@rickosborne/hexgrid/qrs-intersection.cjs

Rick Osborne's collection of hexagonal grid-related code.

"use strict";
var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __name = (target, value) => __defProp(target, "name", { value, configurable: true });
var __export = (target, all) => {
  for (var name in all)
    __defProp(target, name, { get: all[name], enumerable: true });
};
var __copyProps = (to, from, except, desc) => {
  if (from && typeof from === "object" || typeof from === "function") {
    for (let key of __getOwnPropNames(from))
      if (!__hasOwnProp.call(to, key) && key !== except)
        __defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
  }
  return to;
};
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);
var qrs_intersection_exports = {};
__export(qrs_intersection_exports, {
  qrsIntersection: () => qrsIntersection
});
module.exports = __toCommonJS(qrs_intersection_exports);
const qrsIntersection = /* @__PURE__ */ __name((buildFn, center1, radius1, center2, radius2 = radius1) => {
  const points = [];
  const qMin = Math.max(center1.q - radius1, center2.q - radius2);
  const qMax = Math.min(center1.q + radius1, center2.q + radius2);
  const rMin = Math.max(center1.r - radius1, center2.r - radius2);
  const rMax = Math.min(center1.r + radius1, center2.r + radius2);
  const s1 = -center1.q - center1.r;
  const s2 = -center2.q - center2.r;
  const sMin = Math.max(s1 - radius1, s2 - radius2);
  const sMax = Math.min(s1 + radius1, s2 + radius2);
  for (let q = qMin; q <= qMax; q++) {
    const ra = Math.max(rMin, -q - sMax);
    const rb = Math.min(rMax, -q - sMin);
    for (let r = ra; r <= rb; r++) {
      points.push(buildFn(q, r));
    }
  }
  return points;
}, "qrsIntersection");
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