New project: party stage

party-stage/src/utils.js

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+import * as THREE from 'three';
+import { state } from './state.js';
+
+// --- Utility: Random Color (seeded) ---
+export function getRandomColor() {
+    const hue = seededRandom();
+    const saturation = 0.6 + seededRandom() * 0.4; 
+    const lightness = 0.3 + seededRandom() * 0.4; 
+    return new THREE.Color().setHSL(hue, saturation, lightness).getHex();
+}
+
+/**
+ * Converts degrees to radians.
+ * @param {number} degrees
+ * @returns {number}
+ */
+export function degToRad(degrees) {
+    return degrees * (Math.PI / 180);
+}
+
+// --- Seedable Random Number Generator (Mulberry32) ---
+export function seededRandom() {
+    let t = state.seed += 0x6D2B79F5;
+    t = Math.imul(t ^ t >>> 15, t | 1);
+    t ^= t + Math.imul(t ^ t >>> 7, t | 61);
+    return ((t ^ t >>> 14) >>> 0) / 4294967296;
+}
+
+// --- Helper function to format seconds into MM:SS ---
+export function formatTime(seconds) {
+    if (isNaN(seconds) || seconds === Infinity || seconds < 0) return '--:--';
+    const minutes = Math.floor(seconds / 60);
+    const remainingSeconds = Math.floor(seconds % 60);
+    const paddedMinutes = String(minutes).padStart(2, '0');
+    const paddedSeconds = String(remainingSeconds).padStart(2, '0');
+    return `${paddedMinutes}:${paddedSeconds}`;
+}