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431 lines
11 KiB
C++
431 lines
11 KiB
C++
// NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
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// Copyright (C) 2010 Winch Gate Property Limited
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as
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// published by the Free Software Foundation, either version 3 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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#include "nel/logic/logic_state.h"
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#include "nel/logic/logic_state_machine.h"
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using namespace std;
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using namespace NLMISC;
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using namespace NLNET;
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namespace NLLOGIC
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{
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//---------------------------------------------------
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// CLogicState
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//
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//---------------------------------------------------
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CLogicState::CLogicState()
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{
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_StateName = "no_state";
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_LogicStateMachine = 0;
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} // CLogicState //
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//---------------------------------------------------
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// setLogicStateMachine
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//
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//---------------------------------------------------
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void CLogicState::setLogicStateMachine( CLogicStateMachine * logicStateMachine )
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{
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if( logicStateMachine == 0 )
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{
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nlwarning("(LOGIC)<CLogicCondition::setLogicStateMachine> The state machine is null");
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}
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else
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{
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// init the logic state machine for this state
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_LogicStateMachine = logicStateMachine;
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// init the logic state machine in each event
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vector<CLogicEvent>::iterator itEvent;
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for( itEvent = _Events.begin(); itEvent != _Events.end(); ++itEvent )
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{
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(*itEvent).setLogicStateMachine( logicStateMachine );
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}
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}
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} // setLogicStateMachine //
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//---------------------------------------------------
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// addEvent :
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//
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//---------------------------------------------------
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void CLogicState::addEvent( CLogicEvent event )
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{
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event.setLogicStateMachine( _LogicStateMachine );
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_Events.push_back( event );
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} // addEvent //
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//---------------------------------------------------
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// addSIdMap :
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//
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// looks in all the messages of the state if the
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// destination names can be associated with a sid.
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//---------------------------------------------------
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void CLogicState::addSIdMap( const TSIdMap& sIdMap )
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{
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vector<CLogicEventMessage>::iterator itMsg;
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/// entry messages
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for( itMsg = _EntryMessages.begin(); itMsg != _EntryMessages.end(); ++itMsg )
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{
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TSIdMap::const_iterator itId = sIdMap.find( (*itMsg).Destination );
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// if message destination exists in the map we associate the sid with the message
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if( itId != sIdMap.end() )
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{
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(*itMsg).DestinationId = (*itId).second;
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}
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}
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/// send the entry messages that can be sent
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trySendEntryMessages();
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// event messages
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vector<CLogicEvent>::iterator itEvt;
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for( itEvt = _Events.begin(); itEvt != _Events.end(); ++itEvt )
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{
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string dest = (*itEvt).EventAction.EventMessage.Destination;
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TSIdMap::const_iterator itId = sIdMap.find( dest );
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// if message destination exists in the map we associate the sid with the message
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if( itId != sIdMap.end() )
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{
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(*itEvt).EventAction.EventMessage.DestinationId = (*itId).second;
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}
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}
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/// send the event messages that can be sent
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trySendEventMessages();
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/// exit messages
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for( itMsg = _ExitMessages.begin(); itMsg != _ExitMessages.end(); ++itMsg )
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{
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TSIdMap::const_iterator itId = sIdMap.find( (*itMsg).Destination );
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// if message destination exists in the map we associate the sid with the message
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if( itId != sIdMap.end() )
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{
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(*itMsg).DestinationId = (*itId).second;
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}
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}
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} // addSIdMap //
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//---------------------------------------------------
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// processLogic :
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//
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//---------------------------------------------------
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void CLogicState::processLogic()
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{
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// test all conditions managed by this state
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vector<CLogicEvent>::iterator itEvent;
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for( itEvent = _Events.begin(); itEvent != _Events.end(); ++itEvent )
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{
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if( (*itEvent).testCondition() )
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{
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//nlinfo("The condition %s is valid",(*itEvent).ConditionName.c_str());
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if( (*itEvent).EventAction.IsStateChange )
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{
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_LogicStateMachine->setCurrentState( (*itEvent).EventAction.StateChange );
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}
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else
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{
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// this message will be sent as soon as the dest id will be given
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(*itEvent).EventAction.enableSendMessage();
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/// send the event messages that must and can be sent
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trySendEventMessages();
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}
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}
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else
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{
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// reset message send status here to be able to send messages several times in the logic state
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// --> this has to be done if we want messages to be sent every time the condition becomes verified
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}
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}
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} // processLogic //
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//---------------------------------------------------
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// enterState :
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//
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//---------------------------------------------------
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void CLogicState::enterState()
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{
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/// send the entry messages that can be sent
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trySendEntryMessages();
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} // enterState //
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//---------------------------------------------------
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// exitState :
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//
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//---------------------------------------------------
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void CLogicState::exitState()
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{
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vector<CLogicEventMessage>::iterator itMsg;
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for( itMsg = _ExitMessages.begin(); itMsg != _ExitMessages.end(); ++itMsg )
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{
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if( (*itMsg).DestinationId != CEntityId() )
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{
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CMessage msgOut( (*itMsg).MessageId );
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msgOut.serial( (*itMsg).Arguments );
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_MessagesToSend.insert( make_pair((*itMsg).DestinationId,msgOut) );
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}
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}
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// reset the entry messages send status
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for( itMsg = _EntryMessages.begin(); itMsg != _EntryMessages.end(); ++itMsg )
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{
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(*itMsg).ToSend = false;
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(*itMsg).Sent = false;
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}
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// reset all events
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vector<CLogicEvent>::iterator itEvent;
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for( itEvent = _Events.begin(); itEvent != _Events.end(); ++itEvent )
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{
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(*itEvent).reset();
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}
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// reset the exit messages send status
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for( itMsg = _ExitMessages.begin(); itMsg != _ExitMessages.end(); ++itMsg )
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{
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(*itMsg).ToSend = false;
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(*itMsg).Sent = false;
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}
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} // exitState //
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//---------------------------------------------------
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// trySendEntryMessages :
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//
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//---------------------------------------------------
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void CLogicState::trySendEntryMessages()
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{
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/// send the entry messages that can be sent
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vector<CLogicEventMessage>::iterator itMsg;
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for( itMsg = _EntryMessages.begin(); itMsg != _EntryMessages.end(); ++itMsg )
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{
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if( !(*itMsg).Sent && (*itMsg).DestinationId.getType() != 0xfe )
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{
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CMessage msgOut( (*itMsg).MessageId );
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msgOut.serial( (*itMsg).Arguments );
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_MessagesToSend.insert( make_pair((*itMsg).DestinationId,msgOut) );
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(*itMsg).ToSend = false;
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(*itMsg).Sent = true;
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}
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}
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} // trySendEntryMessages //
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//---------------------------------------------------
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// trySendEventMessages :
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//
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//---------------------------------------------------
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void CLogicState::trySendEventMessages()
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{
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// test all conditions managed by this state
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vector<CLogicEvent>::iterator itEvent;
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for( itEvent = _Events.begin(); itEvent != _Events.end(); ++itEvent )
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{
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if( (*itEvent).EventAction.EventMessage.ToSend == true )
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{
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if( (*itEvent).EventAction.EventMessage.Sent == false )
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{
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if( (*itEvent).EventAction.EventMessage.DestinationId.getType() != 0xfe )
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{
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CMessage msgOut( (*itEvent).EventAction.EventMessage.MessageId );
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msgOut.serial( (*itEvent).EventAction.EventMessage.Arguments );
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_MessagesToSend.insert( make_pair((*itEvent).EventAction.EventMessage.DestinationId,msgOut) );
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(*itEvent).EventAction.EventMessage.ToSend = false;
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(*itEvent).EventAction.EventMessage.Sent = true;
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}
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}
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}
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}
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} // trySendEventMessages //
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//---------------------------------------------------
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// getMessagesToSend :
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//
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//---------------------------------------------------
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void CLogicState::getMessagesToSend( multimap<CEntityId,CMessage>& msgs )
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{
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multimap<CEntityId,CMessage>::iterator itMsg;
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for( itMsg = _MessagesToSend.begin(); itMsg != _MessagesToSend.end(); ++itMsg )
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{
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msgs.insert( *itMsg );
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}
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// erase all the messages
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_MessagesToSend.clear();
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} // getMessagesToSend //
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//---------------------------------------------------
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// fillVarMap :
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//
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//---------------------------------------------------
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void CLogicState::fillVarMap( multimap<CEntityId,string >& stateMachineVariables )
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{
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// events
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vector<CLogicEvent>::iterator itEvt;
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for( itEvt = _Events.begin(); itEvt != _Events.end(); ++itEvt )
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{
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// get the condition used in the event
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CLogicCondition condition;
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if( _LogicStateMachine->getCondition((*itEvt).ConditionName,condition) )
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{
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// get vars used in the conditions
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set<string> condVars;
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condition.fillVarSet( condVars );
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// add var with related service
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set<string>::iterator itCV;
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for( itCV = condVars.begin(); itCV != condVars.end(); ++itCV )
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{
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stateMachineVariables.insert( make_pair((*itEvt).EventAction.EventMessage.DestinationId,*itCV) );
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}
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}
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}
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} // fillVarMap //
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//---------------------------------------------------
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// serial :
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//
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//---------------------------------------------------
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/*void CLogicState::serial( IStream &f )
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{
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f.xmlPush( "STATE");
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f.serial( _StateName );
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f.serialCont( _EntryMessages );
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f.serialCont( _ExitMessages );
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f.serialCont( _Events );
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f.xmlPop();
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} // serial //*/
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void CLogicState::write (xmlNodePtr node) const
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{
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xmlNodePtr elmPtr = xmlNewChild ( node, NULL, (const xmlChar*)"STATE", NULL);
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xmlSetProp (elmPtr, (const xmlChar*)"Name", (const xmlChar*)_StateName.c_str());
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uint i;
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for (i = 0; i < _EntryMessages.size(); i++)
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{
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_EntryMessages[i].write(elmPtr, "ENTRY_");
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}
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for (i = 0; i < _ExitMessages.size(); i++)
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{
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_ExitMessages[i].write(elmPtr, "EXIT_");
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}
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for (i = 0; i < _Events.size(); i++)
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{
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_Events[i].write(elmPtr);
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}
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}
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void CLogicState::read (xmlNodePtr node)
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{
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xmlCheckNodeName (node, "STATE");
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_StateName = getXMLProp (node, "Name");
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{
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// Count the parent
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uint nb = CIXml::countChildren (node, "ENTRY_EVENT_MESSAGE");
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uint i = 0;
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xmlNodePtr parent = CIXml::getFirstChildNode (node, "ENTRY_EVENT_MESSAGE");
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while (i<nb)
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{
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CLogicEventMessage v;
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v.read(parent);
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_EntryMessages.push_back(v);
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// Next parent
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parent = CIXml::getNextChildNode (parent, "ENTRY_EVENT_MESSAGE");
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i++;
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}
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}
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{
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// Count the parent
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uint nb = CIXml::countChildren (node, "EXIT_EVENT_MESSAGE");
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uint i = 0;
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xmlNodePtr parent = CIXml::getFirstChildNode (node, "EXIT_EVENT_MESSAGE");
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while (i<nb)
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{
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CLogicEventMessage v;
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v.read(parent);
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_ExitMessages.push_back(v);
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// Next parent
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parent = CIXml::getNextChildNode (parent, "EXIT_EVENT_MESSAGE");
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i++;
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}
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}
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{
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// Count the parent
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uint nb = CIXml::countChildren (node, "EVENT");
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uint i = 0;
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xmlNodePtr parent = CIXml::getFirstChildNode (node, "EVENT");
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while (i<nb)
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{
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CLogicEvent v;
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v.read(parent);
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_Events.push_back(v);
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// Next parent
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parent = CIXml::getNextChildNode (parent, "EVENT");
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i++;
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}
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}
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}
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} // NLLOGIC
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