d530d0c726
--HG-- extra : convert_revision : svn%3A39bc706e-5318-0410-9160-8a85361fbb7c/trunk%402317
164 lines
4.4 KiB
C++
164 lines
4.4 KiB
C++
/**
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* vim: set ts=4 :
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* =============================================================================
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* SourceMod Team Fortress 2 Extension
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* Copyright (C) 2004-2008 AlliedModders LLC. All rights reserved.
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* =============================================================================
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*
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* This program is free software; you can redistribute it and/or modify it under
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* the terms of the GNU General Public License, version 3.0, as published by the
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* Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* As a special exception, AlliedModders LLC gives you permission to link the
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* code of this program (as well as its derivative works) to "Half-Life 2," the
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* "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
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* by the Valve Corporation. You must obey the GNU General Public License in
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* all respects for all other code used. Additionally, AlliedModders LLC grants
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* this exception to all derivative works. AlliedModders LLC defines further
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* exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
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* or <http://www.sourcemod.net/license.php>.
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*
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* Version: $Id$
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*/
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#include "criticals.h"
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IServerGameEnts *gameents = NULL;
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CDetour *calcIsAttackCriticalDetour = NULL;
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CDetour *calcIsAttackCriticalMeleeDetour = NULL;
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CDetour *calcIsAttackCriticalKnifeDetour = NULL;
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IForward *g_critForward = NULL;
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void InitialiseDetours()
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{
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calcIsAttackCriticalDetour = CDetourManager::CreateDetour((void *)&TempDetour, 0, "CalcCritical");
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calcIsAttackCriticalMeleeDetour = CDetourManager::CreateDetour((void *)&TempDetour, 0, "CalcCriticalMelee");
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calcIsAttackCriticalKnifeDetour = CDetourManager::CreateDetour((void *)&TempDetour, 0, "CalcCriticalKnife");
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bool HookCreated = false;
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if (calcIsAttackCriticalDetour != NULL)
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{
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calcIsAttackCriticalDetour->EnableDetour();
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HookCreated = true;
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}
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if (calcIsAttackCriticalMeleeDetour != NULL)
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{
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calcIsAttackCriticalMeleeDetour->EnableDetour();
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HookCreated = true;
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}
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if (calcIsAttackCriticalKnifeDetour != NULL)
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{
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calcIsAttackCriticalKnifeDetour->EnableDetour();
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HookCreated = true;
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}
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if (!HookCreated)
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{
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g_pSM->LogError(myself, "No critical hit forwards could be initialized - Disabled critical hit hooks");
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return;
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}
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}
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int CheckBaseHandle(CBaseHandle &hndl)
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{
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if (!hndl.IsValid())
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{
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return -1;
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}
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int index = hndl.GetEntryIndex();
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edict_t *pStoredEdict;
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pStoredEdict = engine->PEntityOfEntIndex(index);
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if (pStoredEdict == NULL)
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{
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return -1;
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}
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IServerEntity *pSE = pStoredEdict->GetIServerEntity();
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if (pSE == NULL)
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{
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return -1;
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}
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if (pSE->GetRefEHandle() != hndl)
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{
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return -1;
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}
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return index;
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}
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DetourReturn TempDetour(void *pWeapon)
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{
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edict_t *pEdict = gameents->BaseEntityToEdict((CBaseEntity *)pWeapon);
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if (!pEdict)
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{
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g_pSM->LogMessage(myself, "Entity Error");
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return false;
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}
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sm_sendprop_info_t info;
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if (!gamehelpers->FindSendPropInfo(pEdict->GetNetworkable()->GetServerClass()->GetName(), "m_hOwnerEntity", &info))
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{
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g_pSM->LogMessage(myself, "Offset Error");
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return false;
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}
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if (!g_critForward)
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{
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g_pSM->LogMessage(myself, "Invalid Forward");
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return false;
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}
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int returnValue=0;
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CBaseHandle &hndl = *(CBaseHandle *)((uint8_t *)pWeapon + info.actual_offset);
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int index = CheckBaseHandle(hndl);
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g_critForward->PushCell(index); //Client index
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g_critForward->PushCell(engine->IndexOfEdict(pEdict)); // Weapon index
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g_critForward->PushString(pEdict->GetClassName()); //Weapon classname
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g_critForward->PushCellByRef(&returnValue); //return value
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cell_t result = 0;
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g_critForward->Execute(&result);
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if (result)
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{
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RETURN_DETOUR_VALUE(DETOUR_RESULT_OVERRIDE, returnValue);
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}
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else
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{
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RETURN_DETOUR_VALUE(DETOUR_RESULT_IGNORED, returnValue);
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}
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}
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void RemoveDetours()
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{
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CDetourManager::DeleteDetour(calcIsAttackCriticalDetour);
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CDetourManager::DeleteDetour(calcIsAttackCriticalMeleeDetour);
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CDetourManager::DeleteDetour(calcIsAttackCriticalKnifeDetour);
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}
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