public static Fix32 Cos(Fix32 theta)
{
Fix32 sin = Sin(theta);
Fix32 cos = Fix32.Sqrt(Fix32.One - (sin * sin));
if (Fix32.Pi / (Fix32)2 < theta && theta < Fix32.Pi * (Fix32)3 / (Fix32)2)
{
cos = -cos;
}
else if (-Fix32.Pi * (Fix32)3 / (Fix32)2 < theta && theta < -Fix32.Pi / (Fix32)2)
{
cos = -cos;
}
return(cos);
}
/// <summary>
/// Returns the euclidean distance between two coordinates.
/// Note: Heavier than DistanceSquared, because of the Sqrt call.
/// </summary>
/// <param name="v1">first position</param>
/// <param name="v2">second position</param>
/// <returns>distance between the points</returns>
public static Fix32 Distance(Vector3F v1, Vector3F v2)
{
return(Fix32.Sqrt(DistanceSquared(v1, v2)));
}
public static Fix32 SinToCos(Fix32 sin)
{
return(Fix32.Sqrt(Fix32.One - (sin * sin)));
}
