public void HoldPiece()
{
if (_canHold)
{
_activePiece.Despawn();
if (_heldPiece == null)
{
_heldPiece = _activePiece;
SpawnNextPiece();
}
else
{
Tetrimino tempPiece = _heldPiece;
_heldPiece = _activePiece;
_activePiece = tempPiece;
_activePiece.Spawn();
_activeOutline = GeneratePiece(_activePiece.GetBlockValue());
}
_holdSound.Play();
}
_canHold = false;
}
public void LegalMoveLeftRight(int moveVal)
{
// Copy Active Piece And Simulate Move
Tetrimino copy = GeneratePiece(_activePiece.GetBlockValue());
_activePiece.MakeCopy(copy);
copy.MoveLeftRight(moveVal);
// If In Bounds, Perform Actual Move
if (copy.IsInBounds(_tower))
{
_activePiece.MoveLeftRight(moveVal);
}
}
public void DrawPreviewImage(GameData data, Sprite pieceImg, Tetrimino piece)
{
if (piece != null)
{
int textureOffset = 0;
switch (piece.GetBlockValue())
{
case BlockValue.IShape:
textureOffset = 0;
break;
case BlockValue.LShape:
textureOffset = 1;
break;
case BlockValue.JShape:
textureOffset = 2;
break;
case BlockValue.SShape:
textureOffset = 3;
break;
case BlockValue.ZShape:
textureOffset = 4;
break;
case BlockValue.TShape:
textureOffset = 5;
break;
case BlockValue.OShape:
textureOffset = 6;
break;
}
pieceImg.TextureRect = new IntRect(textureOffset * Constants.PreviewImageSize, 0, Constants.PreviewImageSize, Constants.PreviewImageSize);
data.Window.Draw(pieceImg);
}
}
public bool CheckForMoveCollision(Tetrimino piece, int moveVal)
{
// Copy Active Piece And Simulate Move
Tetrimino copy = GeneratePiece(piece.GetBlockValue());
piece.MakeCopy(copy);
copy.MoveUpDown(moveVal);
// Check If Block Collides With Pile
if (_tower.CheckPieceOverlap(copy))
{
return(true);
}
// Check If Block Collides With Bottom
if (!copy.IsInBounds(_tower))
{
return(true);
}
return(false);
}
public void SpawnNextPiece()
{
if (_randomPieceIndex > 6)
{
_randomPieceIndex = 0;
ShuffleRandomPieceBag();
}
if (_nextPiece == null)
{
_nextPiece = GeneratePiece(_randomPieceBag[_randomPieceIndex]);
_randomPieceIndex++;
}
_activePiece = _nextPiece;
_activePiece.Spawn();
_nextPiece = GeneratePiece(_randomPieceBag[_randomPieceIndex]);
_randomPieceIndex++;
// Create Piece For Outline
_activeOutline = GeneratePiece(_activePiece.GetBlockValue());
}
public void TryRotate(Tetrimino piece, bool clockwise)
{
// Copy Active Piece And Simulate Rotation
Tetrimino copy = GeneratePiece(piece.GetBlockValue());
piece.MakeCopy(copy);
copy.Rotate(clockwise);
// If Everything Looks Good, Rotate Active Piece
if (copy.IsInBounds(_tower))
{
piece.Rotate(clockwise);
}
// If It Doesn't, Try To Apply An Offset To The Rotation
else
{
int rotationOffsetValue = -1;
while (!copy.IsInBounds(_tower))
{
rotationOffsetValue++;
switch (rotationOffsetValue)
{
case 0:
// 1 Space Left
copy.MoveLeftRight(-1);
break;
case 1:
// 2 Spaces Left
copy.MoveLeftRight(-1);
break;
case 2:
// 1 Space Right
copy.MoveLeftRight(3);
break;
case 3:
// 2 Spaces Right
copy.MoveLeftRight(1);
break;
case 4:
// 1 Space Down
copy.MoveLeftRight(-2);
copy.MoveUpDown(1);
break;
case 5:
// 2 Spaces Down
copy.MoveUpDown(1);
break;
default:
return;
}
}
// Rotate And Apply Offset
piece.Rotate(clockwise);
switch (rotationOffsetValue)
{
case 0:
piece.MoveLeftRight(-1);
break;
case 1:
piece.MoveLeftRight(-2);
break;
case 2:
piece.MoveLeftRight(1);
break;
case 3:
piece.MoveLeftRight(2);
break;
case 4:
piece.MoveUpDown(1);
break;
case 5:
piece.MoveUpDown(2);
break;
}
}
_rotateSound.Play();
}