import java.util.ArrayList;
import javafx.scene.paint.Color;
import javafx.scene.canvas.GraphicsContext;
import javafx.scene.shape.StrokeLineCap;
import javafx.scene.shape.StrokeLineJoin;


public class Curve extends ArrayList<Point>
{
    private Color color;
    private double width;  //width of pen that draws the curve.
    public Curve(Color color, double width)
    {
        this.color = color;
        this.width = width;
    }
    public void draw(GraphicsContext pen)
    {
        pen.setStroke(color);
        pen.setLineWidth(width);
        pen.setLineCap(StrokeLineCap.ROUND);
        pen.setLineJoin(StrokeLineJoin.ROUND);
        pen.beginPath();  //starts the path
        pen.moveTo(get(0).getX(), get(0).getY());
        //there is nothing for the last point to join to.
        for(int k = 0;k < size() - 1 ;k++)
        {
            pen.lineTo(get(k + 1).getX(), get(k + 1).getY());
        }    
        pen.stroke();
    }

}