贪吃蛇大作战单人版完整版代码以及详解
贪吃蛇总结：
1. 创建WPF应用程序
2. 添加Canvas标签。Name=back；
3. 添加loaded事件
4. 在loaded事件中创建蛇（设置蛇的位置，大小，颜色）
this.Left = 0;
this.Top = 0;
this.Width = 800;
this.Height = 600;
for (int i = 0; i < 5; i++)
{
bd = new Border();
bd.Width = bd.Height = 10;
bd.CornerRadius = new CornerRadius(5);
if (i == 0)
bd.Background = Brushes.Red;
else
bd.Background = Brushes.Black;
Canvas.SetTop(bd,200+i*bd.Height);
Canvas.SetLeft(bd,200);
back.Children.Add(bd);
snake.Add(bd);
5. 添加一个timer，（问题：添加timer和winform程序中不一样
Winform 程序中直接添加。
WPF应用程序中不能直接添加，需要引入命名空间：
Using System.Thearing
）
DispatcherTimer tm1 = new DispatcherTimer();
tm1.Interval =TimeSpan.FromMilliseconds(200);
tm1.Tick += Tm1_Tick;
tm1.Start();
this.KeyDown += MainWindow_KeyDown;
6. 添加键盘事件，读取键盘敲下的字符
if (e.Key==Key.Up&&str!="d" )
{
str = "up";
}
if (e.Key==Key.Down&&str!="up")
{
str = "d";
{
str = "l";
}
if (e.Key == Key.Right&&str!="l")
{
str = "r";
}
7.在timer事件中实现蛇的移动（问题：在实现向左移动时出现错误
解决：添加一个集合，来存储蛇的位置信息，与此同时添加一个border储存位置信息border）
//创建蛇的位置集合
List<Border> snakeback =new List<Border>();
//创建蛇的位置border
Border bdback = new Border();
bdback.Height = bdback.Width = 10;
Canvas.SetTop(bdback, 200 + i * bd.Height);
Canvas.SetLeft(bdback, 200);
snakeback.Add(bdback);
if (str == "up")
{
Canvas.SetTop(snake[0],Canvas.GetTop(snake[0]) - snake[0].Height);
run();
}
if (str=="d")
{
Canvas.SetTop(snake[0],Canvas.GetTop(snake[0])+ snake[0].Height);
run();
}
if (str == "l")
{
Canvas.SetLeft(snake[0],Canvas.GetLeft(snake[0]) - snake[0].Height);
run();
}
if (str == "r")
{
Canvas.SetLeft(snake[0],Canvas.GetLeft(snake[0]) + snake[0].Height);
run();
}
private void run()
{
for (int i = 1; i < snake.Count; i++)
{
Canvas.SetTop(snake[i],Canvas.GetTop(snakeback[i - 1]));
Canvas.SetLeft(snake[i],Canvas.GetLeft(snakeback[i - 1]));
}
for (int i = 0; i < snake.Count; i++)
{
Canvas.SetTop(snakeback[i],Canvas.GetTop(snake[i]));
Canvas.SetLeft(snakeback[i],Canvas.GetLeft(snake[i]));
}
}
8. 判断与食物相撞时，食物改变位置
if (Canvas.GetTop(snake[0])==Canvas.GetTop(food)&&Canvas.GetLeft(snake[0])==Canvas.GetLeft(food))
{
Canvas.SetTop(food, ra.Next(60) * 10);
Canvas.SetLeft(food, ra.Next(80) * 10);
}
9. 在与食物相撞时添加一节蛇尾
10. 添加一个border来作为蛇尾，添加到snake集合中
11. 添加一个border存储所增加的蛇尾的位置信息
if (Canvas.GetTop(snake[0])==Canvas.GetTop(food)&&Canvas.GetLeft(snake[0])==Canvas.GetLeft(food))
{
Canvas.SetTop(food, ra.Next(60) * 10);
Canvas.SetLeft(food, ra.Next(80) * 10);
//定义一个增加的蛇尾的border
Border bdfood = new Border();
bdfood.Height = bdfood.Width = 10;
bdfood.CornerRadius = new CornerRadius(5);
bdfood.Background = Brushes.Azure;
Canvas.SetTop(bdfood,Canvas.GetTop(snake[snake.Count-1]));
Canvas.SetLeft(bdfood,Canvas.GetLeft(snake[snake.Count - 1]));
back.Children.Add(bdfood);
snake.Add(bdfood);
//定义一个border存储增加的的集合
Border br = new Border();
br.Height = br.Width = 10;
Canvas.SetTop(br, Canvas.GetTop(snakeback[snakeback.Count - 1]));
Canvas.SetLeft(br, Canvas.GetLeft(snakeback[snakeback.Count - 1]));
snakeback.Add(br);
}
12.判断蛇与面板四周相撞或者蛇撞到自己，游戏结束。
for (int i = 1; i < snake.Count; i++)
{
if (Canvas.GetTop(snake[0]) ==Canvas.GetTop(snake[i]) && Canvas.GetLeft(snake[0]) == Canvas.GetLeft(snake[i]))
{
tm1.Stop();
MessageBox.Show("GAME OVER!");
}
}
if (Canvas.GetTop(snake[0]) == 0 ||Canvas.GetTop(snake[0]) == 560 || Canvas.GetLeft(snake[0]) == 0 || Canvas.GetLeft(snake[0]) == 790)
{
tm1.Stop();
MessageBox.Show("GAME OVER!");
}
完整版代码：
using System;
using System.Collections.Generic;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Threading;
namespace 贪吃蛇1._0
{
///
/// MainWindow.xaml 的交互逻辑
///
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
this.Background = Brushes.Pink;
}
string str = "";
Border bd;
DispatcherTimer tm1;
Border food;
List snake = new List();
//创建蛇的位置集合
List snakeback = new List();
List foodback = new List();
Random ra = new Random();
private void Window_Loaded(object sender, RoutedEventArgs e)
{
this.Left = 0;
this.Top = 0;
this.Width = 800;
this.Height = 600;
for (int i = 0; i < 5; i++)
{
bd = new Border();
bd.Width = bd.Height = 10;
bd.CornerRadius = new CornerRadius(5);
if (i == 0)
bd.Background = Brushes.Red;
else
bd.Background = Brushes.Black;
Canvas.SetTop(bd, 200 + i * bd.Height);
Canvas.SetLeft(bd, 200);
back.Children.Add(bd);
snake.Add(bd);
//创建蛇的位置border
Border bdback = new Border();
bdback.Height = bdback.Width = 10;
Canvas.SetTop(bdback, 200 + i * bd.Height);
Canvas.SetLeft(bdback, 200);
snakeback.Add(bdback);
}
tm1 = new DispatcherTimer();
tm1.Interval = TimeSpan.FromMilliseconds(200);
tm1.Tick += Tm1_Tick;
tm1.Start();
this.KeyDown += MainWindow_KeyDown;
for (int i = 0; i < 30; i++)
{
//创建食物
food = new Border();
food.Height = food.Width = 10;
food.CornerRadius = new CornerRadius(5);
Canvas.SetTop(food, ra.Next(60) * 10);
Canvas.SetLeft(food, ra.Next(80) * 10);
food.Background = Brushes.Orange;
back.Children.Add(food);
foodback.Add(food);
}
}
private void MainWindow_KeyDown(object sender, KeyEventArgs e)
{
if (e.Key == Key.Up && str != "d")
{
str = "up";
}
if (e.Key == Key.Down && str != "up")
{
str = "d";
}
if (e.Key == Key.Left && str != "r")
{
str = "l";
}
if (e.Key == Key.Right && str != "l")
{
str = "r";
}
}
private void Tm1_Tick(object sender, EventArgs e)
{
if (str == "up")
{
Canvas.SetTop(snake[0], Canvas.GetTop(snake[0]) - snake[0].Height);
run();
}
if (str == "d")
{
Canvas.SetTop(snake[0], Canvas.GetTop(snake[0]) + snake[0].Height);
run();
}
if (str == "l")
{
Canvas.SetLeft(snake[0], Canvas.GetLeft(snake[0]) - snake[0].Height);
run();
}
if (str == "r")
{
Canvas.SetLeft(snake[0], Canvas.GetLeft(snake[0]) + snake[0].Height);
run();
}
for (int i = 0; i < 30; i++)
{
if (Canvas.GetTop(snake[0]) == Canvas.GetTop(foodback[i]) && Canvas.GetLeft(snake[0]) == Canvas.GetLeft(foodback[i]))
{
Canvas.SetTop(foodback[i], ra.Next(60) * 10);
Canvas.SetLeft(foodback[i], ra.Next(80) * 10);
//定义一个增加的蛇尾的border
Border bdfood = new Border();
bdfood.Height = bdfood.Width = 10;
bdfood.CornerRadius = new CornerRadius(5);
bdfood.Background = Brushes.Black;
Canvas.SetTop(bdfood, Canvas.GetTop(snake[snake.Count - 1]));
Canvas.SetLeft(bdfood, Canvas.GetLeft(snake[snake.Count - 1]));
back.Children.Add(bdfood);
snake.Add(bdfood);
//定义一个border存储增加的的集合
Border br = new Border();
br.Height = br.Width = 10;
Canvas.SetTop(br, Canvas.GetTop(snakeback[snakeback.Count - 1]));
Canvas.SetLeft(br, Canvas.GetLeft(snakeback[snakeback.Count - 1]));
snakeback.Add(br);
}
}
for (int i = 1; i < snake.Count; i++)
{
if (Canvas.GetTop(snake[0]) == Canvas.GetTop(snake[i]) && Canvas.GetLeft(snake[0]) == Canvas.GetLeft(snake[i]))
{
tm1.Stop();
MessageBox.Show("GAME OVER!");
}
}
if (Canvas.GetTop(snake[0]) == 0 || Canvas.GetTop(snake[0]) == 560 || Canvas.GetLeft(snake[0]) == 0 || Canvas.GetLeft(snake[0]) == 790)
{
tm1.Stop();
MessageBox.Show("GAME OVER!");
}
}
private void run()
{
for (int i = 1; i < snake.Count; i++)
{
Canvas.SetTop(snake[i], Canvas.GetTop(snakeback[i - 1]));
Canvas.SetLeft(snake[i], Canvas.GetLeft(snakeback[i - 1]));
}
for (int i = 0; i < snake.Count; i++)
{
Canvas.SetTop(snakeback[i], Canvas.GetTop(snake[i]));
Canvas.SetLeft(snakeback[i], Canvas.GetLeft(snake[i]));
}
}
}
}