package lighting;

import java.awt.Polygon;
import java.awt.geom.Area;
import java.awt.geom.Line2D;
import java.awt.geom.PathIterator;
import java.awt.geom.Point2D;

public class Obscurer {
	private Polygon profile;
	private Area area;
	private Line2D.Double[] lines = new Line2D.Double[0];

	public Obscurer(Polygon prof) {
		this.profile = prof;
		this.area = new Area(this.profile);
	}

	public Polygon getProfile() {
		return profile;
	}

	public void doSegments() {
		/*
		for(int i = 0; i < Main.obscList.size(); i++) {
			Obscurer o = Main.obscList.get(i);
			if(o.equals(this)) continue;
			Area test = (Area) area.clone();
			test.intersect(o.area);
			if((test.getBounds().width+test.getBounds().height) > 0) {
				area.add(o.area);
				Polygon temp = new Polygon();
				PathIterator path = area.getPathIterator(null);
		        while (!path.isDone()) {
		            toPolygon(path,temp);
		            path.next();
		        }
		        Main.obscList.remove(o);
		        i = 0;
		        profile = temp;
			}

		}*/
		Point2D.Double[] points = new Point2D.Double[profile.npoints];
		for(int i = 0; i < profile.npoints; i++) {
			points[i] = new Point2D.Double(profile.xpoints[i], profile.ypoints[i]);
		}
		Line2D.Double[] segments = new Line2D.Double[profile.npoints];
		for(int i = 0; i < profile.npoints;i++) {
			segments[i] = new Line2D.Double(points[i].getX(), points[i].getY(), points[(i+1)%profile.npoints].getX(), points[(i+1)%profile.npoints].getY());
		}
		this.lines = segments;
	}

	private static void toPolygon(PathIterator p_path,Polygon p) {
        double[] point = new double[2];
        if(p_path.currentSegment(point) != PathIterator.SEG_CLOSE) {
           p.addPoint((int) point[0], (int) point[1]);
        }
    }


	public Line2D.Double[] lineSegments() {
		return lines.clone();
	}
}