import java.awt.*;

public class DrawningBattleship {
    EntityBattleship Battleship;
    private DrawningBlocks drawingBlocks;
    public EntityBattleship Battleship()
    {return Battleship; }
    /// <summary>
    /// Левая координата отрисовки корабля
    /// </summary>
    private float _startPosX;
    /// <summary>
    /// Верхняя кооридната отрисовки корабля
    /// </summary>
    private float _startPosY;
    /// <summary>
    /// Ширина окна отрисовки
    /// </summary>
    private Integer _pictureWidth = null;
    /// <summary>
    /// Высота окна отрисовки
    /// </summary>
    private Integer _pictureHeight = null;
    /// <summary>
    /// Ширина отрисовки корабля
    /// </summary>
    private final int _battleshipWidth = 120;
    /// <summary>
    /// Высота отрисовки корабля
    /// </summary>
    private final int _battleshipHeight = 50;
    /// <summary>
    /// Инициализация свойств
    /// </summary>
    /// <param name="speed">Скорость</param>
    /// <param name="weight">Вес корабля</param>
    /// <param name="bodyColor">Цвет корпуса</param>
    public void Init(int speed, float weight, Color bodyColor, EntityBattleship entityBattleship, int blocks)
    {
        Battleship = new EntityBattleship();
        Battleship.Init(speed, weight, bodyColor);
        drawingBlocks = new DrawningBlocks();
        drawingBlocks.Init(blocks, Color.black);
    }
    /// <summary>
    /// Установка позиции корабля
    /// </summary>
    /// <param name="x">Координата X</param>
    /// <param name="y">Координата Y</param>
    /// <param name="width">Ширина картинки</param>
    /// <param name="height">Высота картинки</param>
    public void SetPosition(int x, int y, int width, int height)
    {

        if ((x > 0 && y > 0) && (_battleshipHeight + y < height) && (_battleshipWidth + x < width))
        {
            _startPosX = x;
            _startPosY = y;
            _pictureWidth = width;
            _pictureHeight = height;
        }

    }
    /// <summary>
    /// Изменение направления перемещения
    /// </summary>
    /// <param name="direction">Направление</param>
    public void MoveTransport(Direction direction)
    {
        if (_pictureWidth == null || _pictureHeight == null)
        {
            return;
        }
        switch (direction)
        {
            // вправо
            case Right:
                if (_startPosX + _battleshipWidth + Battleship.GetStep() < _pictureWidth)
                {
                    _startPosX += Battleship.GetStep();
                }
                break;
            //влево
            case Left:
                if (_startPosX - Battleship.GetStep() >= 0)
                {
                    _startPosX -= Battleship.GetStep();
                }

                break;

            //вверх
            case Up:
                if (_startPosY  - Battleship.GetStep() >= 0)
                {
                    _startPosY -= Battleship.GetStep();
                }

                break;
            //вниз
            case Down:
                if (_startPosY + _battleshipHeight + Battleship.GetStep() < _pictureHeight)
                {
                    _startPosY += Battleship.GetStep();
                }
                break;
        }
    }
    /// <summary>
    /// Отрисовка корабля
    /// </summary>
    /// <param name="g"></param>
    public void DrawTransport(Graphics2D g)
    {
        if (_startPosX < 0 || _startPosY < 0
                || _pictureHeight == null || _pictureWidth == null)
        {
            return;
        }
        g.setColor(Color.BLACK);

        //Корпус корабля
        g.setColor(Battleship.bodyColor);
        g.fillPolygon(new int[]{(int) _startPosX, (int) _startPosX , (int) _startPosX+80, (int) _startPosX + 120, (int)_startPosX + 80, (int)_startPosX},
                new int[]{(int) _startPosY, (int) _startPosY+50 , (int) _startPosY+50, (int) _startPosY + 25, (int)_startPosY, (int)_startPosY}, 6);
        //Пушка
        g.setColor(Color.BLACK);
        g.drawRect((int)_startPosX + 20, (int)_startPosY + 20, 30, 10);
        g.drawRect((int)_startPosX + 50,(int) _startPosY + 10, 20, 30);
        g.fillRect((int)_startPosX + 20, (int)_startPosY + 20, 30, 10);
        g.fillRect((int)_startPosX + 50, (int)_startPosY + 10, 20, 30);

        //Отсек
        g.setColor(Color.BLUE);
        g.drawOval((int)_startPosX+80, (int)_startPosY+15, 20, 20);
        g.fillOval((int)_startPosX + 80, (int)_startPosY + 15, 20, 20);
        g.setColor(Color.BLACK);
        g.fillRect((int)_startPosX-5, (int)_startPosY+10, 5, 5);
        g.fillRect((int)_startPosX - 5, (int)_startPosY + 35, 5, 5);
        drawingBlocks.Draw(g, (int) _startPosX, (int) _startPosY);

    }
    /// <summary>
    /// Смена границ формы отрисовки
    /// </summary>
    /// <param name="width">Ширина картинки</param>
    /// <param name="height">Высота картинки</param>
    public void ChangeBorders(int width, int height)
    {
        _pictureWidth = width;
        _pictureHeight = height;
        if (_pictureWidth <= _battleshipWidth || _pictureHeight <= _battleshipHeight)
        {
            _pictureWidth = null;
            _pictureHeight = null;
            return;
        }
        if (_startPosX + _battleshipWidth > _pictureWidth)
        {
            _startPosX = _pictureWidth - _battleshipWidth;
        }
        if (_startPosY + _battleshipHeight > _pictureHeight)
        {
            _startPosY = _pictureHeight - _battleshipHeight;
        }
    }
}