public Box2d(AxisAlignedBox2d aaBox)
{
Extent = 0.5 * aaBox.Diagonal;
Center = aaBox.Min + Extent;
AxisX = Vector2D.AxisX;
AxisY = Vector2D.AxisY;
}
public AxisAlignedBox2d Intersect(AxisAlignedBox2d box)
{
AxisAlignedBox2d intersect = new AxisAlignedBox2d(
Math.Max(Min.x, box.Min.x), Math.Max(Min.y, box.Min.y),
Math.Min(Max.x, box.Max.x), Math.Min(Max.y, box.Max.y));
if (intersect.Height <= 0 || intersect.Width <= 0)
{
return(AxisAlignedBox2d.Empty);
}
else
{
return(intersect);
}
}
public AxisAlignedBox2d(AxisAlignedBox2d o)
{
Min = new Vector2D(o.Min);
Max = new Vector2D(o.Max);
}
public bool Intersects(AxisAlignedBox2d box)
{
return(!((box.Max.x < Min.x) || (box.Min.x > Max.x) || (box.Max.y < Min.y) || (box.Min.y > Max.y)));
}
public bool Contains(AxisAlignedBox2d box2)
{
return(Contains(box2.Min) && Contains(box2.Max));
}
public void Contain(AxisAlignedBox2d box)
{
Contain(box.Min);
Contain(box.Max);
}