Exposing entry::KeyState to the user.

examples/common/entry/entry.cpp

@@ -147,13 +147,123 @@ namespace entry
 		return result;
 	}
 
-	bool processEvents(uint32_t& _width, uint32_t& _height, uint32_t& _debug, uint32_t& _reset, MouseState* _mouse)
+	char keyToAscii(entry::Key::Enum _key, bool _shiftModifier)
+	{
+		static const char s_keyToAscii[entry::Key::Count] =
+		{
+			'\0', // None
+			0x1b, // Esc
+			0x0d, // Return
+			0x09, // Tab
+			0x20, // Space
+			0x08, // Backspace
+			'\0', // Up
+			'\0', // Down
+			'\0', // Left
+			'\0', // Right
+			'\0', // PageUp
+			'\0', // PageDown
+			'\0', // Home
+			'\0', // End
+			'\0', // Print
+			0x3d, // Equals
+			0x2d, // Minus
+			'\0', // F1
+			'\0', // F2
+			'\0', // F3
+			'\0', // F4
+			'\0', // F5
+			'\0', // F6
+			'\0', // F7
+			'\0', // F8
+			'\0', // F9
+			'\0', // F10
+			'\0', // F11
+			'\0', // F12
+			0x30, // NumPad0
+			0x31, // NumPad1
+			0x32, // NumPad2
+			0x33, // NumPad3
+			0x34, // NumPad4
+			0x35, // NumPad5
+			0x36, // NumPad6
+			0x37, // NumPad7
+			0x38, // NumPad8
+			0x39, // NumPad9
+			0x30, // Key0
+			0x31, // Key1
+			0x32, // Key2
+			0x33, // Key3
+			0x34, // Key4
+			0x35, // Key5
+			0x36, // Key6
+			0x37, // Key7
+			0x38, // Key8
+			0x39, // Key9
+			0x61, // KeyA
+			0x62, // KeyB
+			0x63, // KeyC
+			0x64, // KeyD
+			0x65, // KeyE
+			0x66, // KeyF
+			0x67, // KeyG
+			0x68, // KeyH
+			0x69, // KeyI
+			0x6a, // KeyJ
+			0x6b, // KeyK
+			0x6c, // KeyL
+			0x6d, // KeyM
+			0x6e, // KeyN
+			0x6f, // KeyO
+			0x70, // KeyP
+			0x71, // KeyQ
+			0x72, // KeyR
+			0x73, // KeyS
+			0x74, // KeyT
+			0x75, // KeyU
+			0x76, // KeyV
+			0x77, // KeyW
+			0x78, // KeyX
+			0x79, // KeyY
+			0x7a, // KeyZ
+		};
+
+		char ascii = s_keyToAscii[_key];
+
+		if (_shiftModifier)
+		{
+			// Big letters.
+			if(ascii >= 'a' && ascii <= 'z')
+			{
+				ascii += 'A' - 'a';
+			}
+			// Special cases.
+			else if('-' == ascii)
+			{
+				ascii = '_';
+			}
+			else if ('=' == ascii)
+			{
+				ascii = '+';
+			}
+		}
+
+		return ascii;
+	}
+
+	bool processEvents(uint32_t& _width, uint32_t& _height, uint32_t& _debug, uint32_t& _reset, MouseState* _mouse, KeyState* _keyboard)
 	{
 		s_debug = _debug;
 		s_reset = _reset;
 
 		bool mouseLock = inputIsMouseLocked();
 
+		if (NULL != _keyboard)
+		{
+			_keyboard->m_modifiers = 0;
+			memset(_keyboard->m_keysDown, 0, sizeof(_keyboard->m_keysDown) );
+		}
+
 		const Event* ev;
 		do
 		{
@@ -200,6 +310,16 @@ namespace entry
 					{
 						const KeyEvent* key = static_cast<const KeyEvent*>(ev);
 						inputSetKeyState(key->m_key, key->m_modifiers, key->m_down);
+
+						if (NULL != _keyboard)
+						{
+							_keyboard->m_modifiers |= key->m_modifiers;
+
+							if (key->m_down)
+							{
+								_keyboard->m_keysDown[key->m_key] = true;
+							}
+						}
 					}
 					break;
 

examples/common/entry/entry.h

@@ -124,6 +124,8 @@ namespace entry
 			KeyX,
 			KeyY,
 			KeyZ,
+
+			Count,
 		};
 	};
 
@@ -144,7 +146,14 @@ namespace entry
 		uint8_t m_buttons[entry::MouseButton::Count];
 	};
 
-	bool processEvents(uint32_t& _width, uint32_t& _height, uint32_t& _debug, uint32_t& _reset, MouseState* _mouse = NULL);
+	struct KeyState
+	{
+		uint8_t m_modifiers;
+		bool m_keysDown[entry::Key::Count];
+	};
+
+	char keyToAscii(entry::Key::Enum _key, bool _shiftModifier);
+	bool processEvents(uint32_t& _width, uint32_t& _height, uint32_t& _debug, uint32_t& _reset, MouseState* _mouse = NULL, KeyState* _keyboard = NULL);
 
 	void setWindowSize(uint32_t _width, uint32_t _height);
 	bool setWindowTitle(const char* _title);