package jcgp.population;

import java.util.Iterator;

import jcgp.CGP.Parameters;

public class Population implements Iterable<Chromosome> {
	
	private Chromosome[] population;
	
	public Population() {
		population = new Chromosome[Parameters.getPopulationSize()];
		for (int c = 0; c < population.length; c++) {
			population[c] = new Chromosome(Parameters.getInputs(),
										   Parameters.getRows(),
										   Parameters.getColumns(),
										   Parameters.getOutputs());
		}
	}

	@Override
	public Iterator<Chromosome> iterator() {
		return new Iterator<Chromosome>() {
			
			private int index = 0;

			@Override
			public boolean hasNext() {
				if (index < population.length) {
					return true;
				} else {
					return false;
				}
			}

			@Override
			public Chromosome next() {
				Chromosome next = population[index];
				index++;
				return next;
			}

			@Override
			public void remove() {
				// not allowed
				// since this would shift everything back one position, increment index
				index++;
			}
			
		};
	}
}