using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;using System.Windows.Threading;using System.Windows;using System.Windows.Controls;using System.Windows.Data;using System.Windows.Documents;using System.Windows.Input;using System.Windows.Media;using System.Windows.Media.Imaging;using System.Windows.Navigation;using System.Windows.Shapes;namespace WPFSnake{    /// 
    /// Interaction logic for MainWindow.xaml    /// 
    public partial class MainWindow : Window    {        private DispatcherTimer timer;        public int bodyCount = 5;        public Direction direct = Direction.Right;        //public BodyCell[] cells;        public List
         
           cells;        public Image food;        public MainWindow()        {            InitializeComponent();        }        private void panel_Loaded(object sender, RoutedEventArgs e)        {        }        private void Window_Loaded_1(object sender, RoutedEventArgs e)        {            cells = new List
          
           ();            for (int i = 0; i < bodyCount; i++)            {                BodyCell cell = new BodyCell();                double left = i * 10;                double top = panel.Height / 2;                Canvas.SetLeft(cell, left);                Canvas.SetTop(cell, top);                //cell.Margin.Top= panel.Height / 2;                cells.Add(cell);                panel.Children.Add(cell);            }            food = new Image();            food.Height = 10;            food.Width = 10;            BitmapImage pic = new BitmapImage(new Uri("Image/bg.jpg", UriKind.Relative));            food.Source = pic;            Random rY = new Random();            double ftop = rY.Next(0, 30) * 10;            Random rX = new Random();            double fleft = rX.Next(0, 30) * 10;            //food.Margin = new Thickness(fleft, ftop, 0, 0);            Canvas.SetTop(food, ftop);            Canvas.SetLeft(food, fleft);            panel.Children.Add(food);            timer = new DispatcherTimer();            timer.Tick += timer_Tick;            timer.Interval = TimeSpan.FromMilliseconds(100);            timer.Start();        }        private void timer_Tick(object sender, EventArgs args)        {            SnakeProcess();            if (GameOver())            {                MessageBox.Show("Game Over.");                timer.Stop();            }        }        private void SnakeProcess()        {            #region  移动            #region 版本1            for (int i = bodyCount - 1; i >= 0; i--)            {                if (cells[i].direct == Direction.Right)                {                    //cells[i].Left += 10;                    Canvas.SetLeft(cells[i], Canvas.GetLeft(cells[i]) + 10);                }                else if (cells[i].direct == Direction.Left)                {                    //cells[i].Left -= 10;                    Canvas.SetLeft(cells[i], Canvas.GetLeft(cells[i]) - 10);                }                else if (cells[i].direct == Direction.Up)                {                    //cells[i].Top -= 10;                    Canvas.SetTop(cells[i], Canvas.GetTop(cells[i]) - 10);                }                else if (cells[i].direct == Direction.Down)                {                    //cells[i].Top += 10;                    Canvas.SetTop(cells[i], Canvas.GetTop(cells[i]) + 10);                }            }            for (int i = 0; i < bodyCount - 1; i++)            {                cells[i].direct = cells[i + 1].direct;            }            #endregion            #region 版本2            //for (int i = bodyCount - 1; i > 0; i--)            //{            //    cells[i - 1] = cells[i];            //}            //if (cells[bodyCount - 1].direct == Direction.Right)            //{            //    cells[bodyCount - 1].Margin.Left += 10;            //}            //else if (cells[bodyCount - 1].direct == Direction.Left)            //{            //    cells[bodyCount - 1].Left -= 10;            //}            //else if (cells[bodyCount - 1].direct == Direction.Up)            //{            //    cells[bodyCount - 1].Top -= 10;            //}            //else if (cells[bodyCount - 1].direct == Direction.Down)            //{            //    cells[bodyCount - 1].Top += 10;            //}            #endregion            #endregion            #region 吃食物            EatFood();            #endregion        }        private bool GameOver()        {            bool isOver = false;            //撞墙            double top = Canvas.GetTop(cells[bodyCount - 1]);            double left = Canvas.GetLeft(cells[bodyCount - 1]);            if (top == 0 && cells[bodyCount - 1].direct == Direction.Up)            {                isOver = true;            }            if (top == 300 && cells[bodyCount - 1].direct == Direction.Down)            {                isOver = true;            }            if (left == 0 && cells[bodyCount - 1].direct == Direction.Left)            {                isOver = true;            }            if (left == 300 && cells[bodyCount - 1].direct == Direction.Right)            {                isOver = true;            }            //撞自己            for (int i = bodyCount - 2; i >= 0; i--)            {                if (Canvas.GetTop(cells[i]) == Canvas.GetTop(cells[bodyCount - 1]) && Canvas.GetLeft(cells[i]) == Canvas.GetLeft(cells[bodyCount - 1]))                {                    isOver = true;                    break;                }            }            return isOver;        }        private void EatFood()        {            BodyCell head = cells[bodyCount - 1];            if (Canvas.GetTop(cells[bodyCount - 1]) == Canvas.GetTop(food) && Canvas.GetLeft(cells[bodyCount - 1]) == Canvas.GetLeft(food))            {                BodyCell cell = new BodyCell();                panel.Children.Add(cell);                cell.direct = head.direct;                if (head.direct == Direction.Up)                {                    //cell.Top = head.Top - 10;                    //cell.Left = head.Left;                    Canvas.SetTop(cell, Canvas.GetTop(head) - 10);                    Canvas.SetLeft(cell, Canvas.GetLeft(head));                }                else if (head.direct == Direction.Down)                {                    //cell.Top = head.Top + 10;                    //cell.Left = head.Left;                    Canvas.SetTop(cell, Canvas.GetTop(head) + 10);                    Canvas.SetLeft(cell, Canvas.GetLeft(head));                }                else if (head.direct == Direction.Left)                {                    //cell.Top = head.Top;                    //cell.Left = head.Left - 10;                    Canvas.SetTop(cell, Canvas.GetTop(head));                    Canvas.SetLeft(cell, Canvas.GetLeft(head) - 10);                }                else if (head.direct == Direction.Right)                {                    //cell.Top = head.Top;                    //cell.Left = head.Left + 10;                    Canvas.SetTop(cell, Canvas.GetTop(head));                    Canvas.SetLeft(cell, Canvas.GetLeft(head) + 10);                }                cells.Add(cell);                bodyCount++;                //lbl_Score.Text = (bodyCount - 5).ToString();                panel.Children.Remove(food);                Random rY = new Random();                //food.Top = rY.Next(0, 30) * 10;                Canvas.SetTop(food, rY.Next(0, 30) * 10);                Random rX = new Random();                //food.Left = rX.Next(0, 30) * 10;                Canvas.SetLeft(food, rX.Next(0, 30) * 10);                panel.Children.Add(food);            }        }        private void Window_KeyDown_1(object sender, KeyEventArgs e)        {            if (e.Key == Key.Up && cells[bodyCount - 1].direct != Direction.Down)            {                //direct = Direction.Up;                cells[bodyCount - 1].direct = Direction.Up;            }            else if (e.Key == Key.Left && cells[bodyCount - 1].direct != Direction.Right)            {                //direct = Direction.Left;                cells[bodyCount - 1].direct = Direction.Left;            }            else if (e.Key == Key.Down && cells[bodyCount - 1].direct != Direction.Up)            {                //direct = Direction.Down;                cells[bodyCount - 1].direct = Direction.Down;            }            else if (e.Key == Key.Right && cells[bodyCount - 1].direct != Direction.Left)            {                //direct = Direction.Right;                cells[bodyCount - 1].direct = Direction.Right;            }            if (e.Key == Key.Space)            {                if (timer.IsEnabled)                {                    timer.Stop();                }                else                {                    timer.Start();                }            }        }    }    public class BodyCell : Image    {        public Direction direct        { get; set; }        public BodyCell()            : base()        {            this.Width = 10;            this.Height = 10;            direct = Direction.Right;            BitmapImage pic = new BitmapImage(new Uri("Image/bg.jpg", UriKind.Relative));            this.Source = pic;                    }    }    public enum Direction    {        Up,        Down,        Left,        Right    }}