CArea loading optimization

[Distraught 9964]

Hello everyone,

I was optimizing the loading of maps for my server and I decided to share it with the public. With this modifications, only the objects and effects around the character will be loaded and it will handle their load and unload as you move around. Also effect updatings are optimized a way that closer effects are updated more frequently.

Okay, so let's start the work

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Good luck!

Edited February 24, 2025 by Distraught

[WeedHex 661]

Any video to see the effect?

I love this kind of works. Thank you for share!

[Distraught 9964]

I added a GIF

[Volvox 2043]

You are amazing

[Valki 747]

@ ASIKOO #honorablefordistraught

[naim 6]

Thank You

[Ulthar 5240]

Thanks! ^^
Do we need to create the python part for ourselves?

@ ASIKOO #honorablefordistraught

[Gurgarath 3691]

Thank you, another excellent release! #honorablefordistraught

[Geoffrey 9309]

gn gn gn gn

[Distraught 9964]

Thank you guys

  

31 minutes ago, Ulthar said:

Thanks! ^^
Do we need to create the python part for ourselves?

@ ASIKOO #honorablefordistraught

Yes, that's not included, it will use the clipping distance by default. You can play with the distance in CArea::GetMaxLoadingDistanceSqr.

Edited August 4, 2022 by Distraught

[Ulthar 5240]

1 hour ago, Distraught said:

Yes, that's not included, it will use the clipping distance by default. You can play with the distance in CArea::GetMaxLoadingDistanceSqr.

Thanks for answer! ^^

[Malin 8]

in CArea::__UpdateLoadedObjectInstances u have new func "emplace" and here it is not used value_type

				if ((*it)->dwType == prt::PROPERTY_TYPE_BUILDING)
					m_GraphicThingInstanceCRCMap.emplace(TGraphicThingInstanceCRCMap::value_type((*it)->pThingInstance, c_pObjectData->dwCRC));

 

like this:

				if ((*it)->dwType == prt::PROPERTY_TYPE_BUILDING)
					m_GraphicThingInstanceCRCMap.emplace((*it)->pThingInstance, c_pObjectData->dwCRC);

[Jimmermania 36]

Hello,i have this error when i compile, any ideas?
BUG

Edited August 28, 2022 by Metin2 Dev
Core X - External 2 Internal

[WeedHex 661]

53 minutes ago, Jimmermania said:

Hello,i have this error when i compile, any ideas?
BUG

#include "StdAfx.h"

Be sure you didn't broke something in the #includes + in the Template declaration.

Edited August 28, 2022 by Metin2 Dev
Core X - External 2 Internal

[Jimmermania 36]

16 hours ago, WeedHex said:

#include "StdAfx.h"

Be sure you didn't broke something in the #includes + in the Template declaration.

These are my includes in file Area.cpp:
 

#include "../eterLib/ResourceManager.h"
#include "../eterLib/StateManager.h"
#include "../effectLib/EffectManager.h"
#include "../SpeedTreeLib/SpeedTreeForestDirectX8.h"
#include "../eterBase/Timer.h"


#include "Area.h"
#include "PropertyManager.h"
#include "Property.h"

#include <boost/algorithm/string.hpp>
#ifdef CAREA_OPTIMIZATION
#include "StdAfx.h"
#include "../effectLib/EffectInstance.h"
#include "../UserInterface/PythonApplication.h"
#include "../UserInterface/StdAfx.h"
#include "../UserInterface/PythonCharacterManager.h"
#include "../UserInterface/PythonBackground.h"
#endif

 

[Helia01 3403]

On 8/4/2022 at 6:17 PM, Ulthar said:

Thanks! ^^
Do we need to create the python part for ourselves?

@ ASIKOO #honorablefordistraught

As far as I understand, to change the download area, you need to change the fFar value from the file PythonApplication.cpp (it is necessary to implement the possibility of changing this value from the settings inside the game)
This can be done by following the example of fNear (MIN_FOG)

[Distraught 9964]

You just need to modify the return value of CArea::GetMaxLoadingDistanceSqr function, that's why I put this into a seperated function so it's easy to implement a slider.

For example interpolate between pfStart and pfFarClip. Just add a new option to CPythonSystem and a slider in python which sets its value and you can use the value of the sliderbar as it is (0.0-1.0).

float CArea::GetMaxLoadingDistanceSqr() const
{
	int peNum;
	float pfStart, pfEnd, pfFarClip;
	CPythonBackground::instance().GetDistanceSetInfo(&peNum, &pfStart, &pfEnd, &pfFarClip);

	// you need to get your value for exmaple from CPythonSystem or from whenever you want
	float fRatio = CPythonSystem::instance().GetLoadingDistance();

	// use one of the interpolation functions i provided
	return LinearInterpolation(pfStart * pfStart, pfFarClip * pfFarClip, fRatio);
}

 

Edited October 22, 2022 by Distraught

[forum80 19]

 

[WeedHex 661]

5 hours ago, forum80 said:

 

Do it x20 times while checking your ram.

[forum80 19]

3 hours ago, WeedHex said:

Do it x20 times while checking your ram.

I tried 30 times, it's 300mb

[WeedHex 661]

There's a problem with this feature in maps composed only by object. (Skipia for eg.)

Do you think is doable to skip the loading of some maps? Or make some workaround...

[icaloxi 36]

i have this ???????

 

Edited April 16, 2023 by icaloxi

[Gurgarath 3691]

51 minutes ago, icaloxi said:

i have this ???????

 

update your sources

[Hornet 0]

On 4/16/2023 at 7:00 PM, Gurgarath said:

update your sources

i have same problem, but for dump_proto when i try to compile it!

error C2146: syntax error : missing ';' before identifier 'T'
_src\client\gamelib\../eterBase/Utils.h(223): error C2146: syntax error : missing ';' before identifier 'LinearInterpolation'
_src\client\gamelib\../eterBase/Utils.h(223): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
_src\client\gamelib\../eterBase/Utils.h(223): error C2143: syntax error : missing ',' before '&'
_src\client\gamelib\../eterBase/Utils.h(226): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
_src\client\gamelib\../eterBase/Utils.h(229): error C2146: syntax error : missing ';' before identifier 'T'
src\client\gamelib\../eterBase/Utils.h(229): error C2146: syntax error : missing ';' before identifier 'HermiteInterpolation'
_src\client\gamelib\../eterBase/Utils.h(229): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
_src\client\gamelib\../eterBase/Utils.h(229): error C2143: syntax error : missing ',' before '&'
_src\client\gamelib\../eterBase/Utils.h(234): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int

 

 

Utils.h

#include "../UserInterface/Locale_inc.h"
#ifdef ENABLE_MAP_OBJECT_OPTIMIZATION
template<typename T>
constexpr T LinearInterpolation(const T& tMin, const T& tMax, float fRatio)
{
    return T((1.0f - fRatio) * tMin + fRatio * tMax);
}

template<typename T>
constexpr T HermiteInterpolation(const T& tMin, const T& tMax, float fRatio)
{
    fRatio = MINMAX(0.0f, fRatio, 1.0f);
    fRatio = fRatio * fRatio * (3.0f - 2.0f * fRatio);
    return LinearInterpolation(tMin, tMax, fRatio);
}
#endif

Edited May 25, 2023 by Hornet

[Gurgarath 3691]

21 hours ago, Hornet said:

i have same problem, but for dump_proto when i try to compile it!

error C2146: syntax error : missing ';' before identifier 'T'
_src\client\gamelib\../eterBase/Utils.h(223): error C2146: syntax error : missing ';' before identifier 'LinearInterpolation'
_src\client\gamelib\../eterBase/Utils.h(223): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
_src\client\gamelib\../eterBase/Utils.h(223): error C2143: syntax error : missing ',' before '&'
_src\client\gamelib\../eterBase/Utils.h(226): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
_src\client\gamelib\../eterBase/Utils.h(229): error C2146: syntax error : missing ';' before identifier 'T'
src\client\gamelib\../eterBase/Utils.h(229): error C2146: syntax error : missing ';' before identifier 'HermiteInterpolation'
_src\client\gamelib\../eterBase/Utils.h(229): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
_src\client\gamelib\../eterBase/Utils.h(229): error C2143: syntax error : missing ',' before '&'
_src\client\gamelib\../eterBase/Utils.h(234): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int

 

 

Utils.h

#include "../UserInterface/Locale_inc.h"
#ifdef ENABLE_MAP_OBJECT_OPTIMIZATION
template<typename T>
constexpr T LinearInterpolation(const T& tMin, const T& tMax, float fRatio)
{
    return T((1.0f - fRatio) * tMin + fRatio * tMax);
}

template<typename T>
constexpr T HermiteInterpolation(const T& tMin, const T& tMax, float fRatio)
{
    fRatio = MINMAX(0.0f, fRatio, 1.0f);
    fRatio = fRatio * fRatio * (3.0f - 2.0f * fRatio);
    return LinearInterpolation(tMin, tMax, fRatio);
}
#endif

You quoted the solution to tell me the problem. Update your sources, simple as, use C++14/17>