Brad Powell
The xplane_io (X-Plane I/O) program is used to establish network communications, via UDP, with the X-Plane flight simulator running on a computer. The code consists of class libraries that abstract the lower-level UDP packet encoding and decoding details, according to the UDP protocol specifications in X-Plane version 9. Any X-Plane DATA packets can be sent and received, and any X-Plane DataRefs can be set by sending DREF packets to X-Plane.
Dependencies: EthernetNetIf mbed ConfigFile
XPlaneUdp/XPlaneUdpDATA.cpp@0:a5d13af495af, 2011-12-21 (annotated)
- Committer:
- bapowell
- Date:
- Wed Dec 21 22:29:59 2011 +0000
- Revision:
- 0:a5d13af495af
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| bapowell | 0:a5d13af495af | 1 | #include "XPlaneUdpDATA.h" |
| bapowell | 0:a5d13af495af | 2 | |
| bapowell | 0:a5d13af495af | 3 | |
| bapowell | 0:a5d13af495af | 4 | XPlaneUdpDATA::XPlaneUdpDATA(int messageIndex, bool reverseByteOrder) { |
| bapowell | 0:a5d13af495af | 5 | |
| bapowell | 0:a5d13af495af | 6 | _messageIndex = messageIndex; |
| bapowell | 0:a5d13af495af | 7 | _reverseByteOrder = reverseByteOrder; |
| bapowell | 0:a5d13af495af | 8 | for (int i = 0; i < 8; i++) { |
| bapowell | 0:a5d13af495af | 9 | _data[i] = -999.0f; |
| bapowell | 0:a5d13af495af | 10 | } |
| bapowell | 0:a5d13af495af | 11 | |
| bapowell | 0:a5d13af495af | 12 | _dataChanged = false; |
| bapowell | 0:a5d13af495af | 13 | } |
| bapowell | 0:a5d13af495af | 14 | |
| bapowell | 0:a5d13af495af | 15 | int XPlaneUdpDATA::messageIndex() const { |
| bapowell | 0:a5d13af495af | 16 | return _messageIndex; |
| bapowell | 0:a5d13af495af | 17 | } |
| bapowell | 0:a5d13af495af | 18 | |
| bapowell | 0:a5d13af495af | 19 | float XPlaneUdpDATA::getData(int i) const { |
| bapowell | 0:a5d13af495af | 20 | return _data[i]; |
| bapowell | 0:a5d13af495af | 21 | } |
| bapowell | 0:a5d13af495af | 22 | |
| bapowell | 0:a5d13af495af | 23 | void XPlaneUdpDATA::setData(int i, float f) { |
| bapowell | 0:a5d13af495af | 24 | _data[i] = f; |
| bapowell | 0:a5d13af495af | 25 | setDataChanged(); |
| bapowell | 0:a5d13af495af | 26 | } |
| bapowell | 0:a5d13af495af | 27 | |
| bapowell | 0:a5d13af495af | 28 | float& XPlaneUdpDATA::operator [] (int i) { |
| bapowell | 0:a5d13af495af | 29 | return _data[i]; |
| bapowell | 0:a5d13af495af | 30 | } |
| bapowell | 0:a5d13af495af | 31 | |
| bapowell | 0:a5d13af495af | 32 | void XPlaneUdpDATA::setAllData(char * DATAMessage) { |
| bapowell | 0:a5d13af495af | 33 | memcpy(_data, DATAMessage + 4, 32); |
| bapowell | 0:a5d13af495af | 34 | if (_reverseByteOrder) { |
| bapowell | 0:a5d13af495af | 35 | for (int d = 0; d < 8; d++) { |
| bapowell | 0:a5d13af495af | 36 | reverse4Bytes((char*) &(_data[d])); |
| bapowell | 0:a5d13af495af | 37 | } |
| bapowell | 0:a5d13af495af | 38 | } |
| bapowell | 0:a5d13af495af | 39 | } |
| bapowell | 0:a5d13af495af | 40 | |
| bapowell | 0:a5d13af495af | 41 | void XPlaneUdpDATA::populateDATAMessage(char * bytes) { |
| bapowell | 0:a5d13af495af | 42 | memcpy(bytes, &_messageIndex, 4); |
| bapowell | 0:a5d13af495af | 43 | if (_reverseByteOrder) { |
| bapowell | 0:a5d13af495af | 44 | reverse4Bytes((char*) bytes); |
| bapowell | 0:a5d13af495af | 45 | } |
| bapowell | 0:a5d13af495af | 46 | memcpy(bytes + 4, _data, 32); |
| bapowell | 0:a5d13af495af | 47 | if (_reverseByteOrder) { |
| bapowell | 0:a5d13af495af | 48 | for (int d = 1; d < 9; d++) { |
| bapowell | 0:a5d13af495af | 49 | reverse4Bytes((char*) bytes + (d * 4)); |
| bapowell | 0:a5d13af495af | 50 | } |
| bapowell | 0:a5d13af495af | 51 | } |
| bapowell | 0:a5d13af495af | 52 | } |
| bapowell | 0:a5d13af495af | 53 | |
| bapowell | 0:a5d13af495af | 54 | bool XPlaneUdpDATA::isDataChanged() const { |
| bapowell | 0:a5d13af495af | 55 | return _dataChanged; |
| bapowell | 0:a5d13af495af | 56 | } |
| bapowell | 0:a5d13af495af | 57 | |
| bapowell | 0:a5d13af495af | 58 | void XPlaneUdpDATA::setDataChanged() { |
| bapowell | 0:a5d13af495af | 59 | _dataChanged = true; |
| bapowell | 0:a5d13af495af | 60 | } |
| bapowell | 0:a5d13af495af | 61 | |
| bapowell | 0:a5d13af495af | 62 | void XPlaneUdpDATA::resetDataChanged() { |
| bapowell | 0:a5d13af495af | 63 | _dataChanged = false; |
| bapowell | 0:a5d13af495af | 64 | } |
| bapowell | 0:a5d13af495af | 65 | |
| bapowell | 0:a5d13af495af | 66 | void XPlaneUdpDATA::toString(FILE * outputStream) { |
| bapowell | 0:a5d13af495af | 67 | fprintf(outputStream, "idx=%d, 0:%f 1:%f 2:%f 3:%f 4:%f 5:%f 6:%f 7:%f, revBytes=%d", |
| bapowell | 0:a5d13af495af | 68 | _messageIndex, |
| bapowell | 0:a5d13af495af | 69 | _data[0], _data[1], _data[2], _data[3], _data[4], _data[5], _data[6], _data[7], |
| bapowell | 0:a5d13af495af | 70 | _reverseByteOrder); |
| bapowell | 0:a5d13af495af | 71 | } |