Implement SV_EmitPings() hook (#212)

* Implement SV_EmitPings hook

* Remove sizebuf_t param and add description

* Change REHLDS_API_VERSION_MINOR

* Update rehlds_api.h

* FIX comment in reapi_engine_const.inc

* virtual SV_EmitPings() order fix

Co-authored-by: Sergey Shorokhov <wopox1337@ya.ru>

reapi/extra/amxmodx/scripting/include/reapi_engine_const.inc

@@ -65,6 +65,12 @@ enum EngineFunc
 	* Params:       (const client)
 	*/
 	RH_ClientConnected,
+
+	/*
+	* Description:  Called when client it's in the scoreboard
+	* Params:       (const this)
+	*/
+	RH_SV_EmitPings
 };
 
 /**

reapi/include/cssdk/engine/rehlds_api.h

@@ -35,7 +35,7 @@
 #include "model.h"
 
 #define REHLDS_API_VERSION_MAJOR 3
-#define REHLDS_API_VERSION_MINOR 0
+#define REHLDS_API_VERSION_MINOR 11
 
 //Steam_NotifyClientConnect hook
 typedef IHookChain<qboolean, IGameClient*, const void*, unsigned int> IRehldsHook_Steam_NotifyClientConnect;
@@ -202,13 +202,25 @@ typedef IVoidHookChain<> IRehldsHook_SV_Frame;
 typedef IVoidHookChainRegistry<> IRehldsHookRegistry_SV_Frame;
 
 //SV_ShouldSendConsistencyList hook
-typedef IHookChain<bool, IGameClient *, bool> IRehldsHook_SV_ShouldSendConsistencyList;
+typedef IHookChain<bool, IGameClient*, bool> IRehldsHook_SV_ShouldSendConsistencyList;
-typedef IHookChainRegistry<bool, IGameClient *, bool> IRehldsHookRegistry_SV_ShouldSendConsistencyList;
+typedef IHookChainRegistry<bool, IGameClient*, bool> IRehldsHookRegistry_SV_ShouldSendConsistencyList;
 
 //GetEntityInit hook
 typedef IHookChain<struct entvars_s *, char *> IRehldsHook_GetEntityInit;
 typedef IHookChainRegistry<struct entvars_s *, char *> IRehldsHookRegistry_GetEntityInit;
 
+//SV_EmitPings hook
+typedef IHookChain<void, IGameClient *, sizebuf_t *> IRehldsHook_SV_EmitPings;
+typedef IHookChainRegistry<void, IGameClient *, sizebuf_t *> IRehldsHookRegistry_SV_EmitPings;
+
+//ED_Alloc hook
+typedef IHookChain<edict_t *> IRehldsHook_ED_Alloc;
+typedef IHookChainRegistry<edict_t *> IRehldsHookRegistry_ED_Alloc;
+
+//ED_Free hook
+typedef IVoidHookChain<edict_t *> IRehldsHook_ED_Free;
+typedef IVoidHookChainRegistry<edict_t *> IRehldsHookRegistry_ED_Free;
+
 class IRehldsHookchains {
 public:
 	virtual ~IRehldsHookchains() { }
@@ -256,6 +268,9 @@ public:
 	virtual IRehldsHookRegistry_SV_Frame* SV_Frame() = 0;
 	virtual IRehldsHookRegistry_SV_ShouldSendConsistencyList* SV_ShouldSendConsistencyList() = 0;
 	virtual IRehldsHookRegistry_GetEntityInit* GetEntityInit() = 0;
+	virtual IRehldsHookRegistry_SV_EmitPings* SV_EmitPings() = 0;
+	virtual IRehldsHookRegistry_ED_Alloc* ED_Alloc() = 0;
+	virtual IRehldsHookRegistry_ED_Free* ED_Free() = 0;
 };
 
 struct RehldsFuncs_t {

reapi/src/hook_callback.cpp

@@ -83,6 +83,24 @@ void ClientConnected(IRehldsHook_ClientConnected* chain, IGameClient* cl)
 	callVoidForward(RH_ClientConnected, original, cl->GetId() + 1);
 }
 
+void SV_EmitPings_AMXX(SV_EmitPings_t* data, IGameClient* cl)
+{
+	auto original = [data](int _cl)
+	{
+		data->m_chain->callNext(g_RehldsSvs->GetClient(_cl - 1), data->m_args.message);
+	};
+
+	callVoidForward(RH_SV_EmitPings, original, cl->GetId() + 1);
+}
+
+void SV_EmitPings(IRehldsHook_SV_EmitPings *chain, IGameClient *cl, sizebuf_t *msg)
+{
+
+	SV_EmitPings_args_t args(cl, msg);
+	SV_EmitPings_t data(chain, args);
+	SV_EmitPings_AMXX(&data, cl);
+}
+
 /*
 * ReGameDLL functions
 */

reapi/src/hook_callback.h

@@ -346,6 +346,18 @@ void SV_WriteFullClientUpdate_AMXX(SV_WriteFullClientUpdate_t *data, IGameClient
 void SV_WriteFullClientUpdate(IRehldsHook_SV_WriteFullClientUpdate *chain, IGameClient *client, char *buffer, size_t maxlen, sizebuf_t *sb, IGameClient *receiver);
 entvars_s *GetEntityInit(IRehldsHook_GetEntityInit *chain, char *classname);
 
+struct SV_EmitPings_args_t
+{
+	SV_EmitPings_args_t(IGameClient* cl, sizebuf_t *msg) : client(cl), message(msg) {}
+
+	IGameClient *client;
+	sizebuf_t* message;
+};
+
+using SV_EmitPings_t = hookdata_t<IRehldsHook_SV_EmitPings *, SV_EmitPings_args_t &>;
+void SV_EmitPings_AMXX(SV_EmitPings_t *data, IGameClient *client);
+void SV_EmitPings(IRehldsHook_SV_EmitPings *chain, IGameClient *client, sizebuf_t *msg);
+
 // regamedll functions
 int GetForceCamera(IReGameHook_GetForceCamera *chain, CBasePlayer *pObserver);
 void PlayerBlind(IReGameHook_PlayerBlind *chain, CBasePlayer *pPlayer, entvars_t *pevInflictor, entvars_t *pevAttacker, float fadeTime, float fadeHold, int alpha, Vector& color);

reapi/src/hook_list.cpp

@@ -88,7 +88,8 @@ hook_t hooklist_engine[] = {
 	ENG(Cvar_DirectSet),
 	ENG(SV_WriteFullClientUpdate, _AMXX),
 	ENG(GetEntityInit),
-	ENG(ClientConnected)
+	ENG(ClientConnected),
+	ENG(SV_EmitPings, _AMXX)
 };
 
 #define DLL(h,...) { {}, {}, #h, "ReGameDLL", [](){ return api_cfg.hasReGameDLL(); }, ((!(RG_##h & (MAX_REGION_RANGE - 1)) ? regfunc::current_cell = 1, true : false) || (RG_##h & (MAX_REGION_RANGE - 1)) == regfunc::current_cell++) ? regfunc(h##__VA_ARGS__) : regfunc(#h#__VA_ARGS__), [](){ g_ReGameHookchains->h()->registerHook(&h); }, [](){ g_ReGameHookchains->h()->unregisterHook(&h); }, false}

reapi/src/hook_list.h

@@ -99,7 +99,8 @@ enum EngineFunc
 	RH_Cvar_DirectSet,
 	RH_SV_WriteFullClientUpdate,
 	RH_GetEntityInit,
-	RH_ClientConnected
+	RH_ClientConnected,
+	RH_SV_EmitPings
 
 	// [...]
 };