public FifteenModel()
{
ClickCommand = new DelegateCommand<Cell>(Clicked);
Cells = new Cell[AreaSize * AreaSize - 1];
NullCell = new Cell(0);
CreateArea();
SetPositions();
SetRandomArea();
}
private void CreateArea()
{
for (int i = 0; i < 15; i++)
{
Cells[i] = new Cell(i + 1);
}
}
private void Clicked(Cell cell)
{
Clicked(cell, true);
}
private void Clicked(Cell cell, bool userCall)
{
if (!CellCanMove(cell))
return;
var nullCellRow = NullCell.Row;
var nullCellColumn = NullCell.Column;
NullCell.Row = cell.Row;
NullCell.Column = cell.Column;
cell.Row = nullCellRow;
cell.Column = nullCellColumn;
if (userCall && Finished())
GameFinished();
}
private bool CellCanMove(Cell cell)
{
return Math.Abs(cell.Column - NullCell.Column) + Math.Abs(cell.Row - NullCell.Row) == 1;
}
