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Parse direct BPM changes correctly (source: http://www.angelfire.com/ga4/jackatrades606606/BMS_Reading_Tutorial.txt )

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Ben Anderson
2004-11-01 01:49:50 +00:00
parent ca02ee68d0
commit 806f519d16
1 changed files with 16 additions and 3 deletions
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stepmania/src/NotesLoaderBMS.cpp
+16 -3
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@@ -666,9 +666,22 @@ bool BMSLoader::LoadFromDir( CString sDir, Song &out )
break;
}
case 3: { // bpm change
BPMSegment newSeg( NoteRowToBeat(iStepIndex), (float) atof(value_data) );
out.AddBPMSegment( newSeg );
LOG->Trace( "Inserting new BPM change at beat %f, BPM %f", newSeg.m_fStartBeat, newSeg.m_fBPM );
// A 03: is a set of hex pairs in the same layout as a normal
// (note-defining) line, where each non-0 hex pair is a BPM
// change at that point.
int totalPairs = value_data.GetLength() / 2;
for (int i = 0; i < (totalPairs*2); i+=2)
{
if( value_data.substr(i,2) != "00" )
{
CString thisPair = value_data.substr(i,2);
int thisBPM;
sscanf( thisPair, "%x", &thisBPM ); // data is in hexadecimal
BPMSegment newSeg( NoteRowToBeat(iStepIndex+(1/(totalPairs*ROWS_PER_MEASURE))), (float) thisBPM );
out.AddBPMSegment( newSeg );
LOG->Trace( "Inserting new BPM change at beat %f, BPM %f", newSeg.m_fStartBeat, newSeg.m_fBPM );
}
}
break;
}