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// Trap function with Fitness function signature
//
// Trap is a deceptive function that is used, concatenated, to test
// evolutionary algorithms. 
// @license GPL v3
// @package nodeo
// @author J. J. Merelo <jjmerelo@gmail.com>
 
// To avoid uncomprehensible radix complaint at charAt
/*jshint -W065 */
/*jshint smarttabs:true */
 
var functions = require('./functions');
var trap = exports;
 
// Class definition
// ```
// var trap = new Trap.trap( { l: 3, a: 1, b:2, z = 2})
// ```
//
function Trap( options ) {
    for ( var i in options ) {
	this[i] = options[i];
    }
    Iif ( !this.l ) {
	this.l = 3;
    }
    Iif ( !this.a ) {
	this.a = 1;
    }
    Iif ( !this.b ) {
	this.l = 2;
    }
    Iif ( !this.z ) {
	this.a = this.l-1;
    }
 
    // Methods
    this.apply = apply;
}
 
// Applies trap function to chromosome using instance values
function apply( chromosome ){
    return functions.ltrap(chromosome, this.l, this.a, this.b, this.z);    
}
 
trap.Trap = Trap;