Start Level into C++ Side

[firat.yuzbasioglu]

Hi All,

 

I have a project similar to the Unigine's Driving examples.I want to start the level into the C++ side.

How can i do this?

 

[unclebob]

Hello, Firat!

 

All you need to do is to get pointer to Unigine::Console class and then run console command "world_load" as you do in the script or in the engine's console.

Unigine::Console *console = Unigine::Console::get();
console->run("world_load name_of_your_world");

Don't forget to include UnigineConsole.h file.

[firat.yuzbasioglu]

Hi Andrey,

 

Thanks for your answer.I want to start level (game framework) inside C++ side.

Can your answer be applied to my situation?

[unclebob]

Yup, it's possible yet you'll need to do some work.

 

First of all, you have to have created and initialized Game instance in the code. Your task is to call its loadLevel method.

 

There might be many ways how to call it. For example, you can write a simple function in UnigineScript which will do the job and will take one string argument like this:

// UnigineScript

Game game = ...; // have to be initialized (via startup arguments or manually)

void cppLoadLevel(string name) {
   if(game == NULL) return;
   game.loadLevel(name);
}

// C++

Unigine::Engine *engine = Unigine::Engine::get();

if(engine->isWorldLoaded() && engine->isWorldFunction("cppLoadLevel",1)) {
    engine->runWorldFunction(Unigine::Variable("cppLoadLevel"),Unigine::Variable("MyLevelName"));
}

[Paul.Brodin]

sorry,didnt following that

 

i can see in some of the c++ examples things like

 

TrackerTrack track = tracker.loadTrack("samples/tracker/tracks/materials_00.track");

 

can i get access to something like that, in the same sort of way that ive got access to the players

        Player myCamera = Player.create(editor.getNode(iNodeID));

        Game game = Game.get();

        game.setPlayer(myCamera);

 

i cant find the Tracker classes from visual studio,

 

 

[unclebob]

Tracker is high-level system written entirely on UnigineScript. So the only possible way to interact between C++/C# and Tracker is to call functions from UnigineScript or from C++.

 

Here's how to export and call C++ function from UnigineScript: https://developer.unigine.com/en/docs/1.0/cpp_api/usage/functions

And I showed above how to call UnigineScript function from C++, also we have a C++ sample located in source\samples\Api\Scripts\Callbacks.

[firat.yuzbasioglu]

Hi Andrey,

 

Thanks for your answer.I have one question about where to call  your UnigineScript code.

Do i put your uniginescript code into the level cpp file?

[silent]

Hi Firat,

 

You should keep UnigineScript code separetely from the C++ code (please, don't mix them up!). You can also check our documentation on Callbacks.

 

Thanks!

[firat.yuzbasioglu]

Hi Silent,

 

Thanks for your answer.But i dont mean it.I know to separate UnigineScript code from the C++ code.I asked where i put code snippets that uncleboo suggests.

Do i have to put it into level file or somewhere else?

[unclebob]

Firat!

 

Usually, level logic is located in the world script. So if you have level.world then you need level.cpp file which will contain world script. Inside that file you can write your code snippets.

 

We have a cool article about "where to out your code" here: https://developer.unigine.com/en/docs/1.0/code/execution_sequence/code_update