PIbd-21_Kargin_D.E._AirFighter._Base/AirFighter/AirFighter/DrawningAirFighter.cs

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

namespace AirFighter
{
    /// <summary>
    /// Класс отвечающий за прорисовку и перемещение объекта-сущности
    /// </summary>
    internal class DrawningAirFighter
    {
        /// <summary>
        /// Класс-сущность
        /// </summary>
        public EntityAirFighter AirFighter { private set; get; }
        /// <summary>
        /// Левая координата отрисовки самолета
        /// </summary>
        private float _startPosX;
        /// <summary>
        /// Верхняя кооридната отрисовки самолета
        /// </summary>
        private float _startPosY;
        /// <summary>
        /// Ширина окна отрисовки
        /// </summary>
        private int? _pictureWidth = null;
        /// <summary>
        /// Высота окна отрисовки
        /// </summary>
        private int? _pictureHeight = null;
        /// <summary>
        /// Ширина отрисовки самолета
        /// </summary>
        private readonly int _airFighterWidth = 80;
        /// <summary>
        /// Высота отрисовки самолета
        /// </summary>
        private readonly int _airFighterHeight = 70;
        /// <summary>
        /// Инициализация свойств
        /// </summary>
        /// <param name="speed">Скорость</param>
        /// <param name="weight">Вес самолета</param>
        /// <param name="bodyColor">Цвет кузова</param>
        public void Init(int speed, float weight, Color bodyColor)
        {
            AirFighter = new EntityAirFighter();
            AirFighter.Init(speed, weight, bodyColor);
        }
        /// <summary>
        /// Установка позиции самолета
        /// </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(width < _airFighterWidth || height < _airFighterHeight)
            {
                _pictureWidth = null;
                _pictureHeight = null;
                return;
            }
            if(x < 0 || x + _airFighterWidth > width)
            {
                x = width - _airFighterWidth;
            }
            if(y < 0 || y + _airFighterHeight > height)
            {
                y = height - _airFighterHeight;
            }
            
                _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.HasValue || !_pictureHeight.HasValue)
            {
                return;
            }
            switch (direction)
            {
                // вправо
                case Direction.Right:
                    if (_startPosX + _airFighterWidth + AirFighter.Step < _pictureWidth)
                    {
                        _startPosX += AirFighter.Step;
                    }
                    break;
                //влево
                case Direction.Left:
                    if (_startPosX - AirFighter.Step >= 0)
                    {
                        _startPosX -= AirFighter.Step;
                    }
                    break;
                //вверх
                case Direction.Up:
                    if (_startPosY - AirFighter.Step >= 0)
                    {
                        _startPosY -= AirFighter.Step;
                    }
                    break;
                //вниз
                case Direction.Down:
                    if (_startPosY + _airFighterHeight + AirFighter.Step < _pictureHeight)
                    {
                        _startPosY += AirFighter.Step;
                    }
                    break;
            }
        }
        /// <summary>
        /// Отрисовка самолета
        /// </summary>
        public void DrawAirFighter(Graphics g)
        {
            if (_startPosX < 0 || _startPosY < 0 || !_pictureHeight.HasValue || !_pictureWidth.HasValue)
            {
                return;
            }
            Pen pen = new(Color.Black);
            PointF[] pointAirFighter =
            {
                new PointF(_startPosX + 80, _startPosY + 35),
                new PointF(_startPosX + 70, _startPosY + 30),
                new PointF(_startPosX + 30, _startPosY + 30),
                new PointF(_startPosX + 35, _startPosY),
                new PointF(_startPosX + 40, _startPosY),
                new PointF(_startPosX + 40, _startPosY + 30),
                new PointF(_startPosX, _startPosY + 30),
                new PointF(_startPosX, _startPosY + 15),
                new PointF(_startPosX + 10, _startPosY + 25),
                new PointF(_startPosX + 10, _startPosY + 30),
                new PointF(_startPosX, _startPosY + 30),
                new PointF(_startPosX, _startPosY + 55),
                new PointF(_startPosX + 10, _startPosY + 45),
                new PointF(_startPosX + 10, _startPosY + 40),
                new PointF(_startPosX, _startPosY + 40),
                new PointF(_startPosX + 40, _startPosY + 40),
                new PointF(_startPosX + 40, _startPosY + 70),
                new PointF(_startPosX + 35, _startPosY + 70),
                new PointF(_startPosX + 30, _startPosY + 40),
                new PointF(_startPosX + 70, _startPosY + 40)
            };
            SolidBrush brushAirFighter = new SolidBrush(AirFighter.BodyColor);
            g.FillPolygon(brushAirFighter, pointAirFighter);
            g.DrawPolygon(pen, pointAirFighter);
        }

        /// <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 <= _airFighterWidth || _pictureHeight <= _airFighterHeight)
            {
                _pictureWidth = null;
                _pictureHeight = null;
                return;
            }
            if (_startPosX + _airFighterWidth > _pictureWidth.Value)
            {
                _startPosX = _pictureWidth.Value - _airFighterWidth;
            }
            if (_startPosY + _airFighterHeight > _pictureHeight.Value)
            {
                _startPosY = _pictureHeight.Value - _airFighterHeight;
            }
        }
    }
}