public long Distance(long otherX, long otherY)
{
temp1 = this.x - otherX;
temp1 *= temp1;
temp2 = this.y - otherY;
temp2 *= temp2;
return(FixedMath.Sqrt((temp1 + temp2) >> FixedMath.SHIFT_AMOUNT));
}
public void Normalize()
{
long magnitude = FixedMath.Sqrt(x.Mul(x) + y.Mul(y) + z.Mul(z));
x = x.Div(magnitude);
y = y.Div(magnitude);
z = z.Div(magnitude);
}
/// <summary>
/// This vector's magnitude.
/// </summary>
public long Magnitude()
{
temp1 = (this.x * this.x + this.y * this.y);
if (temp1 == 0)
{
return(0);
}
temp1 >>= FixedMath.SHIFT_AMOUNT;
return(FixedMath.Sqrt(temp1));
}
public long Distance(Vector3d other)
{
long tX = other.x - x;
tX *= tX;
tX >>= FixedMath.SHIFT_AMOUNT;
long tY = other.y - y;
tY *= tY;
tY >>= FixedMath.SHIFT_AMOUNT;
long tZ = other.z - z;
tZ *= tZ;
tZ >>= FixedMath.SHIFT_AMOUNT;
return(FixedMath.Sqrt(tX + tY + tZ));
}
public static Vector2d GenerateRandomPointOnCircle(bool evenDistribution = false)
{
long angle = LSUtility.GetRandomOne().Mul(FixedMath.TwoPi);
long distance = LSUtility.GetRandomOne();
if (evenDistribution)
{
distance = FixedMath.Sqrt(distance);
}
Vector2d randomOffset = new Vector2d(
FixedMath.Trig.Cos(angle),
FixedMath.Trig.Sin(angle)
) * distance;
return(randomOffset);
}
public static long Cos(long theta)
{
long sin = Sin(theta);
return(FixedMath.Sqrt(FixedMath.One - (sin.Mul(sin))));
}