3D Sound in World Editor

Barthap · 01-04-2011 05:33 PM

Many people asked Esenthel for adding 3D Sound to World Editor. Because it's easy, I managed to do it. Here is source code of Sound3D class:

Code:

//sound3d.h

struct Sound3D : Game::Obj

{

   Vec     position; // the class will contain only position

   Sound sound;

   Str path;

   Flt range;

   Flt volume;

   // provide necessary methods required by Game::Obj :

      virtual void create(Game::ObjParams &obj); // extend default creation

      virtual Vec        pos(          )            {return position    ;} // get position

      virtual void        pos(C Vec &pos)            {     T.position=pos;} // set position

      virtual Matrix    matrix(                ){return position           ;} // get matrix

      virtual void        matrix(C Matrix &matrix){     T.position=matrix.pos;} // set matrix

      virtual Bool update     ();// object update

      virtual UInt drawPrepare();               // object draw prepare

   // constructor

   Sound3D();

};

And .cpp file

Code:

#include "stdafx.h"

#include "Main.h"

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

Sound3D::Sound3D() // initialize values in constructor

{

    position.zero();

    path = NULL;

    range = 1;

    volume = 0.5;

}

void Sound3D::create(Game::ObjParams &obj)

{

    // now setup custom parameters from 'obj'

    position=obj.matrixFinal().pos; // obtain our 'position' member from 'obj'

    if(Param *p = obj.findParam("path"))path = p->asText();

    if(Param *p = obj.findParam("range"))range = p->asFlt();

    if(Param *p = obj.findParam("volume"))volume = p->asFlt();

    sound.play(path,position,range,true,volume);

}

UInt Sound3D::drawPrepare()

{

    return 0; // return 0 because no additional rendering modes are required

}

Bool Sound3D::update()

{

    sound.pos(position);

    return true;

}

In main.h

Code:

#include "Sound3d.h"

In ObjType enum add OBJ_3D_SOUND

Example of use:
in Game.cpp

Code:

Game::ObjMemx<Sound3D> Sounds3D;

//in Init() in world creation code

Game::World

//...

.setObjType(Sounds3D, OBJ_3D_SOUND)

In world editor add object with parametrs:

Type: OBJ_3D_SOUND
Access: Constant! (screenshots are bad, there should be Constant Access, not Default)
Custom Params (type, name, default value):
- Real, range, 1
- Real, volume, 1
- String, path, (your path to sound file)

I created 3d sound base object and I add to world its derived objects. Here is screenshot:
[Image: sndobj.png]

And 3d sound is ready!

**Esenthel** · 01-04-2011 05:52 PM

That's great tutorial/snippet! Thanks

Edit: But either add missing save/load methods, or change the Access Mode to CONST (in the base Object)

Barthap · 01-04-2011 05:56 PM

Oh, I forgot changing it to Constant mode. Thanks!

Barthap · 01-22-2011 10:18 AM

I've added Polish version of this snippet to my blog http://hapex.com.pl/.
And added it to Esenthel Wiki: http://www.esenthel.com/wiki/index.php?t...rld_Editor

Dante190884 · 07-03-2011 12:18 AM

@Barthap: very helpful tutorial, thx and make more.

but how i can make the new base.obj file in Editor?

Jben · 07-03-2011 04:36 AM

Very Thx ! smile

Barthap · 07-03-2011 07:49 AM

in Object mode in Editor you should click File->New and there specify parametrs (wrote them in first post) then click F2 and save it as for example baseSound.obj. Then again click File->New and as Base select baseSound.obj and just tick the String path parametr and specify your path to sound file smile

I can make video.

Harry · 07-03-2011 11:06 AM

Your tutorial on Esenthel Wiki was probably removed.

**Esenthel** · 07-03-2011 11:40 AM

I dont remember removing it. Maybe it got lost when I was switching hosting

Dante190884 · 07-03-2011 01:47 PM

(07-03-2011 07:49 AM)Barthap Wrote: in Object mode in Editor you should click File->New and there specify parametrs (wrote them in first post) then click F2 and save it as for example baseSound.obj. Then again click File->New and as Base select baseSound.obj and just tick the String path parametr and specify your path to sound file I can make video.

Sorry, but in new version create new object is unavailable. Check this:

Uploaded with ImageShack.us

Can you make a quick video in this operation in newst engine edition? Can you do this?

----------------------------------
EDIT: im find little bug in your code:

Code:

Bool Sound3D::update()

{

    sound.pos(position);

    return true;

}

Must add in code this:

Code:

Listener.orn(Cam.matrix.z,Cam.matrix.y)  // set listener orientation (from camera)

              .pos(Cam.matrix.pos           ); // set listener position    (from camera)

Harry · 07-03-2011 03:33 PM

In Tymczasowy Obiekt (Temp Object) windows you should have Plik/Nowy (File/New).

Barthap · 07-03-2011 08:29 PM

Dante sorry but you dont know how to use world editor?
You should just set object parametrs same as I specified. You dont have to have base obj but you have to set that params smile

Truelegend · 07-04-2011 07:23 PM

I will add it for my game soon smile

thanks

pcarl · 12-18-2011 01:19 AM

So I'm trying to follow this example, but when I get to addObjType part of it, the function call does not exist. We are using the company license, is this limited in this release or has the interface change for this?

Thanks,

Carl

**Esenthel** · 12-18-2011 10:21 AM

It is setObjType

3D Sound in World Editor
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