public static FPQuaternion Slerp(FPQuaternion quaternion1, FPQuaternion quaternion2, pfloat amount)
{
pfloat num2;
pfloat num3;
FPQuaternion quaternion;
pfloat num = amount;
pfloat num4 = (((quaternion1.x * quaternion2.x) + (quaternion1.y * quaternion2.y)) + (quaternion1.z * quaternion2.z)) + (quaternion1.w * quaternion2.w);
bool flag = false;
if (num4 < 0f)
{
flag = true;
num4 = -num4;
}
if (num4 > 0.999999f)
{
num3 = 1f - num;
num2 = flag ? -num : num;
}
else
{
pfloat num5 = FPMath.ACos(num4);
pfloat num6 = (1.0f / FPMath.Sin(num5));
num3 = (FPMath.Sin(((1f - num) * num5))) * num6;
num2 = flag ? ((-FPMath.Sin((num * num5))) * num6) : ((FPMath.Sin((num * num5))) * num6);
}
quaternion.x = (num3 * quaternion1.x) + (num2 * quaternion2.x);
quaternion.y = (num3 * quaternion1.y) + (num2 * quaternion2.y);
quaternion.z = (num3 * quaternion1.z) + (num2 * quaternion2.z);
quaternion.w = (num3 * quaternion1.w) + (num2 * quaternion2.w);
return(quaternion);
}
public static pfloat Angle(FPVector2 from, FPVector2 to)
{
var num = FPMath.Sqrt(from.sqrMagnitude * to.sqrMagnitude);
return((float)num < 1.0000000036274937E-15 ? pfloat.Zero : FPMath.ACos(FPMath.Clamp(FPVector2.Dot(from, to) / num, -pfloat.One, pfloat.One)) * (pfloat)57.29578f);
}