[Release] Live Item Giving

#HB · 05/15/2019, 17:53

Hey there,

Recently, I've been doing nothing... :v

Till somebody reminded me of a thing, I really wanted to do in the past... Live item giving! Very interesting, isn't it?

No more "please return to get your reward", but "you've received a reward! hahaha?".

Introduction Video

How can we find that? First thing you might think of can be arena, yeah, that's what I thought of at the beginning too.

Looking for arena reward giving ends up here,

After debugging, you'll find out that, it is a virtual function at 004EE370.

The function is a part of a class object, "CGObjPC". Every client has a "CGObjPC" as for the game server, how can we get a pointer to the "CGObjPC" of the character we want?!

Well, there's a lot of possibilities, the most one making sense is that there's a function that gets the pointer to it by character name, how can we find it?

Oh! Fortress war item reward! It gets the character name of the guild masters, then rewards them! Yes...

You'll end up here,

That's pretty much all you need to find, if you want to reward a specific character, you can parse the "CGObjPC" and GiveItem function arguments, it should contain magic opts, stats, optlevel, count, code..etc

I'll share my chathandler with it, so you can test it like in the video above.

Note: Any addresses you see here are on vsro 1.88, you can find it easily on other files too.

Note 2: std::string here is treated as 28 bytes, as it was compiled by VC80. So, if you're using new compilers, you must edit offsets at OnChatHook, otherwise you'll be disconnected.

Note 3: To dodge disconnecting issues, check if the pointer to CGObjPC is not null then do your GiveItem func.

Special thanks to: sarkolata for giving ideas and ofc florian0

Good luck and have fun.

thebigbody · 05/15/2019, 18:05

now that's interesting

concucu · 05/15/2019, 18:31

disconnect when chat

#HB · 05/15/2019, 18:38

Quote:

Originally Posted by concucu

disconnect when chat

Follow note 2.

XxGhostSpiriTxX · 05/15/2019, 18:46

good jobs friend, Thanks for sharing

concucu · 05/15/2019, 18:48

Quote:

Originally Posted by #HB

Follow note 2.

Code:

void __declspec(naked) OnChatHook(void)
{
	__asm mov edi, [esp + 0x38];
	__asm add esp, 0x4;

	__asm push eax;
	__asm lea eax, [esp + 0x34];
	__asm mov chat, eax;
	__asm lea eax, [esp + 0x50];
	__asm mov charname, eax;
	__asm pop eax;

	__asm pushad;
	HandleChat();
	__asm popad;

	__asm jmp dwNormalChatHookJumpback;
}

What do I need to edit? I use vs100

#HB · 05/15/2019, 19:00

Quote:

Originally Posted by concucu

What do I need to edit? I use vs100

First, check the size of your VS's string.

Code:

printf("My string size (%d).\n", sizeof(std::string));

If it's 24, then the function will be like:

Code:

OnChatHook(void)
{
	__asm mov edi, [esp + 0x38];
	__asm add esp, 0x4;

	__asm push eax;
	__asm lea eax, [esp + 0x38];
	__asm mov chat, eax;
	__asm lea eax, [esp + 0x54];
	__asm mov charname, eax;
	__asm pop eax;

	__asm pushad;
	HandleChat();
	__asm popad;

	__asm jmp dwNormalChatHookJumpback;
}

Sector1337* · 05/15/2019, 20:11

done that recently, but good job and nice release ^^

sarkoplata · 05/16/2019, 00:25

now that's a veeery useful release

hoangphan7 · 05/16/2019, 09:37

Quote:

Originally Posted by #HB

First, check the size of your VS's string.

Code:

printf("My string size (%d).\n", sizeof(std::string));

If it's 24, then the function will be like:

Code:

OnChatHook(void)
{
	__asm mov edi, [esp + 0x38];
	__asm add esp, 0x4;

	__asm push eax;
	__asm lea eax, [esp + 0x38];
	__asm mov chat, eax;
	__asm lea eax, [esp + 0x54];
	__asm mov charname, eax;
	__asm pop eax;

	__asm pushad;
	HandleChat();
	__asm popad;

	__asm jmp dwNormalChatHookJumpback;
}

#HB. How to live update Current Level

speed2019 · 05/16/2019, 13:25

Hello Thank you HB for your release but can you please release something for normal ppls
like me im not a coder

sonzenbi · 05/16/2019, 20:01

Working .
Thx

Laag#82 · 03/13/2020, 14:57

good job

Just need (SQL API) with Table

~~mudik~~ · 06/27/2020, 00:10

Can you share the weapon glow from your video? XD

Laag#82 · 06/27/2020, 04:02

Quote:

Originally Posted by mudik

Can you share the weapon glow from your video? XD

first: Check out the video

second: Video in

PHP Code:



Welcome to ???????

after download client & open pk2

Search

Or

[Guide] Alternative Glows/Effects

PHP Code:



https://www.elitepvpers.com/forum/sro-pserver-guides-releases/2160141-guide-alternative-glows-effects.html

good luck