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Added a small mental arithmatic game
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This commit is contained in:
Leon Mika 2026-01-15 22:51:48 +11:00
parent ca67aadac0
commit 70a782d0e4
6 changed files with 268 additions and 0 deletions
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1
site/index.html
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<li><a href="/scorecard-4p/">Generic Scorecard - 4 Players</a></li>
<li><a href="/mahjong/">Mahjong Scorecard</a></li>
<li><a href="/finska/">Finska Scorecard</a></li>
<li><a href="/mental-arithmatic/">Mental Arithmatic Game</a></li>
<li><a href="/neon-snake/">Neon Snake</a>: vibe-coded by Google Gemini</li>
</ul>
</main>

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site/mental-arithmatic/index.html Normal file
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Mental Arithmatic - Tools</title>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/@picocss/pico@2/css/pico.min.css">
<link rel="stylesheet" href="./style.css">
<script src="./scripts/main.js" type="module"></script>
</head>
<body>
<div id="welcome-card" class="container" data-controller="welcome"
data-action="endGame@window->welcome#gameEnded">
<header>
<hgroup>
<h1>Mental Arithmatic</h1>
<p>A simple mental arithmetic game</p>
</hgroup>
<main>
<button data-action="click->welcome#startGame">Start Game</button>
</main>
</header>
</div>
<div id="game-card" class="container game-card hidden" data-controller="game"
data-action="startGame@window->game#start">
<header>
<span data-game-target="clock">1:00</span>
<span data-game-target="score">0</span>
</header>
<main>
<div class="question">
<div data-game-target="problem"></div>
<div class="answer" data-game-target="indicators">
<span class="indicator right">✔︎</span>
<span class="indicator wrong">❌</span>
<input type="number" data-game-target="answer" value="0" data-action="keydown.enter->game#submitAnswer">
</div>
</div>
</main>
</div>
</body>
</html>

104
site/mental-arithmatic/scripts/game.js Normal file
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import { Controller } from "https://unpkg.com/@hotwired/stimulus/dist/stimulus.js";
export class GameController extends Controller {
static targets = [
"clock",
"score",
"problem",
"indicators",
"answer",
];
start() {
this.startGame();
this.element.classList.remove('hidden');
}
submitAnswer(ev) {
ev.preventDefault();
this._checkAnswer();
}
startGame() {
this._clock = 120;
this._score = 0;
this._generateProblem();
this._startClock();
this._updateClock();
}
_startClock() {
this._clockInterval = window.setInterval(() => {
if (this._clock <= 0) {
this._gameOver();
return;
}
this._clock -= 1;
this._updateClock();
}, 1000);
}
_gameOver() {
window.clearInterval(this._clockInterval);
this.element.classList.add('hidden');
window.dispatchEvent(new CustomEvent("endGame"));
}
_generateProblem() {
const num1 = Math.floor(Math.random() * 99) + 1;
const num2 = Math.floor(Math.random() * 99) + 1;
this._problem = [num1, num2];
this._answer = num1 + num2;
this.indicatorsTarget.classList.remove('right', 'wrong');
this.problemTarget.innerHTML = '';
for (let i = 0; i < this._problem.length; i++) {
const div = document.createElement('div');
if (i === this._problem.length - 1) {
div.textContent = '+ ' + this._problem[i];
} else {
div.textContent = this._problem[i];
}
this.problemTarget.appendChild(div);
}
this.answerTarget.disabled = false;
this.answerTarget.value = "";
this.answerTarget.focus();
}
_checkAnswer() {
let isRight = parseInt(this.answerTarget.value) === this._answer;
this.answerTarget.disabled = true;
let delay = 500;
if (isRight) {
this._score += 1;
this.indicatorsTarget.classList.add('right');
} else {
this.indicatorsTarget.classList.add('wrong');
this.answerTarget.value = this._answer;
delay = 800;
}
this.scoreTarget.textContent = this._score;
window.setTimeout(() => { this._generateProblem(); }, delay);
}
_updateClock() {
let m = Math.floor(this._clock / 60);
let s = this._clock % 60;
this.clockTarget.textContent = `${m}:${s < 10 ? '0' : ''}${s}`;
}
}

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site/mental-arithmatic/scripts/main.js Normal file
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import { Application } from "https://unpkg.com/@hotwired/stimulus/dist/stimulus.js";
import { WelcomeController } from "./welcome.js"
import { GameController } from "./game.js"
window.Stimulus = Application.start();
window.Stimulus.register('welcome', WelcomeController);
window.Stimulus.register('game', GameController);

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site/mental-arithmatic/scripts/welcome.js Normal file
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import { Controller } from "https://unpkg.com/@hotwired/stimulus/dist/stimulus.js";
export class WelcomeController extends Controller {
startGame(ev) {
ev.preventDefault();
this.element.classList.add('hidden');
window.dispatchEvent(new CustomEvent("startGame"));
}
gameEnded(ev) {
this.element.classList.remove('hidden');
}
}

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site/mental-arithmatic/style.css Normal file
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.hidden {
display: none !important;
}
body {
min-height: 100dvh;
--pico-form-element-disabled-opacity: 1.0;
}
.game-card {
display: flex;
flex-direction: column;
min-height: 80dvh;
}
.game-card header,
.game-card footer {
display: flex;
justify-content: space-between;
font-size: 2em;
margin-block: 12px;
margin-inline: 20px;
}
.game-card main {
flex-grow: 1;
flex-shrink: 1;
display: flex;
align-items: center;
}
.game-card .question {
margin: auto;
width: 60vw;
text-align: right;
font-size: 3em;
}
.game-card .answer {
border-block: 2px solid black;
padding-block: 2px;
position: relative;
}
.game-card .answer.right {
border-color: green;
color: green;
}
.game-card .answer.wrong {
border-color: red;
color: red;
}
.game-card .answer .indicator {
display: none;
position: absolute;
top: 0;
bottom: 0;
left: 0;
}
.game-card .answer.right .indicator.right {
display: block;
}
.game-card .answer.wrong .indicator.wrong {
display: block;
}
.game-card .question input {
border-inline: none;
border-radius: 0;
box-shadow: none;
border: none;
margin: 0;
padding: 0;
text-align: right;
font-size: 1em;
height: 1em;
}
.game-card .question input:focus {
border-none: none;
}
.game-card .answer.right input {
color: green;
}
.game-card .answer.wrong input {
color: red;
}