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130 lines
4.3 KiB
C++
130 lines
4.3 KiB
C++
// Ryzom - MMORPG Framework <http://dev.ryzom.com/projects/ryzom/>
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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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#ifndef NL_PROPERTY_DECODER_H
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#define NL_PROPERTY_DECODER_H
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#include <vector>
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#include <deque>
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#include "nel/misc/types_nl.h"
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#include "nel/misc/vector.h"
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#include "nel/misc/vectord.h"
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#include "game_share/entity_types.h"
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#include "game_share/action.h"
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/**
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* An engine that allows to encode/decode continuous properties using delta values.
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* \author Benjamin Legros
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* \author Nevrax France
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* \date 2001
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*/
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class CPropertyDecoder
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{
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private:
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/*
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/// A property entry, containing Garanted, ToGaranty and LastReceived values of action
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class CPropertyEntry
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{
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public:
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CLFECOMMON::CAction::TValue LastReceived;
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CLFECOMMON::TPacketNumber Packet;
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void init() { Packet = 0xFFFFFFFF; LastReceived = 0; }
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};
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*/
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/// An entity entry, containing properties for this entity
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class CEntityEntry
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{
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public:
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CEntityEntry() : AssociationBits(0), EntryUsed(false), PosIsRelative(false), PosIsInterior(false) {}
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CLFECOMMON::TSheetId Sheet;
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uint16 AssociationBits;
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bool EntryUsed;
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bool PosIsRelative;
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bool PosIsInterior;
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// CPropertyEntry Properties[CLFECOMMON::LAST_CONTINUOUS_PROPERTY+1];
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};
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/// The entity entries
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std::vector<CEntityEntry> _Entities;
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//
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uint16 _RefBitsX,
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_RefBitsY,
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_RefBitsZ;
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//
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sint32 _RefPosX,
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_RefPosY;
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// _RefPosZ;
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public:
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/// Constructor
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CPropertyDecoder();
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//
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void init(uint maximum) { setMaximumEntities(maximum); clear (); }
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void setMaximumEntities(uint maximum);
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void clear();
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void addEntity(CLFECOMMON::TCLEntityId entity, CLFECOMMON::TSheetId sheet);
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bool removeEntity(CLFECOMMON::TCLEntityId entity);
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uint16& associationBits( CLFECOMMON::TCLEntityId entity ) { return _Entities[entity].AssociationBits; }
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bool isUsed(CLFECOMMON::TCLEntityId entity) const { return _Entities[entity].EntryUsed; }
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CLFECOMMON::TSheetId sheet(CLFECOMMON::TCLEntityId entity) const { return _Entities[entity].Sheet; }
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/** Receives actions from the front end. Actually transmits actions received
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* by the client to the property decoder.
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* \param packetNumber the number of the packet received
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* \param ack the number of the acknowledged packet by the front end
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* \param actions the actions sent to the client by the front end
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*/
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void receive(CLFECOMMON::TPacketNumber packetNumber, CLFECOMMON::TPacketNumber ack, std::vector<CLFECOMMON::CAction *> &actions);
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/** Receives single action from the front end. Actually transmits action received
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* by the client to the property decoder.
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* \param packetNumber the number of the packet received
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* \param ack the number of the acknowledged packet by the front end
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* \param action the action sent to the client by the front end
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*/
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void receive(CLFECOMMON::TPacketNumber packetNumber, CLFECOMMON::CAction *action);
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/// Decode x and y
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void decodeAbsPos2D( sint32& x, sint32& y, uint16 x16, uint16 y16 )
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{
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x = _RefPosX + (((sint32)((sint16)(x16 - _RefBitsX))) << 4);
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y = _RefPosY + (((sint32)((sint16)(y16 - _RefBitsY))) << 4);
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}
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/// Set player's reference position
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void setReferencePosition(const NLMISC::CVectorD &position);
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/// Retrieves a property value.
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// const CLFECOMMON::CAction::TValue &getProperty(CLFECOMMON::TCLEntityId entity, CLFECOMMON::TProperty property) const;
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/// Retrieves an entity position.
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// void getPosition(CLFECOMMON::TCLEntityId entity, CLFECOMMON::CAction::TValue &posx, CLFECOMMON::CAction::TValue &posy, CLFECOMMON::CAction::TValue &posz) const;
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};
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#endif // NL_PROPERTY_DECODER_H
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/* End of property_decoder.h */
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