sourcemod/core/GameHooks.h
2016-04-26 23:18:47 -04:00

134 lines
3.9 KiB
C++

// vim: set ts=4 sw=4 tw=99 noet :
// =============================================================================
// SourceMod
// Copyright (C) 2004-2015 AlliedModders LLC. All rights reserved.
// =============================================================================
//
// This program is free software; you can redistribute it and/or modify it under
// the terms of the GNU General Public License, version 3.0, as published by the
// Free Software Foundation.
//
// This program 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
// this program. If not, see <http://www.gnu.org/licenses/>.
//
// As a special exception, AlliedModders LLC gives you permission to link the
// code of this program (as well as its derivative works) to "Half-Life 2," the
// "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
// by the Valve Corporation. You must obey the GNU General Public License in
// all respects for all other code used. Additionally, AlliedModders LLC grants
// this exception to all derivative works. AlliedModders LLC defines further
// exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
// or <http://www.sourcemod.net/license.php>.
#ifndef _INCLUDE_SOURCEMOD_PROVIDER_GAME_HOOKS_H_
#define _INCLUDE_SOURCEMOD_PROVIDER_GAME_HOOKS_H_
// Needed for CEntityIndex, edict_t, etc.
#include <stdint.h>
#include <stddef.h>
#include <eiface.h>
#include <iserverplugin.h>
#include <amtl/am-refcounting.h>
#include <amtl/am-vector.h>
#include <amtl/am-function.h>
class ConVar;
class CCommand;
struct CCommandContext;
#if SOURCE_ENGINE >= SE_ORANGEBOX
# define DISPATCH_ARGS const CCommand &command
# define DISPATCH_PROLOGUE
#else
# define DISPATCH_ARGS
# define DISPATCH_PROLOGUE CCommand command
#endif
namespace SourceMod {
// Describes the mechanism in which client cvar queries are implemented.
enum class ClientCvarQueryMode {
Unavailable,
DLL,
VSP
};
class ICommandArgs;
class CommandHook : public ke::Refcounted<CommandHook>
{
public:
// return false to RETURN_META(MRES_IGNORED), or true to SUPERCEDE.
typedef ke::Lambda<bool(int, const ICommandArgs *)> Callback;
public:
CommandHook(ConCommand *cmd, const Callback &callback, bool post);
~CommandHook();
void Dispatch(DISPATCH_ARGS);
void Zap();
private:
int hook_id_;
Callback callback_;
};
class GameHooks
{
public:
GameHooks();
void Start();
void Shutdown();
void OnVSPReceived();
ClientCvarQueryMode GetClientCvarQueryMode() const {
return client_cvar_query_mode_;
}
public:
ke::RefPtr<CommandHook> AddCommandHook(ConCommand *cmd, const CommandHook::Callback &callback);
ke::RefPtr<CommandHook> AddPostCommandHook(ConCommand *cmd, const CommandHook::Callback &callback);
int CommandClient() const {
return last_command_client_;
}
private:
// Static callback that Valve's ConVar object executes when the convar's value changes.
#if SOURCE_ENGINE >= SE_ORANGEBOX
static void OnConVarChanged(ConVar *pConVar, const char *oldValue, float flOldValue);
#else
static void OnConVarChanged(ConVar *pConVar, const char *oldValue);
#endif
// Callback for when StartQueryCvarValue() has finished.
#if SOURCE_ENGINE != SE_DARKMESSIAH
void OnQueryCvarValueFinished(QueryCvarCookie_t cookie, edict_t *pPlayer, EQueryCvarValueStatus result,
const char *cvarName, const char *cvarValue);
#endif
void SetCommandClient(int client);
private:
class HookList : public ke::Vector<int>
{
public:
HookList &operator += (int hook_id) {
this->append(hook_id);
return *this;
}
};
HookList hooks_;
ClientCvarQueryMode client_cvar_query_mode_;
int last_command_client_;
};
} // namespace SourceMod
#endif // _INCLUDE_SOURCEMOD_PROVIDER_GAME_HOOKS_H_