Clean-up mpqapi_set_hidden (#552)

* Clean-up mpqapi_set_hidden
Co-Authored-By: JustAnotherGuid <46401660+JustAnotherGuid@users.noreply.github.com>

Source/mpqapi.cpp

@@ -15,25 +15,19 @@ BOOLEAN save_archive_open; // weak
 
 HANDLE sghArchive = (HANDLE)0xFFFFFFFF; // idb
 
-BOOLEAN __fastcall mpqapi_set_hidden(const char *pszArchive, BOOLEAN hidden)
+BOOL __fastcall mpqapi_set_hidden(const char *pszArchive, BOOL hidden)
 {
-	const char *v2; // edi
-	BOOL v3;        // esi
-	DWORD v4;       // eax
-	BOOLEAN result; // al
-	DWORD v6;       // esi
+	DWORD dwFileAttributes;
+	DWORD dwFileAttributesToSet;
 
-	v2 = pszArchive;
-	v3 = hidden;
-	v4 = GetFileAttributes(pszArchive);
-	if (v4 == -1)
+	dwFileAttributes = GetFileAttributes(pszArchive);
+	if (dwFileAttributes == INVALID_FILE_ATTRIBUTES)
 		return GetLastError() == ERROR_FILE_NOT_FOUND;
-	v6 = v3 != 0 ? FILE_ATTRIBUTE_SYSTEM | FILE_ATTRIBUTE_HIDDEN : 0;
-	if (v4 == v6)
-		result = 1;
+	dwFileAttributesToSet = hidden ? FILE_ATTRIBUTE_SYSTEM | FILE_ATTRIBUTE_HIDDEN : 0;
+	if (dwFileAttributes == dwFileAttributesToSet)
+		return TRUE;
 	else
-		result = SetFileAttributes(v2, v6);
-	return result;
+		return SetFileAttributes(pszArchive, dwFileAttributesToSet);
 }
 
 void __fastcall mpqapi_store_creation_time(const char *pszArchive, int dwChar)

Source/mpqapi.h

@@ -9,7 +9,7 @@ extern BOOLEAN save_archive_modified; // weak
 extern _BLOCKENTRY *sgpBlockTbl;
 extern BOOLEAN save_archive_open; // weak
 
-BOOLEAN __fastcall mpqapi_set_hidden(char *pszArchive, BOOLEAN hidden);
+BOOL __fastcall mpqapi_set_hidden(char *pszArchive, BOOL hidden);
 void __fastcall mpqapi_store_creation_time(const char *pszArchive, int dwChar);
 BOOLEAN __fastcall mpqapi_reg_load_modification_time(char *dst, int size);
 void __fastcall mpqapi_xor_buf(char *pbData);