// Clones BoardState and removes graphics
public MoveSuggestor CloneBoard()
{
Board createdBoard = Instantiate(board);
createdBoard.RemoveGraphics();
MoveSuggestor moveSuggestor = createdBoard.game.currentPlayer.GetComponent <MoveSuggestor>();
return(moveSuggestor);
}
public void TryNextMove()
{
Action action = actionsToTry[0];
actionsToTry.RemoveAt(0);
Board createdBoard = Instantiate(board);
int actionScore = createdBoard.game.currentPlayer.GetScoreIncreaseForRegularPlayer(action);
actionPathLookup[maxID] = new ActionPath(action, actionScore, GetPlayerID(), depth, board.game.round);
// Branching
MoveSuggestor branch = GetMoveSuggestorFor(createdBoard);
int alphaDown = bestActionPath.CalculateAlpha(createdBoard.game.currentPlayer.ID);
branch.StartProcessing(this, maxDepth, depth, ID: maxID, alpha: alphaDown);
maxID++;
startedSubtasks++;
}
// result: Best Action-Score pair on the called Board
public void AICallback(ActionPath result, MoveSuggestor ms, int tested, int all)
{
ScoredAction branchBestSoFar = actionPathLookup[ms.ID].actions[0];
ActionPath actionPathToTest = result.AppendAtFront(branchBestSoFar);
if (pruningOn && pruneThisRound && !branchBestSoFar.Invalid)
{
if (actionPathToTest.GetValueFor(GetPlayerID()) >= alpha)
{
actionsToTry.Clear();
}
}
bestActionPath = bestActionPath.GetIfBetter(actionPathToTest, GetPlayerID(), this);
startedSubtasks--;
// Info
finished++;
this.tested += tested;
this.all += all;
}
public ScoredAction GetIfBetter(ScoredAction scoredAction, MoveSuggestor invoker)
{
if (Invalid)
{
return(scoredAction);
}
if (scoredAction.Invalid)
{
return(this);
}
if (Score > scoredAction.Score)
{
return(this);
}
else
{
// If the Actions are identical
if (Score == scoredAction.Score)
{
ScoredAction randomChoice = Random.Range(0, 2) == 0 ? this : scoredAction;
// Priorities, Rules
if (Action.IsPass())
{
return(randomChoice);
}
if (Action.Move.GetMoveType(invoker.board) == MoveType.Capture)
{
return(this); // Capture if possible
}
return(randomChoice);
}
return(scoredAction);
}
}
public override void AICallback(ActionPath result, MoveSuggestor ms, int tested, int all)
{
base.AICallback(result, ms, tested, all);
MakeAction(result.actions[0].Action);
}
public bool IsDifferentPlayer(MoveSuggestor ms)
{
return(GetPlayerID() != ms.GetPlayerID());
}