void SSCLoader::ProcessStops( TimingData &out, const RString sParam )
{
vector<RString> arrayStopExpressions;
split( sParam, ",", arrayStopExpressions );
for( unsigned b=0; b<arrayStopExpressions.size(); b++ )
{
vector<RString> arrayStopValues;
split( arrayStopExpressions[b], "=", arrayStopValues );
if( arrayStopValues.size() != 2 )
{
LOG->UserLog("Song file",
this->GetSongTitle(),
"has an invalid #STOPS value \"%s\" (must have exactly one '='), ignored.",
arrayStopExpressions[b].c_str() );
continue;
}
const float fBeat = StringToFloat( arrayStopValues[0] );
const float fNewStop = StringToFloat( arrayStopValues[1] );
if( fBeat >= 0 && fNewStop > 0 )
out.AddSegment( StopSegment(BeatToNoteRow(fBeat), fNewStop) );
else
{
LOG->UserLog("Song file",
this->GetSongTitle(),
"has an invalid Stop at beat %f, length %f.",
fBeat, fNewStop );
}
}
}
void run()
{
#define CHECK(call, exp) \
{ \
float ret = call; \
if( call != exp ) { \
LOG->Warn( "Line %i: Got %f, expected %f", __LINE__, ret, exp); \
return; \
} \
}
TimingData test;
test.AddBPMSegment( BPMSegment(0, 60) );
/* First, trivial sanity checks. */
CHECK( test.GetBeatFromElapsedTime(60), 60.0f );
CHECK( test.GetElapsedTimeFromBeat(60), 60.0f );
/* The first BPM segment extends backwards in time. */
CHECK( test.GetBeatFromElapsedTime(-60), -60.0f );
CHECK( test.GetElapsedTimeFromBeat(-60), -60.0f );
CHECK( test.GetBeatFromElapsedTime(100000), 100000.0f );
CHECK( test.GetElapsedTimeFromBeat(100000), 100000.0f );
CHECK( test.GetBeatFromElapsedTime(-100000), -100000.0f );
CHECK( test.GetElapsedTimeFromBeat(-100000), -100000.0f );
CHECK( test.GetBPMAtBeat(0), 60.0f );
CHECK( test.GetBPMAtBeat(100000), 60.0f );
CHECK( test.GetBPMAtBeat(-100000), 60.0f );
/* 120BPM at beat 10: */
test.AddBPMSegment( BPMSegment(10, 120) );
CHECK( test.GetBPMAtBeat(9.99), 60.0f );
CHECK( test.GetBPMAtBeat(10), 120.0f );
CHECK( test.GetBeatFromElapsedTime(9), 9.0f );
CHECK( test.GetBeatFromElapsedTime(10), 10.0f );
CHECK( test.GetBeatFromElapsedTime(10.5), 11.0f );
CHECK( test.GetElapsedTimeFromBeat(9), 9.0f );
CHECK( test.GetElapsedTimeFromBeat(10), 10.0f );
CHECK( test.GetElapsedTimeFromBeat(11), 10.5f );
/* Add a 5-second stop at beat 10. */
test.AddStopSegment( StopSegment(10, 5) );
/* The stop shouldn't affect GetBPMAtBeat at all. */
CHECK( test.GetBPMAtBeat(9.99), 60.0f );
CHECK( test.GetBPMAtBeat(10), 120.0f );
CHECK( test.GetBeatFromElapsedTime(9), 9.0f );
CHECK( test.GetBeatFromElapsedTime(10), 10.0f );
CHECK( test.GetBeatFromElapsedTime(12), 10.0f );
CHECK( test.GetBeatFromElapsedTime(14), 10.0f );
CHECK( test.GetBeatFromElapsedTime(15), 10.0f );
CHECK( test.GetBeatFromElapsedTime(15.5), 11.0f );
CHECK( test.GetElapsedTimeFromBeat(9), 9.0f );
CHECK( test.GetElapsedTimeFromBeat(10), 10.0f );
CHECK( test.GetElapsedTimeFromBeat(11), 15.5f );
/* Add a 2-second stop at beat 5 and a 5-second stop at beat 15. */
test.m_StopSegments.clear();
test.AddStopSegment( StopSegment(5, 2) );
test.AddStopSegment( StopSegment(15, 5) );
CHECK( test.GetBPMAtBeat(9.99), 60.0f );
CHECK( test.GetBPMAtBeat(10), 120.0f );
CHECK( test.GetBeatFromElapsedTime(1), 1.0f );
CHECK( test.GetBeatFromElapsedTime(2), 2.0f );
CHECK( test.GetBeatFromElapsedTime(5), 5.0f ); // stopped
CHECK( test.GetBeatFromElapsedTime(6), 5.0f ); // stopped
CHECK( test.GetBeatFromElapsedTime(7), 5.0f ); // stop finished
CHECK( test.GetBeatFromElapsedTime(8), 6.0f );
CHECK( test.GetBeatFromElapsedTime(12), 10.0f ); // bpm changes to 120
CHECK( test.GetBeatFromElapsedTime(13), 12.0f );
CHECK( test.GetBeatFromElapsedTime(14), 14.0f );
CHECK( test.GetBeatFromElapsedTime(14.5f), 15.0f ); // stopped
CHECK( test.GetBeatFromElapsedTime(15), 15.0f ); // stopped
CHECK( test.GetBeatFromElapsedTime(17), 15.0f ); // stopped
CHECK( test.GetBeatFromElapsedTime(19.5f), 15.0f ); // stop finished
CHECK( test.GetBeatFromElapsedTime(20), 16.0f );
CHECK( test.GetElapsedTimeFromBeat(1), 1.0f );
CHECK( test.GetElapsedTimeFromBeat(2), 2.0f );
CHECK( test.GetElapsedTimeFromBeat(5), 5.0f ); // stopped
CHECK( test.GetElapsedTimeFromBeat(6), 8.0f );
CHECK( test.GetElapsedTimeFromBeat(10), 12.0f ); // bpm changes to 120
CHECK( test.GetElapsedTimeFromBeat(12), 13.0f );
CHECK( test.GetElapsedTimeFromBeat(14), 14.0f );
CHECK( test.GetElapsedTimeFromBeat(15.0f), 14.5f ); // stopped
CHECK( test.GetElapsedTimeFromBeat(16), 20.0f );
RageTimer foobar;
/* We can look up the time of any given beat, then look up the beat of that
* time and get the original value. (We can't do this in reverse; the beat
* doesn't move during stop segments.) */
int q = 0;
for( float f = -10; f < 250; f += 0.002 )
{
++q;
// const float t = test.GetElapsedTimeFromBeat( f );
const float b = test.GetBeatFromElapsedTime( f );
/* b == f */
// if( fabsf(b-f) > 0.001 )
// {
// LOG->Warn( "%f != %f", b, f );
// return;
// }
}
LOG->Trace("... %i in %f", q, foobar.GetDeltaTime());
TimingData test2;
test2.AddBPMSegment( BPMSegment(0, 60) );
test2.AddStopSegment( StopSegment(0, 1) );
CHECK( test2.GetBeatFromElapsedTime(-1), -1.0f );
CHECK( test2.GetBeatFromElapsedTime(0), 0.0f );
CHECK( test2.GetBeatFromElapsedTime(1), 0.0f );
CHECK( test2.GetBeatFromElapsedTime(2), 1.0f );
CHECK( test2.GetElapsedTimeFromBeat(-1), -1.0f );
CHECK( test2.GetElapsedTimeFromBeat(0), 0.0f );
CHECK( test2.GetElapsedTimeFromBeat(1), 2.0f );
CHECK( test2.GetElapsedTimeFromBeat(2), 3.0f );
}
