1 files changed, 794 insertions, 0 deletions

diff --git a/source/Plugin_NewLua.cpp b/source/Plugin_NewLua.cpp
new file mode 100644
index 000000000..061441735
--- /dev/null
+++ b/source/Plugin_NewLua.cpp
@@ -0,0 +1,794 @@
+
+#include "Globals.h"  // NOTE: MSVC stupidness requires this to be the same across all modules
+
+#define LUA_USE_POSIX
+#include "Plugin_NewLua.h"
+#include "MCLogger.h"
+#include "LuaItems.h"
+
+extern "C"
+{
+#include "lualib.h"
+}
+
+#include "tolua++.h"
+#include "Bindings.h"
+#include "ManualBindings.h"
+
+#ifdef _WIN32
+// #include "wdirent.h"
+#else
+#include <dirent.h>
+#endif
+
+
+
+
+
+extern bool report_errors(lua_State* lua, int status);
+
+
+
+
+
+cPlugin_NewLua::cPlugin_NewLua( const char* a_PluginName )
+	: m_LuaState( 0 )
+	, cWebPlugin()
+{
+	m_Directory = a_PluginName;
+}
+
+
+
+
+
+cPlugin_NewLua::~cPlugin_NewLua()
+{
+	cCSLock Lock( m_CriticalSection );
+
+	if( m_LuaState )
+	{
+		lua_close( m_LuaState );
+		m_LuaState = 0;
+	}
+}
+
+
+
+
+
+bool cPlugin_NewLua::Initialize()
+{
+	cCSLock Lock( m_CriticalSection );
+	if( !m_LuaState ) 
+	{	
+		m_LuaState = lua_open();
+		luaL_openlibs( m_LuaState );
+		tolua_AllToLua_open(m_LuaState);
+		ManualBindings::Bind( m_LuaState );
+	}
+
+	std::string PluginPath = FILE_IO_PREFIX + GetLocalDirectory() + "/";
+
+	// Load all files for this plugin, and execute them
+	AStringList Files = GetDirectoryContents(PluginPath.c_str());
+	for (AStringList::const_iterator itr = Files.begin(); itr != Files.end(); ++itr)
+	{
+		if (itr->rfind(".lua") == AString::npos)
+		{
+			continue;
+		}
+		AString Path = PluginPath + *itr;
+		int s = luaL_loadfile(m_LuaState, Path.c_str() );
+		if( report_errors( m_LuaState, s ) )
+		{
+			LOGERROR("Can't load plugin %s because of an error in file %s", m_Directory.c_str(), Path.c_str() );
+			lua_close( m_LuaState );
+			m_LuaState = 0;
+			return false;
+		}
+
+		s = lua_pcall(m_LuaState, 0, LUA_MULTRET, 0);
+		if( report_errors( m_LuaState, s ) )
+		{
+			LOGERROR("Error in plugin %s in file %s", m_Directory.c_str(), Path.c_str() );
+			lua_close( m_LuaState );
+			m_LuaState = 0;
+			return false;
+		}
+	}  // for itr - Files[]
+
+	// Call intialize function
+	if( !PushFunction("Initialize") )
+	{
+		lua_close( m_LuaState );
+		m_LuaState = 0;
+		return false;
+	}
+
+	tolua_pushusertype(m_LuaState, this, "cPlugin_NewLua");
+	
+	if( !CallFunction(1, 1, "Initialize") ) 
+	{
+		lua_close( m_LuaState );
+		m_LuaState = 0;
+		return false;
+	}
+
+	if( !lua_isboolean( m_LuaState, -1 ) )
+	{
+		LOGWARN("Error in plugin %s Initialize() must return a boolean value!", m_Directory.c_str() );
+		lua_close( m_LuaState );
+		m_LuaState = 0;
+		return false;
+	}
+
+	bool bSuccess = (tolua_toboolean( m_LuaState, -1, 0) > 0);
+	return bSuccess;
+}
+
+
+
+
+
+AString cPlugin_NewLua::GetLocalDirectory(void) const
+{
+	return std::string("Plugins/") + m_Directory;
+}
+
+
+
+
+
+void cPlugin_NewLua::OnDisable()
+{
+	cCSLock Lock( m_CriticalSection );
+	if( !PushFunction("OnDisable", false) ) // false = don't log error if not found
+		return;
+
+	CallFunction(0, 0, "OnDisable");
+}
+
+
+
+
+
+void cPlugin_NewLua::Tick(float a_Dt)
+{
+	cCSLock Lock( m_CriticalSection );
+	if( !PushFunction("Tick") )
+		return;
+
+	tolua_pushnumber( m_LuaState, a_Dt );
+
+	CallFunction(1, 0, "Tick");
+}
+
+
+
+
+
+bool cPlugin_NewLua::OnCollectPickup(cPlayer * a_Player, cPickup * a_Pickup)
+{
+	cCSLock Lock(m_CriticalSection);
+	if (!PushFunction("OnCollectPickup"))
+	{
+		return false;
+	}
+
+	tolua_pushusertype(m_LuaState, a_Player, "cPlayer");
+	tolua_pushusertype(m_LuaState, a_Pickup, "cPickup");
+
+	if (!CallFunction(2, 1, "OnCollectPickup"))
+	{
+		return false;
+	}
+
+	return (tolua_toboolean(m_LuaState, -1, 0) > 0);
+}
+
+
+
+
+
+bool cPlugin_NewLua::OnDisconnect(cPlayer * a_Player, const AString & a_Reason)
+{
+	cCSLock Lock(m_CriticalSection);
+	if (!PushFunction("OnDisconnect"))
+	{
+		return false;
+	}
+
+	tolua_pushusertype(m_LuaState, a_Player, "cPlayer");
+	tolua_pushstring  (m_LuaState, a_Reason.c_str());
+
+	if (!CallFunction(2, 1, "OnDisconnect"))
+	{
+		return false;
+	}
+
+	return (tolua_toboolean( m_LuaState, -1, 0) > 0);
+}
+
+
+
+
+
+bool cPlugin_NewLua::OnBlockPlace(cPlayer * a_Player, int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace, const cItem & a_HeldItem)
+{
+	cCSLock Lock(m_CriticalSection);
+	if (!PushFunction("OnBlockPlace"))
+	{
+		return false;
+	}
+
+	tolua_pushusertype(m_LuaState, a_Player, "cPlayer");
+	tolua_pushnumber  (m_LuaState, a_BlockX);
+	tolua_pushnumber  (m_LuaState, a_BlockY);
+	tolua_pushnumber  (m_LuaState, a_BlockZ);
+	tolua_pushnumber  (m_LuaState, a_BlockFace);
+	tolua_pushusertype(m_LuaState, (void *)&a_HeldItem, "cItem");
+
+	if (!CallFunction(6, 1, "OnBlockPlace"))
+	{
+		return false;
+	}
+
+	return (tolua_toboolean( m_LuaState, -1, 0) > 0);
+}
+
+
+
+
+
+bool cPlugin_NewLua::OnBlockDig(cPlayer * a_Player, int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace, char a_Status, BLOCKTYPE a_OldBlock, NIBBLETYPE a_OldMeta)
+{
+	cCSLock Lock(m_CriticalSection);
+	if (!PushFunction("OnBlockDig"))
+	{
+		return false;
+	}
+
+	tolua_pushusertype(m_LuaState, a_Player, "cPlayer");
+	tolua_pushnumber  (m_LuaState, a_BlockX);
+	tolua_pushnumber  (m_LuaState, a_BlockY);
+	tolua_pushnumber  (m_LuaState, a_BlockZ);
+	tolua_pushnumber  (m_LuaState, a_BlockFace);
+	tolua_pushnumber  (m_LuaState, a_Status);
+	tolua_pushnumber  (m_LuaState, a_OldBlock);
+	tolua_pushnumber  (m_LuaState, a_OldMeta);
+
+	if (!CallFunction(8, 1, "OnBlockDig"))
+	{
+		return false;
+	}
+
+	return (tolua_toboolean( m_LuaState, -1, 0) > 0);
+}
+
+
+
+
+
+bool cPlugin_NewLua::OnChat(cPlayer * a_Player, const AString & a_Message)
+{
+	cCSLock Lock(m_CriticalSection);
+	if (!PushFunction("OnChat"))
+	{
+		return false;
+	}
+
+	tolua_pushusertype(m_LuaState, a_Player, "cPlayer");
+	tolua_pushstring  (m_LuaState, a_Message.c_str());
+
+	if (!CallFunction(2, 1, "OnChat"))
+	{
+		return false;
+	}
+
+	return (tolua_toboolean( m_LuaState, -1, 0) > 0);
+}
+
+
+
+
+
+bool cPlugin_NewLua::OnLogin(cClientHandle * a_Client, int a_ProtocolVersion, const AString & a_Username)
+{
+	cCSLock Lock( m_CriticalSection );
+	if( !PushFunction("OnLogin") )
+		return false;
+
+	tolua_pushusertype (m_LuaState, a_Client, "cClientHandle");
+	tolua_pushnumber   (m_LuaState, a_ProtocolVersion);
+	tolua_pushcppstring(m_LuaState, a_Username);
+
+	if (!CallFunction(3, 1, "OnLogin"))
+		return false;
+
+	bool bRetVal = (tolua_toboolean( m_LuaState, -1, 0) > 0);
+	return bRetVal;
+}
+
+
+
+
+
+void cPlugin_NewLua::OnPlayerSpawn( cPlayer* a_Player )
+{
+	cCSLock Lock( m_CriticalSection );
+	if( !PushFunction("OnPlayerSpawn") )
+		return;
+
+	tolua_pushusertype(m_LuaState, a_Player, "cPlayer");
+
+	CallFunction(1, 0, "OnPlayerSpawn");
+}
+
+
+
+
+
+bool cPlugin_NewLua::OnPlayerJoin( cPlayer* a_Player )
+{
+	cCSLock Lock( m_CriticalSection );
+	if( !PushFunction("OnPlayerJoin") )
+		return false;
+
+	tolua_pushusertype(m_LuaState, a_Player, "cPlayer");
+
+	if( !CallFunction(1, 1, "OnPlayerJoin") )
+		return false;
+
+	bool bRetVal = (tolua_toboolean( m_LuaState, -1, 0) > 0);
+	return bRetVal;
+}
+
+
+
+
+
+void cPlugin_NewLua::OnPlayerMove( cPlayer* a_Player )
+{
+	cCSLock Lock( m_CriticalSection );
+	if( !PushFunction("OnPlayerMove") )
+		return;
+
+	tolua_pushusertype(m_LuaState, a_Player, "cPlayer");
+
+	CallFunction(1, 0, "OnPlayerMove");
+}
+
+
+
+
+
+void cPlugin_NewLua::OnTakeDamage( cPawn* a_Pawn, TakeDamageInfo* a_TakeDamageInfo )
+{
+	cCSLock Lock( m_CriticalSection );
+	if( !PushFunction("OnTakeDamage") )
+		return;
+
+	tolua_pushusertype(m_LuaState, a_Pawn, "cPawn");
+	tolua_pushusertype(m_LuaState, a_TakeDamageInfo, "TakeDamageInfo");
+
+	CallFunction(2, 0, "OnTakeDamage");
+}
+
+
+
+
+
+bool cPlugin_NewLua::OnKilled( cPawn* a_Killed, cEntity* a_Killer )
+{
+	cCSLock Lock( m_CriticalSection );
+	if( !PushFunction("OnKilled") )
+		return false;
+
+	tolua_pushusertype(m_LuaState, a_Killed, "cPawn");
+	tolua_pushusertype(m_LuaState, a_Killer, "cEntity");
+
+	if( !CallFunction(2, 1, "OnKilled") )
+		return false;
+
+	bool bRetVal = (tolua_toboolean( m_LuaState, -1, 0) > 0);
+	return bRetVal;
+}
+
+
+
+
+
+void cPlugin_NewLua::OnChunkGenerated(cWorld * a_World, int a_ChunkX, int a_ChunkZ)
+{
+	cCSLock Lock(m_CriticalSection);
+	if (!PushFunction("OnChunkGenerated"))
+	{
+		return;
+	}
+	
+	tolua_pushusertype(m_LuaState, a_World, "cWorld");
+	tolua_pushnumber  (m_LuaState, a_ChunkX);
+	tolua_pushnumber  (m_LuaState, a_ChunkZ);
+	
+	CallFunction(3, 0, "OnChunkGenerated");
+}
+
+
+
+
+
+bool cPlugin_NewLua::OnChunkGenerating(cWorld * a_World, int a_ChunkX, int a_ChunkZ, cLuaChunk * a_pLuaChunk)
+{
+	cCSLock Lock(m_CriticalSection);
+	if (!PushFunction("OnChunkGenerating"))
+		return false;
+
+	tolua_pushusertype(m_LuaState, a_World,     "cWorld");
+	tolua_pushnumber  (m_LuaState, a_ChunkX);
+	tolua_pushnumber  (m_LuaState, a_ChunkZ);
+	tolua_pushusertype(m_LuaState, a_pLuaChunk, "cLuaChunk");
+
+	if( !CallFunction(3, 1, "OnChunkGenerating") )
+		return false;
+
+	bool bRetVal = (tolua_toboolean( m_LuaState, -1, 0) > 0);
+	return bRetVal;
+}
+
+
+
+
+
+bool cPlugin_NewLua::OnPreCrafting(const cPlayer * a_Player, const cCraftingGrid * a_Grid, cCraftingRecipe * a_Recipe)
+{
+	cCSLock Lock(m_CriticalSection);
+	if (!PushFunction("OnPreCrafting"))
+		return false;
+
+	tolua_pushusertype(m_LuaState, (void *)a_Player, "cPlayer");
+	tolua_pushusertype(m_LuaState, (void *)a_Grid,   "cCraftingGrid");
+	tolua_pushusertype(m_LuaState, (void *)a_Recipe, "cCraftingRecipe");
+
+	if (!CallFunction(3, 1, "OnPreCrafting"))
+	{
+		return false;
+	}
+
+	bool bRetVal = (tolua_toboolean( m_LuaState, -1, 0) > 0);
+	return bRetVal;
+}
+
+
+
+
+
+bool cPlugin_NewLua::OnCraftingNoRecipe(const cPlayer * a_Player, const cCraftingGrid * a_Grid, cCraftingRecipe * a_Recipe)
+{
+	cCSLock Lock(m_CriticalSection);
+	if (!PushFunction("OnCraftingNoRecipe"))
+		return false;
+
+	tolua_pushusertype(m_LuaState, (void *)a_Player, "cPlayer");
+	tolua_pushusertype(m_LuaState, (void *)a_Grid,   "cCraftingGrid");
+	tolua_pushusertype(m_LuaState, (void *)a_Recipe, "cCraftingRecipe");
+
+	if (!CallFunction(3, 1, "OnCraftingNoRecipe"))
+	{
+		return false;
+	}
+
+	bool bRetVal = (tolua_toboolean( m_LuaState, -1, 0) > 0);
+	return bRetVal;
+}
+
+
+
+
+
+bool cPlugin_NewLua::OnPostCrafting(const cPlayer * a_Player, const cCraftingGrid * a_Grid, cCraftingRecipe * a_Recipe)
+{
+	cCSLock Lock(m_CriticalSection);
+	if (!PushFunction("OnPostCrafting"))
+		return false;
+
+	tolua_pushusertype(m_LuaState, (void *)a_Player, "cPlayer");
+	tolua_pushusertype(m_LuaState, (void *)a_Grid,   "cCraftingGrid");
+	tolua_pushusertype(m_LuaState, (void *)a_Recipe, "cCraftingRecipe");
+
+	if (!CallFunction(3, 1, "OnPostCrafting"))
+	{
+		return false;
+	}
+
+	bool bRetVal = (tolua_toboolean( m_LuaState, -1, 0) > 0);
+	return bRetVal;
+}
+
+
+
+
+
+bool cPlugin_NewLua::OnBlockToPickup(
+	BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta, 
+	const cPlayer * a_Player, const cItem & a_EquippedItem, cItems & a_Pickups
+)
+{
+	cLuaItems Pickups(a_Pickups);
+	cCSLock Lock(m_CriticalSection);
+	if (!PushFunction("OnBlockToPickup"))
+		return false;
+
+	tolua_pushnumber  (m_LuaState, a_BlockType);
+	tolua_pushnumber  (m_LuaState, a_BlockMeta);
+	tolua_pushusertype(m_LuaState, (void *)a_Player,        "cPlayer");
+	tolua_pushusertype(m_LuaState, (void *)&a_EquippedItem, "cItem");
+	tolua_pushusertype(m_LuaState, (void *)&Pickups,        "cLuaItems");
+
+	if (!CallFunction(5, 1, "OnBlockToPickup"))
+	{
+		return false;
+	}
+
+	bool bRetVal = (tolua_toboolean( m_LuaState, -1, 0) > 0);
+	return bRetVal;
+}
+
+
+
+
+
+bool cPlugin_NewLua::OnWeatherChanged(cWorld * a_World)
+{
+	cCSLock Lock(m_CriticalSection);
+	if (!PushFunction("OnWeatherChanged"))
+	{
+		return false;
+	}
+
+	tolua_pushusertype(m_LuaState, (void *)a_World, "cWorld");
+
+	if (!CallFunction(1, 1, "OnWeatherChanged"))
+	{
+		return false;
+	}
+
+	bool bRetVal = (tolua_toboolean( m_LuaState, -1, 0) > 0);
+	return bRetVal;
+}
+
+
+
+
+
+bool cPlugin_NewLua::OnUpdatingSign(
+	cWorld * a_World, 
+	int a_BlockX, int a_BlockY, int a_BlockZ, 
+	AString & a_Line1, AString & a_Line2, AString & a_Line3, AString & a_Line4,
+	cPlayer * a_Player
+)
+{
+	cCSLock Lock(m_CriticalSection);
+	if (!PushFunction("OnUpdatingSign"))
+	{
+		return false;
+	}
+
+	tolua_pushusertype(m_LuaState, (void *)a_World, "cWorld");
+	tolua_pushnumber  (m_LuaState, a_BlockX);
+	tolua_pushnumber  (m_LuaState, a_BlockY);
+	tolua_pushnumber  (m_LuaState, a_BlockZ);
+	tolua_pushstring  (m_LuaState, a_Line1.c_str());
+	tolua_pushstring  (m_LuaState, a_Line2.c_str());
+	tolua_pushstring  (m_LuaState, a_Line3.c_str());
+	tolua_pushstring  (m_LuaState, a_Line4.c_str());
+	tolua_pushusertype(m_LuaState, (void *)a_Player, "cPlayer");
+
+	if (!CallFunction(9, 5, "OnUpdatingSign"))
+	{
+		return false;
+	}
+
+	bool bRetVal = (tolua_toboolean( m_LuaState, -5, 0) > 0);
+	if (lua_isstring(m_LuaState, -4))
+	{
+		a_Line1 = tolua_tostring(m_LuaState, -4, "");
+	}
+	if (lua_isstring(m_LuaState, -3))
+	{
+		a_Line2 = tolua_tostring(m_LuaState, -3, "");
+	}
+	if (lua_isstring(m_LuaState, -2))
+	{
+		a_Line3 = tolua_tostring(m_LuaState, -2, "");
+	}
+	if (lua_isstring(m_LuaState, -1))
+	{
+		a_Line4 = tolua_tostring(m_LuaState, -1, "");
+	}
+	return bRetVal;
+}
+
+
+
+
+
+bool cPlugin_NewLua::OnUpdatedSign(
+	cWorld * a_World, 
+	int a_BlockX, int a_BlockY, int a_BlockZ, 
+	const AString & a_Line1, const AString & a_Line2, const AString & a_Line3, const AString & a_Line4,
+	cPlayer * a_Player
+)
+{
+	cCSLock Lock(m_CriticalSection);
+	if (!PushFunction("OnUpdatedSign"))
+	{
+		return false;
+	}
+
+	tolua_pushusertype(m_LuaState, (void *)a_World, "cWorld");
+	tolua_pushnumber  (m_LuaState, a_BlockX);
+	tolua_pushnumber  (m_LuaState, a_BlockY);
+	tolua_pushnumber  (m_LuaState, a_BlockZ);
+	tolua_pushstring  (m_LuaState, a_Line1.c_str());
+	tolua_pushstring  (m_LuaState, a_Line2.c_str());
+	tolua_pushstring  (m_LuaState, a_Line3.c_str());
+	tolua_pushstring  (m_LuaState, a_Line4.c_str());
+	tolua_pushusertype(m_LuaState, (void *)a_Player, "cPlayer");
+
+	if (!CallFunction(9, 1, "OnUpdatedSign"))
+	{
+		return false;
+	}
+
+	bool bRetVal = (tolua_toboolean( m_LuaState, -1, 0) > 0);
+	return bRetVal;
+}
+
+
+
+
+
+bool cPlugin_NewLua::OnHandshake(cClientHandle * a_Client, const AString & a_Username)
+{
+	cCSLock Lock(m_CriticalSection);
+	if (!PushFunction("OnHandshake"))
+	{
+		return false;
+	}
+
+	tolua_pushusertype(m_LuaState, a_Client, "cClientHandle");
+	tolua_pushstring  (m_LuaState, a_Username.c_str());
+
+	if (!CallFunction(2, 1, "OnHandshake"))
+	{
+		return false;
+	}
+
+	bool bRetVal = (tolua_toboolean( m_LuaState, -1, 0) > 0);
+	return bRetVal;
+}
+
+
+
+
+
+cPlugin_NewLua * cPlugin_NewLua::CreateWebPlugin(lua_State * a_LuaState)
+{
+	LOGWARN("WARNING: Using deprecated function CreateWebPlugin()! A Lua plugin is a WebPlugin by itself now. (plugin \"%s\" in folder \"%s\")",
+		cPlugin::GetName().c_str(), m_Directory.c_str()
+	);
+	return this;
+}
+
+
+
+
+
+AString cPlugin_NewLua::HandleWebRequest( HTTPRequest * a_Request )
+{
+	cCSLock Lock( m_CriticalSection );
+	std::string RetVal = "";
+
+	std::pair< std::string, std::string > TabName = GetTabNameForRequest(a_Request);
+	std::string SafeTabName = TabName.second;
+	if( SafeTabName.empty() )
+		return "";
+
+	sWebPluginTab* Tab = 0;
+	for( TabList::iterator itr = GetTabs().begin(); itr != GetTabs().end(); ++itr )
+	{
+		if( (*itr)->SafeTitle.compare( SafeTabName ) == 0 ) // This is the one! Rawr
+		{
+			Tab = *itr;
+			break;
+		}
+	}
+
+	if( Tab )
+	{
+		//LOGINFO("1. Stack size: %i", lua_gettop(m_LuaState) );
+		lua_rawgeti( m_LuaState, LUA_REGISTRYINDEX, Tab->UserData); // same as lua_getref()
+
+		//LOGINFO("2. Stack size: %i", lua_gettop(m_LuaState) );
+		// Push HTTPRequest
+		tolua_pushusertype( m_LuaState, a_Request, "HTTPRequest" );
+		//LOGINFO("Calling bound function! :D");
+		int s = lua_pcall( m_LuaState, 1, 1, 0);
+
+		if ( s != 0 )
+		{
+			std::string err = lua_tostring(m_LuaState, -1);
+			LOGERROR("-- %s", err.c_str() );
+			lua_pop(m_LuaState, 1);
+			LOGINFO("error. Stack size: %i", lua_gettop(m_LuaState) );
+			return err;	// Show the error message in the web page, looks cool
+		}
+
+		if( !lua_isstring( m_LuaState, -1 ) )
+		{
+			LOGWARN("WARNING: WebPlugin tab '%s' did not return a string!", Tab->Title.c_str() );
+			lua_pop(m_LuaState, 1); // Pop return value
+			return std::string("WARNING: WebPlugin tab '") + Tab->Title + std::string("' did not return a string!");
+		}
+
+		RetVal += tolua_tostring(m_LuaState, -1, 0);
+		lua_pop(m_LuaState, 1); // Pop return value
+		//LOGINFO("ok. Stack size: %i", lua_gettop(m_LuaState) );
+	}
+
+	return RetVal;
+}
+
+
+
+
+
+bool cPlugin_NewLua::AddWebTab( const AString & a_Title, lua_State * a_LuaState, int a_FunctionReference )
+{
+	cCSLock Lock( m_CriticalSection );
+	if( a_LuaState != m_LuaState )
+	{
+		LOGERROR("Only allowed to add a tab to a WebPlugin of your own Plugin!");
+		return false;
+	}
+	sWebPluginTab* Tab = new sWebPluginTab();
+	Tab->Title = a_Title;
+	Tab->SafeTitle = SafeString( a_Title );
+
+	Tab->UserData = a_FunctionReference;
+
+	GetTabs().push_back( Tab );
+	return true;
+}
+
+
+
+
+
+// Helper functions
+bool cPlugin_NewLua::PushFunction( const char* a_FunctionName, bool a_bLogError /* = true */ )
+{
+	lua_getglobal(m_LuaState, a_FunctionName);
+	if(!lua_isfunction(m_LuaState,-1))
+	{
+		if( a_bLogError )
+		{
+			LOGWARN("Error in plugin %s: Could not find function %s()", m_Directory.c_str(), a_FunctionName );
+		}
+		lua_pop(m_LuaState,1);
+		return false;
+	}
+	return true;
+}
+
+bool cPlugin_NewLua::CallFunction( int a_NumArgs, int a_NumResults, const char* a_FunctionName )
+{
+	int s = lua_pcall(m_LuaState, a_NumArgs, a_NumResults, 0);
+	if( report_errors( m_LuaState, s ) )
+	{
+		LOGWARN("Error in plugin %s calling function %s()", m_Directory.c_str(), a_FunctionName );
+		return false;
+	}
+	return true;
+}
\ No newline at end of file