Hello everyone
, I am a newbie in signature scanning and SDKCall using.
I am trying to make a function in coop mode that when special infecteds all dead and there is only a bot tank in the spot, the bot tank will evade to find a cover instead of continuing approaching to survivors and taking damage.
I have tried to use BossZombiePlayerBot::ShouldRetreatToCover signature
PHP Code:
_DWORD __cdecl BossZombiePlayerBot::ShouldRetreatToCover(BossZombiePlayerBot *__hidden this)
because i could not found any function like ChargerEvade::ChargerEvade(void) or BoomerRetreatToCover::BoomerRetreatToCover(Bo omerRetreatToCover *__hidden this, TerrorNavArea *) on tank.
In linux, the call sequence is probably like this:
PHP Code:
BossZombiePlayerBot::ShouldRetreatToCover -> CDirector::SpecialsShouldRetreatToCover -> CDirectorChallengeMode::SpecialsShouldRetreatToCover
there is a string "cm_SpecialsRetreatToCover" in "CDirectorChallengeMode::SpecialsShouldRetrea tToCover" so we can scan the string to find BossZombiePlayerBot::ShouldRetreatToCover signature.
But in server.dll binary i have tried to find string "cm_SpecialsRetreatToCover" an go to it's xref "sub_1025ADB0", i think it is "CDirectorChallengeMode::SpecialsShouldRetrea tToCover" function but there is no an "Up" xref to "sub_1025ADB0" which mean i couldn't find "CDirector::SpecialsShouldRetreatToCover" signature.
So i am confused in how to find "BossZombiePlayerBot::ShouldRetreatToCove r" signature in windowsT^T
I also have tried to use SDKCall to call "CDirector::SpecialsShouldRetreatToCover" directly in linux server, the code is like this
PHP Code:
#pragma semicolon 1
#pragma newdecls required
#include <sourcemod>
#include <sdktools>
#define GAMEDATA "test"
Handle g_hRetreatToCover;
public void OnPluginStart()
{
Handle g_hGameConf = LoadGameConfigFile("test");
if (g_hGameConf == INVALID_HANDLE)
{
SetFailState("can't read test in gamedata folder");
}
StartPrepSDKCall(SDKCall_Player);
PrepSDKCall_SetFromConf(g_hGameConf, SDKConf_Signature, "BossZombiePlayerBot::ShouldRetreatToCover");
g_hRetreatToCover = EndPrepSDKCall();
if (g_hRetreatToCover == INVALID_HANDLE)
{
SetFailState("can't read signature BossZombiePlayerBot::ShouldRetreatToCover");
}
RegConsoleCmd("sm_ret", Cmd_Retreat);
}
public Action Cmd_Retreat(int client, int args)
{
if (client && client <= MaxClients && IsClientInGame(client) && GetClientTeam(client) == 2 && !IsFakeClient(client))
{
int iTank;
for (int i = 1; i < MaxClients; i++)
{
if (IsValidEntity(i))
{
if (GetEntProp(i, Prop_Send, "m_zombieClass") == 8)
{
iTank = i;
}
}
}
SDKCall(g_hRetreatToCover, iTank);
PrintToChatAll("\x03info：SDKCall finished");
}
}
The test.txt in gamedata folder is like this
PHP Code:
"Games"
{
"left4dead2"
{
"Signatures"
{
/*
* BossZombiePlayerBot::ShouldRetreatToCover(BossZombiePlayerBot *__hidden this)
*/
"BossZombiePlayerBot::ShouldRetreatToCover"
{
"library" "server"
"linux" "@_ZNK19BossZombiePlayerBot20ShouldRetreatToCoverEv"
}
}
}
}
The code has no effect when i spawned a tank and type !ret in the chat, there may be some mistakes in the code because i couldn't use SDKCall proficientlyT^T
May be we could use another method to achieve this function
