| 1 | /* |
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| 2 | orxonox - the future of 3D-vertical-scrollers |
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| 3 | |
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| 4 | Copyright (C) 2004 orx |
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| 5 | |
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| 6 | This program is free software; you can redistribute it and/or modify |
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| 7 | it under the terms of the GNU General Public License as published by |
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| 8 | the Free Software Foundation; either version 2, or (at your option) |
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| 9 | any later version. |
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| 10 | |
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| 11 | ### File Specific: |
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| 12 | main-programmer: Benjamin Knecht |
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| 13 | co-programmer: ... |
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| 14 | */ |
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| 15 | |
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| 16 | /* include Data_stream Header */ |
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| 17 | #include "data_stream.h" |
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| 18 | |
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| 19 | |
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| 20 | /* using namespace std is default, this needs to be here */ |
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| 21 | using namespace std; |
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| 22 | |
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| 23 | |
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| 24 | |
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| 25 | /** |
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| 26 | * This is the empty constructor |
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| 27 | */ |
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| 28 | DataStream::DataStream() |
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| 29 | { |
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| 30 | this->setClassID(CL_DATA_STREAM, "DataStream"); |
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| 31 | this->upBuffer = new byte[DATA_STREAM_BUFFER_SIZE]; |
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| 32 | this->downBuffer = new byte[DATA_STREAM_BUFFER_SIZE]; |
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| 33 | } |
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| 34 | |
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| 35 | /** |
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| 36 | * This constructor creates a new DataStream and connects it to both streams (upStream, downStream) |
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| 37 | */ |
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| 38 | DataStream::DataStream(DataStream& inStream, DataStream& outStream) |
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| 39 | { |
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| 40 | this->setClassID(CL_DATA_STREAM, "DataStream"); |
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| 41 | this->downStream = &outStream; |
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| 42 | this->upStream = &inStream; |
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| 43 | |
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| 44 | if( this->upBuffer) |
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| 45 | delete[] this->upBuffer; |
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| 46 | if( this->downBuffer) |
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| 47 | delete[] this->downBuffer; |
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| 48 | } |
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| 49 | |
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| 50 | /** |
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| 51 | * standart deconstructor |
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| 52 | */ |
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| 53 | DataStream::~DataStream() |
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| 54 | { |
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| 55 | |
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| 56 | } |
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| 57 | |
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| 58 | |
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| 59 | /** |
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| 60 | * This function connects this stream to another stream. The connected DataStream is an up-stream, meaning |
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| 61 | * that the stream is "further away" from the NetworkSocket. The local reference upStream will be set to this |
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| 62 | * Stream |
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| 63 | */ |
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| 64 | void DataStream::connectUpStream(DataStream& upStream) |
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| 65 | { |
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| 66 | |
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| 67 | } |
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| 68 | |
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| 69 | /** |
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| 70 | * This function connects this stream to another stream. The connected DataStream is an down-stream, meaning |
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| 71 | * that the stream is "closer" to the NetworkSocket. |
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| 72 | */ |
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| 73 | void DataStream::connectDownStream(DataStream& upStream) |
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| 74 | { |
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| 75 | |
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| 76 | } |
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| 77 | |
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| 78 | /** |
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| 79 | * This function disconnects the upStream and sets it to NULL |
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| 80 | */ |
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| 81 | void DataStream::disconnectUpStream() |
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| 82 | { |
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| 83 | |
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| 84 | } |
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| 85 | |
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| 86 | /** |
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| 87 | * This function disconnects the downStream and sets it to NULL |
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| 88 | */ |
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| 89 | void DataStream::disconnectDownStream() |
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| 90 | { |
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| 91 | |
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| 92 | } |
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| 93 | |
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| 94 | |
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| 95 | /** |
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| 96 | * Following functions are protected and only visible inside the object and from derived classes |
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| 97 | */ |
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| 98 | |
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| 99 | /** |
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| 100 | * This function writes the binary data to the local data. You will have to copy each byte and not only dublicate |
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| 101 | * it. |
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| 102 | * |
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| 103 | * @param data: the binary array |
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| 104 | * @param length: the length of the array |
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| 105 | */ |
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| 106 | void passDown(byte* data, int length) |
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| 107 | { |
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| 108 | |
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| 109 | } |
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| 110 | |
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| 111 | |
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| 112 | /** |
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| 113 | * This function returns a reference to the local upData data array. So it can be read by an upper Stream |
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| 114 | * The reading function will have to copy the whole data and musn't just reference it! |
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| 115 | * This function is only called from other connected DataStreams to read the data. |
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| 116 | * |
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| 117 | * @param data: the binary array |
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| 118 | * @return: the length of the data |
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| 119 | */ |
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| 120 | int passUp(byte* data) |
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| 121 | { |
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| 122 | |
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| 123 | } |
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