Inputs.AnyPressed implementation

src/Input/ButtonIdentifier.cs

@@ -1,7 +1,7 @@
 namespace MoonWorks.Input
 {
     // Blittable identifier that can be used for button state lookups.
-    public struct ButtonIdentifier
+    public struct ButtonIdentifier : System.IEquatable<ButtonIdentifier>
     {
         public DeviceKind DeviceKind { get; }
         public int Index { get; } // 1-4 for gamepads, 0 otherwise
@@ -27,5 +27,33 @@ namespace MoonWorks.Input
 			Index = 0;
 			Code = (int) mouseCode;
 		}
+
+		public override int GetHashCode()
+		{
+			return System.HashCode.Combine(DeviceKind, Index, Code);
+		}
+
+		public override bool Equals(object obj)
+		{
+			return obj is ButtonIdentifier identifier && Equals(identifier);
+		}
+
+		public bool Equals(ButtonIdentifier identifier)
+		{
+			return
+				DeviceKind == identifier.DeviceKind &&
+				Index == identifier.Index &&
+				Code == identifier.Code;
+		}
+
+		public static bool operator ==(ButtonIdentifier a, ButtonIdentifier b)
+		{
+			return a.Equals(b);
+		}
+
+		public static bool operator !=(ButtonIdentifier a, ButtonIdentifier b)
+		{
+			return !(a == b);
+		}
 	}
 }

src/Input/DeviceKind.cs

@@ -2,8 +2,9 @@ namespace MoonWorks.Input
 {
     public enum DeviceKind
     {
+		None,
         Keyboard,
         Mouse,
-        Gamepad
+        Gamepad,
     }
 }

src/Input/Gamepad.cs

@@ -36,6 +36,9 @@ namespace MoonWorks.Input
 
 		public bool IsDummy => Handle == IntPtr.Zero;
 
+		public bool AnyPressed { get; private set; }
+		public ButtonCode AnyPressedButtonCode { get; private set; }
+
 		private Dictionary<SDL.SDL_GameControllerButton, Button> EnumToButton;
 		private Dictionary<SDL.SDL_GameControllerAxis, Axis> EnumToAxis;
 		private Dictionary<SDL.SDL_GameControllerAxis, Trigger> EnumToTrigger;
@@ -45,6 +48,8 @@ namespace MoonWorks.Input
 			Handle = handle;
 			Index = index;
 
+			AnyPressed = false;
+
 			EnumToButton = new Dictionary<SDL.SDL_GameControllerButton, Button>
 			{
 				{ SDL.SDL_GameControllerButton.SDL_CONTROLLER_BUTTON_A, A },
@@ -81,11 +86,20 @@ namespace MoonWorks.Input
 
 		internal void Update()
 		{
+			AnyPressed = false;
+
 			if (!IsDummy)
 			{
 				foreach (var (sdlEnum, button) in EnumToButton)
 				{
-					button.Update(CheckPressed(sdlEnum));
+					var pressed = CheckPressed(sdlEnum);
+					button.Update(pressed);
+
+					if (button.IsPressed)
+					{
+						AnyPressed = true;
+						AnyPressedButtonCode = (ButtonCode) sdlEnum;
+					}
 				}
 
 				foreach (var (sdlEnum, axis) in EnumToAxis)

src/Input/Input.cs

@@ -14,6 +14,9 @@ namespace MoonWorks.Input
 
 		public static event Action<char> TextInput;
 
+		public bool AnyPressed { get; private set; }
+		public ButtonIdentifier AnyPressedButton { get; private set; }
+
 		internal Inputs()
 		{
 			Keyboard = new Keyboard();
@@ -37,13 +40,34 @@ namespace MoonWorks.Input
 		// Assumes that SDL_PumpEvents has been called!
 		internal void Update()
 		{
+			AnyPressed = false;
+
 			Mouse.Wheel = 0;
 			Keyboard.Update();
+
+			if (Keyboard.AnyPressed)
+			{
+				AnyPressed = true;
+				AnyPressedButton = new ButtonIdentifier(Keyboard.AnyPressedKeyCode);
+			}
+
 			Mouse.Update();
 
+			if (Mouse.AnyPressed)
+			{
+				AnyPressed = true;
+				AnyPressedButton = new ButtonIdentifier(Mouse.AnyPressedButtonCode);
+			}
+
 			foreach (var gamepad in gamepads)
 			{
 				gamepad.Update();
+
+				if (gamepad.AnyPressed)
+				{
+					AnyPressed = true;
+					AnyPressedButton = new ButtonIdentifier(gamepad, gamepad.AnyPressedButtonCode);
+				}
 			}
 		}
 
@@ -72,6 +96,10 @@ namespace MoonWorks.Input
 			{
 				return Mouse.ButtonState((MouseButtonCode) identifier.Code);
 			}
+			else if (identifier.DeviceKind == DeviceKind.None)
+			{
+				return new ButtonState(ButtonStatus.Released);
+			}
 			else
 			{
 				throw new System.ArgumentException("Invalid button identifier!");

src/Input/Keyboard.cs

@@ -7,6 +7,9 @@ namespace MoonWorks.Input
 {
 	public class Keyboard
 	{
+		public bool AnyPressed { get; private set; }
+		public KeyCode AnyPressedKeyCode { get; private set; }
+
 		private Button[] Keys { get; }
 		private int numKeys;
 
@@ -45,14 +48,16 @@ namespace MoonWorks.Input
 
 		internal void Update()
 		{
+			AnyPressed = false;
+
 			IntPtr keyboardState = SDL.SDL_GetKeyboardState(out _);
 
 			foreach (int keycode in Enum.GetValues(typeof(KeyCode)))
 			{
-				var keyDown = Marshal.ReadByte(keyboardState, keycode);
-				Keys[keycode].Update(Conversions.ByteToBool(keyDown));
+				var keyDown = Conversions.ByteToBool(Marshal.ReadByte(keyboardState, keycode));
+				Keys[keycode].Update(keyDown);
 
-				if (Conversions.ByteToBool(keyDown))
+				if (keyDown)
 				{
 					if (TextInputBindings.TryGetValue((KeyCode) keycode, out var textIndex))
 					{
@@ -63,6 +68,12 @@ namespace MoonWorks.Input
 						Inputs.OnTextInput(TextInputCharacters[6]);
 					}
 				}
+
+				if (Keys[keycode].IsPressed)
+				{
+					AnyPressed = true;
+					AnyPressedKeyCode = (KeyCode) keycode;
+				}
 			}
 		}
 

src/Input/Mouse.cs

@@ -16,6 +16,9 @@ namespace MoonWorks.Input
 
 		public int Wheel { get; internal set; }
 
+		public bool AnyPressed { get; private set; }
+		public MouseButtonCode AnyPressedButtonCode { get; private set; }
+
 		private bool relativeMode;
 		public bool RelativeMode
 		{
@@ -32,6 +35,7 @@ namespace MoonWorks.Input
 		}
 
 		private readonly Dictionary<MouseButtonCode, Button> CodeToButton;
+		private readonly Dictionary<uint, MouseButtonCode> MaskToButtonCode;
 
 		public Mouse()
 		{
@@ -41,10 +45,19 @@ namespace MoonWorks.Input
 				{ MouseButtonCode.Right, RightButton },
 				{ MouseButtonCode.Middle, MiddleButton }
 			};
+
+			MaskToButtonCode = new Dictionary<uint, MouseButtonCode>
+			{
+				{ SDL.SDL_BUTTON_LMASK, MouseButtonCode.Left },
+				{ SDL.SDL_BUTTON_MMASK, MouseButtonCode.Middle },
+				{ SDL.SDL_BUTTON_RMASK, MouseButtonCode.Right }
+			};
 		}
 
 		internal void Update()
 		{
+			AnyPressed = false;
+
 			var buttonMask = SDL.SDL_GetMouseState(out var x, out var y);
 			var _ = SDL.SDL_GetRelativeMouseState(out var deltaX, out var deltaY);
 
@@ -53,9 +66,18 @@ namespace MoonWorks.Input
 			DeltaX = deltaX;
 			DeltaY = deltaY;
 
-			LeftButton.Update(IsPressed(buttonMask, SDL.SDL_BUTTON_LMASK));
-			MiddleButton.Update(IsPressed(buttonMask, SDL.SDL_BUTTON_MMASK));
-			RightButton.Update(IsPressed(buttonMask, SDL.SDL_BUTTON_RMASK));
+			foreach (var (mask, buttonCode) in MaskToButtonCode)
+			{
+				var pressed = IsPressed(buttonMask, mask);
+				var button = CodeToButton[buttonCode];
+				button.Update(pressed);
+
+				if (button.IsPressed)
+				{
+					AnyPressed = true;
+					AnyPressedButtonCode = buttonCode;
+				}
+			}
 		}
 
 		public ButtonState ButtonState(MouseButtonCode buttonCode)