gann-cdf / graphics

import org.gannacademy.cdf.graphics.geom.Arc;

public class ArcTest extends ShapeTest {

    protected double dAngle;

    protected boolean isStart;

    @Override

    protected void setup() {

        super.setup();

        shape = new Arc(width, height, width, height, 0, 360, getDrawingPanel());

        dAngle = 1;

        isStart = true;

    }

    @Override

    protected void loop() {

        Arc arc = (Arc) shape;

        if (isStart) {

            arc.setAngleExtent(arc.getAngleExtent() - dAngle);

            arc.setAngleStart(arc.getAngleStart() + dAngle);

            if (arc.getAngleStart() > 359) {

                dAngle = -dAngle;

            }

            if (arc.getAngleStart() < 1) {

                isStart = false;

            }

        } else {

            arc.setAngleExtent(arc.getAngleExtent() + dAngle);

            if (arc.getAngleExtent() < 1) {

                dAngle = -dAngle;

            }

            if (arc.getAngleExtent() > 359) {

                isStart = true;

            }

        }

        super.loop();

    }

}