Add novel throttle experiment (locked behind build flag for now)

:)

src/BizHawk.Client.Common/Controller.cs

@@ -48,6 +48,11 @@ namespace BizHawk.Client.Common
 
 		private readonly Dictionary<string, FeedbackBind> _feedbackBindings = new Dictionary<string, FeedbackBind>();
 
+#if BIZHAWKBUILD_SUPERHAWK
+		public bool AnyInputHeld
+			=> _buttons.ContainsValue(true) || _axes.Any(kvp => kvp.Value != _axisRanges[kvp.Key].Neutral);
+#endif
+
 		public bool this[string button] => IsPressed(button);
 
 		// Looks for bindings which are activated by the supplied physical button.

src/BizHawk.Client.Common/config/Config.cs

@@ -203,6 +203,9 @@ namespace BizHawk.Client.Common
 		public bool Unthrottled { get; set; } = false;
 		public bool AutoMinimizeSkipping { get; set; } = true;
 		public bool VSyncThrottle { get; set; } = false;
+#if BIZHAWKBUILD_SUPERHAWK
+		public bool SuperHawkThrottle { get; set; } = false;
+#endif
 
 		public RewindConfig Rewind { get; set; } = new RewindConfig();
 

src/BizHawk.Client.EmuHawk/MainForm.cs

@@ -75,6 +75,15 @@ namespace BizHawk.Client.EmuHawk
 				}
 			}
 
+#if BIZHAWKBUILD_SUPERHAWK
+			ToolStripMenuItemEx superHawkThrottleMenuItem = new() { Text = "SUPER·HAWK" };
+			superHawkThrottleMenuItem.Click += (_, _) => Config.SuperHawkThrottle = !Config.SuperHawkThrottle;
+			SpeedSkipSubMenu.DropDownItems.Insert(
+				SpeedSkipSubMenu.DropDownItems.IndexOf(MinimizeSkippingMenuItem),
+				superHawkThrottleMenuItem);
+			ConfigSubMenu.DropDownOpened += (_, _) => superHawkThrottleMenuItem.Checked = Config.SuperHawkThrottle;
+#endif
+
 			foreach (var (appliesTo, coreNames) in Config.CorePickerUIData)
 			{
 				var submenu = new ToolStripMenuItem { Text = string.Join(" | ", appliesTo) };
@@ -2976,7 +2985,11 @@ namespace BizHawk.Client.EmuHawk
 				_frameAdvanceTimestamp = 0;
 			}
 
+#if BIZHAWKBUILD_SUPERHAWK
+			if (!EmulatorPaused && (!Config.SuperHawkThrottle || InputManager.ClientControls.AnyInputHeld))
+#else
 			if (!EmulatorPaused)
+#endif
 			{
 				runFrame = true;
 			}