/**
* @author mrdoob / http://mrdoob.com/
* based on http://papervision3d.googlecode.com/svn/trunk/as3/trunk/src/org/papervision3d/objects/primitives/Plane.as
*/
export class PlaneBufferGeometry {
   // THREE.PlaneBufferGeometry = function(width, height, widthSegments, heightSegments) {
   //    THREE.BufferGeometry.call(this);
   //    this.type = 'PlaneBufferGeometry';
   //    this.parameters = {
   //       width: width,
   //       height: height,
   //       widthSegments: widthSegments,
   //       heightSegments: heightSegments
   //    };
   //    var width_half = width / 2;
   //    var height_half = height / 2;
   //    var gridX = Math.floor(widthSegments) || 1;
   //    var gridY = Math.floor(heightSegments) || 1;
   //    var gridX1 = gridX + 1;
   //    var gridY1 = gridY + 1;
   //    var segment_width = width / gridX;
   //    var segment_height = height / gridY;
   //    var vertices = new Float32Array(gridX1 * gridY1 * 3);
   //    var normals = new Float32Array(gridX1 * gridY1 * 3);
   //    var uvs = new Float32Array(gridX1 * gridY1 * 2);
   //    var offset = 0;
   //    var offset2 = 0;
   //    for (var iy = 0; iy < gridY1; iy++) {
   //       var y = iy * segment_height - height_half;
   //       for (var ix = 0; ix < gridX1; ix++) {
   //          var x = ix * segment_width - width_half;
   //          vertices[offset] = x;
   //          vertices[offset + 1] = - y;
   //          normals[offset + 2] = 1;
   //          uvs[offset2] = ix / gridX;
   //          uvs[offset2 + 1] = 1 - (iy / gridY);
   //          offset += 3;
   //          offset2 += 2;
   //       }
   //    }
   //    offset = 0;
   //    var indices = new ((vertices.length / 3) > 65535 ? Uint32Array : Uint16Array)(gridX * gridY * 6);
   //    for (var iy = 0; iy < gridY; iy++) {
   //       for (var ix = 0; ix < gridX; ix++) {
   //          var a = ix + gridX1 * iy;
   //          var b = ix + gridX1 * (iy + 1);
   //          var c = (ix + 1) + gridX1 * (iy + 1);
   //          var d = (ix + 1) + gridX1 * iy;
   //          indices[offset] = a;
   //          indices[offset + 1] = b;
   //          indices[offset + 2] = d;
   //          indices[offset + 3] = b;
   //          indices[offset + 4] = c;
   //          indices[offset + 5] = d;
   //          offset += 6;
   //       }
   //    }
   //    this.setIndex(new THREE.BufferAttribute(indices, 1));
   //    this.addAttribute('position', new THREE.BufferAttribute(vertices, 3));
   //    this.addAttribute('normal', new THREE.BufferAttribute(normals, 3));
   //    this.addAttribute('uv', new THREE.BufferAttribute(uvs, 2));
   // };
   // THREE.PlaneBufferGeometry.prototype = Object.create(THREE.BufferGeometry.prototype);
   // THREE.PlaneBufferGeometry.prototype.constructor = THREE.PlaneBufferGeometry;
}