PIBD-13_Pazushkin_I.P._Simple/ProjectCleaningCar/ProjectCleaningCar/Drawning/DrawningCar.cs

using ProjectCleaningCar.Entities;

namespace ProjectCleaningCar.Drawning;

public class DrawningCar
{
    /// <summary>
    /// Класс-сущность
    /// </summary>
    public EntityCar? EntityCar { get; protected set; }
    /// <summary>
    /// Ширина окна
    /// </summary>
    private int? _pictureWidth;
    /// <summary>
    /// Высота окна
    /// </summary>
    private int? _pictureHeight;
    /// <summary>
    /// Левая координата прорисовки машины
    /// </summary>
    protected int? _startPosX;
    /// <summary>
    /// Верхняя кооридната прорисовки машины
    /// </summary>
    protected int? _startPosY;
    /// <summary>
    /// Ширина прорисовки машины
    /// </summary>
    private readonly int _drawningCarWidth = 130;
    /// <summary>
    /// Высота прорисовки машины
    /// </summary>
    private readonly int _drawningCarHeight = 80;
    /// <summary>
    /// Пустой конструктор
    /// </summary>
    private DrawningCar()
    {
        _pictureWidth = null;
        _pictureHeight = null;
        _startPosX = null;
        _startPosY = null;
    }
    /// <summary>
    /// Конструктор
    /// </summary>
    /// <param name="speed">Скорость</param>
    /// <param name="weight">Вес</param>
    /// <param name="bodyColor">Основной цвет</param>
    public DrawningCar(int speed, double weight, Color bodyColor) : this()
    {
        EntityCar = new EntityCar(speed, weight, bodyColor);
    }
    /// <summary>
    /// Конструктор для наследников
    /// </summary>
    /// <param name="drawningCarWidth">Ширина прорисовки машины</param>
    /// <param name="drawningCarHeight">Высота прорисовки машины</param>
    protected DrawningCar(int drawningCarWidth, int drawningCarHeight) : this()
    {
        _drawningCarWidth = drawningCarWidth;
        _drawningCarHeight = drawningCarHeight;
    } 
    /// <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 (width < _drawningCarWidth || height < _drawningCarHeight) { return false; };
        _pictureWidth = width;
        _pictureHeight = height;
        if (_startPosX != null || _startPosY != null)
        {
            if (_startPosX + _drawningCarWidth > _pictureWidth)
            {
                _startPosX = -_drawningCarWidth + _pictureWidth;
            }
            else if (_startPosX < 0)
            {
                _startPosX = 0;
            }
            if (_startPosY + _drawningCarHeight > _pictureHeight)
            {
                _startPosY = -_drawningCarHeight + _pictureHeight;
            }
            else if (_startPosY < 0)
            {
                _startPosY = 0;
            }
        }
        return true;
    }

    /// <summary>
    /// Установка позиции
    /// </summary>
    /// <param name="x">Координата X</param>
    /// <param name="y">Кордината Y</param>
    public void SetPosition(int x, int y)
    {
        if (!_pictureHeight.HasValue || !_pictureWidth.HasValue)
        {
            return;
        }

        if (x + _drawningCarWidth > _pictureWidth)
        {
            _startPosX = _pictureWidth - _drawningCarWidth;
        }
        else if (x < 0)
        {
            _startPosX = 0;
        }
        else
        {
            _startPosX = x;
        }

        if (y + _drawningCarHeight > _pictureHeight)
        {
            _startPosY = _pictureHeight - _drawningCarHeight;
        }
        else if (y < 0)
        {
            _startPosY = 0;
        }
        else
        {
            _startPosY = y;
        }

    }
    /// <summary>
    /// Изменение направления перемещения
    /// </summary>
    /// <param name="direction">Направление</param>
    /// <returns>true - перемещение выполнено, false - перемещение невозможно</returns>
    public bool MoveTransport(DirectionType direction)
    {
        if (EntityCar == null || !_startPosX.HasValue || !_startPosY.HasValue)
        {
            return false;
        }
        switch (direction)
        {
            //влево
            case DirectionType.Left:
                if (_startPosX.Value - EntityCar.Step > 0)
                {
                    _startPosX -= (int)EntityCar.Step;
                }
                return true;
            //вправо
            case DirectionType.Right:
                if (_startPosX.Value + _drawningCarWidth + EntityCar.Step < _pictureWidth)
                {
                    _startPosX += (int)EntityCar.Step;
                }
                return true;
            //вверх
            case DirectionType.Up:
                if (_startPosY.Value - EntityCar.Step > 0)
                {
                    _startPosY -= (int)EntityCar.Step;
                }
                return true;
            //вниз
            case DirectionType.Down:
                if (_startPosY.Value + _drawningCarHeight + EntityCar.Step < _pictureHeight)
                {
                    _startPosY += (int)EntityCar.Step;
                }
                return true;
            default:
                return false;

        }
    }
    /// <summary>
    /// Отрисовка объекта
    /// </summary>
    /// <param name="g"></param>
    public virtual void DrawTransport(Graphics g)
    {
        if (EntityCar == null || !_startPosX.HasValue || !_startPosY.HasValue)
        {
            return;
        }
        Pen pen = new(Color.Black);
        Brush bodyBrush = new SolidBrush(EntityCar.BodyColor);
        //основание
        g.FillRectangle(bodyBrush, _startPosX.Value, _startPosY.Value + 35, 120, 10);
        g.DrawRectangle(pen, _startPosX.Value, _startPosY.Value + 35, 120, 10);
        //
        g.FillRectangle(bodyBrush, _startPosX.Value + 100, _startPosY.Value + 5, 20, 30);
        g.DrawRectangle(pen, _startPosX.Value + 100, _startPosY.Value + 5, 20, 30);
        //колёса
        g.FillEllipse(bodyBrush, _startPosX.Value + 10, _startPosY.Value + 45, 20, 20);
        g.DrawEllipse(pen, _startPosX.Value + 10, _startPosY.Value + 45, 20, 20);
        g.FillEllipse(bodyBrush, _startPosX.Value + 35, _startPosY.Value + 45, 20, 20);
        g.DrawEllipse(pen, _startPosX.Value + 35, _startPosY.Value + 45, 20, 20);
        g.FillEllipse(bodyBrush, _startPosX.Value + 97, _startPosY.Value + 45, 20, 20);
        g.DrawEllipse(pen, _startPosX.Value + 97, _startPosY.Value + 45, 20, 20);
    }
}