using ProjectTank.Entities;
namespace ProjectTank.Drawnings
{
    public class DrawningTank2
    {
        /// <summary>
        /// класс - сущность
        /// </summary>
        public EntityTank2? EntityTank2 { get; protected set; }

        /// <summary>
        /// ширина окна
        /// </summary>
        private int? _pictureWidth;

        /// <summary>
        /// высота окна
        /// </summary>
        private int? _pictureHeight;

        /// <summary>
        /// Левая координата прорисовки танка
        /// </summary>
        protected int? _startPosX;

        /// <summary>
        /// Верхняя координата прорисовки танка
        /// </summary>
        protected int? _startPosY;

        /// <summary>
        /// ширина прорисовки танка
        /// /// </summary>
        private readonly int _drawningTankWidth = 150;

        /// <summary>
        /// высота прорисовки танка
        /// </summary>
        private readonly int _drawningTankHeight = 67;

        /// <summary>
        /// Координата X объекта
        /// </summary>
        public int? GetPosX => _startPosX;

        /// <summary>
        /// Координата Y объекта
        /// </summary>
        public int? GetPosY => _startPosY;

        /// <summary>
        /// Ширина объекта
        /// </summary>
        public int GetWidth => _drawningTankWidth;

        /// <summary>
        /// Высота объекта
        /// </summary>
        public int GetHeight => _drawningTankHeight;

        /// <summary>
        /// Пустой конструктор
        /// </summary>
        private DrawningTank2()
        {
            _pictureWidth = null;
            _pictureHeight = null;
            _startPosX = null;
            _startPosY = null;
        }

        /// <summary>
        /// Конструктор
        /// <summary>
        /// <param name="speed">Скорость</param>
        /// <param name="weight">Вес танка</param>
        /// <param name="bodyColor">Основной цвет</param>
        public DrawningTank2(int speed, double weight, Color bodyColor) : this()
        {
            EntityTank2 = new EntityTank2(speed, weight, bodyColor);
        }
        /// <summary>
        /// Конструктор
        /// <summary>
        /// <param name="drawingBusWidth">Ширина прорисовки танка</param>
        /// <param name="drawingBusHeight">Высота прорисовки танка</param>
        protected DrawningTank2(int drawningTankWidth, int drawningTankHeight) : this()
        {
            _drawningTankWidth = drawningTankWidth;
            _drawningTankHeight = drawningTankHeight;
        }

        /// <summary>
        /// Установка границ поля
        /// </summary>
        /// <param name="width">Ширина поля</param>
        /// <param name="height">Высота поля</param>
        /// <returns>true - границы заданы, false - проверка не пройдена , нельзя разместить объект в этих размерах</returns>
        public bool SetPictureSize(int width, int height)
        {

            if (height < _drawningTankHeight || width < _drawningTankWidth)
            {
                return false;
            }
            _pictureHeight = height;
            _pictureWidth = width;
            if (_startPosX != null && _startPosY != null)
            {
                if (_startPosX < 0) _startPosX = 0;
                if (_startPosY < 0) _startPosY = 0;
                if (_pictureHeight.Value < _startPosY + _drawningTankHeight)
                {
                    _startPosY = _pictureHeight - _drawningTankHeight;
                }
                if (_pictureWidth.Value < _startPosX + _drawningTankWidth)
                {
                    _startPosX = _pictureWidth - _drawningTankWidth;
                }
            }

            return true;
        }
        /// <summary>
        /// Установка позиции
        /// </summary>
        /// <param name="x">Координата X</param>
        /// <param name="y">Координата Y</param>
        public void SetPosition(int x, int y)
        {
            if (!_pictureWidth.HasValue || !_pictureHeight.HasValue)
            {
                return;
            }
            _startPosX = x;
            _startPosY = y;
            if (_startPosX < 0) _startPosX = 0;
            if (_startPosY < 0) _startPosY = 0;
            if (_pictureHeight.Value < _startPosY + _drawningTankHeight)
            {
                _startPosY = _pictureHeight - _drawningTankHeight;
            }
            if (_pictureWidth.Value < _startPosX + _drawningTankWidth)
            {
                _startPosX = _pictureWidth - _drawningTankWidth;
            }

        }
        /// <summary>
        /// Изменение направления перемещения
        /// </summary>
        /// <param name="dicretion">направление</param>
        /// <returns></returns>
        public bool MoveTransport(DirectionType dicretion)
        {
            if (EntityTank2 == null || _startPosX == null || _startPosY == null)
            {
                return false;
            }
            switch (dicretion)
            {
                //влево
                case DirectionType.Left:
                    if (_startPosX.Value - EntityTank2.Step > 0)
                    {
                        _startPosX -= (int)EntityTank2.Step;
                    }
                    return true;
                //вправо
                case DirectionType.Right:
                    if (_startPosX.Value + _drawningTankWidth + EntityTank2.Step < _pictureWidth)
                    {
                        _startPosX += (int)EntityTank2.Step;
                    }
                    return true;
                //вверх
                case DirectionType.Up:
                    if (_startPosY.Value - EntityTank2.Step > 0)
                    {
                        _startPosY -= (int)EntityTank2.Step;
                    }
                    return true;
                //вниз
                case DirectionType.Down:
                    if (_startPosY + EntityTank2.Step + _drawningTankHeight < _pictureHeight)
                    {
                        _startPosY += (int)EntityTank2.Step;
                    }
                    return true;
                default:
                    return false;
            }

        }

        /// <summary>
        /// прорисовка танка
        /// </summary>
        /// <param name="g"></param>
        public virtual void DrawTransport(Graphics g)
        {
            if (EntityTank2 == null || !_startPosX.HasValue || !_startPosY.HasValue)
            {
                return;
            }
            Pen pen = new(Color.Black);
            Brush Br = new SolidBrush(EntityTank2.BodyColor);
            //основная часть танка
            g.DrawRectangle(pen, _startPosX.Value + 6, _startPosY.Value + 20, 135, 20);
            g.DrawRectangle(pen, _startPosX.Value + 45, _startPosY.Value, 55, 20);

            g.FillRectangle(Br, _startPosX.Value + 6, _startPosY.Value + 20, 135, 20);
            g.FillRectangle(Br, _startPosX.Value + 45, _startPosY.Value, 55, 20);

            //гусеницы

            g.DrawArc(pen, _startPosX.Value, _startPosY.Value + 40, 15, 30, 100, 170);
            g.DrawArc(pen, _startPosX.Value + 135, _startPosY.Value + 40, 15, 30, -90, 170);
            g.DrawLine(pen, _startPosX.Value + 5, _startPosY.Value + 40, _startPosX.Value + 145, _startPosY.Value + 40);
            g.DrawLine(pen, _startPosX.Value + 5, _startPosY.Value + 70, _startPosX.Value + 145, _startPosY.Value + 70);
            Pen WidePen = new(Color.Black);
            WidePen.Width = 2;
            g.DrawEllipse(WidePen, _startPosX.Value, _startPosY.Value + 40, 24, 24);
            g.DrawEllipse(WidePen, _startPosX.Value + 125, _startPosY.Value + 40, 24, 24);

            //катки
            g.DrawEllipse(pen, _startPosX.Value + 26, _startPosY.Value + 50, 20, 20);
            g.DrawEllipse(pen, _startPosX.Value + 52, _startPosY.Value + 50, 20, 20);
            g.DrawEllipse(pen, _startPosX.Value + 78, _startPosY.Value + 50, 20, 20);
            g.DrawEllipse(pen, _startPosX.Value + 104, _startPosY.Value + 50, 20, 20);


            g.DrawEllipse(pen, _startPosX.Value + 49, _startPosY.Value + 40, 5, 5);
            g.DrawEllipse(pen, _startPosX.Value + 75, _startPosY.Value + 40, 5, 5);
            g.DrawEllipse(pen, _startPosX.Value + 101, _startPosY.Value + 40, 5, 5);

        }

    }
}