mirror of
https://github.com/alliedmodders/amxmodx.git
synced 2024-10-18 08:17:01 +03:00
0dc6a4a5dd
Also did the following: * Removed -fPIC from all Linux makefiles * AMXX build tool now also moved over to VS 2005 * AMXX build tool binary renamed from "AMXXRelease" to "builder" * MSVC project files now can use environment variables to point to the paths of the Metamod headers and HL SDK: $(METAMOD) and $(HLSDK) respectively
486 lines
14 KiB
C++
486 lines
14 KiB
C++
/* Ham Sandwich
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* Copyright 2007
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* By the AMX Mod X Development Team
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*
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* Ham Sandwich is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at
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* your option) any later version.
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*
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* Ham Sandwich is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Ham Sandwich; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* In addition, as a special exception, the author gives permission to
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* link the code of Ham Sandwich with the Half-Life Game Engine ("HL
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* Engine") and Modified Game Libraries ("MODs") developed by Valve,
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* L.L.C ("Valve"). You must obey the GNU General Public License in all
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* respects for all of the code used other than the HL Engine and MODs
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* from Valve. If you modify this file, you may extend this exception
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* to your version of the file, but you are not obligated to do so. If
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* you do not wish to do so, delete this exception statement from your
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* version.
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*/
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#include <stdio.h>
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#include <stddef.h>
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#include <stdlib.h>
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#include <string.h>
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#include <extdll.h>
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#include "amxxmodule.h"
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#include "CVector.h"
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#include "hook.h"
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#include "forward.h"
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#include "hook_callbacks.h"
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#include "call_funcs.h"
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#include "hook_create.h"
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#include "offsets.h"
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#include "hooklist.h"
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#include "ham_utils.h"
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OffsetManager Offsets;
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bool gDoForwards=true;
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CVector<Hook *> hooks[HAM_LAST_ENTRY_DONT_USE_ME_LOL];
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#define V(__KEYNAME, __STUFF__) 0, 0, __KEYNAME, RT_##__STUFF__, PC_##__STUFF__, reinterpret_cast<void *>(Hook_##__STUFF__), Create_##__STUFF__, Call_##__STUFF__
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hook_t hooklist[] =
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{
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{ V("spawn", Void_Void) },
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{ V("precache", Void_Void) },
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{ V("keyvalue", Void_Int) },
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{ V("objectcaps", Int_Void) },
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{ V("activate", Void_Void) },
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{ V("setobjectcollisionbox", Void_Void) },
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{ V("classify", Int_Void) },
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{ V("deathnotice", Void_Entvar) },
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{ V("traceattack", Void_Entvar_Float_Vector_Trace_Int) },
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{ V("takedamage", Int_Entvar_Entvar_Float_Int) },
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{ V("takehealth", Int_Float_Int) },
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{ V("killed", Void_Entvar_Int) },
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{ V("bloodcolor", Int_Void) },
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{ V("tracebleed", Void_Float_Vector_Trace_Int) },
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{ V("istriggered", Int_Cbase) },
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{ V("mymonsterpointer", Cbase_Void) },
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{ V("mysquadmonsterpointer", Cbase_Void) },
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{ V("gettogglestate", Int_Void) },
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{ V("addpoints", Void_Int_Int) },
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{ V("addpointstoteam", Void_Int_Int) },
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{ V("addplayeritem", Int_Cbase) },
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{ V("removeplayeritem", Int_Cbase) },
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{ V("giveammo", Int_Int_Str_Int) },
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{ V("getdelay", Float_Void) },
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{ V("ismoving", Int_Void) },
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{ V("overridereset", Void_Void) },
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{ V("damagedecal", Int_Int) },
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{ V("settogglestate", Void_Int) },
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{ V("startsneaking", Void_Void) },
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{ V("stopsneaking", Void_Void) },
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{ V("oncontrols", Int_Entvar) },
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{ V("issneaking", Int_Void) },
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{ V("isalive", Int_Void) },
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{ V("isbspmodel", Int_Void) },
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{ V("reflectgauss", Int_Void) },
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{ V("hastarget", Int_Int) },
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{ V("isinworld", Int_Void) },
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{ V("isplayer", Int_Void) },
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{ V("isnetclient", Int_Void) },
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{ V("teamid", Str_Void) },
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{ V("getnexttarget", Cbase_Void) },
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{ V("think", Void_Void) },
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{ V("touch", Void_Cbase) },
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{ V("use", Void_Cbase_Cbase_Int_Float) },
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{ V("blocked", Void_Cbase) },
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{ V("respawn", Cbase_Void) },
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{ V("updateowner", Void_Void) },
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{ V("fbecomeprone", Int_Void) },
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{ V("center", Vector_Void) },
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{ V("eyeposition", Vector_Void) },
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{ V("earposition", Vector_Void) },
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{ V("bodytarget", Vector_pVector) },
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{ V("illumination", Int_Void) },
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{ V("fvisible", Int_Cbase) },
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{ V("fvecvisible", Int_pVector) },
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/** Entity specific hooks **/
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/* CBasePlayer */
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{ V("player_jump", Void_Void) },
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{ V("player_duck", Void_Void) },
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{ V("player_prethink", Void_Void) },
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{ V("player_postthink", Void_Void) },
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{ V("player_getgunposition", Vector_Void) },
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{ V("player_shouldfadeondeath", Int_Void) },
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{ V("player_impulsecommands", Void_Void) },
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{ V("player_updateclientdata", Void_Void) },
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/* CBasePlayerItem */
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{ V("item_addtoplayer", Int_Cbase) },
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{ V("item_addduplicate", Int_Cbase) },
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{ V("item_candeploy", Int_Void) },
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{ V("item_deploy", Int_Void) },
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{ V("item_canholster", Int_Void) },
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{ V("item_holster", Void_Int) },
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{ V("item_updateiteminfo", Void_Void) },
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{ V("item_preframe", Void_Void) },
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{ V("item_postframe", Void_Void) },
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{ V("item_drop", Void_Void) },
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{ V("item_kill", Void_Void) },
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{ V("item_attachtoplayer", Void_Cbase) },
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{ V("item_primaryammoindex", Int_Void) },
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{ V("item_secondaryammoindex", Int_Void) },
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{ V("item_updateclientdata", Int_Cbase) },
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{ V("item_getweaponptr", Cbase_Void) },
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{ V("item_itemslot", Int_Void) },
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/* CBasePlayerWeapon */
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{ V("weapon_extractammo", Int_Cbase) },
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{ V("weapon_extractclipammo", Int_Cbase) },
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{ V("weapon_addweapon", Int_Void) },
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{ V("weapon_playemptysound", Int_Void) },
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{ V("weapon_resetemptysound", Void_Void) },
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{ V("weapon_sendweaponanim", Void_Int_Int_Int) },
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{ V("weapon_isusable", Int_Void) },
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{ V("weapon_primaryattack", Void_Void) },
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{ V("weapon_secondaryattack", Void_Void) },
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{ V("weapon_reload", Void_Void) },
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{ V("weapon_weaponidle", Void_Void) },
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{ V("weapon_retireweapon", Void_Void) },
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{ V("weapon_shouldweaponidle", Int_Void) },
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{ V("weapon_usedecrement", Int_Void) },
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/** Mod specific hooks **/
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/* The Specialists */
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{ V("ts_breakablerespawn", Int_Int) },
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{ V("ts_canusedthroughwalls", Int_Void) },
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{ V("ts_respawnwait", Deprecated) },
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/* Counter-Strike */
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{ V("cstrike_restart", Void_Void) },
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{ V("cstrike_roundrespawn", Void_Void) },
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{ V("cstrike_item_candrop", Int_Void) },
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{ V("cstrike_item_getmaxspeed", Float_Void) },
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/* Day of Defeat */
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{ V("dod_roundrespawn", Void_Void) },
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{ V("dod_roundrespawnent", Void_Void) },
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{ V("dod_roundstore", Void_Void) },
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{ V("dod_areasetindex", Void_Int) },
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{ V("dod_areasendstatus", Void_Cbase) },
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{ V("dod_getstate", Int_Void) },
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{ V("dod_getstateent", Int_Cbase) },
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{ V("dod_item_candrop", Int_Void) },
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/* Team Fortress Classic */
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{ V("tfc_engineeruse", Int_Cbase) },
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{ V("tfc_finished", Void_Void) },
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{ V("tfc_empexplode", Void_Entvar_Float_Float) },
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{ V("tfc_calcempdmgrad", Int_pFloat_pFloat) },
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{ V("tfc_takeempblast", Void_Entvar) },
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{ V("tfc_empremove", Void_Void) },
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{ V("tfc_takeconcussionblast", Void_Entvar_Float) },
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{ V("tfc_concuss", Void_Entvar) },
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/* Earth's Special Forces */
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{ V("esf_isenvmodel", Int_Void) },
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{ V("esf_takedamage2", Int_Entvar_Entvar_Float_Float_Int) },
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/* Natural-Selection */
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{ V("ns_getpointvalue", Int_Void) },
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{ V("ns_awardkill", Void_Entvar) },
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{ V("ns_resetentity", Void_Void) },
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{ V("ns_updateonremove", Void_Void) },
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{ V("ts_giveslowmul", Void_Void) },
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{ V("ts_goslow", Void_Float_Int) },
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{ V("ts_inslow", Int_Void) },
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{ V("ts_isobjective", Int_Void) },
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{ V("ts_enableobjective", Void_Int) },
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{ V("ts_onfreeentprivatedata", Void_Void) },
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{ V("ts_shouldcollide", Int_Cbase) },
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};
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void FailPlugin(AMX *amx, int id, int err, const char *reason)
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{
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int fwd=MF_RegisterSPForwardByName(amx, "__fatal_ham_error", FP_CELL, FP_CELL, FP_STRING, FP_DONE);
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MF_ExecuteForward(fwd, id, err, reason);
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MF_UnregisterSPForward(fwd);
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}
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static cell AMX_NATIVE_CALL RegisterHam(AMX *amx, cell *params)
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{
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// Make sure the function we're requesting is within bounds
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int func=params[1];
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int post=params[4];
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CHECK_FUNCTION(func);
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char *function=MF_GetAmxString(amx, params[3], 0, NULL);
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char *classname=MF_GetAmxString(amx, params[2], 1, NULL);
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// Check the entity
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// create an entity, assign it the gamedll's class, hook it and destroy it
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edict_t *Entity=CREATE_ENTITY();
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CALL_GAME_ENTITY(PLID,classname,&Entity->v);
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if (Entity->pvPrivateData == NULL)
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{
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REMOVE_ENTITY(Entity);
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MF_LogError(amx, AMX_ERR_NATIVE,"Failed to retrieve classtype for \"%s\", hook for \"%s\" not active.",classname,function);
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return 0;
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}
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void **vtable=GetVTable(Entity->pvPrivateData, Offsets.GetBase());
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REMOVE_ENTITY(Entity);
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if (vtable == NULL)
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{
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MF_LogError(amx, AMX_ERR_NATIVE,"Failed to retrieve vtable for \"%s\", hook for \"%s\" not active.",classname,function);
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return 0;
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}
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// Verify that the function is valid
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// Don't fail the plugin if this fails, just emit a normal error
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int fwd=hooklist[func].makefunc(amx, function);
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if (fwd == -1)
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{
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MF_LogError(amx, AMX_ERR_NATIVE, "Function %s not found.", function);
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return 0;
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}
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// We've passed all tests...
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int **ivtable=(int **)vtable;
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void *vfunction=(void *)ivtable[hooklist[func].vtid];
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// Check the list of this function's hooks, see if the function we have is a hook
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CVector<Hook *>::iterator end=hooks[func].end();
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for (CVector<Hook *>::iterator i=hooks[func].begin();
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i!=end;
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++i)
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{
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if ((*i)->tramp == vfunction)
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{
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// Yes, this function is hooked
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Forward *pfwd=new Forward(fwd);
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if (post)
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{
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(*i)->post.push_back(pfwd);
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}
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else
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{
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(*i)->pre.push_back(pfwd);
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}
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return reinterpret_cast<cell>(pfwd);
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}
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}
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// If we got here, the function is not hooked
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Hook *hook=new Hook(vtable, hooklist[func].vtid, hooklist[func].targetfunc, hooklist[func].isvoid, hooklist[func].paramcount, classname);
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hooks[func].push_back(hook);
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Forward *pfwd=new Forward(fwd);
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if (post)
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{
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hook->post.push_back(pfwd);
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}
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else
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{
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hook->pre.push_back(pfwd);
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}
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return reinterpret_cast<cell>(pfwd);
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}
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// RegisterHamFromEntity(Ham:function, EntityId, const Callback[], Post=0);
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static cell AMX_NATIVE_CALL RegisterHamFromEntity(AMX *amx, cell *params)
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{
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// Make sure the function we're requesting is within bounds
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int func=params[1];
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int post=params[4];
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CHECK_FUNCTION(func);
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char *function=MF_GetAmxString(amx, params[3], 0, NULL);
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int entid=params[2];
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char classname[64];
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// Check the entity
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edict_t *Entity=INDEXENT_NEW(entid);
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if (Entity->pvPrivateData == NULL)
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{
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MF_LogError(amx, AMX_ERR_NATIVE,"Failed to retrieve classtype for entity id \"%d\", hook for \"%s\" not active.",entid,function);
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return 0;
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}
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void **vtable=GetVTable(Entity->pvPrivateData, Offsets.GetBase());
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if (vtable == NULL)
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{
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MF_LogError(amx, AMX_ERR_NATIVE,"Failed to retrieve vtable for entity id \"%d\", hook for \"%s\" not active.",entid,function);
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return 0;
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}
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// Verify that the function is valid
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// Don't fail the plugin if this fails, just emit a normal error
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int fwd=hooklist[func].makefunc(amx, function);
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if (fwd == -1)
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{
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MF_LogError(amx, AMX_ERR_NATIVE, "Function %s not found.", function);
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return 0;
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}
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// We've passed all tests...
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int **ivtable=(int **)vtable;
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void *vfunction=(void *)ivtable[hooklist[func].vtid];
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// Check the list of this function's hooks, see if the function we have is a hook
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CVector<Hook *>::iterator end=hooks[func].end();
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for (CVector<Hook *>::iterator i=hooks[func].begin();
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i!=end;
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++i)
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{
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if ((*i)->tramp == vfunction)
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{
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// Yes, this function is hooked
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Forward *pfwd=new Forward(fwd);
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if (post)
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{
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(*i)->post.push_back(pfwd);
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}
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else
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{
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(*i)->pre.push_back(pfwd);
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}
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return reinterpret_cast<cell>(pfwd);
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}
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}
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// Note down the classname for the given class
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// It may very well be wrong (such as lots of TS weapons have the same classname)
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// but it's the best we can do, and better than nothing.
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// (only used for display)
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snprintf(classname, sizeof(classname) - 1, "%s", STRING(Entity->v.classname));
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// If we got here, the function is not hooked
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Hook *hook=new Hook(vtable, hooklist[func].vtid, hooklist[func].targetfunc, hooklist[func].isvoid, hooklist[func].paramcount, classname);
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hooks[func].push_back(hook);
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Forward *pfwd=new Forward(fwd);
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if (post)
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{
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hook->post.push_back(pfwd);
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}
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else
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{
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hook->pre.push_back(pfwd);
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}
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return reinterpret_cast<cell>(pfwd);
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}
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static cell AMX_NATIVE_CALL ExecuteHam(AMX *amx, cell *params)
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{
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int func=params[1];
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CHECK_FUNCTION(func);
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gDoForwards=false;
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return hooklist[func].call(amx, params);
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}
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static cell AMX_NATIVE_CALL ExecuteHamB(AMX *amx, cell *params)
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{
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int func=params[1];
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CHECK_FUNCTION(func);
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gDoForwards=true;
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return hooklist[func].call(amx, params);
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}
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static cell AMX_NATIVE_CALL IsHamValid(AMX *amx, cell *params)
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{
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int func=params[1];
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if (func >= 0 &&
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func < HAM_LAST_ENTRY_DONT_USE_ME_LOL &&
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hooklist[func].isset!=0)
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{
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return 1;
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}
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return 0;
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}
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static cell AMX_NATIVE_CALL DisableHamForward(AMX *amx, cell *params)
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{
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Forward *fwd=reinterpret_cast<Forward *>(params[1]);
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if (fwd == 0)
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{
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MF_LogError(amx, AMX_ERR_NATIVE, "Invalid HamHook handle.");
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return -1;
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}
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fwd->state=FSTATE_STOP;
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return 0;
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}
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static cell AMX_NATIVE_CALL EnableHamForward(AMX *amx, cell *params)
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{
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Forward *fwd=reinterpret_cast<Forward *>(params[1]);
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if (fwd == 0)
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{
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MF_LogError(amx, AMX_ERR_NATIVE, "Invalid HamHook handle.");
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return -1;
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}
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fwd->state=FSTATE_OK;
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return 0;
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}
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AMX_NATIVE_INFO RegisterNatives[] =
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{
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{ "RegisterHam", RegisterHam },
|
|
{ "RegisterHamFromEntity", RegisterHamFromEntity },
|
|
{ "ExecuteHam", ExecuteHam },
|
|
{ "ExecuteHamB", ExecuteHamB },
|
|
{ "IsHamValid", IsHamValid },
|
|
{ "DisableHamForward", DisableHamForward },
|
|
{ "EnableHamForward", EnableHamForward },
|
|
|
|
{ NULL, NULL }
|
|
};
|