/// <summary>
/// Inserts the Tetromino to the field, and indicates success if it could or couldn't
/// </summary>
/// <param name="tetromino">The tetromino to insert</param>
/// <param name="point">The point (in blocks) on the playfield to insert the tetromino at</param>
/// <returns>True if the tetromino can be inserted, false otherwise</returns>
public bool InsertTetrominoAt(Tetromino tetromino, Point point)
{
if (IsTetrominoInsertableAt(tetromino, point))
{
SetMinos(tetromino, point);
return(true);
}
return(false);
}
/// <summary>
/// A draw method what draws a specific tetromino as if it were in the grid. This is done to reuse code for drawing the individual
/// Tetromino blocks. This is for a tetromino that is not yet inserted.
/// </summary>
/// <param name="batch">The sprite batch instance to draw with</param>
/// <param name="position">The position (in blocks) of the point on the field to do its initial draw</param>
/// <param name="tetromino">The tetromino to mock draw in the field</param>
/// <param name="isGhost">Boolean indicating whether or not to draw the tetromino as a ghost</param>
public void DrawTetromino(SpriteBatch batch, Point position, Tetromino tetromino, bool isGhost)
{
float colorTransparency = isGhost ? GhostTetrominoAlphaFactor : 1.0f;
for (int i = 0; i < 4; i++)
{
Point mino = tetromino[i];
Point translatedMino = new Point(position.X + mino.X, position.Y + mino.Y);
this.DrawMino(batch.GraphicsDevice.Viewport, batch, translatedMino, colorTransparency, tetromino.TetrominoType);
}
}
/// <summary>
/// Sets the individual minos of a tetromino to the field. At this point, the Tetromino object is no longer needed.
/// </summary>
/// <param name="tetromino">The tetromino being inserted into the field</param>
/// <param name="insertPosition">The position for the tetromino to be inserted</param>
private void SetMinos(Tetromino tetromino, Point insertPosition)
{
for (int i = 0; i < 4; i++)
{
Point minoPosition = tetromino[i];
Point translatedMino = new Point(insertPosition.X + minoPosition.X, insertPosition.Y + minoPosition.Y);
fieldLines[translatedMino.Y][translatedMino.X] = tetromino.TetrominoType;
surfaceHeights[translatedMino.X] = Math.Max(height - translatedMino.Y, surfaceHeights[translatedMino.X]);
}
}
/// <summary>
/// Checks to see if a tetromino can be inserted to the field.
/// </summary>
/// <param name="tetromino">The tetromino to check its insertion worthiness</param>
/// <param name="insertPosition">The position (in blocks) on the field to check the Tetrominos insertion worthiness</param>
/// <returns>True if the tetromino can be inserted, false otherwise</returns>
public bool IsTetrominoInsertableAt(Tetromino tetromino, Point insertPosition)
{
bool insertable = true;
for (int i = 0; i < 4; i++)
{
Point minoPosition = tetromino[i];
Point translatedMino = new Point(insertPosition.X + minoPosition.X, insertPosition.Y + minoPosition.Y);
insertable &= (IsInBounds(translatedMino) && fieldLines[translatedMino.Y][translatedMino.X] == -1);
}
return(insertable);
}
/// <summary>
/// A draw method what draws a specific tetromino as if it were in the grid. This is done to reuse code for drawing the individual
/// Tetromino blocks. This is for a tetromino that is not yet inserted.
/// </summary>
/// <param name="batch">The sprite batch instance to draw with</param>
/// <param name="position">The position (in blocks) of the point on the field to do its initial draw</param>
/// <param name="tetromino">The tetromino to mock draw in the field</param>
public void DrawTetromino(SpriteBatch batch, Point position, Tetromino tetromino)
{
this.DrawTetromino(batch, position, tetromino, false);
}
/// <summary>
/// Checks to see if a tetromino can be inserted to the field.
/// </summary>
/// <param name="tetromino">The tetromino to check its insertion worthiness</param>
/// <param name="x">The position, in blocks, on the horizontal axis within the play area</param>
/// <param name="y">The position, in blocks, on the vertical axis within the play area</param>
/// <returns></returns>
public bool IsTetrominoInsertableAt(Tetromino tetromino, int x, int y)
{
return(IsTetrominoInsertableAt(tetromino, new Point(x, y)));
}