text: /**
   * @author sunag / http://www.sunag.com.br/
   */
  
  import { TempNode } from '../core/TempNode.js';
  import { NodeUtils } from '../core/NodeUtils.js';
  
  var inputs = NodeUtils.elements;
  
  function JoinNode( x, y, z, w ) {
  
  	TempNode.call( this, 'f' );
  
  	this.x = x;
  	this.y = y;
  	this.z = z;
  	this.w = w;
  
  }
  
  JoinNode.prototype = Object.create( TempNode.prototype );
  JoinNode.prototype.constructor = JoinNode;
  JoinNode.prototype.nodeType = "Join";
  
  JoinNode.prototype.getNumElements = function () {
  
  	var i = inputs.length;
  
  	while ( i -- ) {
  
  		if ( this[ inputs[ i ] ] !== undefined ) {
  
  			++ i;
  
  			break;
  
  		}
  
  	}
  
  	return Math.max( i, 2 );
  
  };
  
  JoinNode.prototype.getType = function ( builder ) {
  
  	return builder.getTypeFromLength( this.getNumElements() );
  
  };
  
  JoinNode.prototype.generate = function ( builder, output ) {
  
  	var type = this.getType( builder ),
  		length = this.getNumElements(),
  		outputs = [];
  
  	for ( var i = 0; i < length; i ++ ) {
  
  		var elm = this[ inputs[ i ] ];
  
  		outputs.push( elm ? elm.build( builder, 'f' ) : '0.0' );
  
  	}
  
  	var code = ( length > 1 ? builder.getConstructorFromLength( length ) : '' ) + '( ' + outputs.join( ', ' ) + ' )';
  
  	return builder.format( code, type, output );
  
  };
  
  JoinNode.prototype.copy = function ( source ) {
  
  	TempNode.prototype.copy.call( this, source );
  
  	for ( var prop in source.inputs ) {
  
  		this[ prop ] = source.inputs[ prop ];
  
  	}
  
  	return this;
  
  };
  
  JoinNode.prototype.toJSON = function ( meta ) {
  
  	var data = this.getJSONNode( meta );
  
  	if ( ! data ) {
  
  		data = this.createJSONNode( meta );
  
  		data.inputs = {};
  
  		var length = this.getNumElements();
  
  		for ( var i = 0; i < length; i ++ ) {
  
  			var elm = this[ inputs[ i ] ];
  
  			if ( elm ) {
  
  				data.inputs[ inputs[ i ] ] = elm.toJSON( meta ).uuid;
  
  			}
  
  		}
  
  
  	}
  
  	return data;
  
  };
  
  export { JoinNode };
  