PIbd-22_Turner_I.A._AntiAircraftGun._Base/AntiAircraftGun/AntiAircraftGun/DrawingAntiAircraftGun.cs

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

namespace AntiAircraftGun
{
    /// <summary>
    /// Класс, отвечающий за прорисовку и перемещение объекта-сущности
    /// </summary>
    internal class DrawingAntiAircraftGun
    {
        /// <summary>
        /// Класс-сущность
        /// </summary>
        public EntityAntiAircraftGun AntiAircraftGun { protected set; get; }
        /// <summary>
        /// Левая координата отрисовки зенитного орудия
        /// </summary>
        protected float _startPosX;
        /// <summary>
        /// Верхняя кооридната отрисовки зенитного орудия
        /// </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 зенитного орудия
        /// </summary>
        private readonly int _antiAircrafGunWidth = 90;
        /// <summary>
        /// Высота отрисовки зенитного орудия
        /// </summary>
        private readonly int _antiAircrafGunHeight = 40;
        /// <summary>
        /// Инициализация свойств
        /// </summary>
        /// <param name="speed">Скорость</param>
        /// <param name="weight">Вес зенитного орудия</param>
        /// <param name="bodyColor">Цвет корпуса</param>
        public DrawingAntiAircraftGun(int speed, float weight, Color bodyColor)
        {
            AntiAircraftGun = new EntityAntiAircraftGun(speed, weight, bodyColor);
        }
        /// <summary>
        /// Инициализация свойств
        /// </summary>
        /// <param name="speed">Скорость</param>
        /// <param name="weight">Вес зенитного орудия</param>
        /// <param name="bodyColor">Цвет корпуса</param>
        /// <param name="_antiAircraftGunWidth">Ширина отрисовки зенитного орудия</param>
        /// <param name="_antiAircraftGunHeight">Высота отрисовки зенитного орудия</param>
        protected DrawingAntiAircraftGun(int speed, float weight, Color bodyColor, int antiAircrafGunWidth, int antiAircrafGunHeight) :
        this(speed, weight, bodyColor)
        {
            _antiAircrafGunWidth = antiAircrafGunWidth;
            _antiAircrafGunHeight = antiAircrafGunHeight;
        }
        /// <summary>
        /// Установка позиции зенитного орудия
        /// </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)
        {
            _pictureHeight = height < _antiAircrafGunHeight ? null : height;
            _pictureWidth = width < _antiAircrafGunWidth ? null : width;
            if(_pictureHeight.HasValue && _pictureWidth.HasValue)
            {
                _startPosX = x < 0 || x > _pictureWidth - _antiAircrafGunWidth ? (int)_pictureWidth - _antiAircrafGunWidth : x;
                _startPosY = y < 0 || y > _pictureHeight - _antiAircrafGunHeight ? (int)_pictureHeight - _antiAircrafGunHeight : y;
            }
        }
        /// <summary>
        /// Изменение направления перемещения
        /// </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 + _antiAircrafGunWidth + AntiAircraftGun.Step < _pictureWidth)
                    {
                        _startPosX += AntiAircraftGun.Step;
                    }
                    break;
                //влево
                case Direction.Left:
                    if (_startPosX - AntiAircraftGun.Step >= 0)
                    {
                        _startPosX -= AntiAircraftGun.Step;
                    }
                    break;
                //вверх
                case Direction.Up:
                    if (_startPosY - AntiAircraftGun.Step >= 0)
                    {
                        _startPosY -= AntiAircraftGun.Step;
                    }
                    break;
                //вниз
                case Direction.Down:
                    if (_startPosY + _antiAircrafGunHeight + AntiAircraftGun.Step < _pictureHeight)
                    {
                        _startPosY += AntiAircraftGun.Step;
                    }
                    break;
            }
        }
        /// <summary>
        /// Отрисовка зенитного орудия
        /// </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);
            //границы зенитного орудия
            g.DrawRectangle(pen, _startPosX + 25, _startPosY, 40, 10);
            g.DrawRectangle(pen, _startPosX + 5, _startPosY + 10, 80, 10);
            g.DrawRectangle(pen, _startPosX + 10, _startPosY + 20, 70, 20);
            g.DrawEllipse(pen, _startPosX, _startPosY + 20, 20, 20);
            g.DrawEllipse(pen, _startPosX + 70, _startPosY + 20, 20, 20);
            //гусеницы
            Brush brGray = new SolidBrush(Color.Gray);
            g.FillRectangle(brGray, _startPosX + 10, _startPosY + 20, 70, 20);
            g.FillEllipse(brGray, _startPosX, _startPosY + 20, 20, 20);
            g.FillEllipse(brGray, _startPosX + 70, _startPosY + 20, 20, 20);
            //катки в гусеницах
            Brush brBlack = new SolidBrush(Color.Black);
            g.FillEllipse(brBlack, _startPosX +1, _startPosY + 21, 18, 18);
            g.FillEllipse(brBlack, _startPosX + 69, _startPosY + 21, 18, 18);
            g.FillEllipse(brBlack, _startPosX + 19, _startPosY + 30, 11, 11);
            g.FillEllipse(brBlack, _startPosX + 58, _startPosY + 30, 11, 11);
            g.FillEllipse(brBlack, _startPosX + 32, _startPosY + 30, 11, 11);
            g.FillEllipse(brBlack, _startPosX + 45, _startPosY + 30, 11, 11);
            //корпус
            Brush br = new SolidBrush(AntiAircraftGun?.BodyColor ?? Color.Black);
            g.FillRectangle(br, _startPosX + 25, _startPosY, 40, 10);
            g.FillRectangle(br, _startPosX + 5, _startPosY + 10, 80, 10);
            g.FillEllipse(br, _startPosX + 27, _startPosY + 16, 8, 8);
            g.FillEllipse(br, _startPosX + 40, _startPosY + 16, 8, 8);
            g.FillEllipse(br, _startPosX + 53, _startPosY + 16, 8, 8);
        }
        /// <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 <= _antiAircrafGunWidth || _pictureHeight <= _antiAircrafGunHeight)
            {
                _pictureWidth = null;
                _pictureHeight = null;
                return;
            }
            if (_startPosX + _antiAircrafGunWidth > _pictureWidth)
            {
                _startPosX = _pictureWidth.Value - _antiAircrafGunWidth;
            }
            if (_startPosY + _antiAircrafGunHeight > _pictureHeight)
            {
                _startPosY = _pictureHeight.Value - _antiAircrafGunHeight;
            }
        }
        /// <summary>
        /// Получение текущей позиции объекта
        /// </summary>
        public (float Left, float Right, float Top, float Bottom) GetCurrentPosition()
        {
            return (_startPosX, _startPosX + _antiAircrafGunWidth, _startPosY, _startPosY + _antiAircrafGunHeight);
        }
    }
}