// Actual switching function.
IEnumerator SwitchTilesRoutine(Tile clickedTile, Tile targetTile)
{
Drop clickedDrop = m_allDrops[clickedTile.xIndex, clickedTile.yIndex];
Drop targetDrop = m_allDrops[targetTile.xIndex, targetTile.yIndex];
if (targetDrop != null && clickedDrop != null)
{
clickedDrop.Move(targetTile.xIndex, targetTile.yIndex, swapTime); // Moves the clickedTile to position of taget tile
targetDrop.Move(clickedTile.xIndex, clickedTile.yIndex, swapTime); // Moves the targerTile to position of clicked tile
yield return(new WaitForSeconds(swapTime)); // Waits until Drops switch movement ends.
List <Drop> clickeddropMatches = FindMatchesAt(clickedTile.xIndex, clickedTile.yIndex); // Check for matches
List <Drop> targetdropMatches = FindMatchesAt(targetTile.xIndex, targetTile.yIndex); // Check for matches
if (targetdropMatches.Count == 0 && clickeddropMatches.Count == 0) // Swich back if there is no match.
{
clickedDrop.Move(clickedTile.xIndex, clickedTile.yIndex, swapTime);
targetDrop.Move(targetTile.xIndex, targetTile.yIndex, swapTime);
}
else
{
yield return(new WaitForSeconds(swapTime));
ClearBoard(clickeddropMatches.Union(targetdropMatches).ToList());
}
}
}