | } 303 | 304 | async function loadLeaderboard(timeRange) { 305 | const leaderboardList = $("#leaderboard-list"); 306 | leaderboardList.empty(); 307 | 308 | try { 309 | let query = db.collection('leaderboard'); 310 | 311 | // Add time constraints based on selected range 312 | const now = new Date(); 313 | if (timeRange === 'today') { 314 | const startOfDay = new Date(now.getFullYear(), now.getMonth(), now.getDate()); 315 | query = query.where('timestamp', '>=', startOfDay); 316 | } else if (timeRange === 'month') { 317 | const startOfMonth = new Date(now.getFullYear(), now.getMonth(), 1); 318 | query = query.where('timestamp', '>=', startOfMonth); 319 | } 320 | 321 | const snapshot = await query.orderBy('score', 'desc').limit(10).get(); 322 | 323 | if (snapshot.empty) { 324 | leaderboardList.append('

    No scores yet!

    '); 325 | return; 326 | } 327 | 328 | let rank = 1; 329 | snapshot.forEach((doc) => { 330 | const data = doc.data(); 331 | const scoreEntry = ` 332 |
    333 | #${rank} 334 | ${escapeHtml(data.name)} 335 | ${data.score} points 336 |
    337 | `; 338 | leaderboardList.append(scoreEntry); 339 | rank++; 340 | }); 341 | } catch (error) { 342 | console.error("Error loading leaderboard:", error); 343 | leaderboardList.append('

    Error loading leaderboard

    '); 344 | } 345 | } 346 | 347 | // Start by showing the intro. 348 | $(document).ready(function() { 349 | // Handlers 350 | $("#start-button-timed").click(function() { 351 | startGame(true); 352 | }); 353 | 354 | $("#start-button-untimed").click(function() { 355 | startGame(false); 356 | }); 357 | 358 | $("#reset-button-timed").click(function() { 359 | startGame(true); 360 | }); 361 | 362 | $("#reset-button-untimed").click(function() { 363 | startGame(false); 364 | }); 365 | 366 | $("#skip-button").click(function() { 367 | skippedProblems.push(problemNumber - 1); 368 | loadProblem(); 369 | }); 370 | 371 | $("#show-skipped-button").click(function() { 372 | toggleShowSkipped(); 373 | }) 374 | 375 | $("#end-game-button").click(function() { 376 | endGame(); 377 | }); 378 | 379 | $("#user-input").on("change keyup paste", function() { 380 | validateProblem() 381 | }); 382 | 383 | $("#shadow-checkbox").change(_ => { 384 | $("#shadow-target").toggle(); 385 | }); 386 | 387 | $("#l-shadow-checkbox").keydown(e => { 388 | if (e.which == 13 /* enter */) { 389 | $("#shadow-checkbox").prop("checked", !$("#shadow-checkbox").prop("checked")); 390 | $("#shadow-target").toggle(); 391 | } 392 | }); 393 | 394 | // Leaderboard handlers 395 | $("#submit-score").click(function() { 396 | const playerName = $("#player-name").val().trim(); 397 | if (playerName.length === 0) { 398 | alert("Please enter your name"); 399 | return; 400 | } 401 | if (playerName.length > 30) { 402 | alert("Name must be 30 characters or less"); 403 | return; 404 | } 405 | 406 | submitScore(playerName, currentScore); 407 | $("#score-submission").hide(); 408 | }); 409 | 410 | $("#today-scores, #month-scores, #all-time-scores").click(function() { 411 | const timeRange = $(this).attr('id').replace('-scores', ''); 412 | 413 | // Update active button 414 | $(".leaderboard-controls .latex-button").removeClass('active'); 415 | $(this).addClass('active'); 416 | 417 | loadLeaderboard(timeRange); 418 | }); 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