Added the ability to change a games language code

src/core/hle/service/am/am.cpp

@@ -649,7 +649,8 @@ void IApplicationFunctions::GetDesiredLanguage(Kernel::HLERequestContext& ctx) {
     // TODO(bunnei): This should be configurable
     IPC::ResponseBuilder rb{ctx, 4};
     rb.Push(RESULT_SUCCESS);
-    rb.Push(static_cast<u64>(Service::Set::LanguageCode::EN_US));
+    rb.Push(
+        static_cast<u64>(Service::Set::available_language_codes[Settings::values.language_index]));
     LOG_DEBUG(Service_AM, "called");
 }
 

src/core/hle/service/set/set.cpp

@@ -8,29 +8,10 @@
 #include "core/hle/kernel/client_port.h"
 #include "core/hle/kernel/client_session.h"
 #include "core/hle/service/set/set.h"
+#include "core/settings.h"
 
 namespace Service::Set {
 
-constexpr std::array<LanguageCode, 17> available_language_codes = {{
-    LanguageCode::JA,
-    LanguageCode::EN_US,
-    LanguageCode::FR,
-    LanguageCode::DE,
-    LanguageCode::IT,
-    LanguageCode::ES,
-    LanguageCode::ZH_CN,
-    LanguageCode::KO,
-    LanguageCode::NL,
-    LanguageCode::PT,
-    LanguageCode::RU,
-    LanguageCode::ZH_TW,
-    LanguageCode::EN_GB,
-    LanguageCode::FR_CA,
-    LanguageCode::ES_419,
-    LanguageCode::ZH_HANS,
-    LanguageCode::ZH_HANT,
-}};
-
 void SET::GetAvailableLanguageCodes(Kernel::HLERequestContext& ctx) {
     ctx.WriteBuffer(available_language_codes);
 
@@ -52,9 +33,9 @@ void SET::GetAvailableLanguageCodeCount(Kernel::HLERequestContext& ctx) {
 void SET::GetLanguageCode(Kernel::HLERequestContext& ctx) {
     IPC::ResponseBuilder rb{ctx, 4};
     rb.Push(RESULT_SUCCESS);
-    rb.Push(static_cast<u64>(LanguageCode::EN_US));
+    rb.Push(static_cast<u64>(available_language_codes[Settings::values.language_index]));
 
-    LOG_DEBUG(Service_SET, "called");
+    LOG_DEBUG(Service_SET, "called {}", Settings::values.language_index);
 }
 
 SET::SET() : ServiceFramework("set") {

src/core/hle/service/set/set.h

@@ -29,6 +29,26 @@ enum class LanguageCode : u64 {
     ZH_HANT = 0x00746E61482D687A,
 };
 
+constexpr std::array<LanguageCode, 17> available_language_codes = {{
+    LanguageCode::JA,
+    LanguageCode::EN_US,
+    LanguageCode::FR,
+    LanguageCode::DE,
+    LanguageCode::IT,
+    LanguageCode::ES,
+    LanguageCode::ZH_CN,
+    LanguageCode::KO,
+    LanguageCode::NL,
+    LanguageCode::PT,
+    LanguageCode::RU,
+    LanguageCode::ZH_TW,
+    LanguageCode::EN_GB,
+    LanguageCode::FR_CA,
+    LanguageCode::ES_419,
+    LanguageCode::ZH_HANS,
+    LanguageCode::ZH_HANT,
+}};
+
 class SET final : public ServiceFramework<SET> {
 public:
     explicit SET();

src/core/settings.h

@@ -113,6 +113,7 @@ struct Values {
     // System
     bool use_docked_mode;
     std::string username;
+    int language_index;
 
     // Controls
     std::array<std::string, NativeButton::NumButtons> buttons;

src/yuzu/configuration/config.cpp

@@ -99,6 +99,7 @@ void Config::ReadValues() {
     qt_config->beginGroup("System");
     Settings::values.use_docked_mode = qt_config->value("use_docked_mode", false).toBool();
     Settings::values.username = qt_config->value("username", "yuzu").toString().toStdString();
+    Settings::values.language_index = qt_config->value("language_index", 1).toInt();
     qt_config->endGroup();
 
     qt_config->beginGroup("Miscellaneous");
@@ -203,6 +204,7 @@ void Config::SaveValues() {
     qt_config->beginGroup("System");
     qt_config->setValue("use_docked_mode", Settings::values.use_docked_mode);
     qt_config->setValue("username", QString::fromStdString(Settings::values.username));
+    qt_config->setValue("language_index", Settings::values.language_index);
     qt_config->endGroup();
 
     qt_config->beginGroup("Miscellaneous");

src/yuzu/configuration/configure_system.cpp

@@ -40,6 +40,7 @@ ConfigureSystem::~ConfigureSystem() {}
 void ConfigureSystem::setConfiguration() {
     enabled = !Core::System::GetInstance().IsPoweredOn();
     ui->edit_username->setText(QString::fromStdString(Settings::values.username));
+    ui->combo_language->setCurrentIndex(Settings::values.language_index);
 }
 
 void ConfigureSystem::ReadSystemSettings() {}
@@ -48,6 +49,7 @@ void ConfigureSystem::applyConfiguration() {
     if (!enabled)
         return;
     Settings::values.username = ui->edit_username->text().toStdString();
+    Settings::values.language_index = ui->combo_language->currentIndex();
     Settings::Apply();
 }
 

src/yuzu/configuration/configure_system.ui

@@ -164,7 +164,7 @@
           </item>
           <item>
            <property name="text">
-            <string>Simplified Chinese (简体中文)</string>
+            <string>Chinese</string>
            </property>
           </item>
           <item>
@@ -187,6 +187,31 @@
             <string>Russian (Русский)</string>
            </property>
           </item>
+           <item>
+             <property name="text">
+               <string>Taiwanese</string>
+             </property>
+           </item>
+           <item>
+             <property name="text">
+               <string>British English</string>
+             </property>
+           </item>
+           <item>
+             <property name="text">
+               <string>Canadian French</string>
+             </property>
+           </item>
+           <item>
+             <property name="text">
+               <string>Latin American Spanish</string>
+             </property>
+           </item>
+           <item>
+             <property name="text">
+               <string>Simplified Chinese</string>
+             </property>
+           </item>
           <item>
            <property name="text">
             <string>Traditional Chinese (正體中文)</string>

src/yuzu_cmd/default_ini.h

@@ -166,6 +166,16 @@ use_virtual_sd =
 # 1: Yes, 0 (default): No
 use_docked_mode =
 
+# Sets the account username, max length is 32 characters
+# yuzu (default)
+username =
+
+# Sets the systems language index
+# 0: Japanese, 1: English (default), 2: French, 3: German, 4: Italian, 5: Spanish, 6: Chinese,
+# 7: Korean, 8: Dutch, 9: Portuguese, 10: Russian, 11: Taiwanese, 12: British English, 13: Canadian French,
+# 14: Latin American Spanish, 15: Simplified Chinese, 16: Traditional Chinese
+language_index =
+
 # The system region that yuzu will use during emulation
 # -1: Auto-select (default), 0: Japan, 1: USA, 2: Europe, 3: Australia, 4: China, 5: Korea, 6: Taiwan
 region_value =