ObjectTable in C++ ?

[Digiverse]

Some game scripts refer to an objecttable in order to get additional info from an object created in its script.

 

chassis=LoadModel("abstract::monstertruck.gmf")

carobject=objecttable[chassis]

car=carobject.vehicle

 

In the above drive.lua game script, a monstertruck is being created in its own monstertruck.lua script when the gmf model is loaded and we can use the objecttable to get a reference to the vehicle object that was created in the monstertruck script.

 

However, I'm a bit lost as to how I would get this vehicle object reference if I were to not have a game script but be running the game in C++.

 

I could still use

 

chassis=LoadModel("abstract::monstertruck.gmf")

 

in my C++ game, but how could I get a reference to the vehicle object that was created by CreateVehicle in the monstertruck.lua?

 

Sorry if this is basic stuff, but I'm a bit stumped!

Thanks

[ParaToxic]

I haven't programmed in lua yet but I think you can make that with the SetGlobalObject command and set the ObjectTable as a Object and get it in C++

[Daimour]

You can create your vehicle directly in C++. It means to convert entity script code to C++. So you will have access to all it's parts directly in C++.

[smashthewindow]

If you main game is going to be in C++, I would suggest that you program every major part of the game (characters, events etc) in C++.

Lua should be used to program smaller, additional behaviours (opening doors, etc).

[Digiverse]

Thanks for your replies.

 

My main reason for wanting to utilise Lua scripts for the basic setup and properties of the vehicle was so I could make quick changes during testing within the Editor environment and use the same script in my main c++ game.

 

I was previously setting up my vehicle completely in C++, but it meant I wasn't easily able to use the same vehicle in the Editor (without copying the code into a lua script).

 

I've still not found a way of accessing the TVehicle reference in C++ of a car made in Lua, but I've got around it quite well for now by doing everything that needs the TVehicle in the script and everything else in C++.

 

In a way its quite nice because it keeps the creation and use of the vehicle seperate. Theres actually something quite satisfying about passing in throttle and steering commands from C++ into a car script and having the game control the car.

 

I'm far more comfortable with C++ than Lua though and this only works for me at the moment because the code required in the car script is relatively small, so it maybe that long term I transfer it all back into C++ if I end up needing to access the TVehicle more, but the process has certinaly help me to learn Lua a bit.