/// <summary>
/// Constructs a Colliders object with the given capacity allocated for each Collider type.
/// </summary>
/// <param name="capacity">How many objects should be preallocated in each collection.</param>
/// <param name="capacityIncrement">How much to increment capacity for each collection.</param>
public Colliders(int capacity, int capacityIncrement = 32)
{
spheres = new MappedPopList <SphereCollider> (capacity, capacityIncrement);
planes = new MappedPopList <PlaneCollider> (capacity, capacityIncrement);
}
