public GameAngle GetAngle(Vector2D target)
{
var radianAngle = MathHelper.Atan2(target._y, target._x) - MathHelper.Atan2(_y, _x);
var degreeAngle = radianAngle.ToDegrees();
return(GameAngle.FromDegrees(degreeAngle));
}
public Point2D Rotate(Point2D center, GameAngle angle)
{
float cos, sin;
angle.CosSin(out cos, out sin);
return(RotatePointInternal(this, center, cos, sin));
}
/// <summary>
/// Initializes a new instance of the <see cref="DirectionalPosition"/> class.
/// </summary>
public DirectionalPosition(IDirectionalPosition directionalPosition)
{
#region Argument Check
if (directionalPosition == null)
{
throw new ArgumentNullException("directionalPosition");
}
#endregion
_position = directionalPosition.Position;
_angle = directionalPosition.Angle;
}
public static Point2D[] Rotate(IEnumerable <Point2D> values, Point2D center, GameAngle angle)
{
#region Argument Check
if (values == null)
{
throw new ArgumentNullException("values");
}
#endregion
float cos, sin;
angle.CosSin(out cos, out sin);
return(values.Select(value => RotatePointInternal(value, center, cos, sin)).ToArray());
}
/// <summary>
/// Initializes a new instance of the <see cref="DirectionalPosition"/> structure.
/// </summary>
public DirectionalPosition(Point2D position, GameAngle angle)
{
_position = position;
_angle = angle;
}