Add pr_dlls.h & fix GetEntityInit() return type (#228)

* Add pr_dlls.h

* fix GetEntityInit hook return type

* add getApiType(ENTITYINIT) type cast

* remove extra cast from callNext()

* indent fix

reapi/include/cssdk/engine/pr_dlls.h

@@ -0,0 +1,51 @@
+/*
+*
+*    This program 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.
+*
+*    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, 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.
+*
+*/
+
+#pragma once
+
+#include "maintypes.h"
+#include "eiface.h"
+
+const int MAX_EXTENSION_DLL = 50;
+
+typedef struct functiontable_s
+{
+	uint32 pFunction;
+	char *pFunctionName;
+} functiontable_t;
+
+typedef struct extensiondll_s
+{
+	void *lDLLHandle;
+	functiontable_t *functionTable;
+	int functionCount;
+} extensiondll_t;
+
+typedef void(*ENTITYINIT)(struct entvars_s *);
+typedef void(*DISPATCHFUNCTION)(struct entvars_s *, void *);
+typedef void(*FIELDIOFUNCTION)(SAVERESTOREDATA *, const char *, void *, TYPEDESCRIPTION *, int);

reapi/include/cssdk/engine/rehlds_api.h

@@ -33,6 +33,7 @@
 #include "FlightRecorder.h"
 #include "interface.h"
 #include "model.h"
+#include "pr_dlls.h"
 
 #define REHLDS_API_VERSION_MAJOR 3
 #define REHLDS_API_VERSION_MINOR 11
@@ -206,8 +207,8 @@ typedef IHookChain<bool, IGameClient*, bool> IRehldsHook_SV_ShouldSendConsistenc
 typedef IHookChainRegistry<bool, IGameClient*, bool> IRehldsHookRegistry_SV_ShouldSendConsistencyList;
 
 //GetEntityInit hook
-typedef IHookChain<struct entvars_s *, char *> IRehldsHook_GetEntityInit;
+typedef IHookChain<ENTITYINIT, char *> IRehldsHook_GetEntityInit;
-typedef IHookChainRegistry<struct entvars_s *, char *> IRehldsHookRegistry_GetEntityInit;
+typedef IHookChainRegistry<ENTITYINIT, char *> IRehldsHookRegistry_GetEntityInit;
 
 //SV_EmitPings hook
 typedef IHookChain<void, IGameClient *, sizebuf_t *> IRehldsHook_SV_EmitPings;

reapi/src/hook_callback.cpp

@@ -63,14 +63,14 @@ void SV_WriteFullClientUpdate(IRehldsHook_SV_WriteFullClientUpdate *chain, IGame
 	SV_WriteFullClientUpdate_AMXX(&data, client, (size_t)buffer, receiver);
 }
 
-entvars_t *GetEntityInit(IRehldsHook_GetEntityInit *chain, char *classname)
+ENTITYINIT GetEntityInit(IRehldsHook_GetEntityInit *chain, char *classname)
 {
 	auto original = [chain](char *_classname)
 	{
-		return (entvars_t *)chain->callNext(_classname);
+		return chain->callNext(_classname);
 	};
 
-	return callForward<entvars_t *>(RH_GetEntityInit, original, classname);
+	return callForward<ENTITYINIT>(RH_GetEntityInit, original, classname);
 }
 
 void ClientConnected(IRehldsHook_ClientConnected* chain, IGameClient* cl)

reapi/src/hook_callback.h

@@ -52,6 +52,7 @@ inline AType getApiType(edict_t *)		{ return ATYPE_EDICT; }
 inline AType getApiType(entvars_t *)    { return ATYPE_EVARS; }
 inline AType getApiType(bool)           { return ATYPE_BOOL; }
 inline AType getApiType(Vector)         { return ATYPE_VECTOR; }
+inline AType getApiType(ENTITYINIT)     { return ATYPE_INTEGER; }
 
 template<typename T>
 inline AType getApiType(T *) { return ATYPE_INTEGER; }
@@ -344,7 +345,7 @@ struct SV_WriteFullClientUpdate_args_t
 using SV_WriteFullClientUpdate_t = hookdata_t<IRehldsHook_SV_WriteFullClientUpdate *, SV_WriteFullClientUpdate_args_t &>;
 void SV_WriteFullClientUpdate_AMXX(SV_WriteFullClientUpdate_t *data, IGameClient *client, size_t buffer, IGameClient *receiver);
 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);
+ENTITYINIT GetEntityInit(IRehldsHook_GetEntityInit *chain, char *classname);
 
 struct SV_EmitPings_args_t
 {