Refactor so GameModeBase is the runnable

Source/Integration/engineutil.cpp

@@ -14,34 +14,31 @@ void init_wrapper(EngineWrapper* w) {
 	}
 }
 
-// Print text using GEngine->Add...
-void RawPrint(const char* text) {
-	if (GEngine)
-	{
-		GEngine->AddOnScreenDebugMessage(-1, 15.0f, FColor::Yellow, FString(text));
-	}
-}
-
-static TArray<FString> dprints;
+// The DPrint array.  This stores the dprints
+// until they can be collected by the console implementation.
+static TArray<FString> dprint_array;
+static FCriticalSection dprint_mutex;
 
 void DPrint(const FString& fs) {
-	dprints.Emplace(fs);
+	FScopeLock lk(&dprint_mutex);
+	dprint_array.Emplace(fs);
 }
 
 void DPrint(const char* msg) {
-	dprints.Emplace(msg);
+	FScopeLock lk(&dprint_mutex);
+	dprint_array.Emplace(msg);
 }
 
 void DPrintHook(const char* msg, size_t len) {
-	dprints.Emplace(len, (const UTF8CHAR*)msg);
+	FScopeLock lk(&dprint_mutex);
+	dprint_array.Emplace(len, (const UTF8CHAR*)msg);
 }
 
-const TArray<FString>& DPrintGetStored() {
-	return dprints;
-}
-
-void DPrintClearStored() {
-	dprints.Reset();
+TArray<FString> DPrintGetStored() {
+	FScopeLock lk(&dprint_mutex);
+	TArray<FString> result = std::move(dprint_array);
+	dprint_array.Empty();
+	return result;
 }
 
 void ConsoleOutput::Append(const FString& text) {