kittens

import java.awt.Color;
import java.util.List;

import com.sun.xml.internal.bind.v2.runtime.ElementBeanInfoImpl;

import ihs.apcs.spacebattle.*;
import ihs.apcs.spacebattle.commands.*;

public class MyFirstShip extends BasicSpaceship {

    final static int SCANNING = 1;
    final static int HUNTING = 2;
    final static int AIMING = 3;
    final static int FIRING = 4;

    private int mode = SCANNING;
    private ObjectStatus target = null;

    @Override
    public RegistrationData registerShip(int numImages, int worldWidth, int worldHeight)
    {
        return new RegistrationData("all your base are belong to us", new Color(0, 255, 255), 0);
    }

    //Send a radar ping to see what's out there
    private ShipCommand scan() {
        mode = HUNTING;
        return new RadarCommand(4); //Find objects
    }

    //Determine which target you'll fire at
    private ShipCommand hunt(BasicEnvironment env) {
        Point myPosition = env.getShipStatus().getPosition();

        List<ObjectStatus> asteroids =  env.getRadar().getByType("Asteroid");
        if (asteroids.size() == 0) {
            return new RadarCommand(4); //Scan again if no asteroids have been found
        }
        ObjectStatus closest = asteroids.get(0);
        double closestDistance = myPosition.getDistanceTo(closest.getPosition());
        for (ObjectStatus s : asteroids) {
            double distance = myPosition.getDistanceTo(s.getPosition());
            if (distance < closestDistance) {
                closest = s;
                closestDistance = distance;
            }
        }
        target = closest;
        mode = AIMING;
        return new RadarCommand(3, target.getId());
    }

    private ShipCommand aim(BasicEnvironment env) {
        Point myPosition = env.getShipStatus().getPosition();
        if (target != null) {
            ObjectStatus targetStatus = env.getRadar().getById(target.getId());
            Point targetPosition = targetStatus.getPosition();

            mode = FIRING;
            return new RotateCommand(myPosition.getAngleTo(targetPosition));
        } else {
            return scan();
        }

    }

    private ShipCommand fire() {
        mode = SCANNING;
        return new FireTorpedoCommand('F');
    }

    @Override
    public ShipCommand getNextCommand(BasicEnvironment env)
    {
        Point myPosition = env.getShipStatus().getPosition();

        if (mode == SCANNING) {
            return scan();
        }
        else if (mode == HUNTING) {
            return hunt(env);
        } else if (mode == AIMING) {
            return aim(env);
        } else if (mode == FIRING) {
            return fire();
        }
        return scan();  //default behavior

    }
}