Initial commit: Shelem card game

Full-stack multiplayer Shelem (Iranian trick-taking card game) with Socket.IO, JWT auth, bot players, joker mode, and mobile-friendly UI. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-05-08 16:17:37 +00:00
commit 8e8478e45b
12 changed files with 3869 additions and 0 deletions
@@ -0,0 +1,111 @@
+'use strict';
+// Generates PNG icons with a Joker card motif on dark green background.
+const fs   = require('fs');
+const path = require('path');
+const zlib = require('zlib');
+
+const outDir = path.join(__dirname, 'public', 'icons');
+if (!fs.existsSync(outDir)) fs.mkdirSync(outDir, { recursive: true });
+
+function writePNG(filePath, size) {
+  const channels = 4;
+  const row = size * channels;
+  const raw = Buffer.alloc(size * row);
+
+  // Background: dark forest green #133025
+  const bgR = 0x13, bgG = 0x30, bgB = 0x25;
+  // Gold color for Joker diamond: #f5c518
+  const gR = 0xf5, gG = 0xc5, gB = 0x18;
+
+  const cx = size / 2, cy = size / 2;
+  const dh = size * 0.35; // half-height of diamond
+  const dw = size * 0.28; // half-width
+
+  for (let y = 0; y < size; y++) {
+    for (let x = 0; x < size; x++) {
+      const px = (y * size + x) * channels;
+      const nx = x + 0.5, ny = y + 0.5;
+
+      // Rounded corners
+      const cr = size * 0.2;
+      const inCorner =
+        (nx < cr && ny < cr && Math.hypot(nx - cr, ny - cr) > cr) ||
+        (nx > size - cr && ny < cr && Math.hypot(nx - (size - cr), ny - cr) > cr) ||
+        (nx < cr && ny > size - cr && Math.hypot(nx - cr, ny - (size - cr)) > cr) ||
+        (nx > size - cr && ny > size - cr && Math.hypot(nx - (size - cr), ny - (size - cr)) > cr);
+      if (inCorner) { raw[px + 3] = 0; continue; }
+
+      // Draw a diamond / rhombus shape (Joker card symbol)
+      const dx = Math.abs(nx - cx) / dw;
+      const dy = Math.abs(ny - cy) / dh;
+      const inDiamond = dx + dy <= 1;
+
+      if (inDiamond) {
+        raw[px]     = gR;
+        raw[px + 1] = gG;
+        raw[px + 2] = gB;
+        raw[px + 3] = 255;
+      } else {
+        raw[px]     = bgR;
+        raw[px + 1] = bgG;
+        raw[px + 2] = bgB;
+        raw[px + 3] = 255;
+      }
+    }
+  }
+
+  const chunks = [];
+  chunks.push(Buffer.from([137, 80, 78, 71, 13, 10, 26, 10]));
+
+  function crc32(buf) {
+    let c = 0xffffffff;
+    const table = crc32.table || (crc32.table = (() => {
+      const t = new Uint32Array(256);
+      for (let i = 0; i < 256; i++) {
+        let v = i;
+        for (let k = 0; k < 8; k++) v = v & 1 ? 0xedb88320 ^ (v >>> 1) : v >>> 1;
+        t[i] = v;
+      }
+      return t;
+    })());
+    for (let i = 0; i < buf.length; i++) c = table[(c ^ buf[i]) & 0xff] ^ (c >>> 8);
+    return (c ^ 0xffffffff) >>> 0;
+  }
+
+  function chunk(type, data) {
+    const len = Buffer.alloc(4); len.writeUInt32BE(data.length);
+    const tp  = Buffer.from(type);
+    const crc = Buffer.alloc(4);
+    crc.writeUInt32BE(crc32(Buffer.concat([tp, data])));
+    return Buffer.concat([len, tp, data, crc]);
+  }
+
+  const ihdr = Buffer.alloc(13);
+  ihdr.writeUInt32BE(size, 0); ihdr.writeUInt32BE(size, 4);
+  ihdr[8] = 8; ihdr[9] = 6;
+  chunks.push(chunk('IHDR', ihdr));
+
+  const filtered = Buffer.alloc(size * (row + 1));
+  for (let y = 0; y < size; y++) {
+    filtered[y * (row + 1)] = 0;
+    raw.copy(filtered, y * (row + 1) + 1, y * row, (y + 1) * row);
+  }
+  chunks.push(chunk('IDAT', zlib.deflateSync(filtered)));
+  chunks.push(chunk('IEND', Buffer.alloc(0)));
+
+  fs.writeFileSync(filePath, Buffer.concat(chunks));
+  console.log(`${path.basename(filePath)} written (${size}×${size})`);
+}
+
+writePNG(path.join(outDir, 'icon-192.png'), 192);
+writePNG(path.join(outDir, 'icon-512.png'), 512);
+
+// SVG icon (scalable, used as favicon)
+const svg = `<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100">
+  <rect width="100" height="100" rx="20" fill="#133025"/>
+  <polygon points="50,10 80,50 50,90 20,50" fill="#f5c518"/>
+  <text x="50" y="56" font-size="22" text-anchor="middle" fill="#133025" font-family="serif" font-weight="bold">J</text>
+</svg>`;
+fs.writeFileSync(path.join(outDir, 'icon.svg'), svg);
+console.log('icon.svg written');
+console.log('Icons generated.');