More work on the LuaCall interface

Source/Integration/IntegrationGameModeBase.h

@@ -46,15 +46,22 @@ public:
 	// Assemble a lua call. To call into lua:
 	//
 	// * Use LuaCallBegin
-	// * Get the lua call buffer.
-	// * Add a class name and a function name to the buffer.
-	// * Add parameters to the buffer.
-	// * Use LuaCallInvoke.
+	// * Get the lua call buffer:
+	//	  - add a class name
+	//    - add a function name
+	//    - add function parameters
+	// * Use LuaCallEnd.
+	// * Get the lua call result.
+	//    - parse out any return values
 	//
-	void LuaCallBegin() { LuaCallBuffer.clear(); }
+	FlxStreamBuffer &LuaCallBegin() { LuaCallBuffer.clear(); return LuaCallBuffer; }
 	FlxStreamBuffer &LuaCallGetBuffer() { return LuaCallBuffer; }
-	void LuaCallInvoke(AActor *place);
-
+	void LuaCallEnd(InvocationKind kind);
+	void LuaCallEnd(InvocationKind kind, int64 place_id);
+	void LuaCallEnd(InvocationKind kind, AActor *place);
+	FlxStreamBuffer &LuaCallGetResult() { return LuaCallResult; }
+	void LuaCallClear() { LuaCallBuffer.clear(); LuaCallResult.clear(); }
+	
 	// Execute a debugging command, typed on the GUI.
 	void ExecuteDebuggingCommand(FlxLockedWrapper &w, const FString &fs);
 
@@ -89,6 +96,7 @@ public:
 
 	// The Lua Call assembly buffer.
 	FlxStreamBuffer LuaCallBuffer;
+	FlxStreamBuffer LuaCallResult;
 
 	// This utility runs the luprex update and socket update in a thread.
 	FTriggeredTask LuprexUpdateTask;