FishToEat3.cs

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

namespace Fishy
{
    class FishToEat3
    {
        /// <summary>
        /// 三级小鱼类
        /// </summary>
        public Rectangle Rectangle { get; set; }
        //定义左右上下的移动速度
        private int SpeedX;
        private int SpeedY;
        //定义矩形
        public FishToEat3(Rectangle rectangle)
        {
            Rectangle = rectangle;
            SpeedX = +8;
            SpeedY = 0;
        }
        //定义鱼嘴的矩形
        public Rectangle MouthRectangle
        {
            get
            {
                //向左
                if (SpeedX < 0)
                {
                    return new Rectangle(Rectangle.X + Rectangle.Width - 25, Rectangle.Y + Rectangle.Height / 2 - 12, 25, 25);
                }
                //向右
                else
                {
                    return new Rectangle(Rectangle.X, Rectangle.Y + Rectangle.Height / 2 - 12, 25, 25);
                }
            }
        }

        /// <summary>
        /// 画小鱼并定义转向
        /// </summary>
        /// <returns></returns>
        private Image OtherImage()
        {
            //向左
            if (SpeedX > 0)
                return (Image)Properties.Resources.FishToEat3.Clone();
            Image img = (Image)Properties.Resources.FishToEat3.Clone();
            //向右
            img.RotateFlip(RotateFlipType.RotateNoneFlipX);
            return img;
        }
        //画小鱼
        public void Draw(Graphics g)
        {