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Start the ATIS recorded message at a random position into the broadcast when the radio is tuned into it

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This commit is contained in:
daveluff 2003-01-07 14:41:49 +00:00
parent c8a67cb773
commit 086be2b474
1 changed files with 11 additions and 2 deletions
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13
src/ATC/ATCVoice.cxx
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@ -28,6 +28,7 @@
#include <simgear/misc/sg_path.hxx>
#include <simgear/debug/logstream.hxx>
#include <simgear/misc/sgstream.hxx>
#include <simgear/math/sg_random.h>
#include <Main/globals.hxx>
#include "ATCVoice.hxx"
@ -143,7 +144,8 @@ unsigned char* FGATCVoice::WriteMessage(char* message, int& len, bool& dataOK) {
dataOK = false;
return(NULL);
}
unsigned char* tmpbuf = new unsigned char[cumLength];
unsigned char* outbuf = new unsigned char[cumLength];
len = cumLength;
unsigned int bufpos = 0;
@ -162,10 +164,17 @@ unsigned char* FGATCVoice::WriteMessage(char* message, int& len, bool& dataOK) {
dataOK = false;
return(NULL);
}
memcpy(outbuf + bufpos, rawSoundData + wdptr[i].offset, wdptr[i].length);
memcpy(tmpbuf + bufpos, rawSoundData + wdptr[i].offset, wdptr[i].length);
bufpos += wdptr[i].length;
}
// tmpbuf now contains the message starting at the beginning - but we want it to start at a random position.
unsigned int offsetIn = (int)(cumLength * sg_random());
if(offsetIn > cumLength) offsetIn = cumLength;
memcpy(outbuf, tmpbuf + offsetIn, (cumLength - offsetIn));
memcpy(outbuf + (cumLength - offsetIn), tmpbuf, offsetIn);
delete[] tmpbuf;
delete[] wdptr;
dataOK = true;