roundendblock/src/sdk/meta_api.h
2015-10-12 02:28:12 +06:00

131 lines
5.0 KiB
C

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// 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
#ifdef _MSC_VER
#pragma warning ( disable : 869 )
#endif
//#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) gpMetaGlobals->mres=result; return
#define RETURN_META_VALUE(result, value) gpMetaGlobals->mres=result; return(value)
#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 {
void* pfnGetEntityAPI;
void* pfnGetEntityAPI_Post;
void* pfnGetEntityAPI2;
void* pfnGetEntityAPI2_Post;
void* pfnGetNewDLLFunctions;
void* pfnGetNewDLLFunctions_Post;
void* pfnGetEngineFunctions;
void* pfnGetEngineFunctions_Post;
} META_FUNCTIONS;
// Declared in plugin; referenced in macros.
extern mutil_funcs_t* mUtil;
struct DLL_FUNCTIONS;
struct NEW_DLL_FUNCTIONS;
typedef struct gamedll_funcs_s
{
DLL_FUNCTIONS* dllapi_table;
NEW_DLL_FUNCTIONS* newapi_table;
} gamedll_funcs_t;
extern gamedll_funcs_t* gpGamedllFuncs;
#endif /* META_API_H */