[macOS] Fixes NumPad keys detection, adds some missing key mappings.

platform/osx/os_osx.mm

@@ -765,9 +765,41 @@ static void _mouseDownEvent(NSEvent *event, int index, int mask, bool pressed) {
 	[super updateTrackingAreas];
 }
 
+static bool isNumpadKey(unsigned int key) {
+
+	static const unsigned int table[] = {
+		0x41, /* kVK_ANSI_KeypadDecimal */
+		0x43, /* kVK_ANSI_KeypadMultiply */
+		0x45, /* kVK_ANSI_KeypadPlus */
+		0x47, /* kVK_ANSI_KeypadClear */
+		0x4b, /* kVK_ANSI_KeypadDivide */
+		0x4c, /* kVK_ANSI_KeypadEnter */
+		0x4e, /* kVK_ANSI_KeypadMinus */
+		0x51, /* kVK_ANSI_KeypadEquals */
+		0x52, /* kVK_ANSI_Keypad0 */
+		0x53, /* kVK_ANSI_Keypad1 */
+		0x54, /* kVK_ANSI_Keypad2 */
+		0x55, /* kVK_ANSI_Keypad3 */
+		0x56, /* kVK_ANSI_Keypad4 */
+		0x57, /* kVK_ANSI_Keypad5 */
+		0x58, /* kVK_ANSI_Keypad6 */
+		0x59, /* kVK_ANSI_Keypad7 */
+		0x5b, /* kVK_ANSI_Keypad8 */
+		0x5c, /* kVK_ANSI_Keypad9 */
+		0x5f, /* kVK_JIS_KeypadComma */
+		0x00
+	};
+	for (int i = 0; table[i] != 0; i++) {
+		if (key == table[i])
+			return true;
+	}
+	return false;
+}
+
 // Translates a OS X keycode to a Godot keycode
 //
 static int translateKey(unsigned int key) {
+
 	// Keyboard symbol translation table
 	static const unsigned int table[128] = {
 		/* 00 */ KEY_A,
@@ -780,7 +812,7 @@ static int translateKey(unsigned int key) {
 		/* 07 */ KEY_X,
 		/* 08 */ KEY_C,
 		/* 09 */ KEY_V,
-		/* 0a */ KEY_UNKNOWN,
+		/* 0a */ KEY_SECTION, /* ISO Section */
 		/* 0b */ KEY_B,
 		/* 0c */ KEY_Q,
 		/* 0d */ KEY_W,
@@ -834,7 +866,7 @@ static int translateKey(unsigned int key) {
 		/* 3d */ KEY_ALT,
 		/* 3e */ KEY_CONTROL,
 		/* 3f */ KEY_UNKNOWN, /* Function */
-		/* 40 */ KEY_UNKNOWN,
+		/* 40 */ KEY_UNKNOWN, /* F17 */
 		/* 41 */ KEY_KP_PERIOD,
 		/* 42 */ KEY_UNKNOWN,
 		/* 43 */ KEY_KP_MULTIPLY,
@@ -842,16 +874,16 @@ static int translateKey(unsigned int key) {
 		/* 45 */ KEY_KP_ADD,
 		/* 46 */ KEY_UNKNOWN,
 		/* 47 */ KEY_NUMLOCK, /* Really KeypadClear... */
-		/* 48 */ KEY_UNKNOWN, /* VolumeUp */
-		/* 49 */ KEY_UNKNOWN, /* VolumeDown */
-		/* 4a */ KEY_UNKNOWN, /* Mute */
+		/* 48 */ KEY_VOLUMEUP, /* VolumeUp */
+		/* 49 */ KEY_VOLUMEDOWN, /* VolumeDown */
+		/* 4a */ KEY_VOLUMEMUTE, /* Mute */
 		/* 4b */ KEY_KP_DIVIDE,
 		/* 4c */ KEY_KP_ENTER,
 		/* 4d */ KEY_UNKNOWN,
 		/* 4e */ KEY_KP_SUBTRACT,
-		/* 4f */ KEY_UNKNOWN,
-		/* 50 */ KEY_UNKNOWN,
-		/* 51 */ KEY_EQUAL, //wtf equal?
+		/* 4f */ KEY_UNKNOWN, /* F18 */
+		/* 50 */ KEY_UNKNOWN, /* F19 */
+		/* 51 */ KEY_EQUAL, /* KeypadEqual */
 		/* 52 */ KEY_KP_0,
 		/* 53 */ KEY_KP_1,
 		/* 54 */ KEY_KP_2,
@@ -860,27 +892,27 @@ static int translateKey(unsigned int key) {
 		/* 57 */ KEY_KP_5,
 		/* 58 */ KEY_KP_6,
 		/* 59 */ KEY_KP_7,
-		/* 5a */ KEY_UNKNOWN,
+		/* 5a */ KEY_UNKNOWN, /* F20 */
 		/* 5b */ KEY_KP_8,
 		/* 5c */ KEY_KP_9,
-		/* 5d */ KEY_UNKNOWN,
-		/* 5e */ KEY_UNKNOWN,
-		/* 5f */ KEY_UNKNOWN,
+		/* 5d */ KEY_YEN, /* JIS Yen */
+		/* 5e */ KEY_UNDERSCORE, /* JIS Underscore */
+		/* 5f */ KEY_COMMA, /* JIS KeypadComma */
 		/* 60 */ KEY_F5,
 		/* 61 */ KEY_F6,
 		/* 62 */ KEY_F7,
 		/* 63 */ KEY_F3,
 		/* 64 */ KEY_F8,
 		/* 65 */ KEY_F9,
-		/* 66 */ KEY_UNKNOWN,
+		/* 66 */ KEY_UNKNOWN, /* JIS Eisu */
 		/* 67 */ KEY_F11,
-		/* 68 */ KEY_UNKNOWN,
+		/* 68 */ KEY_UNKNOWN, /* JIS Kana */
 		/* 69 */ KEY_F13,
 		/* 6a */ KEY_F16,
 		/* 6b */ KEY_F14,
 		/* 6c */ KEY_UNKNOWN,
 		/* 6d */ KEY_F10,
-		/* 6e */ KEY_UNKNOWN,
+		/* 6e */ KEY_MENU,
 		/* 6f */ KEY_F12,
 		/* 70 */ KEY_UNKNOWN,
 		/* 71 */ KEY_F15,
@@ -971,6 +1003,9 @@ static const _KeyCodeMap _keycodes[55] = {
 
 static int remapKey(unsigned int key) {
 
+	if (isNumpadKey(key))
+		return translateKey(key);
+
 	TISInputSourceRef currentKeyboard = TISCopyCurrentKeyboardInputSource();
 	if (!currentKeyboard)
 		return translateKey(key);