NEON SURVIVORS v1.1 — full-featured bullet-heaven survivor game
Vanilla JS + Canvas, zero dependencies, offline-first PWA. Gameplay: - 11 weapons x8 levels + 11 evolutions (chest-based), incl. timed mines - 13 passives, crit system with directional hit-sparks & hit-stop - 10 characters w/ unique mods + unlock conditions, gold cosmetic skins - 3 biomes (Neon Graveyard / Frozen Hollow / Magma Rift) each with own spawn tables, boss plans and music flavor; Endless mode + surges; 4 difficulty grades; breakable crystal-lamp props - Elite random affixes (Swift/Sturdy/Volatile), 4 bosses, win flow - Achievements (23) w/ gold rewards, run history, daily seeded challenge Tech: - Cinematic canvas main-menu scene, game-feel FX suite (trails, muzzle, status tints, low-HP pulse), viewport culling + particle pooling - WebAudio synth SFX + generative per-biome soundtrack - Gamepad support, remappable keys, touch joystick, fullscreen - i18n VI/EN, localStorage saves w/ export-import codes - Cloudflare Workers leaderboard scaffold (KV) w/ signed submits - Headless integrity test-suite (node test/integrity.js)
This commit is contained in:
neon-survivors-dev
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// Generates PWA icons without external deps: neon diamond on dark bg.
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'use strict';
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const zlib = require('zlib');
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const fs = require('fs');
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const path = require('path');
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function crc32(buf) {
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let table = crc32.table;
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if (!table) {
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table = crc32.table = new Uint32Array(256);
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for (let n = 0; n < 256; n++) {
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let c = n;
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for (let k = 0; k < 8; k++) c = c & 1 ? 0xEDB88320 ^ (c >>> 1) : c >>> 1;
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table[n] = c >>> 0;
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}
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}
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let c = 0xFFFFFFFF;
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for (let i = 0; i < buf.length; i++) c = table[(c ^ buf[i]) & 0xFF] ^ (c >>> 8);
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return (c ^ 0xFFFFFFFF) >>> 0;
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}
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function chunk(type, data) {
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const len = Buffer.alloc(4);
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len.writeUInt32BE(data.length);
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const t = Buffer.from(type, 'ascii');
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const crc = Buffer.alloc(4);
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crc.writeUInt32BE(crc32(Buffer.concat([t, data])));
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return Buffer.concat([len, t, data, crc]);
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}
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function png(w, h, rgba) {
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const stride = w * 4;
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const raw = Buffer.alloc((stride + 1) * h);
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for (let y = 0; y < h; y++) {
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raw[y * (stride + 1)] = 0;
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rgba.copy(raw, y * (stride + 1) + 1, y * stride, (y + 1) * stride);
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}
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const ihdr = Buffer.alloc(13);
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ihdr.writeUInt32BE(w, 0); ihdr.writeUInt32BE(h, 4);
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ihdr[8] = 8; ihdr[9] = 6;
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const sig = Buffer.from([0x89, 0x50, 0x4E, 0x47, 0x0D, 0x0A, 0x1A, 0x0A]);
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return Buffer.concat([
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sig,
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chunk('IHDR', ihdr),
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chunk('IDAT', zlib.deflateSync(raw, { level: 9 })),
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chunk('IEND', Buffer.alloc(0))
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]);
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}
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function lerp(a, b, t) { return a + (b - a) * t; }
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function makeIcon(size) {
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const px = Buffer.alloc(size * size * 4);
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const cx = size / 2, cy = size / 2;
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const maxD = Math.hypot(cx, cy);
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const diaR = size * 0.34;
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for (let y = 0; y < size; y++) {
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for (let x = 0; x < size; x++) {
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const i = (y * size + x) * 4;
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const dx = x - cx, dy = y - cy;
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const d = Math.hypot(dx, dy) / maxD;
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// background: vertical dark gradient
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let r = lerp(10, 5, y / size);
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let g = lerp(10, 5, y / size);
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let b = lerp(31, 12, y / size);
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// soft purple glow ring
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const glow = Math.max(0, 1 - d * 2.2) ** 2;
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r += 124 * glow * 0.35; g += 92 * glow * 0.35; b += 255 * glow * 0.4;
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// neon diamond
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const ad = Math.abs(dx) + Math.abs(dy);
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if (ad < diaR) {
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const t = ad / diaR;
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// gradient edge cyan -> center violet -> white core
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if (t > 0.82) { r = 224; g = 250; b = 255; } // rim highlight
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else if (t > 0.55) { r = 0; g = 229; b = 255; } // cyan edge
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else if (t > 0.25) { r = 124; g = 92; b = 255; } // violet body
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else { r = 233; g = 213; b = 255; } // white core
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// subtle scanline shading
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if (((x + y) >> 3) % 2 === 0 && t <= 0.82) { r *= 0.92; g *= 0.92; b *= 0.95; }
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}
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px[i] = Math.min(255, r | 0); px[i + 1] = Math.min(255, g | 0);
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px[i + 2] = Math.min(255, b | 0); px[i + 3] = 255;
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}
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}
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return png(size, size, px);
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}
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const outDir = path.join(__dirname, '..', 'icons');
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if (!fs.existsSync(outDir)) fs.mkdirSync(outDir);
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for (const s of [192, 512]) {
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const f = path.join(outDir, `icon-${s}.png`);
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fs.writeFileSync(f, makeIcon(s));
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console.log('wrote', f, fs.statSync(f).size, 'bytes');
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}
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@@ -0,0 +1,49 @@
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// dev tool: scan for calls to members/functions that are never defined
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'use strict';
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const fs = require('fs');
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const files = fs.readdirSync('js').filter(f => f.endsWith('.js'));
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let all = '';
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for (const f of files) all += fs.readFileSync('js/' + f, 'utf8') + '\n';
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const defs = new Set();
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for (const m of all.matchAll(/(?:^|\n)[ \t]*(?:async\s+)?([A-Za-z_$][\w$]*)\s*\([^()]*\)\s*\{/g)) defs.add(m[1]);
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for (const m of all.matchAll(/\bfunction\s+([A-Za-z_$][\w$]*)/g)) defs.add(m[1]);
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for (const m of all.matchAll(/(?:const|let|var)\s+([A-Za-z_$][\w$]*)\s*=/g)) defs.add(m[1]);
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const allow = new Set([
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'push','pop','shift','unshift','splice','slice','concat','join','map','filter','forEach',
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'reduce','find','findIndex','some','every','includes','indexOf','sort','fill','keys',
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'values','entries','from','isArray','assign','create','freeze','getOwnPropertyNames',
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'setItem','getItem','removeItem','clear','log','warn','error','now','floor','ceil','round',
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'abs','min','max','sqrt','pow','sin','cos','tan','atan','atan2','random','hypot','sign','exp',
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'add','has','delete','get','set',
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'translate','rotate','scale','save','restore','beginPath','closePath','moveTo','lineTo','arc',
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'arcTo','quadraticCurveTo','bezierCurveTo','rect','fill','stroke','clip','fillText','strokeText',
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'measureText','drawImage','createLinearGradient','createRadialGradient','createPattern','fillRect',
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'strokeRect','clearRect','setTransform','resetTransform','ellipse',
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'play','pause','resume','connect','start','stop','setValueAtTime','linearRampToValueAtTime',
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'exponentialRampToValueAtTime','createGain','createOscillator','createBuffer','createBufferSource',
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'createBiquadFilter',
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'addEventListener','removeEventListener','preventDefault','stopPropagation','appendChild',
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'removeChild','remove','querySelector','querySelectorAll','getElementById','createElement',
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'toggle','contains','setAttribute','getAttribute','insertBefore','closest','matches',
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'test','exec','replace','split','trim','toLowerCase','toUpperCase','charAt','charCodeAt',
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'padStart','padEnd','repeat','match','matchAll','toString','toFixed','stringify','parse',
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'requestAnimationFrame','setTimeout','setInterval','clearTimeout','clearInterval','fetch',
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'then','catch','finally','bind','call','apply'
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]);
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let bad = 0;
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for (const m of all.matchAll(/\b(UI|Sys|R|Snd|Store|GAME)\.([A-Za-z_$][\w$]*)\s*\(/g)) {
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const meth = m[2];
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if (!allow.has(meth) && !defs.has(meth)) { console.log('MISSING:', m[1] + '.' + meth); bad++; }
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}
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console.log(bad === 0 ? 'No missing member calls OK' : bad + ' issues');
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for (const f of ['render.js', 'systems.js', 'ui.js', 'audio.js', 'save.js']) {
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const src = fs.readFileSync('js/' + f, 'utf8');
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for (const m of src.matchAll(/this\.(_?[A-Za-z_$][\w$]*)\s*\(/g)) {
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if (!defs.has(m[1])) console.log('MISSING this.' + m[1] + ' in ' + f);
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}
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}
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console.log('this-method scan done');
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