first commit

TempleRun/GameForm.cs

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+using System.Diagnostics;
+using System.Drawing.Drawing2D;
+
+namespace TempleRun;
+
+/// <summary>
+/// 主窗体：负责游戏循环（定时器 + 高精度计时）、键盘输入、双缓冲绘制调度。
+/// </summary>
+public class GameForm : Form
+{
+    private readonly GameWorld _world = new();
+    private readonly System.Windows.Forms.Timer _timer;
+    private readonly Stopwatch _watch = Stopwatch.StartNew();
+
+    private double _lastTime;
+    private double _fpsAccum;
+    private int _frameCount;
+    private bool _showFps;
+
+    public GameForm()
+    {
+        Text = "神庙逃亡 · Temple Run (WinForms)";
+        ClientSize = new Size(1024, 720);
+        MinimumSize = new Size(760, 540);
+        StartPosition = FormStartPosition.CenterScreen;
+        BackColor = Color.FromArgb(12, 12, 20);
+        DoubleBuffered = true;
+        ResizeRedraw = true;
+        AutoScaleMode = AutoScaleMode.None;
+        SetStyle(ControlStyles.AllPaintingInWmPaint
+               | ControlStyles.UserPaint
+               | ControlStyles.OptimizedDoubleBuffer, true);
+
+        try { Icon = BuildIcon(); } catch { /* 图标失败不影响运行 */ }
+
+        _lastTime = _watch.Elapsed.TotalSeconds;
+
+        _timer = new System.Windows.Forms.Timer { Interval = 15 };   // ≈66Hz
+        _timer.Tick += OnTick;
+        _timer.Start();
+    }
+
+    // ------------------------------------------------------------------ 主循环
+    private void OnTick(object sender, EventArgs e)
+    {
+        double now = _watch.Elapsed.TotalSeconds;
+        float dt = (float)(now - _lastTime);
+        _lastTime = now;
+
+        if (dt <= 0f) return;
+        if (dt > 0.06f) dt = 0.06f;      // 卡顿/拖动窗口后不产生穿模
+
+        // FPS 统计
+        _frameCount++;
+        _fpsAccum += dt;
+        if (_fpsAccum >= 0.5)
+        {
+            _world.Fps = (float)(_frameCount / _fpsAccum);
+            _frameCount = 0;
+            _fpsAccum = 0;
+        }
+
+        _world.Update(dt);
+        Invalidate();
+    }
+
+    protected override void OnPaint(PaintEventArgs e)
+    {
+        GameRenderer.Draw(e.Graphics, ClientSize.Width, ClientSize.Height, _world, _showFps);
+    }
+
+    // ------------------------------------------------------------------ 输入
+    protected override bool ProcessCmdKey(ref Message msg, Keys keyData)
+    {
+        Keys key = keyData & Keys.KeyCode;
+
+        if (key == Keys.F1) { _showFps = !_showFps; Invalidate(); return true; }
+        if (key == Keys.F11)
+        {
+            WindowState = WindowState == FormWindowState.Maximized
+                ? FormWindowState.Normal : FormWindowState.Maximized;
+            return true;
+        }
+        if (key == Keys.F12) { _world.Muted = !_world.Muted; return true; }
+
+        if (_world.HandleKey(key)) return true;
+
+        return base.ProcessCmdKey(ref msg, keyData);
+    }
+
+    protected override void OnMouseClick(MouseEventArgs e)
+    {
+        base.OnMouseClick(e);
+        // 鼠标左键也能触发"开始/重开"，方便触屏设备
+        if (e.Button == MouseButtons.Left)
+        {
+            if (_world.State == RunState.Ready) _world.Start();
+            else if (_world.State == RunState.GameOver && _world.CanRestart)
+            {
+                _world.Start();
+            }
+        }
+    }
+
+    protected override void OnFormClosed(FormClosedEventArgs e)
+    {
+        _timer.Stop();
+        _timer.Dispose();
+        GameRenderer.ResetCache();
+        base.OnFormClosed(e);
+    }
+
+    // ------------------------------------------------------------------ 图标
+    private static Icon BuildIcon()
+    {
+        using var bmp = new Bitmap(32, 32);
+        using (var g = Graphics.FromImage(bmp))
+        {
+            g.SmoothingMode = SmoothingMode.AntiAlias;
+            g.Clear(Color.Transparent);
+            using (var bg = new SolidBrush(Color.FromArgb(46, 34, 28)))
+                g.FillEllipse(bg, 0, 0, 31, 31);
+            using (var gold = new SolidBrush(Cfg.Gold))
+                g.FillEllipse(gold, 7, 7, 18, 18);
+            using (var dark = new Pen(Cfg.GoldDark, 2.4f))
+                g.DrawEllipse(dark, 7, 7, 18, 18);
+            using (var hi = new SolidBrush(Color.FromArgb(230, 255, 250, 220)))
+                g.FillEllipse(hi, 11, 10, 5, 4);
+        }
+        return Icon.FromHandle(bmp.GetHicon());
+    }
+}