World saving

kulesz · 08-24-2011 07:38 PM

If I create world with:

Code:

    Game::WorldSettings WorldSet;

    WorldSet.area_size = 128;

    WorldSet.hm_res = 129;

    WorldSet.path_res = 32;

    Game::World.init(Game::WORLD_MANUAL);

    Game::World.Create("data/world/mmo.world", WorldSet);

    Game::World.New("data/world/mmo.world");

    Game::World.setObjType(Items, OBJ_ITEM);

    Game::World.setObjType(Players, OBJ_PLAYER);

    Game::World.update(Cam.at);

And then change it area heightmap with:

Code:

        Vec Position(0,0,0);

        TerrainHeightmaps[Position.x][Position.z]=new Edit::Heightmap;

        TerrainMeshes[Position.x][Position.z]=new Mesh;

        TerrainHeightmaps[Position.x][Position.z]->create(32,Materials.ptrRequire("mtrl/grass/Grass0020_3_S.mtrl"),true,NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);

        PhysBody *p_temp = new PhysBody;

        TerrainHeightmaps[Position.x][Position.z]->build(*TerrainMeshes[Position.x][Position.z], 0,10,false,NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);

        TerrainMeshes[Position.x][Position.z]->scaleMove(Vec(CHUNK_RESOLUTION,100,CHUNK_RESOLUTION), Vec(CHUNK_RESOLUTION*Position.x,0,CHUNK_RESOLUTION*Position.z));//Vec(128*i,0,128*j));

        TerrainBodies[Position.x][Position.z] = new PhysBody;

        TerrainBodies[Position.x][Position.z]->parts.New().createMesh(*TerrainMeshes[Position.x][Position.z]); // create physical body from 'mesh'

        Game::WorldManager::AreaState as1;

        as1.set(VecI2(Position.x,Position.z), Game::AREA_ACTIVE);

        Memc<Game::WorldManager::AreaState> ases;

        ases.add(as1);

        Game::World.areaSetState(ases, false);

        Game::World.areaActive(VecI2(Position.x,Position.z))->getData();

        Game::World.areaActive(VecI2(Position.x,Position.z))->data()->mshg.meshes(0).create(*TerrainMeshes[Position.x][Position.z]);

        Game::World.areaActive(VecI2(Position.x,Position.z))->data()->phys()=*TerrainBodies[Position.x][Position.z];

        Game::World.areaActive(VecI2(Position.x,Position.z))->data()->actor().create(*TerrainBodies[Position.x][Position.z]);

How should I save the world area data, so it would be visible after next run? Save and load doesn't work.

alkirah · 08-25-2011 01:38 PM

void save ( File &f , void (*save)(File &f)=NULL ); // save active world state to 'f' file, 'save'=pointer to fuction saving custom save data
Bool save (C Str &save_name, void (*save)(File &f)=NULL, Secure *secure=NULL); // save active world state to 'save_name' file, 'save'=pointer to fuction saving custom save data , false on fail

So it would be Game::World.save(X); where X is either a ptr to a file or a string.

kulesz · 08-25-2011 01:41 PM

But it doesn't save the changed areas :-/

kulesz · 08-27-2011 08:02 AM

Bump?

Harry · 08-27-2011 09:09 AM

In Game::World.save you can have also your custom save function:

Code:

void Save(File &f)

{

}

Game.World::Save(...,Save);

Did you try save in this function informations about areas?

kulesz · 08-27-2011 09:34 AM

Well, I assumed, that World and it's area data are quite strong connected, so that by saving world, area information would also save.
It would be helpful, if Esenthel could write, which data (and how) should be written to completely save the world (including objects, like grass etc.). I'm just trying to generate entire terrain (with foliage, trees, water an so...) in realtime - and than I need to save it all, so it would look exactly the same after load.

kulesz · 08-27-2011 07:18 PM

Can't get it to work :-/

**Esenthel** · 08-28-2011 11:42 AM

override Game::Area::Data::customSaveWant and return true
that's all

kulesz · 08-28-2011 11:48 AM

But when I do:

Code:

struct MyAreaData : public Game::Area::Data

{

    virtual Bool customSaveWant()

    {

        return true;

    }

};

and then in Init():

Code:

Game::World.setAreaData<MyAreaData>();

I get the errors during compilation:

Code:

1>c:\program files (x86)\microsoft visual studio 10.0\vc\include\esenthelengine\game\world.h(243): error C2664: 'MyAreaData::MyAreaData' : cannot convert parameter 1 from 'EE::Game::Area' to 'MyAreaData &'

1>          c:\program files (x86)\microsoft visual studio 10.0\vc\include\esenthelengine\game\world.h(244) : see reference to function template instantiation 'EE::Game::Area::Data &EE::Game::WorldManager::NewAreaData<TYPE>(EE::Game::Area::Data *&,EE::Game::Area &)' being compiled

1>          with

1>          [

1>              TYPE=MyAreaData

1>          ]

1>          c:\program files (x86)\microsoft visual studio 10.0\vc\include\esenthelengine\game\world.h(91) : see reference to function template instantiation 'EE::Game::WorldManager &EE::Game::WorldManager::_setAreaData<TYPE>(void)' being compiled

1>          with

1>          [

1>              TYPE=MyAreaData

1>          ]

1>          e:\ee\blockmap\source\main.cpp(219) : see reference to function template instantiation 'EE::Game::WorldManager &EE::Game::WorldManager::setAreaData<MyAreaData>(void)' being compiled

1>

**Esenthel** · 08-28-2011 11:50 AM

you need to specify constructor

struct MyAreaData : public Game::Area::Data
{
MyAreaData(Area &area) : Game::Area::Data(area) {}
};

kulesz · 08-28-2011 11:54 AM

OK, it compiles and makes some files in the "test.world/Game/Area" directory, but after re-running application and doing

Code:

Game::World.load("data/world/test.world");

I can't see the areas I've generated before.

OK, got it... Just need to set the area states properly smile

**Esenthel** · 08-29-2011 10:51 AM

also remember that 'World.load' is for loading world states (savegames, and not for loading worlds)
for loading worlds use World.New

kulesz · 08-29-2011 11:21 AM

OK, so saving area data: world heightmap (mesh), grass container, embedded objs (is there a way to add them from code?) and decals I should overriding customSaveWant - they will save automatically when something change?
What objects do save/load functions affects then?

**Esenthel** · 08-29-2011 11:27 AM

World.save/load affect dynamic objects (Game::Obj, savegames)

customSaveWant - they will save automatically when something change?
they will save automatically always (not on change)

embedded objs (is there a way to add them from code?)
no

World saving
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