Error expected method or property

[TheGreatCthulhu]

I suggest you try to imagine writing a script with no C++ references.

Here are your Amnesia references: http://wiki.frictionalgames.com/hpl2/amn..._functions

I know, but I need to function on C++, because it ,,Engine Sripts``,does`t help me(.

If you want to make level scripts for this game, C++ will not work. Never ever.
You can't use C++ at all.
Some of the code may look like C++, but it's not C++.
It's a completely different language called AngelScript, together with a set of functions documented on the Engine Scripts page.
That's all you can use. No C++.