import { Color } from '../math/Color';

import { Vector3 } from '../math/Vector3';

/**

* @author mrdoob / http://mrdoob.com/

* @author alteredq / http://alteredqualia.com/

*/

function Face3( a, b, c, normal, color, materialIndex ) {

this.a = a;

this.b = b;

this.c = c;

this.normal = (normal && normal.isVector3) ? normal : new Vector3();

this.vertexNormals = Array.isArray( normal ) ? normal : [];

this.color = (color && color.isColor) ? color : new Color();

this.vertexColors = Array.isArray( color ) ? color : [];

this.materialIndex = materialIndex !== undefined ? materialIndex : 0;

}

Face3.prototype = {

constructor: Face3,

clone: function () {

return new this.constructor().copy( this );

},

copy: function ( source ) {

this.a = source.a;

this.b = source.b;

this.c = source.c;

this.normal.copy( source.normal );

this.color.copy( source.color );

this.materialIndex = source.materialIndex;

for ( var i = 0, il = source.vertexNormals.length; i < il; i ++ ) {

this.vertexNormals[ i ] = source.vertexNormals[ i ].clone();

}

for ( var i = 0, il = source.vertexColors.length; i < il; i ++ ) {

this.vertexColors[ i ] = source.vertexColors[ i ].clone();

}

return this;

}

};

export { Face3 };