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/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package darwin.util.math.composits;

import java.util.*;

import darwin.util.math.base.vector.Vector;

/**
 *
 * @author daniel
 */
public class Path> implements Iterable {

    private final List positions = new ArrayList<>();

    public void addPathElement(E position) {
        if (!positions.contains(position)) {
            positions.add(position);
        }
    }

    public int size() {
        return positions.size();
    }

    public Iterator> getLineSegmentIterator() {
        return new Iterator>() {
            Iterator iter = positions.iterator();
            E prev, next = iter.next();

            @Override
            public boolean hasNext() {
                return iter.hasNext();
            }

            @Override
            public LineSegment next() {
                prev = next;
                next = iter.next();
                return new LineSegment(prev, next);
            }

            @Override
            public void remove() {
                throw new UnsupportedOperationException("Not supported yet.");
            }
        };
    }

    public Iterable> getLineSegmentIterable() {
        return new Iterable>() {
            @Override
            public Iterator> iterator() {
                return getLineSegmentIterator();
            }
        };
    }

    public LineSegment getClosingSegment() {
        return new LineSegment<>(positions.get(positions.size() - 1), positions.get(0));
    }

    @Override
    public Iterator iterator() {
        return positions.iterator();
    }
}