/**

  * vim: set ts=4 :

  * =============================================================================

  * SourceMod SDKTools Extension

  * Copyright (C) 2004-2008 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>.

  *

  * Version: $Id$

  */

 #include "extension.h"

 #include <datamap.h>

 #define SIZEOF_VARIANT_T		20

 ICallWrapper *g_pAcceptInput = NULL;

 unsigned char g_Variant_t[SIZEOF_VARIANT_T] = {0};

 #define ENTINDEX_TO_CBASEENTITY(ref, buffer) \

 	buffer = gamehelpers->ReferenceToEntity(ref); \

 	if (!buffer) \

 	{ \

 		return pContext->ThrowNativeError("Entity %d (%d) is not a CBaseEntity", gamehelpers->ReferenceToIndex(ref), ref); \

 	}

 /* Hack to init the variant_t object for the first time */

 class VariantFirstTimeInit

 {

 public:

 	VariantFirstTimeInit()

 	{

 		*(unsigned int *)(&g_Variant_t[12]) = INVALID_EHANDLE_INDEX;

 	}

 } g_VariantFirstTimeInit;

 inline void _init_variant_t()

 {

 	unsigned char *vptr = g_Variant_t;

 	*(int *)vptr = 0;

 	vptr += sizeof(int)*3;

 	*(unsigned long *)vptr = INVALID_EHANDLE_INDEX;

 	vptr += sizeof(unsigned long);

 	*(fieldtype_t *)vptr = FIELD_VOID;

 }

 static cell_t AcceptEntityInput(IPluginContext *pContext, const cell_t *params)

 {

 	if (!g_pAcceptInput)

 	{

 		int offset;

 		if (!g_pGameConf->GetOffset("AcceptInput", &offset))

 		{

 			return pContext->ThrowNativeError("\"AcceptEntityInput\" not supported by this mod");

 		}

 		PassInfo pass[6];

 		pass[0].type = PassType_Basic;

 		pass[0].flags = PASSFLAG_BYVAL;

 		pass[0].size = sizeof(const char *);

 		pass[1].type = pass[2].type = PassType_Basic;

 		pass[1].flags = pass[2].flags = PASSFLAG_BYVAL;

 		pass[1].size = pass[2].size = sizeof(CBaseEntity *);

 		pass[3].type = PassType_Object;

 		pass[3].flags = PASSFLAG_BYVAL|PASSFLAG_OCTOR|PASSFLAG_ODTOR|PASSFLAG_OASSIGNOP;

 		pass[3].size = SIZEOF_VARIANT_T;

 		pass[4].type = PassType_Basic;

 		pass[4].flags = PASSFLAG_BYVAL;

 		pass[4].size = sizeof(int);

 		pass[5].type = PassType_Basic;

 		pass[5].flags = PASSFLAG_BYVAL;

 		pass[5].size = sizeof(bool);

 		if (!(g_pAcceptInput=g_pBinTools->CreateVCall(offset, 0, 0, &pass[5], pass, 5)))

 		{

 			pContext->ThrowNativeError("\"AcceptEntityInput\" wrapper failed to initialized");

 		}

 	}

 	CBaseEntity *pActivator, *pCaller, *pDest;

 	char *inputname;

 	unsigned char vstk[sizeof(void *) + sizeof(const char *) + sizeof(CBaseEntity *)*2 + SIZEOF_VARIANT_T + sizeof(int)];

 	unsigned char *vptr = vstk;

 	ENTINDEX_TO_CBASEENTITY(params[1], pDest);

 	pContext->LocalToString(params[2], &inputname);

 	if (params[3] == -1)

 	{

 		pActivator = NULL;

 	} else {

 		ENTINDEX_TO_CBASEENTITY(params[3], pActivator);

 	}

 	if (params[4] == -1)

 	{

 		pCaller = NULL;

 	} else {

 		ENTINDEX_TO_CBASEENTITY(params[4], pCaller);

 	}

 	*(void **)vptr = pDest;

 	vptr += sizeof(void *);

 	*(const char **)vptr = inputname;

 	vptr += sizeof(const char *);

 	*(CBaseEntity **)vptr = pActivator;

 	vptr += sizeof(CBaseEntity *);

 	*(CBaseEntity **)vptr = pCaller;

 	vptr += sizeof(CBaseEntity *);

 	memcpy(vptr, g_Variant_t, SIZEOF_VARIANT_T);

 	vptr += SIZEOF_VARIANT_T;

 	*(int *)vptr = params[5];

 	bool ret;

 	g_pAcceptInput->Execute(vstk, &ret);

 	_init_variant_t();

 	return (ret) ? 1 : 0;

 }

 static cell_t SetVariantBool(IPluginContext *pContext, const cell_t *params)

 {

 	unsigned char *vptr = g_Variant_t;

 	*(bool *)vptr = (params[1]) ? true : false;

 	vptr += sizeof(int)*3 + sizeof(unsigned long);

 	*(fieldtype_t *)vptr = FIELD_BOOLEAN;

 	return 1;

 }

 static cell_t SetVariantString(IPluginContext *pContext, const cell_t *params)

 {

 	char *str;

 	unsigned char *vptr = g_Variant_t;

 	pContext->LocalToString(params[1], &str);

 	*(string_t *)vptr = MAKE_STRING(str);

 	vptr += sizeof(int)*3 + sizeof(unsigned long);

 	*(fieldtype_t *)vptr = FIELD_STRING;

 	return 1;

 }

 static cell_t SetVariantInt(IPluginContext *pContext, const cell_t *params)

 {

 	unsigned char *vptr = g_Variant_t;

 	*(int *)vptr = params[1];

 	vptr += sizeof(int)*3 + sizeof(unsigned long);

 	*(fieldtype_t *)vptr = FIELD_INTEGER;

 	return 1;

 }

 static cell_t SetVariantFloat(IPluginContext *pContext, const cell_t *params)

 {

 	unsigned char *vptr = g_Variant_t;

 	*(float *)vptr = sp_ctof(params[1]);

 	vptr += sizeof(int)*3 + sizeof(unsigned long);

 	*(fieldtype_t *)vptr = FIELD_FLOAT;

 	return 1;

 }

 static cell_t SetVariantVector3D(IPluginContext *pContext, const cell_t *params)

 {

 	cell_t *val;

 	unsigned char *vptr = g_Variant_t;

 	pContext->LocalToPhysAddr(params[1], &val);

 	*(float *)vptr = sp_ctof(val[0]);

 	vptr += sizeof(float);

 	*(float *)vptr = sp_ctof(val[1]);

 	vptr += sizeof(float);

 	*(float *)vptr = sp_ctof(val[2]);

 	vptr += sizeof(float) + sizeof(unsigned long);

 	*(fieldtype_t *)vptr = FIELD_VECTOR;

 	return 1;

 }

 static cell_t SetVariantPosVector3D(IPluginContext *pContext, const cell_t *params)

 {

 	cell_t *val;

 	unsigned char *vptr = g_Variant_t;

 	pContext->LocalToPhysAddr(params[1], &val);

 	*(float *)vptr = sp_ctof(val[0]);

 	vptr += sizeof(float);

 	*(float *)vptr = sp_ctof(val[1]);

 	vptr += sizeof(float);

 	*(float *)vptr = sp_ctof(val[2]);

 	vptr += sizeof(float) + sizeof(unsigned long);

 	*(fieldtype_t *)vptr = FIELD_POSITION_VECTOR;

 	return 1;

 }

 static cell_t SetVariantColor(IPluginContext *pContext, const cell_t *params)

 {

 	cell_t *val;

 	unsigned char *vptr = g_Variant_t;

 	pContext->LocalToPhysAddr(params[1], &val);

 	*(unsigned char *)vptr = val[0];

 	vptr += sizeof(unsigned char);

 	*(unsigned char *)vptr = val[1];

 	vptr += sizeof(unsigned char);

 	*(unsigned char *)vptr = val[2];

 	vptr += sizeof(unsigned char);

 	*(unsigned char *)vptr = val[3];

 	vptr += sizeof(unsigned char) + sizeof(int)*2 + sizeof(unsigned long);

 	*(fieldtype_t *)vptr = FIELD_COLOR32;

 	return 1;

 }

 static cell_t SetVariantEntity(IPluginContext *pContext, const cell_t *params)

 {

 	CBaseEntity *pEntity;

 	unsigned char *vptr = g_Variant_t;

 	CBaseHandle bHandle;

 	ENTINDEX_TO_CBASEENTITY(params[1], pEntity);

 	bHandle = reinterpret_cast<IHandleEntity *>(pEntity)->GetRefEHandle();

 	vptr += sizeof(int)*3;

 	*(unsigned long *)vptr = (unsigned long)(bHandle.ToInt());

 	vptr += sizeof(unsigned long);

 	*(fieldtype_t *)vptr = FIELD_EHANDLE;

 	return 1;

 }

 sp_nativeinfo_t g_EntInputNatives[] =

 {

 	{"AcceptEntityInput",			AcceptEntityInput},

 	{"SetVariantBool",				SetVariantBool},

 	{"SetVariantString",			SetVariantString},

 	{"SetVariantInt",				SetVariantInt},

 	{"SetVariantFloat",				SetVariantFloat},

 	{"SetVariantVector3D",			SetVariantVector3D},

 	{"SetVariantPosVector3D",		SetVariantPosVector3D},

 	{"SetVariantColor",				SetVariantColor},

 	{"SetVariantEntity",			SetVariantEntity},

 	{NULL,							NULL},

 };