public override int ChooseIndexOfTileToDiscard()
{
UpdateSeenTiles();
var indexOfTileToDiscard = Hand.UncalledTiles.Count - 1;
var currentWaitingDistance = WaitingDistanceFinder.GetWaitingDistance(Hand.UncalledTiles);
var bestEfficientDrawCount = 0;
for (int i = 0; i < Hand.UncalledTiles.Count; i++)
{
var remainingTiles = new List <Tile>(Hand.UncalledTiles);
remainingTiles.RemoveAt(i);
if (WaitingDistanceFinder.GetWaitingDistance(remainingTiles) > currentWaitingDistance)
{
continue;
}
var newEfficientDrawCount = EfficientDrawsFinder.GetEfficientDrawCountWithSeenTiles(remainingTiles,
SeenTiles);
if (newEfficientDrawCount > bestEfficientDrawCount)
{
bestEfficientDrawCount = newEfficientDrawCount;
indexOfTileToDiscard = i;
}
}
return(indexOfTileToDiscard);
}
public TileGrouping ChooseGroupToMakeWithDiscardedTile(Tile discardedTile, bool canBeSequence)
{
UpdateSeenTiles();
var potentialHandTiles = new List <Tile>(Hand.UncalledTiles)
{
discardedTile
};
var groupsInvolvingDiscardedTile = GetAllGroupsThatCanBeMadeWithDiscardedTile(discardedTile, canBeSequence);
var minimumWaitingDistance = WaitingDistanceFinder.GetWaitingDistance(Hand.UncalledTiles);
var maximumTileEfficiency = EfficientDrawsFinder.GetEfficientDrawCountWithSeenTiles(Hand.UncalledTiles,
SeenTiles);
TileGrouping idealGroup = null;
foreach (var group in groupsInvolvingDiscardedTile)
{
var remainingTiles = new List <Tile>(potentialHandTiles);
foreach (var tile in group)
{
remainingTiles.Remove(tile);
}
var newWaitingDistance = WaitingDistanceFinder.GetWaitingDistance(remainingTiles);
var newTileEfficiency = EfficientDrawsFinder.GetEfficientDrawCountWithSeenTiles(remainingTiles,
SeenTiles);
if (newWaitingDistance < minimumWaitingDistance ||
(newWaitingDistance == minimumWaitingDistance && newTileEfficiency > maximumTileEfficiency))
{
minimumWaitingDistance = newWaitingDistance;
maximumTileEfficiency = newTileEfficiency;
idealGroup = group;
}
}
return(idealGroup);
}
public override bool IsClaimingDiscardedTileToCompleteGroup(Tile discardedTile, bool canBeSequence)
{
UpdateSeenTiles();
var potentialHandTiles = new List <Tile>(Hand.UncalledTiles)
{
discardedTile
};
var groupsInvolvingDiscardedTile = GetAllGroupsThatCanBeMadeWithDiscardedTile(discardedTile, canBeSequence);
var currentWaitingDistance = WaitingDistanceFinder.GetWaitingDistance(Hand.UncalledTiles);
var currentTileEfficiency = EfficientDrawsFinder.GetEfficientDrawCountWithSeenTiles(Hand.UncalledTiles,
SeenTiles);
foreach (var group in groupsInvolvingDiscardedTile)
{
var remainingTiles = new List <Tile>(potentialHandTiles);
foreach (var tile in group)
{
remainingTiles.Remove(tile);
}
var newWaitingDistance = WaitingDistanceFinder.GetWaitingDistance(remainingTiles);
if (newWaitingDistance < currentWaitingDistance ||
(newWaitingDistance == currentWaitingDistance &&
EfficientDrawsFinder.GetEfficientDrawCountWithSeenTiles(remainingTiles, SeenTiles)
> currentTileEfficiency))
{
return(true);
}
}
return(false);
}