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HLMetaModOfficial/core/ISmmPluginExt.h

187 lines
6.5 KiB
C++

/*
* vim: set ts=4 sw=4 tw=99 noet :
* ======================================================
* Metamod:Source
* Copyright (C) 2004-2009 AlliedModders LLC and authors.
* All rights reserved.
* ======================================================
*
* This software is provided 'as-is', without any express or implied warranty.
* In no event will the authors be held liable for any damages arising from
* the use of this software.
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must not
* claim that you wrote the original software. If you use this software in a
* product, an acknowledgment in the product documentation would be
* appreciated but is not required.
* 2. Altered source versions must be plainly marked as such, and must not be
* misrepresented as being the original software.
* 3. This notice may not be removed or altered from any source distribution.
*/
#ifndef _INCLUDE_METAMOD_SOURCE_PLUGIN_EXT_H_
#define _INCLUDE_METAMOD_SOURCE_PLUGIN_EXT_H_
#include <stddef.h>
// Interface return status, binary-compatible with HL2SDK's IFACE_OK and IFACE_FAILED.
enum
{
META_IFACE_OK = 0,
META_IFACE_FAILED
};
/**
* @file ISmmPluginExt.h Provides an alternate method for loading plugins,
* without needing to include the default headers and all their Half-Life baggage.
*
* @brief Definitions for extended plugin loading.
*/
#define SOURCE_ENGINE_UNKNOWN 0 /**< Could not determine the engine version */
#define SOURCE_ENGINE_ORIGINAL 1 /**< Original Source Engine (used by The Ship) */
#define SOURCE_ENGINE_EPISODEONE 2 /**< Episode 1 Source Engine (second major SDK) */
#define SOURCE_ENGINE_ORANGEBOX 3 /**< Orange Box Source Engine (third major SDK) */
#define SOURCE_ENGINE_LEFT4DEAD 4 /**< Left 4 Dead */
#define SOURCE_ENGINE_DARKMESSIAH 5 /**< Dark Messiah Multiplayer (based on original engine) */
#define SOURCE_ENGINE_ORANGEBOXVALVE 6 /**< Orange Box Source Engine for Valve games (TF2/DOD:S/HL2DM) */
#define SOURCE_ENGINE_LEFT4DEAD2 7 /**< Left 4 Dead 2 */
#define SOURCE_ENGINE_ALIENSWARM 8 /**< Alien Swarm */
#define SOURCE_ENGINE_BLOODYGOODTIME 9 /**< Bloody Good Time */
#define SOURCE_ENGINE_EYE 10 /**< E.Y.E Divine Cybermancy */
#define SOURCE_ENGINE_PORTAL2 11 /**< Portal 2 */
#define SOURCE_ENGINE_CSGO 12 /**< Counter-Strike: Global Offensive */
#define SOURCE_ENGINE_CSS 13 /**< Counter-Strike: Source (sometimes older version of Orange Box Valve) */
#define METAMOD_PLAPI_VERSION 15 /**< Version of this header file */
#define METAMOD_PLAPI_NAME "ISmmPlugin" /**< Name of the plugin interface */
namespace SourceMM
{
class ISmmPlugin;
class ISmmAPI;
/**
* @brief Used to uniquely identify plugins.
*/
typedef int PluginId;
#define METAMOD_FAIL_API_V1 7 /**< Minimum API version to detect for V1 */
#define METAMOD_FAIL_API_V2 14 /**< Minimum API version to detect for V2 */
/**
* Use this to instantiate a plugin that will always fail.
* This class definition works against major API versions 1 and 2.
*/
class ISmmFailPlugin
{
public:
/**
* @brief You must return METAMOD_FAIL_API_V1 or METAMOD_FAIL_API_V2 here,
* depending on which Metamod:Source version you detected.
*/
virtual int GetApiVersion() = 0;
/**
* @brief Do not change.
*/
virtual ~ISmmFailPlugin()
{
}
/**
* @brief Return false here -- fill in the error buffer appropriately.
*
* Do not ever return true. If you do, MM:S will crash because the class layout is
* incomplete against ISmmPlugin.
*
* @param id Ignore.
* @param ismm Ignore.
* @param error Error buffer (must be filled).
* @param maxlength Maximum size of error buffer.
* @param late Ignore.
* @return Must return false.
*/
virtual bool Load(PluginId id, ISmmAPI *ismm, char *error, size_t maxlength, bool late) =0;
};
}
typedef SourceMM::ISmmPlugin METAMOD_PLUGIN;
/**
* @brief Contains version information.
*/
struct MetamodVersionInfo
{
int api_major; /**< ISmmAPI major version */
int api_minor; /**< ISmmAPI minor version */
int sh_iface; /**< SourceHook interface version */
int sh_impl; /**< SourceHook implementation version */
int pl_min; /**< Plugin API minimum version */
int pl_max; /**< Plugin API maximum version */
int source_engine; /**< Source Engine version (SOURCE_* constants) */
const char *game_dir; /**< Game directory name */
/**
* @brief Returns the game folder.
*
* @return Game folder, or NULL if not available on this version
* of Metamod:Source.
*/
inline const char *GetGameDir() const
{
if (pl_max >= 15)
return NULL;
return game_dir;
}
};
/**
* @brief Contains information about loading a plugin.
*/
struct MetamodLoaderInfo
{
const char *pl_file; /**< File path to the plugin being loaded. */
const char *pl_path; /**< Folder path containing the plugin. */
};
/**
* @brief If a function of this type is exposed as "CreateInterface_MMS", then
* Metamod:Source will attempt to call this function before calling
* CreateInterface. If this function returns a valid ISmmPlugin pointer, then
* CreateInterface will not be called.
*
* This is useful for implementing a mini-loader plugin for multiple versions.
*
* @param mvi MetamodVersionInfo structure.
* @param mli MetamodLoaderInfo structure.
* @return ISmmAPI pointer, or NULL if none.
*/
typedef METAMOD_PLUGIN *(*METAMOD_FN_LOAD)(const MetamodVersionInfo *mvi,
const MetamodLoaderInfo *mli);
/**
* @brief If a function of this type is exposed as "UnloadInterface_MMS", then
* Metamod:Source will attempt to call this function after calling
* ISmmAPI::Unload(), and before closing the library. This lets loader plugins
* clean up before exiting.
*
* Note: This function will be ignored unless CreateInterfce_MMS was exposed.
* It may be called even if ISmmAPI::Unload() could not be called.
*/
typedef void (*METAMOD_FN_UNLOAD)();
/**
* @brief Original type of load function. CreateInterfaceFn from Valve.
*
* Plugins will expose this as "CreateInterface".
*/
typedef void *(*METAMOD_FN_ORIG_LOAD)(const char *, int *);
#endif //INCLUDE_METAMOD_SOURCE_PLUGIN_EXT_H_