private void PrepareInput()
{
BoardInput.Current.OnSwipe += (pos, dir) => {
Cell fromCell;
Cell toCell;
fromCell = GetCell(pos);
if (fromCell == null)
{
return;
}
if (dir == Vector2.left)
{
toCell = fromCell.Left;
}
else if (dir == Vector2.right)
{
toCell = fromCell.Right;
}
else if (dir == Vector2.down)
{
toCell = fromCell.Down;
}
else if (dir == Vector2.up)
{
toCell = fromCell.Up;
}
else
{
throw new Exception("Bad snap direction vector");
}
if (toCell == null)
{
return;
}
Move move = new Move(fromCell, toCell);
if (move.CanApply())
{
move.Apply();
Combination combination;
bool isValid = false;
if (Combination.Detect(out combination, move.To))
{
combination.Remove();
isValid = true;
}
if (Combination.Detect(out combination, move.From))
{
combination.Remove();
isValid = true;
}
if (!isValid)
{
move.Revert();
}
}
};
}
void Update()
{
if (RecentlyChangedCells.Count != RecentlyChangedCellsCount)
{
RecentlyChangedCellsCount = RecentlyChangedCells.Count;
}
else
{
var combination = new Combination();
foreach (var cell in RecentlyChangedCells)
{
if (Combination.Detect(out combination, cell))
{
combination.Remove();
}
}
RecentlyChangedCells = new HashSet <Cell>();
RecentlyChangedCellsCount = 0;
}
}