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Fix broken angle calculation with negative epsilon numbers #49

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Fix broken angle calculation with negative epsilon numbers #49

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4 changes: 2 additions & 2 deletions Sources/Engine/Math/Functions.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -74,7 +74,7 @@ FLOAT Sin(ANGLE a)
{
double aWrapped = WrapAngle(a);
double aIn90 = fmod(aWrapped, 90.0);
int iQuadrant = int(aWrapped/90.0);
int iQuadrant = int(aWrapped/90.0)%4;
double fSin = adSinQuadrants[iQuadrant][0]*
sin((aIn90+adSinQuadrants[iQuadrant][1])*PI/ANGLE_180);
return FLOAT (fSin);
Expand All @@ -83,7 +83,7 @@ FLOAT Cos(ANGLE a)
{
double aWrapped = WrapAngle(a);
double aIn90 = fmod(aWrapped, 90.0);
int iQuadrant = int(aWrapped/90.0);
int iQuadrant = int(aWrapped/90.0)%4;
double fCos = adCosQuadrants[iQuadrant][0]*
sin((aIn90+adCosQuadrants[iQuadrant][1])*PI/ANGLE_180);
return FLOAT (fCos);
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