/// <summary>
/// Clamp the length of a vector.
/// </summary>
/// <param name="a">Vector to clamp.</param>
/// <param name="maxlen">Maximal length.</param>
/// <returns>Clamped vector.</returns>
public static Vec2 Clamp(Vec2 a, double maxlen)
{
if (a.Length <= maxlen)
return a;
else
return a.Unit * maxlen;
}
/// <summary>
/// Floor each component.
/// </summary>
public static Vec2i Floor(Vec2 v)
{
return new Vec2i(Floor(v.X), Floor(v.Y));
}
/// <summary>
/// Ceil each component.
/// </summary>
public static Vec2i Ceil(Vec2 v)
{
return new Vec2i(Ceil(v.X), Ceil(v.Y));
}
/// <summary>
/// Multiply two vectors componentwise.
/// </summary>
/// <param name="a">First vector.</param>
/// <param name="b">Second vector.</param>
public static Vec2 CompMult(Vec2 a, Vec2 b)
{
return new Vec2(a.X * b.X, a.Y * b.Y);
}
/// <summary>
/// Divide one vector by another componentwise.
/// </summary>
/// <param name="a">First vector.</param>
/// <param name="b">Second vector.</param>
public static Vec2 CompDiv(Vec2 a, Vec2 b)
{
return new Vec2(a.X / b.X, a.Y / b.Y);
}
/// <summary>
/// Rotate a vector 90 degrees counter-clockwise.
/// </summary>
/// <param name="a">Vector to rotate.</param>
public static Vec2 Rotate90(Vec2 a)
{
return new Vec2(-a.Y, a.X);
}
/// <summary>
/// Rotate a vector.
/// </summary>
/// <param name="a">Vector to rotate.</param>
/// <param name="angle">Ratation angle.</param>
/// <returns>Rotated vector.</returns>
public static Vec2 Rotate(Vec2 a, double angle)
{
double s = Math.Sin(angle);
double c = Math.Cos(angle);
return new Vec2(a.X * c - a.Y * s, a.X * s + a.Y * c);
}
/// <summary>
/// Get the skew product of two vectors.
/// </summary>
/// <param name="a">First vector.</param>
/// <param name="b">Second vector.</param>
/// <returns></returns>
public static double Skew(Vec2 a, Vec2 b)
{
return a.X * b.Y - a.Y * b.X;
}
/// <summary>
/// Get the dot product of two vectors.
/// </summary>
/// <param name="a">First vector.</param>
/// <param name="b">Second vector.</param>
public static double Dot(Vec2 a, Vec2 b)
{
return a.X * b.X + a.Y * b.Y;
}
public override void MouseMove(Vec2 position)
{
base.MouseMove(position);
if (client.Player != null)
client.Player.Get<PositionComponent>().Rotation = (Mouse.Position - new Vec2(App.Width, App.Height) / 2).Arg + camera.Rotation;
}
public override void MouseDown(MouseButton button, Vec2 position)
{
base.MouseDown(button, position);
}