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web3d
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/**
 * @author timothypratley / https://github.com/timothypratley
 * @author Mugen87 / https://github.com/Mugen87
 */

import { Geometry } from '../core/Geometry.js';
import { PolyhedronBufferGeometry } from './PolyhedronGeometry.js';

// IcosahedronGeometry

function IcosahedronGeometry( radius, detail ) {

	Geometry.call( this );

	this.type = 'IcosahedronGeometry';

	this.parameters = {
		radius: radius,
		detail: detail
	};

	this.fromBufferGeometry( new IcosahedronBufferGeometry( radius, detail ) );
	this.mergeVertices();

}

IcosahedronGeometry.prototype = Object.create( Geometry.prototype );
IcosahedronGeometry.prototype.constructor = IcosahedronGeometry;

// IcosahedronBufferGeometry

function IcosahedronBufferGeometry( radius, detail ) {

	var t = ( 1 + Math.sqrt( 5 ) ) / 2;

	var vertices = [
		- 1, t, 0, 	1, t, 0, 	- 1, - t, 0, 	1, - t, 0,
		 0, - 1, t, 	0, 1, t,	0, - 1, - t, 	0, 1, - t,
		 t, 0, - 1, 	t, 0, 1, 	- t, 0, - 1, 	- t, 0, 1
	];

	var indices = [
		 0, 11, 5, 	0, 5, 1, 	0, 1, 7, 	0, 7, 10, 	0, 10, 11,
		 1, 5, 9, 	5, 11, 4,	11, 10, 2,	10, 7, 6,	7, 1, 8,
		 3, 9, 4, 	3, 4, 2,	3, 2, 6,	3, 6, 8,	3, 8, 9,
		 4, 9, 5, 	2, 4, 11,	6, 2, 10,	8, 6, 7,	9, 8, 1
	];

	PolyhedronBufferGeometry.call( this, vertices, indices, radius, detail );

	this.type = 'IcosahedronBufferGeometry';

	this.parameters = {
		radius: radius,
		detail: detail
	};

}

IcosahedronBufferGeometry.prototype = Object.create( PolyhedronBufferGeometry.prototype );
IcosahedronBufferGeometry.prototype.constructor = IcosahedronBufferGeometry;


export { IcosahedronGeometry, IcosahedronBufferGeometry };