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@zelosleone
zelosleone authored Oct 29, 2024
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38 changes: 38 additions & 0 deletions index.html
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<!DOCTYPE html>
<html>
<head>
<title>I Ching</title>
<link rel="icon" href="favicon.ico" type="image/x-icon">
<link rel="stylesheet" href="style.css">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
</head>
<body>
<div class="header">
<h1>I CHING</h1>
<div class="subtitle">Consult the Book of Changes</div>
</div>

<div class="container">
<div class="oracle-card">
<div class="question-container">
<div style="margin-top: 1rem;">
<label style="display: flex; align-items: center; gap: 0.5rem; cursor: pointer;">
<input type="checkbox" id="unchangingOnly" style="cursor: pointer;">
<span>Show only unchanging hexagrams</span>
</label>
</div>
<textarea id="question" placeholder="Enter your question with a clear and focused mind..."></textarea>
</div>
<button onclick="castHexagram()" id="castButton">Cast Hexagram</button>
<div id="loading" class="loading" style="display: none;">
Consulting the oracle using true randomness...
</div>
<div id="error" class="error" style="display: none;"></div>
<div id="numbers" class="numbers"></div>
<div id="original" class="hexagram"></div>
<div id="changed" class="hexagram"></div>
</div>
</div>
<script src="script.js"></script>
</body>
</html>
196 changes: 196 additions & 0 deletions script.js
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// Hexagram names and URLs mapping
const hexagramData = {
'111111': { name: 'Hexagram 1: The Creative', url: 'https://www.no2do.com/hexagramme_en/777777.htm' },
'000000': { name: 'Hexagram 2: The Receptive', url: 'https://www.no2do.com/hexagramme_en/888888.htm' },
'100010': { name: 'Hexagram 3: Difficulty at the Beginning', url: 'https://www.no2do.com/hexagramme_en/788878.htm' },
'010001': { name: 'Hexagram 4: Youthful Folly', url: 'https://www.no2do.com/hexagramme_en/878887.htm' },
'111010': { name: 'Hexagram 5: Waiting', url: 'https://www.no2do.com/hexagramme_en/777878.htm' },
'010111': { name: 'Hexagram 6: Conflict', url: 'https://www.no2do.com/hexagramme_en/878777.htm' },
'010000': { name: 'Hexagram 7: The Army', url: 'https://www.no2do.com/hexagramme_en/878888.htm' },
'000010': { name: 'Hexagram 8: Holding Together', url: 'https://www.no2do.com/hexagramme_en/888878.htm' },
'111011': { name: 'Hexagram 9: Small Taming', url: 'https://www.no2do.com/hexagramme_en/777877.htm' },
'110111': { name: 'Hexagram 10: Treading', url: 'https://www.no2do.com/hexagramme_en/778777.htm' },
'111000': { name: 'Hexagram 11: Peace', url: 'https://www.no2do.com/hexagramme_en/777888.htm' },
'000111': { name: 'Hexagram 12: Standstill', url: 'https://www.no2do.com/hexagramme_en/888777.htm' },
'101111': { name: 'Hexagram 13: Fellowship', url: 'https://www.no2do.com/hexagramme_en/787777.htm' },
'111101': { name: 'Hexagram 14: Great Possession', url: 'https://www.no2do.com/hexagramme_en/777787.htm' },
'001000': { name: 'Hexagram 15: Modesty', url: 'https://www.no2do.com/hexagramme_en/887888.htm' },
'000100': { name: 'Hexagram 16: Enthusiasm', url: 'https://www.no2do.com/hexagramme_en/888788.htm' },
'100110': { name: 'Hexagram 17: Following', url: 'https://www.no2do.com/hexagramme_en/788778.htm' },
'011001': { name: 'Hexagram 18: Work on the Decayed', url: 'https://www.no2do.com/hexagramme_en/877887.htm' },
'110000': { name: 'Hexagram 19: Approach', url: 'https://www.no2do.com/hexagramme_en/778888.htm' },
'000011': { name: 'Hexagram 20: Contemplation', url: 'https://www.no2do.com/hexagramme_en/888877.htm' },
'100101': { name: 'Hexagram 21: Biting Through', url: 'https://www.no2do.com/hexagramme_en/788787.htm' },
'101001': { name: 'Hexagram 22: Grace', url: 'https://www.no2do.com/hexagramme_en/787887.htm' },
'000001': { name: 'Hexagram 23: Splitting Apart', url: 'https://www.no2do.com/hexagramme_en/888887.htm' },
'100000': { name: 'Hexagram 24: Return', url: 'https://www.no2do.com/hexagramme_en/788888.htm' },
'100111': { name: 'Hexagram 25: Innocence', url: 'https://www.no2do.com/hexagramme_en/788777.htm' },
'111001': { name: 'Hexagram 26: Great Taming', url: 'https://www.no2do.com/hexagramme_en/777887.htm' },
'100001': { name: 'Hexagram 27: Nourishment', url: 'https://www.no2do.com/hexagramme_en/788887.htm' },
'011110': { name: 'Hexagram 28: Great Preponderance', url: 'https://www.no2do.com/hexagramme_en/877778.htm' },
'010010': { name: 'Hexagram 29: The Abysmal', url: 'https://www.no2do.com/hexagramme_en/878878.htm' },
'101101': { name: 'Hexagram 30: The Clinging', url: 'https://www.no2do.com/hexagramme_en/787787.htm' },
'001110': { name: 'Hexagram 31: Influence', url: 'https://www.no2do.com/hexagramme_en/887778.htm' },
'011100': { name: 'Hexagram 32: Duration', url: 'https://www.no2do.com/hexagramme_en/877788.htm' },
'001111': { name: 'Hexagram 33: Retreat', url: 'https://www.no2do.com/hexagramme_en/887777.htm' },
'111100': { name: 'Hexagram 34: Great Power', url: 'https://www.no2do.com/hexagramme_en/777788.htm' },
'000101': { name: 'Hexagram 35: Progress', url: 'https://www.no2do.com/hexagramme_en/888787.htm' },
'101000': { name: 'Hexagram 36: Darkening of the Light', url: 'https://www.no2do.com/hexagramme_en/787888.htm' },
'101011': { name: 'Hexagram 37: The Family', url: 'https://www.no2do.com/hexagramme_en/787877.htm' },
'110101': { name: 'Hexagram 38: Opposition', url: 'https://www.no2do.com/hexagramme_en/778787.htm' },
'001010': { name: 'Hexagram 39: Obstruction', url: 'https://www.no2do.com/hexagramme_en/887878.htm' },
'010100': { name: 'Hexagram 40: Deliverance', url: 'https://www.no2do.com/hexagramme_en/878788.htm' },
'110001': { name: 'Hexagram 41: Decrease', url: 'https://www.no2do.com/hexagramme_en/778887.htm' },
'100011': { name: 'Hexagram 42: Increase', url: 'https://www.no2do.com/hexagramme_en/788877.htm' },
'111110': { name: 'Hexagram 43: Breakthrough', url: 'https://www.no2do.com/hexagramme_en/777778.htm' },
'011111': { name: 'Hexagram 44: Coming to Meet', url: 'https://www.no2do.com/hexagramme_en/877777.htm' },
'000110': { name: 'Hexagram 45: Gathering Together', url: 'https://www.no2do.com/hexagramme_en/888778.htm' },
'011000': { name: 'Hexagram 46: Pushing Upward', url: 'https://www.no2do.com/hexagramme_en/877888.htm' },
'010110': { name: 'Hexagram 47: Oppression', url: 'https://www.no2do.com/hexagramme_en/878778.htm' },
'011010': { name: 'Hexagram 48: The Well', url: 'https://www.no2do.com/hexagramme_en/877878.htm' },
'101110': { name: 'Hexagram 49: Revolution', url: 'https://www.no2do.com/hexagramme_en/787778.htm' },
'011101': { name: 'Hexagram 50: The Cauldron', url: 'https://www.no2do.com/hexagramme_en/877787.htm' },
'100100': { name: 'Hexagram 51: The Arousing', url: 'https://www.no2do.com/hexagramme_en/788788.htm' },
'001001': { name: 'Hexagram 52: Keeping Still', url: 'https://www.no2do.com/hexagramme_en/887887.htm' },
'001011': { name: 'Hexagram 53: Development', url: 'https://www.no2do.com/hexagramme_en/887877.htm' },
'110100': { name: 'Hexagram 54: The Marrying Maiden', url: 'https://www.no2do.com/hexagramme_en/778788.htm' },
'101100': { name: 'Hexagram 55: Abundance', url: 'https://www.no2do.com/hexagramme_en/787788.htm' },
'001101': { name: 'Hexagram 56: The Wanderer', url: 'https://www.no2do.com/hexagramme_en/887787.htm' },
'011011': { name: 'Hexagram 57: The Gentle', url: 'https://www.no2do.com/hexagramme_en/877877.htm' },
'110110': { name: 'Hexagram 58: The Joyous', url: 'https://www.no2do.com/hexagramme_en/778778.htm' },
'010011': { name: 'Hexagram 59: Dispersion', url: 'https://www.no2do.com/hexagramme_en/878877.htm' },
'110010': { name: 'Hexagram 60: Limitation', url: 'https://www.no2do.com/hexagramme_en/778878.htm' },
'110011': { name: 'Hexagram 61: Inner Truth', url: 'https://www.no2do.com/hexagramme_en/778877.htm' },
'001100': { name: 'Hexagram 62: Small Preponderance', url: 'https://www.no2do.com/hexagramme_en/887788.htm' },
'101010': { name: 'Hexagram 63: After Completion', url: 'https://www.no2do.com/hexagramme_en/787878.htm' },
'010101': { name: 'Hexagram 64: Before Completion', url: 'https://www.no2do.com/hexagramme_en/878787.htm' }
};
async function getRandomNumbers() {
const unchangingOnly = document.getElementById('unchangingOnly').checked;

try {
const response = await fetch(
`https://www.random.org/integers/?num=6&min=${unchangingOnly ? 7 : 6}&max=${unchangingOnly ? 8 : 9}&col=1&base=10&format=plain&rnd=new`,
{
method: 'GET',
headers: {
'Accept': 'text/plain'
}
}
);

if (!response.ok) {
throw new Error('Failed to get true random numbers from Random.org');
}

const text = await response.text();
const numbers = text.trim().split('\n').map(n => parseInt(n));

if (numbers.length !== 6) {
throw new Error('Did not receive the correct number of random numbers');
}

return numbers;
} catch (error) {
throw new Error('Cannot proceed without true randomness from Random.org. Please try again later.');
}
}

function numberToLine(num, lineNumber) {
const isYang = (num === 7 || num === 9);
const isChanging = (num === 6 || num === 9);
return {
value: num,
changing: isChanging,
lineNumber: lineNumber,
display: `<div class="line${isChanging ? ' changing' : ''}">${isYang ?
'<div class="yang"></div>' :
'<div class="yin"></div><div class="yin"></div>'}</div>`,
binary: isYang ? '1' : '0'
};
}

function getHexagramLink(binaryKey) {
const hexagram = hexagramData[binaryKey];
if (!hexagram) return 'Hexagram not found';
return `<a href="${hexagram.url}" target="_blank">${hexagram.name}</a>`;
}

async function castHexagram() {
const question = document.getElementById('question').value.trim();
if (!question) {
alert('Please enter your question first.');
return;
}

const button = document.getElementById('castButton');
const loading = document.getElementById('loading');
const error = document.getElementById('error');
const numbers = document.getElementById('numbers');
const original = document.getElementById('original');
const changed = document.getElementById('changed');

numbers.innerHTML = '';
original.innerHTML = '';
changed.innerHTML = '';
error.style.display = 'none';

button.disabled = true;
loading.style.display = 'block';

try {
const randomNumbers = await getRandomNumbers();

// First number corresponds to bottom line (line 1)
const lines = randomNumbers.map((num, index) => numberToLine(num, index + 1));
const changingLines = lines.filter(l => l.changing);
const originalKey = convertToBinaryKey(lines);

numbers.innerHTML = `Numbers cast: ${randomNumbers.join(', ')}`;

// Display lines from top to bottom (6 to 1)
const displayLines = [...lines].reverse();

original.innerHTML =
`<div class="hexagram-title">Original Hexagram</div>` +
displayLines.map(l => l.display).join('') +
`<div class="hexagram-meaning">${getHexagramLink(originalKey)}</div>`;

if (changingLines.length > 0) {
original.innerHTML += `<div class="changing-lines-text">
Changing lines: ${changingLines.map(l => `Line ${l.lineNumber} (${l.value})`).sort((a, b) =>
parseInt(a.split(' ')[1]) - parseInt(b.split(' ')[1])).join(', ')}
</div>`;

const changedLines = lines.map(l => ({
...l,
binary: l.changing ? (l.binary === '1' ? '0' : '1') : l.binary
}));
const changedKey = convertToBinaryKey(changedLines);

// Display transformed hexagram
changed.innerHTML =
`<div class="hexagram-title">Transformed Hexagram</div>` +
displayLines.map(l => {
const newNum = l.changing ? (l.value === 9 ? 8 : 7) : l.value;
return numberToLine(newNum, l.lineNumber).display;
}).join('') +
`<div class="hexagram-meaning">${getHexagramLink(changedKey)}</div>`;
} else {
original.innerHTML += `<div class="unchanging-note">
This is a stable hexagram with no changing lines.
</div>`;
}
} catch (err) {
error.textContent = err.message;
error.style.display = 'block';
} finally {
button.disabled = false;
loading.style.display = 'none';
}
}

function convertToBinaryKey(lines) {
// The binary key should be read from bottom to top
return lines.map(line => line.binary).join('');
}
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