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
Diff: XPlaneUdp/XPlaneUdpEncoder.h
- Revision:
- 0:a5d13af495af
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/XPlaneUdp/XPlaneUdpEncoder.h Wed Dec 21 22:29:59 2011 +0000
@@ -0,0 +1,41 @@
+#ifndef XPLANEUDPENCODER_H_INCLUDED
+#define XPLANEUDPENCODER_H_INCLUDED
+
+#include "XPlaneUdp.h"
+#include "XPlaneUdpDATA.h"
+#include "XPlaneUdpDATAMap.h"
+#include "XPlaneUdpDREF.h"
+
+#define DATAREF_PACKET_SIZE 509 // "DREF" + '\x00' + 4-byte_value + 500-char_name
+
+class XPlaneUdpEncoder {
+public:
+
+ //XPlaneUdpEncoder();
+
+ void setDebug(bool debug);
+
+ /**
+ * Encode a DATA packet from the messages in the given XPlaneUdpDATAMap.
+ * The encoded data will be placed at the location given by udpBuffer.
+ * If changedDataOnly is true, then only XPlaneUdpDATA messages with dataChanged will be encoded.
+ * Return number of bytes encoded into udpBuffer.
+ * Return -1 if there's more data in the map than what will fit in udpBuffer (> maxBufferLen).
+ */
+ int encodeFromDATAMap(char * udpBuffer, int maxBufferLen, XPlaneUdpDATAMap & DATAMap, bool changedDataOnly);
+
+ /**
+ * Encode a DataRef (DREF) packet, using the given DataRef.
+ * The encoded data will be placed at the location given by udpBuffer.
+ * Return number of bytes encoded into udpBuffer.
+ * Return -1 if there's more data in the map than what will fit in udpBuffer (> maxBufferLen).
+ */
+ int encodeDataRef(char * udpBuffer, int maxBufferLen, XPlaneUdpDREF & dref);
+
+private:
+
+ bool _debug;
+};
+
+
+#endif // XPLANEUDPENCODER_H_INCLUDED