public void CheckBlock()
{
if (FallingBlock != null)
{
dynamic overlapBlock = false;
for (var row = 0; row <= 3; row++)
{
for (var column = 0; column <= 3; column++)
{
if (FallingBlock.FilledCell(column, row))
{
var pt = BlockToBoard(new CellPoint(row, column));
if (Cells[pt.ToString()].Fixed)
{
overlapBlock = true;
break;
}
}
}
if (overlapBlock)
{
break;
}
}
if (overlapBlock)
{
GameOver?.Invoke(this, new EventArgs());
}
else
{
dynamic fixBlock = false;
for (var column = 0; column <= 3; column++)
{
for (var row = 3; row >= 0; row += -1)
{
if (FallingBlock.FilledCell(column, row))
{
var pt = BlockToBoard(new CellPoint(row, column));
if (pt.Row.Equals(Rows - 1) ||
Cells[new CellPoint(pt.Row + 1, pt.Column).ToString()].Fixed)
{
fixBlock = true;
}
break;
}
}
if (fixBlock)
{
break;
}
}
if (fixBlock)
{
for (var row = 0; row <= 3; row++)
{
for (var column = 0; column <= 3; column++)
{
if (FallingBlock.FilledCell(column, row))
{
var pt = BlockToBoard(new CellPoint(row, column));
Cells[pt.ToString()].Fixed = true;
Cells[pt.ToString()].Color = FallingBlock.Color;
}
}
}
FallingBlock = null;
CheckFullRows();
}
}
}
}
