Lots of refactoring in LuaCallNode

Source/Integration/LuprexK2Node.h

@@ -0,0 +1,34 @@
+
+#pragma once
+
+#include "K2Node.h"
+
+#include "LuprexK2Node.generated.h"
+
+//
+// Base class for Luprex K2 nodes, adding common utility functions.
+//
+UCLASS(Abstract, MinimalAPI)
+class UlxK2Node : public UK2Node
+{
+	GENERATED_BODY()
+
+protected:
+	/** Add a single-char prefix to a pin name, e.g. AddPrefix("foo", 'A') -> "A:foo" */
+	static FName AddPrefix(const FString &Name, char Prefix);
+
+	/** Strip a single-char prefix from a pin name, returning the original name if no prefix is found. */
+	static FName RemovePrefix(FName Name);
+
+	/** Convert a UFunction property to a pin type. Returns a default (wildcard) pin type on failure. */
+	static FEdGraphPinType PropertyToPinType(const FProperty *Property);
+
+	/** Set a fatal error message on this node. */
+	void SetErrorMsg(const FString &Msg);
+
+	/** Spawn an intermediate UK2Node_CallFunction during node expansion. */
+	class UK2Node_CallFunction* MakeCallFunctionNode(class FKismetCompilerContext &CompilerContext, UEdGraph *SourceGraph, UFunction *Func);
+
+	/** Link ExecOut to NextNode's exec pin, return NextNode's output exec pin (by name). */
+	static UEdGraphPin* ChainExecPin(UEdGraphPin *ExecOut, UK2Node *NextNode, const TCHAR *OutputPinName);
+};