19 lines
678 B
JavaScript
19 lines
678 B
JavaScript
// Desk-level helpers shared by the paper panels.
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export function hash(str) {
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let h = 2166136261;
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for (let i = 0; i < str.length; i++) h = Math.imul(h ^ str.charCodeAt(i), 16777619);
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return h >>> 0;
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}
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// Give a paper a stable slight rotation derived from its id.
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export function tilt(el, id, amp = 0.8) {
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const r = ((hash(id) % 1000) / 1000 - 0.5) * 2 * amp;
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el.style.setProperty("--rot", `${r.toFixed(2)}deg`);
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}
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export const $ = (root, sel) => root.querySelector(sel);
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// Escape text for use inside innerHTML templates.
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export const esc = (s) => String(s).replace(/[&<>"']/g, (c) => ({ "&": "&", "<": "<", ">": ">", '"': """, "'": "'" })[c]);
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