package class4_1_RobotFactories;// Dr. Yoder. MSOE. 19 December 2016

/**
 * This robot has a central arm that rotates around the robot base.
 * It then has a telescoping hand that moves in and out from the
 * center.
 */
public class CircularRobot extends AbstractRobot {

    private CircularRobot() {

    }

    private double length;
    private double angle;

    @Override
    public void setTarget(double x, double y) {
        super.setTarget(x, y);
        angle = Math.atan2(y,x);
        length = Math.hypot(x,y);
    }

    @Override
    public String toString() {
        return "The robot reaches the target at "+getTargetString()+ " by setting the " +
                "arm to angle "+angle+" radians and telescoping to "+length+" meters.";
    }

    public static class CircularRobotFactory implements RobotFactory {
        @Override
        public AbstractRobot create() {
            return new CircularRobot();
        }
    }
}