public object Clone()
{
var newJug = new Jug(Capacity);
newJug.UpdateContent(Current);
return(newJug);
}
/// <summary>
/// Apply rules
/// </summary>
/// <returns>A <see cref="bool"/> denoting if any solution was applied in current state</returns>
bool ApplyRules()
{
var hasSuccess = false;
foreach (var ruleNumber in _rulesOrder)
{
var rule = _rules[ruleNumber];
var ruleWasApplied = rule(J1, J2);
var alreadyVisited = CheckAlreadyVisited();
hasSuccess = !alreadyVisited && ruleWasApplied;
if (hasSuccess)
{
EnqueuePath(ruleNumber);
break;
}
else
{
J1 = (Jug)_currentState.j1.Clone();
J2 = (Jug)_currentState.j2.Clone();
}
}
return(hasSuccess);
}
public void PopulateOpenList()
{
foreach (var rule in Jug.GetTransferRules())
{
JugPath jugPath;
var jugClone1 = (Jug)_currentPath.J1.Clone();
var jugClone2 = (Jug)_currentPath.J2.Clone();
if (rule.Value(jugClone1, jugClone2))
{
jugPath = new JugPath(jugClone1, jugClone2, _open.Count)
{
Anterior = _currentPath
};
if (!jugPath.Paths.Any(item => item.J1.Current == jugClone1.Current &&
item.J2.Current == jugClone2.Current)
)
{
_open.Add(jugPath);
}
}
}
OrderOpenList();
}
public JugProblemGuloso(int capacity1, int capacity2)
{
_j1 = new Jug(capacity1);
_j2 = new Jug(capacity2);
_open = new List <JugPath>();
_close = new List <JugPath>();
CreateNewJugPath(_j1, _j2, 0);
}
public JugState(int ruleNumber, Jug jug1, Jug jug2)
{
AppliedRule = new List <int>()
{
ruleNumber
};
j1 = (Jug)jug1.Clone();
j2 = (Jug)jug2.Clone();
}
public JugProblem(int m, int n)
{
J1 = new Jug(m);
J2 = new Jug(n);
SetSort(SortType.Asc);
_rules = Jug.GetTransferRules();
_currentState = new JugState(0, J1, J2);
}
public void CreateNewJugPath(Jug j1, Jug j2, int count)
{
_currentPath = new JugPath(j1, j2, count);
_close.Add(_currentPath);
Console.WriteLine("Fechados: {0}",
string.Join(",",
_close.Select(item => $"({item.J1.Current}, {item.J2.Current} [{item.Order}])")
)
);
}
/// <summary>
/// Transfer water from current <see cref="Jug"/> to destination <see cref="Jug"/>
/// </summary>
/// <param name="current">The current jug</param>
/// <param name="destination">The destination jug</param>
/// <returns>A <see cref="bool"/> denoting if this rule was applied</returns>
bool TransferWater(Jug current, Jug destination)
{
if (current.IsEmpty() || destination.IsFull())
{
return(false);
}
var amount = Math.Min(current.Current, destination.EmptySpace);
current.UpdateContent(-amount);
destination.UpdateContent(amount);
return(true);
}
/// <summary>
/// Backtrack for last state to try apply another rule.
/// </summary>
/// <returns>A <see cref="bool"/> denoting if backtracking was sucedeed</returns>
bool BacktrackRule()
{
if (_path.Count == 0)
{
return(false);
}
_visitedStates.Add(_currentState);
_currentState = _path.Pop();
J1 = (Jug)_currentState.j1.Clone();
J2 = (Jug)_currentState.j2.Clone();
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine($"({_currentState.j1.Current}, {_currentState.j2.Current}) => BT - Backtracking");
Console.ResetColor();
return(true);
}
public JugProblem(int m, int n)
{
J1 = new Jug(m);
J2 = new Jug(n);
SetSort(SortType.Asc);
_rules = new Dictionary <int, Func <Jug, Jug, bool> >
{
{ 1, (current, destination) => current.FillJug() },
{ 2, (current, destination) => destination.FillJug() },
{ 3, (current, destination) => current.EmptyJug() },
{ 4, (current, destination) => destination.EmptyJug() },
{ 5, (current, destination) => TransferWater(current, destination) },
{ 6, (current, destination) => TransferWater(destination, current) },
};
_currentState = new JugState(0, J1, J2);
}
