public static Dictionary <Direction, long> GetWeights(GameBoard gameBoard, Direction[] directions = null)
{
_gameBoard = gameBoard;
_size = gameBoard.Size;
_staticWeights = StaticWeightsHandler.GetStaticWeights(gameBoard);
_enemyParts = EnemySnakesHandler.GetEnemyPlayersInfo(gameBoard);
_lengthsFromNearEnemySnake = LengthFromEnemySnakesHandler.GetLengthsFromNearEnemySnake(gameBoard);
Dictionary <Direction, long> result = new Dictionary <Direction, long>();
Direction[] dirs = directions ?? GameSettings.Directions;
foreach (var dir in dirs)
{
long maxWeight = -1;
DistanceFromMyTail = GetDistanceFromMyTail();
SnakeParameters snakeParameters = new SnakeParameters(MySnakeParameters.Length, MySnakeParameters.StonesCount, MySnakeParameters.EvilsDuration);
result.Add(dir, -1);
CalcMaxWeight(snakeParameters, MySnakeParameters.Head, MySnakeParameters.Head.Shift(dir), ref maxWeight);
result[dir] = maxWeight;
}
return(result);
}
// Суперкритична скорость, мб придумаю что-нибудь с оптимизацией
private static void CalcMaxWeight(SnakeParameters snakeParameters,
BoardPoint prevPoint, BoardPoint point, ref long maxWeight,
int attackedSnakesIdMask = 0, int deltaLen = 0, long currentWeight = 0, int deep = 1)
{
var element = _gameBoard.GetElementAt(point);
snakeParameters.EvilsDuration = Math.Max(0, snakeParameters.EvilsDuration - 1);
if (element == BoardElement.FuryPill && (!GameSettings.CheckLengthsFromNearEnemySnakes || _lengthsFromNearEnemySnake[point.X, point.Y] > deep))
{
snakeParameters.EvilsDuration += GameSettings.EvilPillTimeDuration;
currentWeight += Math.Max(GameSettings.MultyWeight / 5, (_staticWeights[point.X, point.Y]
- GameSettings.EvilWeightReducter
* Math.Max(0, snakeParameters.EvilsDuration - GameSettings.EvilTimeDurationForReductEvilWeight))) / (deep + GameSettings.DeepReducterCoeff);
}
if (element == BoardElement.Apple && (!GameSettings.CheckLengthsFromNearEnemySnakes || _lengthsFromNearEnemySnake[point.X, point.Y] > deep))
{
snakeParameters.Length += GameSettings.AppleLengthBooster;
currentWeight += _staticWeights[point.X, point.Y] / (deep + GameSettings.DeepReducterCoeff);
deltaLen++;
}
if (element == BoardElement.Stone && (!GameSettings.CheckLengthsFromNearEnemySnakes || _lengthsFromNearEnemySnake[point.X, point.Y] > deep))
{
if (snakeParameters.EvilsDuration == 0)
{
snakeParameters.Length = Math.Max(snakeParameters.Length - GameSettings.StoneLengthReducter, 0);
}
currentWeight += _staticWeights[point.X, point.Y] / (deep + GameSettings.DeepReducterCoeff);
snakeParameters.StonesCount++;
}
if (element == BoardElement.Gold && (!GameSettings.CheckLengthsFromNearEnemySnakes || _lengthsFromNearEnemySnake[point.X, point.Y] > deep))
{
currentWeight += _staticWeights[point.X, point.Y] / (deep + GameSettings.DeepReducterCoeff);
}
if ((element.IsEnemyBody() || element.IsEnemyActiveHead()) &&
_enemyParts[point.X, point.Y] != null &&
(attackedSnakesIdMask & _enemyParts[point.X, point.Y].Value.Id) == 0)
{
attackedSnakesIdMask |= _enemyParts[point.X, point.Y].Value.Id;
var coeff = _enemyParts[point.X, point.Y].Value.DistanceFromTali - deep;
if (snakeParameters.EvilsDuration > 0)
{
currentWeight += coeff * GameSettings.EnemyPartOfBodyWeight / (deep + GameSettings.DeepReducterCoeff);
}
}
if (deep >= GameSettings.DeepLimit)
{
maxWeight = Math.Max(maxWeight, currentWeight + 1);
return;
}
var tempDistance = DistanceFromMyTail[point.X, point.Y];
DistanceFromMyTail[point.X, point.Y] = DistanceFromMyTail[prevPoint.X, prevPoint.Y] + 1;
foreach (var dir in GameSettings.Directions)
{
var nextPoint = point.Shift(dir);
var nextElement = _gameBoard.GetElementAt(nextPoint);
if (nextElement.IsBarrier() ||
nextPoint == prevPoint ||
DistanceFromMyTail[nextPoint.X, nextPoint.Y] - deep + deltaLen > 0)
{
continue;
}
if (snakeParameters.EvilsDuration <= 1)
{
if (nextElement == BoardElement.Apple ||
nextElement == BoardElement.FuryPill ||
nextElement == BoardElement.Gold ||
nextElement == BoardElement.None ||
(nextElement.IsEnemySnakePart() && (_enemyParts[nextPoint.X, nextPoint.Y] == null || _enemyParts[nextPoint.X, nextPoint.Y].Value.DistanceFromTali - deep <= 0)))
{
CalcMaxWeight(snakeParameters, point, nextPoint, ref maxWeight, attackedSnakesIdMask, deltaLen, currentWeight, deep + 1);
}
}
else
{
CalcMaxWeight(snakeParameters, point, nextPoint, ref maxWeight, attackedSnakesIdMask, deltaLen, currentWeight, deep + 1);
}
}
DistanceFromMyTail[point.X, point.Y] = tempDistance;
}