Block.cs

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

namespace Demogo
{
    public class Block
    {
        Rectangle rectangle
        {
            get
            {
                return new Rectangle(Origin.X, Origin.Y, 15, 15);
            }
        }
        private bool _ishead;

        //定义布尔值蛇头
        public bool Ishead
        {
            get { return _ishead; }
            set { _ishead = value; }
        }
        //蛇块编号
        public int BlockNumber { get; set; }
        //蛇左上角位置
        public Point Origin { get; set; }
        //指定位置画蛇块
        public void ShowBlock(Graphics g)
        {//画出椭圆
            g.FillEllipse(new SolidBrush(Color.AliceBlue),Origin.X,Origin.Y,15,15);
        }
        public void UnShowBlock(Graphics g)
        {
            //填充
            SolidBrush brush = new SolidBrush(Color.LightBlue);
            g.FillRectangle(brush, Origin.X, Origin.Y, 15, 15);
        }
    }
}