public void MakeDecision()
{
List <Piece> movablePieces = new List <Piece>();
List <Piece> piecesInCamp = new List <Piece>();
List <Piece> aiPieces = new List <Piece>();
List <Piece> allPieces = board.GetPieces();
foreach (Piece piece in allPieces)
{
if (!piece.IsPlayer)
{
aiPieces.Add(piece);
if (!board.IsInPlayerCamp(piece.cellRef))
{
movablePieces.Add(piece);
}
else
{
piecesInCamp.Add(piece);
}
}
}
Piece targetPiece = null;
Cell destination = null;
float targetDistance = int.MaxValue;
// Ищем среди фишек не в лагере игрока
for (int i = 0; i < movablePieces.Count; i++)
{
Cell originCell = movablePieces[i].cellRef;
float originDistance = Math.Abs(originCell.X - board.Cols) + Math.Abs(originCell.Y - board.Rows);
List <Cell> cells = strategy.GetAvailableCells(movablePieces[i].cellRef);
for (int j = 0; j < cells.Count; j++)
{
// попали в лагерь игрока. Ход удачный
if (board.IsInPlayerCamp(cells[j]))
{
targetPiece = movablePieces[i];
destination = cells[j];
targetDistance = 0f;
break;
}
// Пытаемся приблизиться
float distance = Math.Abs(cells[j].X - board.Cols) + Math.Abs(cells[j].Y - board.Rows);
if (distance > originDistance)
{
continue;
}
if (distance < targetDistance)
{
targetDistance = distance;
targetPiece = movablePieces[i];
destination = cells[j];
}
}
// Можем попасть в лагерь. Прекращаем поиск
if (targetDistance == 0)
{
break;
}
}
// Не нашли фишку мне лагеря игрока, ходим фишкой которая уже в лагере
if (targetPiece == lastPiece || targetDistance > int.MaxValue / 2)
{
List <Cell> cells = null;
for (int i = 0; i < piecesInCamp.Count; i++)
{
Cell originCell = piecesInCamp[i].cellRef;
float originDistance = Math.Abs(originCell.X - board.Cols) + Math.Abs(originCell.Y - board.Rows);
cells = strategy.GetAvailableCells(piecesInCamp[i].cellRef);
for (int j = 0; j < cells.Count; j++)
{
// Пытаемся приблизиться
float distance = Math.Abs(cells[j].X - board.Cols) + Math.Abs(cells[j].Y - board.Rows);
if (distance > originDistance)
{
continue;
}
if (distance < targetDistance)
{
targetDistance = distance;
targetPiece = piecesInCamp[i];
destination = cells[j];
}
}
}
// Делаем рандомный ход
if (targetDistance > int.MaxValue / 2)
{
do
{
targetPiece = aiPieces[random.Next() % aiPieces.Count];
cells = strategy.GetAvailableCells(targetPiece.cellRef);
}while (cells.Count == 0);
destination = cells[random.Next() % cells.Count];
}
}
lastPiece = targetPiece;
List <Cell> path = strategy.ComputePath(targetPiece.cellRef, destination);
OnDecisionMade?.Invoke(targetPiece, path);
}
/// <summary>
/// Перемещаем фигуру игрока
/// </summary>
private IEnumerator MovePiece(Piece piece, Cell origin)
{
activePiece = piece;
foreach (var cell in cellFrames)
{
cell.Select(cell.Data == origin);
}
List <Cell> availableCells = strategy.GetAvailableCells(origin);
if (availableCells.Count == 0)
{
foreach (var cell in cellFrames)
{
cell.Select(false);
}
destination = null;
activePiece = null;
yield break;
}
foreach (Cell cell in availableCells)
{
cell.Highlight(true);
}
// Ждем указания конечной точки
while (destination == null)
{
yield return(null);
}
foreach (Cell cell in availableCells)
{
cell.Highlight(false);
}
foreach (var cell in cellFrames)
{
cell.Select(false);
}
if (!availableCells.Contains(destination))
{
destination = null;
activePiece = null;
yield break;
}
else
{
List <Cell> path = strategy.ComputePath(origin, destination);
SmoothMoveStrategy moveStrategy = new SmoothMoveStrategy(piece, board, path);
foreach (Vector2 pos in moveStrategy.Move())
{
Vector2 realPos = ConvertToBoard(pos.x, pos.y);
piece.SetPosition(realPos.x, realPos.y);
if (moveStrategy.IsCompleted)
{
bool isGameFinished = board.CompleteStep(strategy);
UpdateTurn();
destination = null;
activePiece = null;
if (!isGameFinished && !board.IsPlayerTurn)
{
ai.MakeDecision();
}
yield break;
}
yield return(moveStrategy.Delay());
}
}
}