ReChecker/metamod/meta_api.h
2015-11-01 04:50:24 +06:00

233 lines
10 KiB
C

// meta_api.h - description of metamod's DLL interface
/*
* Copyright (c) 2001-2003 Will Day <willday@hpgx.net>
*
* This file is part of Metamod.
*
* Metamod is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at
* your option) any later version.
*
* Metamod is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Metamod; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* In addition, as a special exception, the author gives permission to
* link the code of this program with the Half-Life Game Engine ("HL
* Engine") and Modified Game Libraries ("MODs") developed by Valve,
* L.L.C ("Valve"). You must obey the GNU General Public License in all
* respects for all of the code used other than the HL Engine and MODs
* from Valve. If you modify this file, you may extend this exception
* to your version of the file, but you are not obligated to do so. If
* you do not wish to do so, delete this exception statement from your
* version.
*
*/
#ifndef META_API_H
#define META_API_H
#include "dllapi.h" // GETENTITYAPI_FN, etc
#include "engine_api.h" // GET_ENGINE_FUNCTIONS_FN, etc
#include "plinfo.h" // plugin_info_t, etc
#include "mutil.h" // mutil_funcs_t, etc
#include "osdep.h" // DLLEXPORT, etc
// Version consists of "major:minor", two separate integer numbers.
// Version 1 original
// Version 2 added plugin_info_t **pinfo
// Version 3 init split into query and attach, added detach
// Version 4 added (PLUG_LOADTIME now) to attach
// Version 5 changed mm ifvers int* to string, moved pl ifvers to info
// Version 5:1 added link support for entity "adminmod_timer" (adminmod)
// Version 5:2 added gamedll_funcs to meta_attach() [v1.0-rc2]
// Version 5:3 added mutil_funcs to meta_query() [v1.05]
// Version 5:4 added centersay utility functions [v1.06]
// Version 5:5 added Meta_Init to plugin API [v1.08]
// Version 5:6 added CallGameEntity utility function [v1.09]
// Version 5:7 added GetUserMsgID, GetUserMsgName util funcs [v1.11]
// Version 5:8 added GetPluginPath [v1.11]
// Version 5:9 added GetGameInfo [v1.14]
// Version 5:10 added GINFO_REALDLL_FULLPATH for GetGameInfo [v1.17]
// Version 5:11 added plugin loading and unloading API [v1.18]
// Version 5:12 added util code for checking player query status [v1.18]
// Version 5:13 added cvarquery2 support and api for calling hook tables [v1.19]
#define META_INTERFACE_VERSION "5:13"
#ifdef UNFINISHED
// Version 5:99 added event hook utility functions [v.???]
#define META_INTERFACE_VERSION "5:99"
#endif /* UNFINISHED */
// Flags returned by a plugin's api function.
// NOTE: order is crucial, as greater/less comparisons are made.
typedef enum {
MRES_UNSET = 0,
MRES_IGNORED, // plugin didn't take any action
MRES_HANDLED, // plugin did something, but real function should still be called
MRES_OVERRIDE, // call real function, but use my return value
MRES_SUPERCEDE, // skip real function; use my return value
} META_RES;
// Variables provided to plugins.
typedef struct meta_globals_s {
META_RES mres; // writable; plugin's return flag
META_RES prev_mres; // readable; return flag of the previous plugin called
META_RES status; // readable; "highest" return flag so far
void *orig_ret; // readable; return value from "real" function
void *override_ret; // readable; return value from overriding/superceding plugin
} meta_globals_t;
extern meta_globals_t *gpMetaGlobals;
#define SET_META_RESULT(result) gpMetaGlobals->mres=result
#define RETURN_META(result) \
do { gpMetaGlobals->mres=result; return; } while(0)
#define RETURN_META_VALUE(result, value) \
do { gpMetaGlobals->mres=result; return(value); } while(0)
#define META_RESULT_STATUS gpMetaGlobals->status
#define META_RESULT_PREVIOUS gpMetaGlobals->prev_mres
#define META_RESULT_ORIG_RET(type) *(type *)gpMetaGlobals->orig_ret
#define META_RESULT_OVERRIDE_RET(type) *(type *)gpMetaGlobals->override_ret
// Table of getapi functions, retrieved from each plugin.
typedef struct {
GETENTITYAPI_FN pfnGetEntityAPI;
GETENTITYAPI_FN pfnGetEntityAPI_Post;
GETENTITYAPI2_FN pfnGetEntityAPI2;
GETENTITYAPI2_FN pfnGetEntityAPI2_Post;
GETNEWDLLFUNCTIONS_FN pfnGetNewDLLFunctions;
GETNEWDLLFUNCTIONS_FN pfnGetNewDLLFunctions_Post;
GET_ENGINE_FUNCTIONS_FN pfnGetEngineFunctions;
GET_ENGINE_FUNCTIONS_FN pfnGetEngineFunctions_Post;
} META_FUNCTIONS;
// Pair of function tables provided by game DLL.
typedef struct {
DLL_FUNCTIONS *dllapi_table;
NEW_DLL_FUNCTIONS *newapi_table;
} gamedll_funcs_t;
// Declared in plugin; referenced in macros.
extern gamedll_funcs_t *gpGamedllFuncs;
extern mutil_funcs_t *gpMetaUtilFuncs;
// Tell the dll that we'll be loading it as a metamod plugin, in case it
// needs to do something special prior to the standard query/attach
// procedure. In particular, this will allow for DLL's that can be used as
// both standalone DLL's and metamod plugins. (optional; not required in
// plugin)
C_DLLEXPORT void Meta_Init(void);
typedef void (*META_INIT_FN) (void);
// Get info about plugin, compare meta_interface versions, provide meta
// utility callback functions.
C_DLLEXPORT int Meta_Query(char *interfaceVersion,
plugin_info_t **plinfo,
mutil_funcs_t *pMetaUtilFuncs);
typedef int (*META_QUERY_FN) (char *interfaceVersion,
plugin_info_t **plinfo,
mutil_funcs_t *pMetaUtilFuncs);
// Attach the plugin to the API; get the table of getapi functions; give
// meta_globals and gamedll_funcs.
C_DLLEXPORT int Meta_Attach(PLUG_LOADTIME now,
META_FUNCTIONS *pFunctionTable,
meta_globals_t *pMGlobals,
gamedll_funcs_t *pGamedllFuncs);
typedef int (*META_ATTACH_FN) (PLUG_LOADTIME now,
META_FUNCTIONS *pFunctionTable,
meta_globals_t *pMGlobals,
gamedll_funcs_t *pGamedllFuncs);
// Detach the plugin; tell why and when.
C_DLLEXPORT int Meta_Detach(PLUG_LOADTIME now, PL_UNLOAD_REASON reason);
typedef int (*META_DETACH_FN) (PLUG_LOADTIME now, PL_UNLOAD_REASON reason);
// Standard HL SDK interface function prototypes.
C_DLLEXPORT int GetEntityAPI_Post(DLL_FUNCTIONS *pFunctionTable,
int interfaceVersion );
C_DLLEXPORT int GetEntityAPI2_Post(DLL_FUNCTIONS *pFunctionTable,
int *interfaceVersion );
// Additional SDK-like interface function prototypes.
C_DLLEXPORT int GetNewDLLFunctions_Post(NEW_DLL_FUNCTIONS *pNewFunctionTable, int *interfaceVersion );
C_DLLEXPORT int GetEngineFunctions(enginefuncs_t *pengfuncsFromEngine, int *interfaceVersion);
C_DLLEXPORT int GetEngineFunctions_Post(enginefuncs_t *pengfuncsFromEngine, int *interfaceVersion);
// Convenience macros for accessing GameDLL functions. Note: these talk
// _directly_ to the gamedll, and are not multiplexed through Metamod to
// the other plugins.
// DLL API functions:
#define MDLL_FUNC gpGamedllFuncs->dllapi_table
#define MDLL_GameDLLInit MDLL_FUNC->pfnGameInit
#define MDLL_Spawn MDLL_FUNC->pfnSpawn
#define MDLL_Think MDLL_FUNC->pfnThink
#define MDLL_Use MDLL_FUNC->pfnUse
#define MDLL_Touch MDLL_FUNC->pfnTouch
#define MDLL_Blocked MDLL_FUNC->pfnBlocked
#define MDLL_KeyValue MDLL_FUNC->pfnKeyValue
#define MDLL_Save MDLL_FUNC->pfnSave
#define MDLL_Restore MDLL_FUNC->pfnRestore
#define MDLL_ObjectCollsionBox MDLL_FUNC->pfnAbsBox
#define MDLL_SaveWriteFields MDLL_FUNC->pfnSaveWriteFields
#define MDLL_SaveReadFields MDLL_FUNC->pfnSaveReadFields
#define MDLL_SaveGlobalState MDLL_FUNC->pfnSaveGlobalState
#define MDLL_RestoreGlobalState MDLL_FUNC->pfnRestoreGlobalState
#define MDLL_ResetGlobalState MDLL_FUNC->pfnResetGlobalState
#define MDLL_ClientConnect MDLL_FUNC->pfnClientConnect
#define MDLL_ClientDisconnect MDLL_FUNC->pfnClientDisconnect
#define MDLL_ClientKill MDLL_FUNC->pfnClientKill
#define MDLL_ClientPutInServer MDLL_FUNC->pfnClientPutInServer
#define MDLL_ClientCommand MDLL_FUNC->pfnClientCommand
#define MDLL_ClientUserInfoChanged MDLL_FUNC->pfnClientUserInfoChanged
#define MDLL_ServerActivate MDLL_FUNC->pfnServerActivate
#define MDLL_ServerDeactivate MDLL_FUNC->pfnServerDeactivate
#define MDLL_PlayerPreThink MDLL_FUNC->pfnPlayerPreThink
#define MDLL_PlayerPostThink MDLL_FUNC->pfnPlayerPostThink
#define MDLL_StartFrame MDLL_FUNC->pfnStartFrame
#define MDLL_ParmsNewLevel MDLL_FUNC->pfnParmsNewLevel
#define MDLL_ParmsChangeLevel MDLL_FUNC->pfnParmsChangeLevel
#define MDLL_GetGameDescription MDLL_FUNC->pfnGetGameDescription
#define MDLL_PlayerCustomization MDLL_FUNC->pfnPlayerCustomization
#define MDLL_SpectatorConnect MDLL_FUNC->pfnSpectatorConnect
#define MDLL_SpectatorDisconnect MDLL_FUNC->pfnSpectatorDisconnect
#define MDLL_SpectatorThink MDLL_FUNC->pfnSpectatorThink
#define MDLL_Sys_Error MDLL_FUNC->pfnSys_Error
#define MDLL_PM_Move MDLL_FUNC->pfnPM_Move
#define MDLL_PM_Init MDLL_FUNC->pfnPM_Init
#define MDLL_PM_FindTextureType MDLL_FUNC->pfnPM_FindTextureType
#define MDLL_SetupVisibility MDLL_FUNC->pfnSetupVisibility
#define MDLL_UpdateClientData MDLL_FUNC->pfnUpdateClientData
#define MDLL_AddToFullPack MDLL_FUNC->pfnAddToFullPack
#define MDLL_CreateBaseline MDLL_FUNC->pfnCreateBaseline
#define MDLL_RegisterEncoders MDLL_FUNC->pfnRegisterEncoders
#define MDLL_GetWeaponData MDLL_FUNC->pfnGetWeaponData
#define MDLL_CmdStart MDLL_FUNC->pfnCmdStart
#define MDLL_CmdEnd MDLL_FUNC->pfnCmdEnd
#define MDLL_ConnectionlessPacket MDLL_FUNC->pfnConnectionlessPacket
#define MDLL_GetHullBounds MDLL_FUNC->pfnGetHullBounds
#define MDLL_CreateInstancedBaselines MDLL_FUNC->pfnCreateInstancedBaselines
#define MDLL_InconsistentFile MDLL_FUNC->pfnInconsistentFile
#define MDLL_AllowLagCompensation MDLL_FUNC->pfnAllowLagCompensation
// NEW API functions:
#define MNEW_FUNC gpGamedllFuncs->newapi_table
#define MNEW_OnFreeEntPrivateData MNEW_FUNC->pfnOnFreeEntPrivateData
#define MNEW_GameShutdown MNEW_FUNC->pfnGameShutdown
#define MNEW_ShouldCollide MNEW_FUNC->pfnShouldCollide
#define MNEW_CvarValue MNEW_FUNC->pfnCvarValue
#define MNEW_CvarValue2 MNEW_FUNC->pfnCvarValue2
#endif /* META_API_H */