/// <summary>
/// Indicates whether any portion of this sphere and the <paramref name="other"/> shape overlap.
/// </summary>
/// <param name="other">The shape to check against this one.</param>
/// <returns>True if any part of both shapes overlap, false if they are entirely separate.</returns>
public bool Intersects(Cylinder other)
{
float errorMargin = MathUtils.FlopsErrorMargin;
float cylinderHalfHeight = other.Height / 2f;
if (other.Center.Y + cylinderHalfHeight < Center.Y - Radius + errorMargin ||
other.Center.Y - cylinderHalfHeight > Center.Y + Radius + errorMargin)
{
return(false);
}
float distanceToCylinderTop = Math.Abs((other.Center.Y + cylinderHalfHeight) - Center.Y);
float distanceToCylinderBottom = Math.Abs((other.Center.Y - cylinderHalfHeight) - Center.Y);
float sphereRadiusAtCylinderTop = distanceToCylinderTop > Radius ? 0f : GetRadius(distanceToCylinderTop);
float sphereRadiusAtCylinderBottom = distanceToCylinderBottom > Radius ? 0f : GetRadius(distanceToCylinderBottom);
return(Vector3.Distance(Center[0, 2], other.Center[0, 2])
- Math.Max(sphereRadiusAtCylinderTop, sphereRadiusAtCylinderBottom)
<= other.Radius + errorMargin);
}
/// <summary>
/// Indicates whether or not the given shape is contained entirely within this sphere (no part of the <paramref name="other"/>
/// shape may be outside this one).
/// </summary>
/// <param name="other">The shape to check.</param>
/// <returns>True if the other shape is completely within this sphere, false if any part of it
/// is outside the sphere.</returns>
public bool Contains(Cylinder other)
{
return(Contains(other.ToSymmetricalConicalFrustum()));
}
/// <summary>
/// Indicates whether any portion of this cone and the <paramref name="other"/> shape overlap.
/// </summary>
/// <param name="other">The shape to check against this one.</param>
/// <returns>True if any part of both shapes overlap, false if they are entirely separate.</returns>
public bool Intersects(Cylinder other)
{
return(other.ToSymmetricalConicalFrustum().Intersects(this));
}
