/// <summary>
/// Returns the distance from this to the other rect. 0 if there is an overlap.
/// </summary>
/// <param name="Other">Other rectangle.</param>
public double Distance(C2DRect Other)
{
if (this.Overlaps(Other))
{
return(0);
}
if (Other.GetLeft() > this.BottomRight.x)
{
// Other is to the right
if (Other.GetBottom() > this.TopLeft.y)
{
// Other is to the top right
C2DPoint ptTopRight = new C2DPoint(BottomRight.x, TopLeft.y);
return(ptTopRight.Distance(new C2DPoint(Other.GetLeft(), Other.GetBottom())));
}
else if (Other.GetTop() < this.BottomRight.y)
{
// Other to the bottom right
return(BottomRight.Distance(Other.TopLeft));
}
else
{
// to the right
return(Other.GetLeft() - this.BottomRight.x);
}
}
else if (Other.GetRight() < this.TopLeft.x)
{
// Other to the left
if (Other.GetBottom() > this.TopLeft.y)
{
// Other is to the top left
return(TopLeft.Distance(Other.BottomRight));
}
else if (Other.GetTop() < this.BottomRight.y)
{
// Other to the bottom left
C2DPoint ptBottomLeft = new C2DPoint(TopLeft.x, BottomRight.y);
return(ptBottomLeft.Distance(new C2DPoint(Other.GetRight(), Other.GetTop())));
}
else
{
//Just to the left
return(this.TopLeft.x - Other.GetRight());
}
}
else
{
// There is horizontal overlap;
if (Other.GetBottom() > TopLeft.y)
{
return(Other.GetBottom() - TopLeft.y);
}
else
{
return(BottomRight.y - Other.GetTop());
}
}
}
