/// <summary>Provides the next step.</summary>
/// <remarks>Provides the next step.</remarks>
/// <param name="plan">the planned route</param>
/// <param name="fact">
/// the currently established route, or
/// <code>null</code> if nothing is established
/// </param>
/// <returns>
/// one of the constants defined in this class, indicating
/// either the next step to perform, or success, or failure.
/// 0 is for success, a negative value for failure.
/// </returns>
public override int NextStep(RouteInfo plan, RouteInfo fact)
{
Args.NotNull(plan, "Planned route");
int step = Unreachable;
if ((fact == null) || (fact.GetHopCount() < 1))
{
step = FirstStep(plan);
}
else
{
if (plan.GetHopCount() > 1)
{
step = ProxiedStep(plan, fact);
}
else
{
step = DirectStep(plan, fact);
}
}
return(step);
}
/// <summary>Provides the next step.</summary> /// <remarks>Provides the next step.</remarks> /// <param name="plan">the planned route</param> /// <param name="fact"> /// the currently established route, or /// <code>null</code> if nothing is established /// </param> /// <returns> /// one of the constants defined in this interface, indicating /// either the next step to perform, or success, or failure. /// 0 is for success, a negative value for failure. /// </returns> public abstract int NextStep(RouteInfo plan, RouteInfo fact);
// nextStep
/// <summary>Determines the first step to establish a route.</summary>
/// <remarks>Determines the first step to establish a route.</remarks>
/// <param name="plan">the planned route</param>
/// <returns>the first step</returns>
protected internal virtual int FirstStep(RouteInfo plan)
{
return((plan.GetHopCount() > 1) ? ConnectProxy : ConnectTarget);
}
