void OnMouseDown()
{
//if there is no sprite in the gem or when the board is shifting do nothing
if (render.sprite == null || BoardManager.board.IsShifting)
{
return;
}
if (isSelected) //if you select an already selected gem, deselect
{
Deselect();
}
else
{
//else if you don't have a previously selected gem and selected a new gem, the gem gets selected
if (previousSelected == null)
{
Select();
}
else
{
//else if you have a previously selected gem and it is a neighbour of the currently selected gem, they swap.
if (GetAllAdjacentTiles().Contains(previousSelected.gameObject))
{
//they swap their sprite not the gameObject but looks like they are actually swapping!
SwapSprite(previousSelected.render);
previousSelected.ClearAllMatches();
previousSelected.Deselect();
ClearAllMatches();
}
else
{
//else if you have a previously selected gem but select non neighbour gem,
//previous gem gets deselected and the current one gets selected
previousSelected.GetComponent <Gem>().Deselect();
Select();
}
}
}
}
