说明：
forms实现贪吃蛇
效果图：
step1:C:\Users\wangrusheng\RiderProjects\WinFormsApp2\WinFormsApp2\Form1.cs
namespace WinFormsApp2
{public partial class Form1 : Form{// 游戏配置常量private const int GridSize = 20;private const int CanvasSize = 400;// 游戏核心组件private readonly System.Windows.Forms.Timer gameTimer = new System.Windows.Forms.Timer();private List<Point> snake = new List<Point>();private Point food;private Direction currentDirection = Direction.Right;private int score = 0;private bool isPaused = false;// UI控件private PictureBox canvas;private Label lblScore;private Button btnPause;private Button btnReset;private enum Direction { Up, Down, Left, Right }// 新增方向按钮控件private Button btnUp;private Button btnDown;private Button btnLeft;private Button btnRight;public Form1(){InitializeComponent();CreateGameUI();InitializeGame();SetupTimer();this.KeyPreview = true;this.ClientSize = new Size(600, 500); // 扩大窗体尺寸}private void CreateGameUI(){// 创建画布canvas = new PictureBox{BackColor = Color.FromArgb(26, 27, 38),Size = new Size(CanvasSize, CanvasSize),Location = new Point(20, 50)};canvas.Paint += Canvas_Paint;// 分数显示lblScore = new Label{Text = $"Score: {score}",AutoSize = true,ForeColor = Color.White,Font = new Font("Microsoft Sans Serif", 12),Location = new Point(20, 15)};// 暂停按钮btnPause = new Button{Text = "暂停",Size = new Size(75, 30),Location = new Point(300, 12)};btnPause.Click += BtnPause_Click;// 重置按钮btnReset = new Button{Text = "重置",Size = new Size(75, 30),Location = new Point(380, 12)};btnReset.Click += BtnReset_Click;// 新增方向按钮int buttonSize = 50;int startX = CanvasSize + 40; // 画布右侧int startY = 150;btnUp = new Button{Text = "↑",Size = new Size(buttonSize, buttonSize),Location = new Point(startX + buttonSize, startY),Font = new Font("Arial", 16),FlatStyle = FlatStyle.Flat,BackColor = Color.FromArgb(60, 60, 80)};btnUp.Click += BtnUp_Click;btnUp.FlatAppearance.BorderSize = 0;btnDown = new Button{Text = "↓",Size = new Size(buttonSize, buttonSize),Location = new Point(startX + buttonSize, startY + buttonSize + 10),Font = new Font("Arial", 16),FlatStyle = FlatStyle.Flat,BackColor = Color.FromArgb(60, 60, 80)};btnDown.Click += BtnDown_Click;btnDown.FlatAppearance.BorderSize = 0;btnLeft = new Button{Text = "←",Size = new Size(buttonSize, buttonSize),Location = new Point(startX, startY + buttonSize),Font = new Font("Arial", 16),FlatStyle = FlatStyle.Flat,BackColor = Color.FromArgb(60, 60, 80)};btnLeft.Click += BtnLeft_Click;btnLeft.FlatAppearance.BorderSize = 0;btnRight = new Button{Text = "→",Size = new Size(buttonSize, buttonSize),Location = new Point(startX + buttonSize * 2, startY + buttonSize),Font = new Font("Arial", 16),FlatStyle = FlatStyle.Flat,BackColor = Color.FromArgb(60, 60, 80)};btnRight.Click += BtnRight_Click;btnRight.FlatAppearance.BorderSize = 0;// 添加新控件到窗体Controls.AddRange(new Control[] { btnUp, btnDown, btnLeft, btnRight });// 添加控件到窗体Controls.AddRange(new Control[] { canvas, lblScore, btnPause, btnReset });}// 新增方向按钮事件处理private void BtnUp_Click(object sender, EventArgs e){if (currentDirection != Direction.Down)currentDirection = Direction.Up;}private void BtnDown_Click(object sender, EventArgs e){if (currentDirection != Direction.Up)currentDirection = Direction.Down;}private void BtnLeft_Click(object sender, EventArgs e){if (currentDirection != Direction.Right)currentDirection = Direction.Left;}private void BtnRight_Click(object sender, EventArgs e){if (currentDirection != Direction.Left)currentDirection = Direction.Right;}private void InitializeGame(){snake.Clear();snake.Add(new Point(10, 10));GenerateFood();score = 0;lblScore.Text = $"Score: {score}";currentDirection = Direction.Right;}private void SetupTimer(){gameTimer.Interval = 200; //控制蛇的速度 speedgameTimer.Tick += GameLoop;gameTimer.Start();}// 以下是游戏逻辑方法（保持原有实现）private void GenerateFood(){var random = new Random();do{food = new Point(random.Next(0, CanvasSize / GridSize),random.Next(0, CanvasSize / GridSize));} while (snake.Contains(food));}private void GameLoop(object sender, EventArgs e){if (isPaused) return;var head = snake[0];var newHead = new Point(head.X, head.Y);switch (currentDirection){case Direction.Up: newHead.Y--; break;case Direction.Down: newHead.Y++; break;case Direction.Left: newHead.X--; break;case Direction.Right: newHead.X++; break;}if (CheckCollision(newHead)){gameTimer.Stop();MessageBox.Show($"Game Over! Score: {score}");InitializeGame();gameTimer.Start();return;}snake.Insert(0, newHead);if (newHead == food){score++;lblScore.Text = $"Score: {score}";gameTimer.Interval = Math.Max(50, gameTimer.Interval - 2);GenerateFood();}else{snake.RemoveAt(snake.Count - 1);}canvas.Invalidate();}private bool CheckCollision(Point position){if (position.X < 0 || position.X >= CanvasSize / GridSize ||position.Y < 0 || position.Y >= CanvasSize / GridSize)return true;for (int i = 1; i < snake.Count; i++){if (snake[i] == position)return true;}return false;}// 渲染和输入处理private void Canvas_Paint(object sender, PaintEventArgs e){var g = e.Graphics;g.Clear(Color.FromArgb(0x1a, 0x1b, 0x26));// 绘制食物using (var brush = new SolidBrush(Color.FromArgb(0xf7, 0x76, 0x8e))){DrawRoundedRectangle(g, brush, food.X * GridSize + 2, food.Y * GridSize + 2, 16, 16, 4);}// 绘制蛇for (int i = 0; i < snake.Count; i++){var color = i == 0 ? Color.FromArgb(0x9e, 0xce, 0x6a) : Color.FromArgb(0x73, 0xda, 0xca);using (var brush = new SolidBrush(color)){int radius = i == 0 ? 6 : 4;DrawRoundedRectangle(g, brush, snake[i].X * GridSize + 2, snake[i].Y * GridSize + 2, 16, 16, radius);}}}private void DrawRoundedRectangle(Graphics g, Brush brush, int x, int y, int width, int height, int radius){using (var path = new System.Drawing.Drawing2D.GraphicsPath()){path.AddArc(x, y, radius, radius, 180, 90);path.AddArc(x + width - radius, y, radius, radius, 270, 90);path.AddArc(x + width - radius, y + height - radius, radius, radius, 0, 90);path.AddArc(x, y + height - radius, radius, radius, 90, 90);path.CloseFigure();g.FillPath(brush, path);}}protected override void OnKeyDown(KeyEventArgs e){base.OnKeyDown(e);switch (e.KeyCode){case Keys.Up when currentDirection != Direction.Down:currentDirection = Direction.Up;break;case Keys.Down when currentDirection != Direction.Up:currentDirection = Direction.Down;break;case Keys.Left when currentDirection != Direction.Right:currentDirection = Direction.Left;break;case Keys.Right when currentDirection != Direction.Left:currentDirection = Direction.Right;break;case Keys.Space:TogglePause();break;}}// 事件处理方法private void BtnPause_Click(object sender, EventArgs e) => TogglePause();private void BtnReset_Click(object sender, EventArgs e){InitializeGame();gameTimer.Interval = 150;isPaused = false;btnPause.Text = "暂停";canvas.Invalidate();}private void TogglePause(){isPaused = !isPaused;btnPause.Text = isPaused ? "继续" : "暂停";}}
}
end