GraphicRectangle

//Andy Zhang, 2 period , 12/16/15
import gpdraw.*;
public class GraphicPolygon extends RegularPolygon
{
    // instance variables - replace the example below with your own
    private DrawingTool pen = new DrawingTool(new SketchPad(400, 400));
    private double xPosition, yPosition;
    private double x, y;
    private double sideLength;
    private int numSides;
    private double angle;
    public GraphicPolygon(int numSides, double sideLength)
    {
        // initialise instance variables
        super(numSides, sideLength);
        xPosition = yPosition = 0;
    }
    public GraphicPolygon(int numSides, double sideLength, double xPostion, double yPostion)
    {
        //constructor
        super(numSides, sideLength);
        xPosition = x;
        yPosition = y;
    }

    public void moveTo(double x, double y)
    {
        pen.move(x ,y);
    }
    public void draw()
    {
        pen.up();
        pen.move(xPosition, yPosition);
        pen.move(getr());
        pen.turnRight(90);
        pen.down();
        pen.move(getSideLength()/2);

        for(int x = 1; x < getNumside(); x++)
        {
            pen.turnRight(180 - vertexAngle());
            pen.forward(getSideLength());
        }

        pen.turnRight(180 - vertexAngle());
        pen.forward(getSideLength()/2);
    }
}