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/*
Copyright (c) 2013, The Mineserver Project
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* Neither the name of the The Mineserver Project nor the
names of its contributors may be used to endorse or promote products
derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

#ifndef _METAINFO_H
#define _METAINFO_H

#include <vector>
#include "packets.h"
#include "tr1.h"
#ifdef __APPLE__
#include <tr1/memory>
#else
#include TR1INCLUDE(memory)
#endif

class MetaDataElem
{
  public:
    virtual void output(Packet& p) const=0;
    int8_t idx;
};

class MetaDataElemByte : public MetaDataElem
{
  public:
    MetaDataElemByte(int8_t _idx, int8_t _val);
    void output(Packet& p) const;
    int8_t val;
};

typedef std::tr1::shared_ptr<MetaDataElem> MetaDataElemPtr;

/* The MetaInfo class for storing and sending metainfo packages */
class MetaData
{
  friend Packet& operator<<(Packet& p, const MetaData& m);
  public:
    void set(MetaDataElem* p);
    MetaDataElemPtr get(int8_t idx);
  private:
    std::vector<MetaDataElemPtr> m_elem;
};

#endif
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