private Vector2Int GetTetraminoStartPosition(Tetramino newTetramino)
{
// Tetramino spawns at top center of grid, in two hidden spawn rows, at center,
// shifted to left if size.x of tetramino's bounding box is uneven
int startPositionX = grid.Size.x / 2 - (newTetramino.Size.x / 2 + newTetramino.Size.x % 2);
// Tetraminos processing starts from top left corner of their bounding box
Vector2Int startPosition = new Vector2Int(startPositionX, grid.Size.y - 1);
return(startPosition);
}
public List <Vector2Int> GetMinosGridPositions()
{
var result = new List <Vector2Int>();
foreach (var relativeMinoCoordinate in Tetramino.GetMinosCoordinates())
{
int gridX = Position.x + Mathf.RoundToInt(relativeMinoCoordinate.x);
int gridY = Position.y - Mathf.RoundToInt(relativeMinoCoordinate.y);
result.Add(new Vector2Int(gridX, gridY));
}
return(result);
}
public void Spawn(Tetramino newTetramino)
{
if (currentTetramino != null)
{
throw new InvalidOperationException("Attempt to spawn new tetramino while previous one still in active state.");
}
Vector2Int startPosition = GetTetraminoStartPosition(newTetramino);
var newTetraminoInfo = new TetraminoGridData(newTetramino, startPosition);
if (ValidateTetramino(newTetraminoInfo, MinoInValidPosition))
{
ApplyNewTetramino(newTetraminoInfo);
}
else
{
OnSpawnFailed?.Invoke();
}
}
public TetraminoGridData(Tetramino tetramino, Vector2Int position)
{
Tetramino = tetramino;
Position = position;
Minos = new List <Mino>();
}
