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This commit is contained in:
Glenn Maynard
2006-09-26 06:56:39 +00:00
parent 0709d5ee4d
commit 5595cd0443
3 changed files with 8 additions and 8 deletions
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stepmania/src/RageMath.cpp
+4 -4
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@@ -651,13 +651,13 @@ float RageFastCos( float x )
return RageFastSin( x + 0.5f*PI );
}
float RageQuadradtic::Evaluate( float fT ) const
float RageQuadratic::Evaluate( float fT ) const
{
// optimized (m_fA * fT*fT*fT) + (m_fB * fT*fT) + (m_fC * fT) + m_fD;
return ((m_fA*fT + m_fB)*fT + m_fC)*fT + m_fD;
}
void RageQuadradtic::SetFromBezier( float fX1, float fX2, float fX3, float fX4 )
void RageQuadratic::SetFromBezier( float fX1, float fX2, float fX3, float fX4 )
{
m_fD = fX1;
m_fC = 3.0f * (fX2 - fX1);
@@ -665,7 +665,7 @@ void RageQuadradtic::SetFromBezier( float fX1, float fX2, float fX3, float fX4 )
m_fA = fX4 - fX1 - m_fC - m_fB;
}
void RageQuadradtic::GetBezier( float &fX1, float &fX2, float &fX3, float &fX4 ) const
void RageQuadratic::GetBezier( float &fX1, float &fX2, float &fX3, float &fX4 ) const
{
fX1 = m_fD;
fX2 = m_fD + m_fC/3.0f;
@@ -673,7 +673,7 @@ void RageQuadradtic::GetBezier( float &fX1, float &fX2, float &fX3, float &fX4 )
fX4 = m_fD + m_fC + m_fB + m_fA;
}
float RageQuadradtic::GetSlope( float fT ) const
float RageQuadratic::GetSlope( float fT ) const
{
return 3*m_fA*fT*fT + 2*m_fB*fT + m_fC;
}