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#include "Globals.h" // NOTE: MSVC stupidness requires this to be the same across all modules
#define LUA_USE_POSIX
#include "cPlugin_NewLua.h"
#include "cMCLogger.h"
#include "cWebPlugin_Lua.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 )
{
m_Directory = a_PluginName;
}
cPlugin_NewLua::~cPlugin_NewLua()
{
for( WebPluginList::iterator itr = m_WebPlugins.begin(); itr != m_WebPlugins.end(); ++itr )
{
delete *itr;
}
m_WebPlugins.clear();
if( m_LuaState )
{
lua_close( m_LuaState );
m_LuaState = 0;
}
}
bool cPlugin_NewLua::Initialize()
{
if( !m_LuaState )
{
m_LuaState = lua_open();
luaL_openlibs( m_LuaState );
tolua_AllToLua_open(m_LuaState);
ManualBindings::Bind( m_LuaState );
}
std::string PluginPath = std::string("Plugins/") + m_Directory + "/";
// Load all files for this plugin, and execute them
DIR* dp;
struct dirent *entry;
if(dp = opendir( PluginPath.c_str() ))
{
while(entry = readdir(dp))
{
std::string FileName = entry->d_name;
if( FileName.find(".lua") != std::string::npos )
{
std::string Path = PluginPath + FileName;
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;
}
}
}
closedir( dp );
}
// 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;
}
void cPlugin_NewLua::OnDisable()
{
if( !PushFunction("OnDisable", false) ) // false = don't log error if not found
return;
CallFunction(0, 0, "OnDisable");
}
void cPlugin_NewLua::Tick(float a_Dt)
{
if( !PushFunction("Tick") )
return;
tolua_pushnumber( m_LuaState, a_Dt );
CallFunction(1, 0, "Tick");
}
bool cPlugin_NewLua::OnCollectItem( cPickup* a_Pickup, cPlayer* a_Player )
{
if( !PushFunction("OnCollectItem") )
return false;
tolua_pushusertype(m_LuaState, a_Pickup, "cPickup");
tolua_pushusertype(m_LuaState, a_Player, "cPlayer");
if( !CallFunction(2, 1, "OnCollectItem") )
return false;
bool bRetVal = (tolua_toboolean( m_LuaState, -1, 0) > 0);
return bRetVal;
}
bool cPlugin_NewLua::OnDisconnect( std::string a_Reason, cPlayer* a_Player )
{
if( !PushFunction("OnDisconnect") )
return false;
tolua_pushstring( m_LuaState, a_Reason.c_str() );
tolua_pushusertype(m_LuaState, a_Player, "cPlayer");
if( !CallFunction(2, 1, "OnDisconnect") )
return false;
bool bRetVal = (tolua_toboolean( m_LuaState, -1, 0) > 0);
return bRetVal;
}
bool cPlugin_NewLua::OnBlockPlace( cPacket_BlockPlace* a_PacketData, cPlayer* a_Player )
{
if( !PushFunction("OnBlockPlace") )
return false;
tolua_pushusertype(m_LuaState, a_PacketData, "cPacket_BlockPlace");
tolua_pushusertype(m_LuaState, a_Player, "cPlayer");
if( !CallFunction(2, 1, "OnBlockPlace") )
return false;
bool bRetVal = (tolua_toboolean( m_LuaState, -1, 0) > 0);
return bRetVal;
}
bool cPlugin_NewLua::OnBlockDig( cPacket_BlockDig* a_PacketData, cPlayer* a_Player, cItem* a_PickupItem )
{
if( !PushFunction("OnBlockDig") )
return false;
tolua_pushusertype(m_LuaState, a_PacketData, "cPacket_BlockDig");
tolua_pushusertype(m_LuaState, a_Player, "cPlayer");
tolua_pushusertype(m_LuaState, a_PickupItem, "cItem");
if( !CallFunction(3, 1, "OnBlockDig") )
return false;
bool bRetVal = (tolua_toboolean( m_LuaState, -1, 0) > 0);
return bRetVal;
}
bool cPlugin_NewLua::OnChat( const char* a_Chat, cPlayer* a_Player )
{
if( !PushFunction("OnChat") )
return false;
tolua_pushstring( m_LuaState, a_Chat );
tolua_pushusertype(m_LuaState, a_Player, "cPlayer");
if( !CallFunction(2, 1, "OnChat") )
return false;
bool bRetVal = (tolua_toboolean( m_LuaState, -1, 0) > 0);
return bRetVal;
}
bool cPlugin_NewLua::OnLogin( cPacket_Login* a_PacketData )
{
if( !PushFunction("OnLogin") )
return false;
tolua_pushusertype(m_LuaState, a_PacketData, "cPacket_Login");
if( !CallFunction(1, 1, "OnLogin") )
return false;
bool bRetVal = (tolua_toboolean( m_LuaState, -1, 0) > 0);
return bRetVal;
}
void cPlugin_NewLua::OnPlayerSpawn( cPlayer* a_Player )
{
if( !PushFunction("OnPlayerSpawn") )
return;
tolua_pushusertype(m_LuaState, a_Player, "cPlayer");
CallFunction(1, 0, "OnPlayerSpawn");
}
bool cPlugin_NewLua::OnPlayerJoin( cPlayer* a_Player )
{
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 )
{
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 )
{
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 )
{
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;
}
cWebPlugin_Lua* cPlugin_NewLua::CreateWebPlugin(lua_State* a_LuaState)
{
if( a_LuaState != m_LuaState )
{
LOGERROR("Not allowed to create a WebPlugin from another plugin but your own!");
return 0;
}
cWebPlugin_Lua* WebPlugin = new cWebPlugin_Lua( this );
m_WebPlugins.push_back( WebPlugin );
return WebPlugin;
}
// 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;
}
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