/// <summary>
/// Plays k simulated games using the given Simulation Strategy.
/// </summary>
/// <param name="state">The game tree root</param>
/// <returns>
/// 1 case the AI wins, -1 case it loses and 0 if the simulation dos not reach
/// a leaf node that finish the game.
/// </returns>
private int RunSimulation(Node state)
{
MCTSGame = new Game(CurGame);
int result = 0;
int playouts = 0;
Random rnd = new Random();
List <ACommand> simulatedCmds;
List <ACommand> validCmds;
while (playouts < MAX_SIMULATION_DEPTH)
{
validCmds = MCTSGame.GetValidCommands();
// If the current player has no pawns left
if (validCmds.Count == 0)
{
MCTSGame.SetNextPlayer();
validCmds = MCTSGame.GetValidCommands();
}
Simulation.SetUp(validCmds);
simulatedCmds = Simulation.Execute();
int index = rnd.Next(simulatedCmds.Count);
Player playerCp = MCTSGame.GetCurPlayer().Copy(MCTSGame.GetBoards());
Node nextState = new Node(simulatedCmds[index].Value(), MCTSGame.GetBoards(), simulatedCmds[index]);
Expansion.Expand(state, nextState);
MCTSGame.ChangeState(nextState, true);
nextState.Cmd.SetCurPlayer(playerCp);
state = nextState;
playouts++;
if (MCTSGame.IsOver())
{
break;
}
}
return(result);
}
/// <summary>
/// Simulate the circuit
/// </summary>
/// <param name="sim">The simulation that needs to be executed</param>
public void Simulate(ISimulation sim)
{
// Setup the circuit
Setup();
Simulation = sim;
if (Objects.Count <= 0)
{
throw new CircuitException("Circuit contains no objects");
}
if (Nodes.Count <= 1)
{
throw new CircuitException("Circuit contains no nodes");
}
// Do temperature-dependent calculations
foreach (var c in Objects)
{
c.Temperature(this);
}
// Execute the simulation
sim.Execute(this);
}