/// <summary>
/// Determines if this rectangle intersets with rect.
/// </summary>
/// <param name="rect"></param>
/// <returns></returns>
public bool CollidesWith(AARectangle rect)
{
return((rect.X < this.X + this.Width) &&
(this.X < (rect.X + rect.Width)) &&
(rect.Y < this.Y + this.Height) &&
(this.Y < rect.Y + rect.Height));
}
/// <summary>
/// Determines if the given rect is entirely contained within this rectangle.
/// </summary>
/// <param name="rect"></param>
/// <returns></returns>
public bool Contains(AARectangle rect)
{
return((this.X <= rect.X) &&
((rect.X + rect.Width) <= (this.X + this.Width)) &&
(this.Y <= rect.Y) &&
((rect.Y + rect.Height) <= (this.Y + this.Height)));
}
/// <summary>
/// Creates a rectangle that represents the union between a and b.
/// </summary>
/// <param name="a"></param>
/// <param name="b"></param>
/// <returns></returns>
public static AARectangle Union(AARectangle a, AARectangle b)
{
double x1 = Math.Min(a.X, b.X);
double x2 = Math.Max(a.X + a.Width, b.X + b.Width);
double y1 = Math.Min(a.Y, b.Y);
double y2 = Math.Max(a.Y + a.Height, b.Y + b.Height);
return(new AARectangle(x1, y1, x2 - x1, y2 - y1));
}
/// <summary>
/// Creates a rectangle that represents the union between a and b.
/// </summary>
/// <param name="a"></param>
/// <param name="b"></param>
/// <returns></returns>
public static AARectangle Union(AARectangle a, AARectangle b)
{
double x1 = Math.Min(a.X, b.X);
double x2 = Math.Max(a.X + a.Width, b.X + b.Width);
double y1 = Math.Min(a.Y, b.Y);
double y2 = Math.Max(a.Y + a.Height, b.Y + b.Height);
return new AARectangle(x1, y1, x2 - x1, y2 - y1);
}
/// <summary>
/// Creates a rectangle that represents the intersetion between a and
/// b. If there is no intersection, null is returned.
/// </summary>
/// <param name="a"></param>
/// <param name="b"></param>
/// <returns></returns>
public static AARectangle Intersect(AARectangle a, AARectangle b)
{
double x1 = Math.Max(a.X, b.X);
double x2 = Math.Min(a.X + a.Width, b.X + b.Width);
double y1 = Math.Max(a.Y, b.Y);
double y2 = Math.Min(a.Y + a.Height, b.Y + b.Height);
if (x2 >= x1 &&
y2 >= y1)
{
return(new AARectangle(x1, y1, x2 - x1, y2 - y1));
}
return(Empty);
}
/// <summary>
/// Creates a rectangle that represents the intersetion between a and
/// b. If there is no intersection, null is returned.
/// </summary>
/// <param name="a"></param>
/// <param name="b"></param>
/// <returns></returns>
public static AARectangle Intersect(AARectangle a, AARectangle b)
{
double x1 = Math.Max(a.X, b.X);
double x2 = Math.Min(a.X + a.Width, b.X + b.Width);
double y1 = Math.Max(a.Y, b.Y);
double y2 = Math.Min(a.Y + a.Height, b.Y + b.Height);
if (x2 >= x1
&& y2 >= y1)
{
return new AARectangle(x1, y1, x2 - x1, y2 - y1);
}
return Empty;
}
/// <summary>
/// Creates a rectangle
/// that is inflated by the specified amount.
/// </summary>
/// <param name="rect"></param>
/// <param name="x"></param>
/// <param name="y"></param>
/// <returns></returns>
public static AARectangle Inflate(AARectangle rect, float x, float y)
{
return(new AARectangle(rect.X - x, rect.Y - y, rect.Width + 2 * x, rect.Height + 2 * y));
}
public bool Equals(AARectangle other)
{
return(_x.Equals(other._x) && _y.Equals(other._y) && _width.Equals(other._width) && _height.Equals(other._height));
}
/// <summary>
/// Creates a rectangle
/// that is inflated by the specified amount.
/// </summary>
/// <param name="rect"></param>
/// <param name="x"></param>
/// <param name="y"></param>
/// <returns></returns>
public static AARectangle Inflate(AARectangle rect, float x, float y)
{
return new AARectangle(rect.X - x, rect.Y - y, rect.Width + 2 * x, rect.Height + 2 * y);
}
public bool Equals(AARectangle other)
{
return _x.Equals(other._x) && _y.Equals(other._y) && _width.Equals(other._width) && _height.Equals(other._height);
}
/// <summary>
/// Determines if this rectangle intersets with rect.
/// </summary>
/// <param name="rect"></param>
/// <returns></returns>
public bool CollidesWith(AARectangle rect)
{
return (rect.X < this.X + this.Width) &&
(this.X < (rect.X + rect.Width)) &&
(rect.Y < this.Y + this.Height) &&
(this.Y < rect.Y + rect.Height);
}
/// <summary>
/// Determines if the given rect is entirely contained within this rectangle.
/// </summary>
/// <param name="rect"></param>
/// <returns></returns>
public bool Contains(AARectangle rect)
{
return (this.X <= rect.X) &&
((rect.X + rect.Width) <= (this.X + this.Width)) &&
(this.Y <= rect.Y) &&
((rect.Y + rect.Height) <= (this.Y + this.Height));
}
