public void rotate(double angle, FVector2D n)
{
double newX = x*Math.Cos(angle) - y*Math.Sin(angle);
double newY = y * Math.Cos(angle) + x * Math.Sin(angle);
n.x = newX;
n.y = newY;
}
/// <summary>
/// The main entry point for the application.
/// </summary>
static void Main(string[] args)
{
FVector2D vector = new FVector2D(0, 1);
using (FManager game = new FManager())
{
game.Run();
}
}
public void subtract(FVector2D v, FVector2D n)
{
if (v != null && n != null)
{
n.x = this.x - v.x;
n.y = this.y - v.y;
}
}
public void add(FVector2D v, FVector2D n)
{
if (v != null && n != null)
{
n.x = v.x + this.x;
n.y = v.y + this.y;
}
}
public void translate(double _x, double _y, FVector2D n)
{
n.x = x + _x;
n.y = y + _y;
}
public void scale(double scalar, FVector2D n)
{
n.x = x*scalar;
n.y = y * scalar;
}
public double getAngleFrom(FVector2D v)
{
return Math.Atan2(this.y-v.y, this.x-v.x);
}