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don't use RandomFloat(int*) interface; do this directly, since it

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really does expect something like an LCG
This commit is contained in:
Glenn Maynard
2006-10-18 01:04:34 +00:00
parent 15d6f3b18f
commit 697baec3c8
1 changed files with 5 additions and 5 deletions
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stepmania/src/ArrowEffects.cpp
+5 -5
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@@ -251,12 +251,12 @@ float ArrowEffects::GetYOffset( const PlayerState* pPlayerState, int iCol, float
float fScrollSpeed = pPlayerState->m_PlayerOptions.GetCurrent().m_fScrollSpeed;
if( pPlayerState->m_PlayerOptions.GetCurrent().m_fRandomSpeed > 0 && !bAbsolute )
{
int seed = GAMESTATE->m_iStageSeed + ( BeatToNoteRow( fNoteBeat ) << 8 ) + (iCol * 100);
/* Generate a deterministically "random" speed for each arrow. */
unsigned seed = GAMESTATE->m_iStageSeed + ( BeatToNoteRow( fNoteBeat ) << 8 ) + (iCol * 100);
/* Temporary hack: the first call to RandomFloat isn't "random"; it takes an extra
* call to get the RNG rolling. */
RandomFloat( seed );
float fRandom = RandomFloat( seed );
for( int i = 0; i < 3; ++i )
seed = ((seed * 1664525u) + 1013904223u) & 0xFFFFFFFF;
float fRandom = seed / 4294967296.0f;
/* Random speed always increases speed: a random speed of 10 indicates [1,11].
* This keeps it consistent with other mods: 0 means no effect. */