贪吃蛇大作战单人版完整代码以及详细解释

贪吃蛇大作战单人版完整代码以及详细解释
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";
[csharp] view plain copy

print ?
            {

                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：
[csharp] view plain copy

print ?
1. using System;
2. using System.Collections.Generic;
3. using System.Windows;
4. using System.Windows.Controls;
5. using System.Windows.Input;
6. using System.Windows.Media;
7. using System.Windows.Threading;
9. namespace 贪吃蛇1._0
10. {
11. /// <summary>
12. /// MainWindow.xaml 的交互逻辑
13. /// </summary>
14. public partial class MainWindow : Window
15. {
16. public MainWindow()
17. {
18. InitializeComponent();
19. this.Background = Brushes.Pink;
20. }
21. string str = "";
22. Border bd;
23. DispatcherTimer tm1;
24. Border food;
25. List<Border> snake = new List<Border>();
26. //创建蛇的位置集合
27. List<Border> snakeback = new List<Border>();
28. List<Border> foodback = new List<Border>();
29. Random ra = new Random();
30. private void Window_Loaded(object sender, RoutedEventArgs e)
31. {
32. this.Left = 0;
33. this.Top = 0;
34. this.Width = 800;
35. this.Height = 600;
36. for (int i = 0; i < 5; i++)
37. {
38. bd = new Border();
39. bd.Width = bd.Height = 10;
40. bd.CornerRadius = new CornerRadius(5);
41. if (i == 0)
42. bd.Background = Brushes.Red;
43. else
44. bd.Background = Brushes.Black;
45. Canvas.SetTop(bd, 200 + i * bd.Height);
46. Canvas.SetLeft(bd, 200);
47. back.Children.Add(bd);
48. snake.Add(bd);
50. //创建蛇的位置border
51. Border bdback = new Border();
52. bdback.Height = bdback.Width = 10;
53. Canvas.SetTop(bdback, 200 + i * bd.Height);
54. Canvas.SetLeft(bdback, 200);
55. snakeback.Add(bdback);
56. }
58. tm1 = new DispatcherTimer();
59. tm1.Interval = TimeSpan.FromMilliseconds(200);
60. tm1.Tick += Tm1_Tick;
61. tm1.Start();
62. this.KeyDown += MainWindow_KeyDown;
63. for (int i = 0; i < 30; i++)
64. {
65. //创建食物
66. food = new Border();
67. food.Height = food.Width = 10;
68. food.CornerRadius = new CornerRadius(5);
69. Canvas.SetTop(food, ra.Next(60) * 10);
70. Canvas.SetLeft(food, ra.Next(80) * 10);
71. food.Background = Brushes.Orange;
72. back.Children.Add(food);
73. foodback.Add(food);
74. }
75. }
77. private void MainWindow_KeyDown(object sender, KeyEventArgs e)
78. {
79. if (e.Key == Key.Up && str != "d")
80. {
81. str = "up";
82. }
83. if (e.Key == Key.Down && str != "up")
84. {
85. str = "d";
86. }
87. if (e.Key == Key.Left && str != "r")
88. {
89. str = "l";
90. }
91. if (e.Key == Key.Right && str != "l")
92. {
93. str = "r";
94. }
95. }
97. private void Tm1_Tick(object sender, EventArgs e)
98. {
99. if (str == "up")
100. {
101. Canvas.SetTop(snake[0], Canvas.GetTop(snake[0]) - snake[0].Height);
102. run();
103. }
104. if (str == "d")
105. {
106. Canvas.SetTop(snake[0], Canvas.GetTop(snake[0]) + snake[0].Height);
107. run();
108. }
109. if (str == "l")
110. {
111. Canvas.SetLeft(snake[0], Canvas.GetLeft(snake[0]) - snake[0].Height);
112. run();
113. }
114. if (str == "r")
115. {
116. Canvas.SetLeft(snake[0], Canvas.GetLeft(snake[0]) + snake[0].Height);
117. run();
118. }
119. for (int i = 0; i < 30; i++)
120. {
121. if (Canvas.GetTop(snake[0]) == Canvas.GetTop(foodback[i]) && Canvas.GetLeft(snake[0]) == Canvas.GetLeft(foodback[i]))
122. {
123. Canvas.SetTop(foodback[i], ra.Next(60) * 10);
124. Canvas.SetLeft(foodback[i], ra.Next(80) * 10);
125. //定义一个增加的蛇尾的border
126. Border bdfood = new Border();
127. bdfood.Height = bdfood.Width = 10;
128. bdfood.CornerRadius = new CornerRadius(5);
129. bdfood.Background = Brushes.Black;
130. Canvas.SetTop(bdfood, Canvas.GetTop(snake[snake.Count - 1]));
131. Canvas.SetLeft(bdfood, Canvas.GetLeft(snake[snake.Count - 1]));
132. back.Children.Add(bdfood);
133. snake.Add(bdfood);
135. //定义一个border存储增加的的集合
136. Border br = new Border();
137. br.Height = br.Width = 10;
138. Canvas.SetTop(br, Canvas.GetTop(snakeback[snakeback.Count - 1]));
139. Canvas.SetLeft(br, Canvas.GetLeft(snakeback[snakeback.Count - 1]));
140. snakeback.Add(br);
141. }
142. }
143. for (int i = 1; i < snake.Count; i++)
144. {
145. if (Canvas.GetTop(snake[0]) == Canvas.GetTop(snake[i]) && Canvas.GetLeft(snake[0]) == Canvas.GetLeft(snake[i]))
146. {
147. tm1.Stop();
148. MessageBox.Show("GAME OVER!");
149. }
150. }
151. if (Canvas.GetTop(snake[0]) == 0 || Canvas.GetTop(snake[0]) == 560 || Canvas.GetLeft(snake[0]) == 0 || Canvas.GetLeft(snake[0]) == 790)
152. {
153. tm1.Stop();
154. MessageBox.Show("GAME OVER!");
155. }
156. }
158. private void run()
159. {
160. for (int i = 1; i < snake.Count; i++)
161. {
162. Canvas.SetTop(snake[i], Canvas.GetTop(snakeback[i - 1]));
163. Canvas.SetLeft(snake[i], Canvas.GetLeft(snakeback[i - 1]));
164. }
165. for (int i = 0; i < snake.Count; i++)
166. {
167. Canvas.SetTop(snakeback[i], Canvas.GetTop(snake[i]));
168. Canvas.SetLeft(snakeback[i], Canvas.GetLeft(snake[i]));
169. }
170. }
171. }
172. }
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原文地址：https://www.cnblogs.com/wjrelax/p/8035054.html