private void ReleaseCurrentTetramino()
{
HashSet <int> linesAffected = GetLinesOccupiedByTetramino(currentTetramino);
currentTetramino = null;
OnTetraminoReleased?.Invoke(linesAffected);
}
public void Rotate(RotationDirectionEnum rotation)
{
if (currentTetramino == null)
{
return;
}
var newTetramino = currentTetramino.Tetramino.GetTetraminoRotated(rotation);
var newTetraminoInfo = new TetraminoGridData(newTetramino, Vector2Int.zero);
var wallKicks = WallKicksData.Get(currentTetramino.Tetramino.Type, currentTetramino.Tetramino.CurrentRotationState, rotation);
int wallKickIndex = 0;
bool valid = false;
do
{
newTetraminoInfo.Position = currentTetramino.Position + wallKicks[wallKickIndex];
valid = ValidateTetramino(newTetraminoInfo, MinoInValidPosition);
wallKickIndex++;
}while (!valid && wallKickIndex < wallKicks.Count);
if (valid)
{
ApplyNewTetramino(newTetraminoInfo);
}
}
private HashSet <int> GetLinesOccupiedByTetramino(TetraminoGridData tetramino)
{
var result = new HashSet <int>();
foreach (var minoPosition in tetramino.GetMinosGridPositions())
{
result.Add(minoPosition.y);
}
return(result);
}
private bool ValidateTetramino(TetraminoGridData tetraminoGridInfo, Func <Vector2Int, bool> correctMinoPredicate)
{
foreach (var minoPosition in tetraminoGridInfo.GetMinosGridPositions())
{
if (!correctMinoPredicate(minoPosition))
{
return(false);
}
}
return(true);
}
private void PutTetraminoInGrid(TetraminoGridData tetraminoGridInfo)
{
if (tetraminoGridInfo == null)
{
throw new ArgumentNullException("tetraminoGridInfo", "Can't spawn \"null\" tetramino");
}
foreach (var minoPosition in tetraminoGridInfo.GetMinosGridPositions())
{
var newMino = grid.CreateMino(minoPosition, tetraminoGridInfo.Tetramino.Color);
tetraminoGridInfo.Minos.Add(newMino);
}
}
public void Shift(Vector2Int shift)
{
if (currentTetramino == null)
{
return;
}
Vector2Int newTetraminoPosition = currentTetramino.Position + shift;
var newTetramino = new TetraminoGridData(currentTetramino.Tetramino, newTetraminoPosition);
if (ValidateTetramino(newTetramino, MinoInValidPosition))
{
ApplyNewTetramino(newTetramino);
}
}
private void ApplyNewTetramino(TetraminoGridData newTetramino)
{
if (newTetramino == null)
{
throw new ArgumentNullException("newTetramino", "New tetramino is null");
}
if (newTetramino.Equals(currentTetramino))
{
return;
}
RemoveTetraminoFromGrid(currentTetramino);
PutTetraminoInGrid(newTetramino);
currentTetramino = newTetramino;
}
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();
}
}
private void RemoveTetraminoFromGrid(TetraminoGridData tetraminoGridData)
{
if (tetraminoGridData == null)
{
return;
}
foreach (var minoPosition in tetraminoGridData.GetMinosGridPositions())
{
tetraminoGridData.Minos.Remove(grid.GetCell(minoPosition));
grid.DeleteMino(minoPosition);
}
if (tetraminoGridData.Minos.Count > 0)
{
throw new InvalidOperationException();
}
}
public void ApplyGravity()
{
if (currentTetramino == null)
{
return;
}
var newTetraminoPosition = currentTetramino.Position + new Vector2Int(0, -1);
var newTetramino = new TetraminoGridData(currentTetramino.Tetramino, newTetraminoPosition);
if (ValidateTetramino(newTetramino, MinoInValidPosition))
{
ApplyNewTetramino(newTetramino);
}
else
{
ReleaseCurrentTetramino();
}
}