C#实现可玩贪吃蛇小游戏：自定义窗体与Timer

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace 贪吃蛇
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        class snake:boxshape
        {
            public bool baixuegongzhu=false;
            private int siwang = 0;
            private Queue<Point> duguo=new Queue<Point>();
            public int sudu = 0;
            public bool eatbug = false;//人工喂养
            public bool endie = true;//蜷住不死
            public bool tuipi = false;//是否能蜕皮
            public int level;//1-10
            public bool situation = true;
            const int maximum=38*38;
            public int direction;

            private int bodylong = 3;//蛇的长度
            public bool keyvalue = true;
            public struct box
            {
                public int x;
                public int y;
                public int direction;
            }
            public box[] Snakebody=new box[maximum];
            Queue<int> addmission = new Queue<int>();
            public void initSnake()//初始化蛇
            {
                int j = 0;
                add.Clear(Color.White);
                for (int i = 6; i >= 3&&j<bodylong; i--,j++)
                {
                    Snakebody[j].x = i;
                    Snakebody[j].y = 2;
                    Snakebody[j].direction = 2;
                }
                direction = Snakebody[0].direction;
                printf();
                mapsetting();
            }
            public void xiaochuduguo()
            {
                if(duguo.Count!=0)
                {
                    Point di = duguo.Dequeue();
                    add.FillRectangle(new SolidBrush(Color.White),di.X * (2 + width), di.Y * (2 + heigh), width, heigh);