@thi.ng/text-canvas/utils.js

Text based canvas, drawing, plotting, tables with arbitrary formatting (incl. ANSI/HTML)

const charCode = (x, format) => (typeof x === "string" ? x.charCodeAt(0) : x) | format << 16;
const intersectRect = (a, b) => {
  const x1 = Math.max(a.x1, b.x1);
  const y1 = Math.max(a.y1, b.y1);
  const x2 = Math.min(a.x2, b.x2);
  const y2 = Math.min(a.y2, b.y2);
  return { x1, y1, x2, y2, w: Math.max(x2 - x1, 0), h: Math.max(y2 - y1, 0) };
};
const __axis = (a, b, c) => (a < b ? a - b : a > b + c ? a - b - c : 0) ** 2;
const intersectRectCircle = (x, y, w, h, cx, cy, r) => __axis(cx, x, w) + __axis(cy, y, h) <= r * r;
export {
  charCode,
  intersectRect,
  intersectRectCircle
};