Lots of refactoring in IntegrationGameModeBase

Source/Integration/LockedWrapper.cpp

@@ -1,6 +1,7 @@
 
 #include "LockedWrapper.h"
 #include "DebugPrint.h"
+#include "drvutil.hpp"
 
 void FLockedWrapper::InitWrapper() {
 	if (Lockable.Wrapper.play_initialize != nullptr) {
@@ -16,4 +17,24 @@ void FLockedWrapper::InitWrapper() {
 			Lockable.Wrapper.hook_dprint(DebugPrint::DPrint);
 		}
 	}
-}
+}
+
+FString FLockedWrapper::FetchStdout() {
+	if (Lockable.Wrapper.engine == nullptr) {
+		return FString();
+	}
+
+	uint32_t ndata; const char* data;
+	Lockable.Wrapper.get_outgoing(Get(), 0, &ndata, &data);
+
+	if (ndata == 0) {
+		return FString();
+	}
+
+	std::string_view src(data, ndata);
+	int consumed;
+	std::u16string cps = drvutil::utf8_to_ucs2(src, &consumed);
+	Lockable.Wrapper.play_sent_outgoing(Get(), 0, consumed);
+	return FString(cps.size(), (const UCS2CHAR*)(&cps[0]));
+}
+