Add AUTO_LOWERCASE_KEYBOARD (#4976)

* Added SwapKeyboardToLowerAfterFirstCapitalLetter and AUTO_LOWERCASE_KEYBOARD

* Fixed tabs and spacing per https://github.com/rh-hideout/pokeemerald-expansion/pull/4976/files\#r1677868397

* Removed semicolon found by #4976

include/config/general.h

@@ -80,4 +80,7 @@
 #define UNITS                        UNITS_IMPERIAL
 #define CHAR_DEC_SEPARATOR           CHAR_PERIOD // CHAR_PERIOD is used as a decimal separator only in the UK and the US. The rest of the world uses CHAR_COMMA.
 
+// Naming Screen
+#define AUTO_LOWERCASE_KEYBOARD      GEN_LATEST  // Starting in GEN_6, after entering the first uppercase character, the keyboard switches to lowercase letters.
+
 #endif // GUARD_CONFIG_GENERAL_H

src/naming_screen.c

@@ -1436,6 +1436,7 @@ static void NamingScreen_CreateWaldaDadIcon(void)
 //--------------------------------------------------
 
 static bool8 KeyboardKeyHandler_Character(u8);
+static void SwapKeyboardToLowerAfterFirstCapitalLetter(void);
 static bool8 KeyboardKeyHandler_Page(u8);
 static bool8 KeyboardKeyHandler_Backspace(u8);
 static bool8 KeyboardKeyHandler_OK(u8);
@@ -1480,6 +1481,8 @@ static bool8 KeyboardKeyHandler_Character(u8 input)
     {
         bool8 textFull = AddTextCharacter();
 
+        SwapKeyboardToLowerAfterFirstCapitalLetter();
+
         SquishCursor();
         if (textFull)
         {
@@ -1490,6 +1493,20 @@ static bool8 KeyboardKeyHandler_Character(u8 input)
     return FALSE;
 }
 
+static void SwapKeyboardToLowerAfterFirstCapitalLetter(void)
+{
+    if (AUTO_LOWERCASE_KEYBOARD < GEN_6)
+        return;
+
+    if (sNamingScreen->currentPage != KBPAGE_LETTERS_UPPER)
+        return;
+
+    if (GetTextEntryPosition() != 1)
+        return;
+
+    MainState_StartPageSwap();
+}
+
 static bool8 KeyboardKeyHandler_Page(u8 input)
 {
     TryStartButtonFlash(BUTTON_PAGE, TRUE, FALSE);