How to began with cars?

Truelegend · 04-17-2011 12:29 PM

i writed mini class but when i set camera position at Cars[0] is not near car is somewhere under world :(.

If someone can explain how this everything works. How to do classes in Esenthel.

Dynad · 04-17-2011 12:33 PM

you need to update the position of the camera in your update loop.

Truelegend · 04-17-2011 12:42 PM

Its code

Code:

#include "stdafx.h"

#include <EsenthelEngine/Enum/_enums.h>

STRUCT(Car, Game::Item)

//{

    Flt angle;

    Actor tcar;

    Mesh tcarm;

    Wheel wheels[4];

    Wheel::Param WP;

    virtual Bool init();

    virtual Bool update();

};

Game::ObjMemx<Game::Static> Statics; 

Game::ObjMemx<Game::Item  > Items  ; 

Game::ObjMemx<Game::Chr> Chrs   ;

Game::ObjMemx<      Car> Cars   ;

Bool Car::init()

{

    tcar.create(Box(2,1,4)).draw(RED);

    tcar.massCenterL(tcar.massCenterL()-Vec(0,0.8f,0));

    return true;

}

Bool Car::update()

{

    return true;

}

void InitPre()

{

   App.name("EE - Test");

   App.flag=APP_MS_EXCLUSIVE|APP_FULL_TOGGLE|EE::APP_MAXIMIZABLE;

   DataPath("../data");

   Paks.add("engine.pak");

   D.full(false).sync(true).ambPower(1);

}

Bool Init()

{

   Physics.create(CSS_NONE,true,"../Installation/PhysX");

   Game::World.init()

              .setObjType(Statics,OBJ_STATIC)

              .setObjType(Items  ,OBJ_ITEM  )

              .setObjType(Chrs   ,OBJ_CHR   )

              .setObjType(Cars   ,OBJ_CAR   )

              .New("world/sample.world");

   return true;

}

void Shut()

{

}

void UpdateCamera()

{

            Cam.yaw  -=Ms.d().x;

            Cam.pitch+=Ms.d().y; 

            Cam.dist=0.5f;    

            Cam.setSpherical(Cars[0].pos(), Cam.yaw, Cam.pitch, 0, Cam.dist); // set spherical camera looking at player using camera angles

            Cam.updateVelocities().set();     

}

Bool Update()

{

   if(Kb.bp(KB_ESC))return false;

   Game::World.update(Cam.at);

   UpdateCamera () ;

   return true;

}

void Render()

{

    Game::World.draw();

}

void Draw()

{

    Renderer(Render);

    SetMatrix(MatrixIdentity);

}

Screen from World Editor:
[Image: 58874403.png]

Screen from Game:
[Image: gametk.png]

So can aynone explain. say what i doing wrong ? thanks

Dynad · 04-17-2011 12:47 PM

you need to create your car object.

PHP Code:

virtual void create(Game::ObjParams &obj);

void Car::create(Game::ObjParams &obj)
{
   __super::create(obj);
} 

this in your update loop

PHP Code:

Cam.setSpherical(cars[0].pos()+Vec(0,1,0),cars[0].angle.x,cars[0].angle.y,0,Cam.dist*ScaleFactor(Ms.wheel()*-0.2f));
Cam.updateVelocities();
      Cam.set(); 

But please look at the tutorials..... you can find everything there.

Truelegend · 04-17-2011 12:52 PM

okey but what i must do with?
virtual void create(Game::ObjParams &obj);
i added this to class but next?
////
and this what you gived before doesnt work ....
////
and dont think i am stupid. but when i programming with Ogre3d its other then EE.

i just writed a class Car. later i set camera behind car. etc... Here in ee is another. And i am beginner in writing games. Sorry for all problems.
But when i want something go work. it never work :(

Dynad · 04-17-2011 12:56 PM

Dude do some research... we are not here to create your game.. just to help at some parts.

Maybe follow your own advice would be a wise choice.

(04-15-2011 06:49 PM)Truelegend Wrote: If you don't know c++. Dont start programming 3d games ...
First write little programs (console,later gui), later 2d and last 3d.

For help: Google (C++ Tutorials);

Truelegend · 04-17-2011 12:59 PM

Yeah. I think write own engine is easier then write in EE. I maked My own 3d engine before and little 3d pseudo-games. But i dont understand somethings in ee.

Why
STRUCT(...,..)
//{ why here is comment?
} // and here is normal ??

it lot of stupid thing here ;. which i dont understand

And why i must use Game::Item to make my class why i cant just use class ?

Seba · 04-17-2011 01:05 PM

Thats why you need study tutorials. For class/struct you can use c++ style. I write it above.

Quote:class Car : Game::Item
{
};

Dynad · 04-17-2011 01:06 PM

STRUCT(...,..)
//{ why here is comment?
} // and here is normal ??

this is the same as:

struct Cars : Game::Item
{
};

the difference is that the STRUCT declaration also works on other devices besides Windows.

You don't need to use Game::Item.. but then u need to write all init/draw/render/etc.. functions yourself.

Truelegend · 04-17-2011 01:08 PM

okey now i understand. but is one thing/problem. When i have OBJ_CAR i cant see it in my game. :(

Dynad · 04-17-2011 01:11 PM

Just study the tutorial: 03 - World with Character.cpp.

After you have done that, you can answer that question yourself.

Truelegend · 04-17-2011 01:32 PM

I have done world with character. animations. But when i make a OBJ_CAR i cant see it!
I can see it just in world editor. but in Play mode i cant see.

i cant do a car :( because i dont know how to. In other engines i know but i dont know in ee.

Dynad · 04-17-2011 01:35 PM

Thats because the WE only supports the default enums. If you want your own enums you need to purchase the company license.

Truelegend · 04-17-2011 01:50 PM

so i cant make my car class?

Can anyone check this class?

Code:

/*****************************************/

class Car : Game::Item {

public:

    Flt           WheelAngle  ;

    Actor         CarActor    ;

    Mesh          CarMesh     ;

    Wheel         CarWheel[4] ;

    Wheel::Param  WP          ;

    virtual Bool init  () //some things i know what goest there

    {

        CarActor.create (Box(2,2,4));

        Car     .massCenterL(Car.massCenterL()-Vec(0,0.8f,0));

        CarWheel[0].create(CarActor,Matrix().setPos(Vec(1,-0.5f,1.5f)), WP);

        CarWheel[1].create(CarActor,Matrix().setPos(Vec(-1,0.5f,1.5f)), WP);

        CarWheel[2].create(CarActor,Matrix().setPos(Vec(1,-0.5f,-1.5f)), WP);

        CarWheel[3].create(CarActor,Matrix().setPos(Vec(-1,-0.5f,-1.5f)), WP);

        return true;

    }

    virtual Bool update();//dont know what goest here...

    {

        AdjustValTime(WheelAngle,(Kb.b(KB_D)-Kb.b(KB_A))*PI_4,0.0.1f);

        Flt accel=(Kb.b(KB_W)-Kb.b(KB_S))*1600,

            brake=Kb.b(KB_SPACE)         *3600;

        CarWheel[0].angle(WheelAngle).accel(accel).brake(brake);

        CarWheel[1].angle(WheelAngle).accel(accel).brake(brake);

    }

    virtual Bool camera();//camera behind car.. ?

    {

        return true;    

    }

}

/*****************************************/

It its good?

Seba · 04-17-2011 02:01 PM

Tutorials 8 and 9 from Game Basic.
Try write like in 8 file. If you post screen with loaded your car i will help with rest.

From my game:

Uploaded with ImageShack.us

But I don't know why you want to make car from space ship?

How to began with cars?
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