import { TempNode } from '../core/TempNode.js';

var vertexDict = [ 'color', 'color2' ],
	fragmentDict = [ 'vColor', 'vColor2' ];

function ColorsNode( index ) {

	TempNode.call( this, 'v4', { shared: false } );

	this.index = index || 0;

}

ColorsNode.prototype = Object.create( TempNode.prototype );
ColorsNode.prototype.constructor = ColorsNode;
ColorsNode.prototype.nodeType = 'Colors';

ColorsNode.prototype.generate = function ( builder, output ) {

	builder.requires.color[ this.index ] = true;

	var result = builder.isShader( 'vertex' ) ? vertexDict[ this.index ] : fragmentDict[ this.index ];

	return builder.format( result, this.getType( builder ), output );

};

ColorsNode.prototype.copy = function ( source ) {

	TempNode.prototype.copy.call( this, source );

	this.index = source.index;

	return this;

};

ColorsNode.prototype.toJSON = function ( meta ) {

	var data = this.getJSONNode( meta );

	if ( ! data ) {

		data = this.createJSONNode( meta );

		data.index = this.index;

	}

	return data;

};

export { ColorsNode };
