import {
  createEmpty,
  extendFlatCoordinates,
  forEachCorner,
  intersects,
  intersectsSegment
} from "./chunk-CKDBVGKM.js";

// node_modules/ol/geom/flat/segments.js
function forEach(flatCoordinates, offset, end, stride, callback) {
  let ret;
  offset += stride;
  for (; offset < end; offset += stride) {
    ret = callback(
      flatCoordinates.slice(offset - stride, offset),
      flatCoordinates.slice(offset, offset + stride)
    );
    if (ret) {
      return ret;
    }
  }
  return false;
}

// node_modules/ol/geom/flat/contains.js
function linearRingContainsExtent(flatCoordinates, offset, end, stride, extent) {
  const outside = forEachCorner(
    extent,
    /**
     * @param {import("../../coordinate.js").Coordinate} coordinate Coordinate.
     * @return {boolean} Contains (x, y).
     */
    function(coordinate) {
      return !linearRingContainsXY(
        flatCoordinates,
        offset,
        end,
        stride,
        coordinate[0],
        coordinate[1]
      );
    }
  );
  return !outside;
}
function linearRingContainsXY(flatCoordinates, offset, end, stride, x, y) {
  let wn = 0;
  let x1 = flatCoordinates[end - stride];
  let y1 = flatCoordinates[end - stride + 1];
  for (; offset < end; offset += stride) {
    const x2 = flatCoordinates[offset];
    const y2 = flatCoordinates[offset + 1];
    if (y1 <= y) {
      if (y2 > y && (x2 - x1) * (y - y1) - (x - x1) * (y2 - y1) > 0) {
        wn++;
      }
    } else if (y2 <= y && (x2 - x1) * (y - y1) - (x - x1) * (y2 - y1) < 0) {
      wn--;
    }
    x1 = x2;
    y1 = y2;
  }
  return wn !== 0;
}
function linearRingsContainsXY(flatCoordinates, offset, ends, stride, x, y) {
  if (ends.length === 0) {
    return false;
  }
  if (!linearRingContainsXY(flatCoordinates, offset, ends[0], stride, x, y)) {
    return false;
  }
  for (let i = 1, ii = ends.length; i < ii; ++i) {
    if (linearRingContainsXY(flatCoordinates, ends[i - 1], ends[i], stride, x, y)) {
      return false;
    }
  }
  return true;
}
function linearRingssContainsXY(flatCoordinates, offset, endss, stride, x, y) {
  if (endss.length === 0) {
    return false;
  }
  for (let i = 0, ii = endss.length; i < ii; ++i) {
    const ends = endss[i];
    if (linearRingsContainsXY(flatCoordinates, offset, ends, stride, x, y)) {
      return true;
    }
    offset = ends[ends.length - 1];
  }
  return false;
}

// node_modules/ol/geom/flat/intersectsextent.js
function intersectsLineString(flatCoordinates, offset, end, stride, extent, coordinatesExtent) {
  coordinatesExtent = coordinatesExtent ?? extendFlatCoordinates(createEmpty(), flatCoordinates, offset, end, stride);
  if (!intersects(extent, coordinatesExtent)) {
    return false;
  }
  if (coordinatesExtent[0] >= extent[0] && coordinatesExtent[2] <= extent[2] || coordinatesExtent[1] >= extent[1] && coordinatesExtent[3] <= extent[3]) {
    return true;
  }
  return forEach(
    flatCoordinates,
    offset,
    end,
    stride,
    /**
     * @param {import("../../coordinate.js").Coordinate} point1 Start point.
     * @param {import("../../coordinate.js").Coordinate} point2 End point.
     * @return {boolean} `true` if the segment and the extent intersect,
     *     `false` otherwise.
     */
    function(point1, point2) {
      return intersectsSegment(extent, point1, point2);
    }
  );
}
function intersectsLineStringArray(flatCoordinates, offset, ends, stride, extent) {
  for (let i = 0, ii = ends.length; i < ii; ++i) {
    if (intersectsLineString(flatCoordinates, offset, ends[i], stride, extent)) {
      return true;
    }
    offset = ends[i];
  }
  return false;
}
function intersectsLinearRing(flatCoordinates, offset, end, stride, extent) {
  if (intersectsLineString(flatCoordinates, offset, end, stride, extent)) {
    return true;
  }
  if (linearRingContainsXY(
    flatCoordinates,
    offset,
    end,
    stride,
    extent[0],
    extent[1]
  )) {
    return true;
  }
  if (linearRingContainsXY(
    flatCoordinates,
    offset,
    end,
    stride,
    extent[0],
    extent[3]
  )) {
    return true;
  }
  if (linearRingContainsXY(
    flatCoordinates,
    offset,
    end,
    stride,
    extent[2],
    extent[1]
  )) {
    return true;
  }
  if (linearRingContainsXY(
    flatCoordinates,
    offset,
    end,
    stride,
    extent[2],
    extent[3]
  )) {
    return true;
  }
  return false;
}
function intersectsLinearRingArray(flatCoordinates, offset, ends, stride, extent) {
  if (!intersectsLinearRing(flatCoordinates, offset, ends[0], stride, extent)) {
    return false;
  }
  if (ends.length === 1) {
    return true;
  }
  for (let i = 1, ii = ends.length; i < ii; ++i) {
    if (linearRingContainsExtent(
      flatCoordinates,
      ends[i - 1],
      ends[i],
      stride,
      extent
    )) {
      if (!intersectsLineString(
        flatCoordinates,
        ends[i - 1],
        ends[i],
        stride,
        extent
      )) {
        return false;
      }
    }
  }
  return true;
}
function intersectsLinearRingMultiArray(flatCoordinates, offset, endss, stride, extent) {
  for (let i = 0, ii = endss.length; i < ii; ++i) {
    const ends = endss[i];
    if (intersectsLinearRingArray(flatCoordinates, offset, ends, stride, extent)) {
      return true;
    }
    offset = ends[ends.length - 1];
  }
  return false;
}

export {
  linearRingsContainsXY,
  linearRingssContainsXY,
  forEach,
  intersectsLineString,
  intersectsLineStringArray,
  intersectsLinearRing,
  intersectsLinearRingArray,
  intersectsLinearRingMultiArray
};
//# sourceMappingURL=chunk-YUSNUQO6.js.map