PIbd-21_Malin_D.V._WarmlyLocomotive_Base/WarmlyLocomotive/WarmlyLocomotive/DrawningLocomotive.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace WarmlyLocomotive
{
    /// <summary>
    /// Класс, отвечающий за прорисовку и перемещение объекта-сущности
    /// </summary>
    public class DrawningLocomotive
    {
        /// <summary>
        /// Класс-сущность
        /// </summary>
        public EntityLocomotive Locomotive { get; protected set; }
        /// <summary>
        /// Левая координата отрисовки локомотива
        /// </summary>
        protected float _startPosX;
        /// <summary>
        /// Верхняя кооридната отрисовки локомотива
        /// </summary>
        protected float _startPosY;
        /// <summary>
        /// Ширина окна отрисовки
        /// </summary>
        private int? _pictureWidth = null;
        /// <summary>
        /// Высота окна отрисовки
        /// </summary>
        private int? _pictureHeight = null;
        /// <summary>
        /// Ширина отрисовки локомотива
        /// </summary>
        private readonly int _locomotiveWidth = 210;
        /// <summary>
        /// Высота отрисовки локомотива
        /// </summary>
        private readonly int _locomotiveHeight = 105;
        /// <summary>
        /// Инициализация свойств
        /// </summary>
        /// <param name="speed">Скорость</param>
        /// <param name="weight">Вес локомотива</param>
        /// <param name="bodyColor">Цвет кузова</param>
        public DrawningLocomotive(int speed, float weight, Color bodyColor)
        {
            Locomotive = new EntityLocomotive(speed, weight, bodyColor);
        }
        protected DrawningLocomotive(int speed, float weight, Color bodyColor, int locomotiveWidth, int locomotiveHeight) : this(speed, weight, bodyColor)
        {
            _locomotiveWidth = locomotiveWidth;
            _locomotiveHeight = locomotiveHeight;
        }
        /// <summary>
        /// Установка позиции локомотива
        /// </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 + _locomotiveWidth <= width && y + _locomotiveHeight <= height && x >= 0 && y >= 0)
            {
                _startPosX = x;
                _startPosY = y;
                _pictureWidth = width;
                _pictureHeight = height;
            }
        }
        /// <summary>
        /// Изменение направления пермещения
        /// </summary>
        /// <param name="direction">Направление</param>
        public void MoveTransport(Direction direction)
        {
            if (!_pictureWidth.HasValue || !_pictureHeight.HasValue)
            {
                return;
            }
            switch (direction)
            {
                // вправо
                case Direction.Right:
                    if (_startPosX + _locomotiveWidth + Locomotive.Step < _pictureWidth)
                    {
                        _startPosX += Locomotive.Step;
                    }
                    break;
                //влево
                case Direction.Left:
                    if (_startPosX - Locomotive.Step > 0)
                    {
                        _startPosX -= Locomotive.Step;
                    }
                    break;
                //вверх
                case Direction.Up:
                    if (_startPosY - Locomotive.Step > 0)
                    {
                        _startPosY -= Locomotive.Step;
                    }
                    break;
                //вниз
                case Direction.Down:
                    if (_startPosY + _locomotiveHeight + Locomotive.Step < _pictureHeight)
                    {
                        _startPosY += Locomotive.Step;
                    }
                    break;
            }
        }
        /// <summary>
        /// Отрисовка локомотива
        /// </summary>
        /// <param name="g"></param>
        public virtual void DrawTransport(Graphics g)
        {
            if (_startPosX < 0 || _startPosY < 0
                || !_pictureHeight.HasValue || !_pictureWidth.HasValue)
            {
                return;
            }
            Pen pen = new(Color.Black);
            Brush br = new SolidBrush(Locomotive?.BodyColor ?? Color.Black);
            //кузов
            PointF[] polygonPoints = new PointF[4];
            polygonPoints[0] = new PointF(_startPosX + 10, _startPosY);
            polygonPoints[1] = new PointF(_startPosX + 190, _startPosY);
            polygonPoints[2] = new PointF(_startPosX + 210, _startPosY + 40);
            polygonPoints[3] = new PointF(_startPosX + 10, _startPosY + 40);
            g.FillPolygon(br, polygonPoints);
            g.DrawPolygon(pen, polygonPoints);
            g.FillRectangle(br, _startPosX + 10, _startPosY + 40, 200, 40);
            g.DrawRectangle(pen, _startPosX + 10, _startPosY + 40, 200, 40);
            //колеса
            Brush brGray = new SolidBrush(Color.Gray);
            g.FillEllipse(brGray, _startPosX + 30, _startPosY + 80, 30, 25);
            g.FillEllipse(brGray, _startPosX + 70, _startPosY + 80, 30, 25);
            g.FillEllipse(brGray, _startPosX + 130, _startPosY + 80, 30, 25);
            g.FillEllipse(brGray, _startPosX + 170, _startPosY + 80, 30, 25);
            Pen dopPen = new(Color.Black, 2);
            g.DrawEllipse(dopPen, _startPosX + 30, _startPosY + 80, 30, 25);
            g.DrawEllipse(dopPen, _startPosX + 70, _startPosY + 80, 30, 25);
            g.DrawEllipse(dopPen, _startPosX + 130, _startPosY + 80, 30, 25);
            g.DrawEllipse(dopPen, _startPosX + 170, _startPosY + 80, 30, 25);
            //стекла и дверь
            Brush brBrown = new SolidBrush(Color.Brown);
            g.FillRectangle(brBrown, _startPosX + 100, _startPosY + 20, 25, 45);
            g.DrawRectangle(pen, _startPosX + 100, _startPosY + 20, 25, 45);
            pen = new Pen(Color.Blue);
            g.DrawRectangle(pen, _startPosX + 20, _startPosY + 10, 15, 20);
            g.DrawRectangle(pen, _startPosX + 140, _startPosY + 10, 15, 20);
            g.DrawRectangle(pen, _startPosX + 170, _startPosY + 10, 15, 20);
            //задняя часть
            Brush brBlack = new SolidBrush(Color.Black);
            g.FillRectangle(brBlack, _startPosX, _startPosY + 10, 10, 60);
        }
        /// <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 <= _locomotiveWidth || _pictureHeight <= _locomotiveHeight)
            {
                _pictureWidth = null;
                _pictureHeight = null;
                return;
            }
            if (_startPosX + _locomotiveWidth > _pictureWidth)
            {
                _startPosX = _pictureWidth.Value - _locomotiveWidth;
            }
            if (_startPosY + _locomotiveHeight > _pictureHeight)
            {
                _startPosY = _pictureHeight.Value - _locomotiveHeight;
            }
        }
        public (float Left, float Right, float Top, float Bottom) GetCurrentPosition()
        {
            return (_startPosX, _startPosY, _startPosX + _locomotiveWidth, _startPosY + _locomotiveHeight);
        }
    }
}