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https://github.com/s1lentq/ReGameDLL_CS.git
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122 lines
4.2 KiB
C++
122 lines
4.2 KiB
C++
/*
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*
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* This program 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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* This program 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 this program; 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 this program 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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*/
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#pragma once
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template<typename t_ret, typename ...t_args>
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class IHookChain {
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protected:
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virtual ~IHookChain() {}
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public:
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virtual t_ret callNext(t_args... args) = 0;
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virtual t_ret callOriginal(t_args... args) = 0;
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};
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template<typename t_ret, typename t_class, typename ...t_args>
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class IHookChainClass {
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protected:
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virtual ~IHookChainClass() {}
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public:
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virtual t_ret callNext(t_class *, t_args... args) = 0;
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virtual t_ret callOriginal(t_class *, t_args... args) = 0;
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};
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template<typename ...t_args>
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class IVoidHookChain
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{
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protected:
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virtual ~IVoidHookChain() {}
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public:
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virtual void callNext(t_args... args) = 0;
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virtual void callOriginal(t_args... args) = 0;
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};
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template<typename t_class, typename ...t_args>
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class IVoidHookChainClass
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{
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protected:
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virtual ~IVoidHookChainClass() {}
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public:
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virtual void callNext(t_class *, t_args... args) = 0;
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virtual void callOriginal(t_class *, t_args... args) = 0;
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};
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// Specifies priorities for hooks call order in the chain.
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// For equal priorities first registered hook will be called first.
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enum HookChainPriority
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{
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HC_PRIORITY_UNINTERRUPTABLE = 255, // Hook will be called before other hooks.
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HC_PRIORITY_HIGH = 192, // Hook will be called before hooks with default priority.
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HC_PRIORITY_DEFAULT = 128, // Default hook call priority.
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HC_PRIORITY_MEDIUM = 64, // Hook will be called after hooks with default priority.
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HC_PRIORITY_LOW = 0, // Hook will be called after all other hooks.
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};
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// Hook chain registry(for hooks [un]registration)
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template<typename t_ret, typename ...t_args>
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class IHookChainRegistry {
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public:
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typedef t_ret(*hookfunc_t)(IHookChain<t_ret, t_args...>*, t_args...);
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virtual void registerHook(hookfunc_t hook, int priority = HC_PRIORITY_DEFAULT) = 0;
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virtual void unregisterHook(hookfunc_t hook) = 0;
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};
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// Hook chain registry(for hooks [un]registration)
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template<typename t_ret, typename t_class, typename ...t_args>
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class IHookChainRegistryClass {
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public:
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typedef t_ret(*hookfunc_t)(IHookChainClass<t_ret, t_class, t_args...>*, t_class *, t_args...);
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virtual void registerHook(hookfunc_t hook, int priority = HC_PRIORITY_DEFAULT) = 0;
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virtual void unregisterHook(hookfunc_t hook) = 0;
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};
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// Hook chain registry(for hooks [un]registration)
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template<typename ...t_args>
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class IVoidHookChainRegistry {
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public:
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typedef void(*hookfunc_t)(IVoidHookChain<t_args...>*, t_args...);
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virtual void registerHook(hookfunc_t hook, int priority = HC_PRIORITY_DEFAULT) = 0;
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virtual void unregisterHook(hookfunc_t hook) = 0;
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};
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// Hook chain registry(for hooks [un]registration)
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template<typename t_class, typename ...t_args>
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class IVoidHookChainRegistryClass {
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public:
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typedef void(*hookfunc_t)(IVoidHookChainClass<t_class, t_args...>*, t_class *, t_args...);
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virtual void registerHook(hookfunc_t hook, int priority = HC_PRIORITY_DEFAULT) = 0;
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virtual void unregisterHook(hookfunc_t hook) = 0;
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};
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