public static void Hermite(ref Vector4 value1, ref Vector4 tangent1, ref Vector4 value2, ref Vector4 tangent2, double amount, out Vector4 result)
{
#if (USE_FARSEER)
result.W = SilverSpriteMathHelper.Hermite(value1.W, tangent1.W, value2.W, tangent2.W, amount);
result.X = SilverSpriteMathHelper.Hermite(value1.X, tangent1.X, value2.X, tangent2.X, amount);
result.Y = SilverSpriteMathHelper.Hermite(value1.Y, tangent1.Y, value2.Y, tangent2.Y, amount);
result.Z = SilverSpriteMathHelper.Hermite(value1.Z, tangent1.Z, value2.Z, tangent2.Z, amount);
#else
result.W = MathHelper.Hermite(value1.W, tangent1.W, value2.W, tangent2.W, amount);
result.X = MathHelper.Hermite(value1.X, tangent1.X, value2.X, tangent2.X, amount);
result.Y = MathHelper.Hermite(value1.Y, tangent1.Y, value2.Y, tangent2.Y, amount);
result.Z = MathHelper.Hermite(value1.Z, tangent1.Z, value2.Z, tangent2.Z, amount);
#endif
}
public static double SmoothStep(double value1, double value2, double amount)
{
// It is expected that 0 < amount < 1
// If amount < 0, return value1
// If amount > 1, return value2
#if (USE_FARSEER)
double result = SilverSpriteMathHelper.Clamp(amount, 0f, 1f);
result = SilverSpriteMathHelper.Hermite(value1, 0f, value2, 0f, result);
#else
double result = MathHelper.Clamp(amount, 0f, 1f);
result = MathHelper.Hermite(value1, 0f, value2, 0f, result);
#endif
return(result);
}
public static void Hermite(ref Vector3 value1, ref Vector3 tangent1, ref Vector3 value2, ref Vector3 tangent2, double amount, out Vector3 result)
{
result.X = MathHelper.Hermite(value1.X, tangent1.X, value2.X, tangent2.X, amount);
result.Y = MathHelper.Hermite(value1.Y, tangent1.Y, value2.Y, tangent2.Y, amount);
result.Z = MathHelper.Hermite(value1.Z, tangent1.Z, value2.Z, tangent2.Z, amount);
}