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/*** module: node_modules/absol/src/Math/BezierCurve.js ***/
"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;

var _Vec = _interopRequireDefault(require("./Vec2.js"));


/**
 *
 * @param {Vec2} startPoint
 * @param {Vec2} ctrlPoint1
 * @param {Vec2} ctrlPoint2
 * @param {Vec2} endPoint
 * @constructor
 */
function BezierCurve(startPoint, ctrlPoint1, ctrlPoint2, endPoint) {
  this.startPoint = startPoint;
  this.ctrlPoint1 = ctrlPoint1;
  this.ctrlPoint2 = ctrlPoint2;
  this.endPoint = endPoint;
}
/**
 *
 * @param {number} t
 */


BezierCurve.prototype.pointAt = function (t) {
  var s1 = this.ctrlPoint1.sub(this.startPoint).mult(t).add(this.startPoint);
  var s2 = this.ctrlPoint2.sub(this.ctrlPoint1).mult(t).add(this.ctrlPoint1);
  var s3 = this.endPoint.sub(this.ctrlPoint2).mult(t).add(this.ctrlPoint2);
  var s4 = s2.sub(s1).mult(t).add(s1);
  var s5 = s3.sub(s2).mult(t).add(s2);
  return s5.sub(s4).mult(t).add(s4);
};
/**
 *
 * @param {Vec2} point
 * @returns {number}
 */


BezierCurve.prototype.nearestBzParamToPoint = function (point) {
  var low = 0;
  var high = 1;
  var ml;
  var mh;
  var delta = 0.00001;

  while (high - low > delta) {
    ml = low + (high - low) / 3;
    mh = high - (high - low) / 3;

    if (this.pointAt(ml).dist(point) < this.pointAt(mh).dist(point)) {
      high = mh;
    } else {
      low = ml;
    }
  }

  return (low + high) / 2;
};
/**
 *
 * @param {Vec2} point
 * @returns {*}
 */


BezierCurve.prototype.distanceToPoint = function (point) {
  return this.pointAt(this.nearestBzParamToPoint(point)).dist(point);
};
/**
 *
 * @param {BezierCurve} otherCurve
 * @returns {{current: number, other: number}}
 */


BezierCurve.prototype.nearestBParamToOtherBzCurve = function (otherCurve) {
  var res = {
    current: 0,
    other: 0
  };
  var delta = 0.00001;
  var low = 0;
  var high = 1;
  var ml;
  var mh;
  var currentPointL, currentPointH;

  while (high - low > delta) {
    ml = low + (high - low) / 3;
    mh = high - (high - low) / 3;
    currentPointL = this.pointAt(ml);
    currentPointH = this.pointAt(mh);

    if (otherCurve.distanceToPoint(currentPointL) < otherCurve.distanceToPoint(currentPointH)) {
      high = mh;
    } else {
      low = ml;
    }
  }

  res.current = (low + high) / 2;
  currentPointL = this.pointAt(res.current);
  res.other = otherCurve.nearestBzParamToPoint(currentPointL);
  return res;
};
/**
 * @returns {BezierCurve}
 */


BezierCurve.prototype.copy = function () {
  return new BezierCurve(this.startPoint.copy(), this.ctrlPoint1.copy(), this.ctrlPoint2.copy(), this.endPoint.copy());
};

var _default = BezierCurve;
exports.default = _default;