public bool CanMoveLeft()
{
//get the min col of the tetromino
int minCol = CoveredCells.Min(_ => _.Column);
//If any of the covered spaces are currently in the left border, the piece cannot move left.
if (minCol == 0)
{
return(false);
}
//get all the leftest tetromino's cells
var leftestCells = CoveredCells.Where(_ => _.Column == minCol);
//For each of the covered spaces, get the space immediately below
foreach (var leftestCell in leftestCells)
{
if (_GameBoard.GetRow(leftestCell.Row).HasCellTaken(leftestCell.Column - 1))
{
return(false);
}
}
return(true);
}
public bool CanMoveRight()
{
//get the max col of the tetromino
int maxCol = CoveredCells.Max(_ => _.Column);
Console.WriteLine("CanMoveRight - maxCol=" + maxCol);
//If any of the covered spaces are currently in the right border, the piece cannot move right.
if (maxCol == _GameBoard.Cols - 1)
{
return(false);
}
//get all the righest tetromino's cells
var righestCells = CoveredCells.Where(_ => _.Column == maxCol);
//For each of the covered spaces, get the space immediately below
foreach (var rightestCell in righestCells)
{
if (_GameBoard.GetRow(rightestCell.Row).HasCellTaken(rightestCell.Column + 1))
{
return(false);
}
}
return(true);
}
/// <summary>
/// Check whether the tetromino can move down by 1 cell or not
/// </summary>
/// <returns>true if it can move, false otherwise</returns>
public bool CanMoveDown()
{
//get the min row of the tetromino
int minRow = CoveredCells.Min(_ => _.Row);
//If any of the covered spaces are currently in the lowest row, the piece cannot move down.
Console.WriteLine("CanMoveDown - minRow=" + minRow);
if (minRow == 0)
{
return(false);
}
//get all the lowest tetromino's cells
var lowestCells = CoveredCells.Where(_ => _.Row == minRow);
//For each of the covered spaces, get the space immediately below
foreach (var lowestCell in lowestCells)
{
if (_GameBoard.GetRow(lowestCell.Row - 1).HasCellTaken(lowestCell.Column))
{
return(false);
}
}
return(true);
}