Rename index.html to script.js
Browse files- index.html +0 -19
- script.js +89 -0
index.html
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<!doctype html>
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<html>
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<head>
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<meta charset="utf-8" />
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<meta name="viewport" content="width=device-width" />
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<title>My static Space</title>
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<link rel="stylesheet" href="style.css" />
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</head>
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<body>
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<div class="card">
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<h1>Welcome to your static Space!</h1>
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<p>You can modify this app directly by editing <i>index.html</i> in the Files and versions tab.</p>
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<p>
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Also don't forget to check the
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<a href="https://huggingface.co/docs/hub/spaces" target="_blank">Spaces documentation</a>.
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</p>
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</div>
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</body>
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</html>
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script.js
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@@ -0,0 +1,89 @@
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document.addEventListener('DOMContentLoaded', () => {
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// DOM elements
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const canvas = document.getElementById('unscramble-canvas');
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const ctx = canvas.getContext('2d');
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const loadingMessage = document.getElementById('loading-message');
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// Prevent right-click on the canvas
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canvas.oncontextmenu = (e) => {
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e.preventDefault();
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return false;
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};
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// --- Main Unscrambling Logic ---
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async function unscramble() {
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try {
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// 1. Fetch the map data and the scrambled image simultaneously
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const [mapResponse, scrambledImage] = await Promise.all([
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fetch('assets/map.json'),
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loadImage('assets/scrambled.png')
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]);
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if (!mapResponse.ok) {
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throw new Error(`Failed to load map.json: ${mapResponse.statusText}`);
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}
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const mapData = await mapResponse.json();
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const { gridSize, scrambleMap, width, height } = mapData;
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// Hide the loading message and set canvas dimensions
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loadingMessage.style.display = 'none';
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canvas.width = width;
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canvas.height = height;
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// 2. Calculate the tile dimensions
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const tileW = canvas.width / gridSize;
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const tileH = canvas.height / gridSize;
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// 3. Create an "inverse map" for easy unscrambling.
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// The scrambleMap tells us: new_position -> original_position
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// We need to know where the tile for an original_position is located now.
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const inverseMap = new Array(scrambleMap.length);
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for (let newIndex = 0; newIndex < scrambleMap.length; newIndex++) {
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const originalIndex = scrambleMap[newIndex];
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inverseMap[originalIndex] = newIndex;
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}
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// 4. Loop through each TILE of the FINAL image and draw it on the canvas
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for (let originalIndex = 0; originalIndex < scrambleMap.length; originalIndex++) {
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// Find where this tile is located in the SCRAMBLED image
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const scrambledIndex = inverseMap[originalIndex];
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// Calculate source (from scrambled.png) and destination (on canvas) coordinates
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const sourceX = (scrambledIndex % gridSize) * tileW;
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const sourceY = Math.floor(scrambledIndex / gridSize) * tileH;
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const destX = (originalIndex % gridSize) * tileW;
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const destY = Math.floor(originalIndex / gridSize) * tileH;
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// Copy the rectangular tile from the hidden scrambled image to the visible canvas
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ctx.drawImage(
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scrambledImage, // The source image
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sourceX, sourceY, // Top-left corner of the source tile
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tileW, tileH, // Dimensions of the source tile
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destX, destY, // Top-left corner of the destination on the canvas
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tileW, tileH // Dimensions of the destination tile
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);
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}
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} catch (error) {
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console.error("Unscrambling failed:", error);
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loadingMessage.textContent = `Error: ${error.message}`;
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loadingMessage.style.color = 'red';
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}
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}
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// Helper function to load an image and return a promise
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function loadImage(src) {
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return new Promise((resolve, reject) => {
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const img = new Image();
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img.onload = () => resolve(img);
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img.onerror = (err) => reject(new Error(`Failed to load image: ${src}`));
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img.src = src;
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});
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}
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// Run the main function
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unscramble();
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});
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