Register observable 2V0 gameplay stubs through RunApp

extension/src/platform/ScriptLib/PythonBoot.cpp

@@ -24,6 +24,8 @@ bool fail(std::string* error, const std::string& text)
 }
 }
 
+void init_2v0_gameplay_stubs();
+
 namespace PythonBoot
 {
 
@@ -77,6 +79,7 @@ bool RunMainScript(const char* lpCmdLine, std::string* error)
 	initgrpText();
 	initwndMgr();
 	initapp();
+	init_2v0_gameplay_stubs();
 
 	ClearLogBoxMessage();
 

extension/src/platform/ScriptLib/PythonBoot.h

@@ -26,8 +26,8 @@ bool Start(const char* stdlib_path, std::string* error);
 bool IsRunning();
 
 // 40250: RunMainScript(CPythonLauncher&, const char*) — the module initializers, __DEBUG__,
-// __COMMAND_LINE__ and RunFile("system.py"). Only the initializers that are ported are called; the rest
-// arrive with the 2V slices, which is why system.py still stops at its first import.
+// __COMMAND_LINE__ and RunFile("system.py"). 2V0-e registers temporary observable gameplay modules;
+// they are replaced by the real modules in later 2V slices.
 // False leaves *error set to what the launcher reported through LogBox (platform/EterBase/LogBox.h).
 bool RunMainScript(const char* lpCmdLine, std::string* error);
 

extension/src/platform/UserInterface/PythonApplication.cpp

@@ -18,7 +18,13 @@ void CPythonApplication::Exit() { MT_PLATFORM_STUB(); }
 void CPythonApplication::Abort() { MT_PLATFORM_STUB(); }
 void CPythonApplication::SetMinFog(float) { MT_PLATFORM_STUB(); }
 void CPythonApplication::SetFrameSkip(bool) { MT_PLATFORM_STUB(); }
-bool CPythonApplication::Create(PyObject*, const char*, int, int, int) { MT_PLATFORM_STUB(); return false; }
+bool CPythonApplication::Create(PyObject*, const char*, int, int, int) {
+    MT_PLATFORM_STUB();
+    // appCreate returns NULL on failure. Give Python the exception that
+    // prototype.RunApp expects rather than a SystemError with no exception set.
+    PyErr_SetString(PyExc_RuntimeError, "CREATE_DEVICE");
+    return false;
+}
 void CPythonApplication::UpdateGame() { MT_PLATFORM_STUB(); }
 void CPythonApplication::RenderGame() { MT_PLATFORM_STUB(); }
 bool CPythonApplication::Process() { MT_PLATFORM_STUB(); return false; }
@@ -79,10 +85,19 @@ bool LoadLocaleData(const char*) { MT_PLATFORM_STUB(); return false; }
 void SetGuildSymbolPath(const char*) { MT_PLATFORM_STUB(); }
 void DefaultFont_SetName(const char*) { MT_PLATFORM_STUB(); }
 void TextTail_SetLivingTime(long) { MT_PLATFORM_STUB(); }
-const char* LocaleService_GetName() { MT_PLATFORM_STUB(); return ""; }
+namespace {
+// The supplied 40250 Client/locale.cfg selects "en" (code page 1252).
+// Keep these mutable for app.ForceSetLocale, as Locale.cpp does.
+std::string locale_name = "en";
+std::string locale_path = "locale/en";
+}
+const char* LocaleService_GetName() { return "EUROPE"; }
 bool LocaleService_IsCHEONMA() { MT_PLATFORM_STUB(); return false; }
 void LocaleService_SetCHEONMA(bool) { MT_PLATFORM_STUB(); }
-unsigned LocaleService_GetCodePage() { MT_PLATFORM_STUB(); return 0; }
-const char* LocaleService_GetLocaleName() { MT_PLATFORM_STUB(); return ""; }
-const char* LocaleService_GetLocalePath() { MT_PLATFORM_STUB(); return ""; }
-void LocaleService_ForceSetLocale(const char*, const char*) { MT_PLATFORM_STUB(); }
+unsigned LocaleService_GetCodePage() { return 1252; }
+const char* LocaleService_GetLocaleName() { return locale_name.c_str(); }
+const char* LocaleService_GetLocalePath() { return locale_path.c_str(); }
+void LocaleService_ForceSetLocale(const char* name, const char* path) {
+    locale_name = name ? name : "";
+    locale_path = path ? path : "";
+}

extension/src/python_host_node.h

@@ -6,8 +6,8 @@
 //       var err := Metin2PythonHost.run_main_script("")
 //
 // Both calls answer with "" on success and with the reason otherwise, so GDScript never has to guess
-// from a bool. Until 批次 2V0 registers the C++ modules, run_main_script() is expected to come back with
-// system.py's first import error; that is what step 4 verifies on each target platform.
+// from a bool. 2V0-e reaches prototype.RunApp(); until 2V0-f implements the application adapter,
+// app.Create reports CREATE_DEVICE and the original script displays its error popup.
 //
 // This is the only unit that knows both godot-cpp and the port tree: the sequence itself lives in
 // platform/ScriptLib/PythonBoot.h, which stays godot-free.