public bool IsCellInsideGameField(GameFieldCell cell)
{
var fieldSize = Settings.GameFieldSize;
return(cell.X >= 0 && cell.X < fieldSize &&
cell.Y >= 0 && cell.Y < fieldSize &&
cell.Z >= 0 && cell.Z < fieldSize);
}
public override void Move()
{
if (_die)
{
return;
}
var newStartCell = _decisionMove(_cells[0]);
_cells.Insert(0, newStartCell);
_gameManager.AssignGameEntityToGameFieldCell(this, newStartCell);
_prevLastCell = _cells[_cells.Count - 1];
_cells.RemoveAt(_cells.Count - 1);
_gameManager.UnassignGameEntityToGameFieldCell(this, _prevLastCell);
}
public override void Spawn(IGameManager gameManager)
{
base.Spawn(gameManager);
var snakeLength = _gameManager.Settings.SnakeStartLength;
while (true)
{
var startCell = _gameManager.GetRandomEmptyCell();
var fit = true;
for (var dX = 1; dX < snakeLength; dX++)
{
if (startCell.X + dX >= _gameManager.Settings.GameFieldSize ||
_gameManager.GetGameFieldCellEntities(startCell.X + dX, startCell.Y, startCell.Z).Count != 0)
{
fit = false;
break;
}
}
if (fit)
{
for (var dX = 0; dX < snakeLength; dX++)
{
var cell = new GameFieldCell
{
X = startCell.X + dX,
Y = startCell.Y,
Z = startCell.Z
};
_gameManager.AssignGameEntityToGameFieldCell(this, cell);
var snakePart = Instantiate(_gameManager.Settings.SnakePartPrefab,
_gameManager.GameCellToWorldCoords(cell),
Quaternion.identity,
transform);
_snakeParts.Add(snakePart.transform);
_cells.Add(cell);
}
break;
}
}
}
public HashSet <IGameEntity> GetGameFieldCellEntities(GameFieldCell cell) => _gameField[cell.X, cell.Y, cell.Z];
public void UnassignGameEntityToGameFieldCell(IGameEntity gameEntity, GameFieldCell cell)
{
_gameField[cell.X, cell.Y, cell.Z].Remove(gameEntity);
}
public void AssignGameEntityToGameFieldCell(IGameEntity gameEntity, GameFieldCell cell)
{
_gameField[cell.X, cell.Y, cell.Z].Add(gameEntity);
}
public Vector3 GameCellToWorldCoords(GameFieldCell cell) => GameCellToWorldCoords(cell.X, cell.Y, cell.Z);