private void HandleMouseInput()
{
if (Input.GetMouseButtonDown(0))
{
Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
RaycastHit rayHit;
if (Physics.Raycast(ray, out rayHit))
{
if (rayHit.collider.gameObject.CompareTag(tileTag))
{
//if no tile selected yet
if (!firstTile)
{
firstTile = rayHit.collider.gameObject.GetComponent <TileBehavior>();
}
//otherwise first tile selected
else
{
//check if this tile is same as first tile
if (rayHit.collider.gameObject.GetComponent <TileBehavior>() == firstTile)
{
//deselect
firstTile = null;
}
//not same tile
else
{
//check if neighbour of first tile
if (firstTile.CheckIsNeighbour(rayHit.collider.gameObject.GetComponent <TileBehavior>()))
{
secondTile = rayHit.collider.gameObject.GetComponent <TileBehavior>();
//do swap
StartCoroutine(board.ExchangeJewels(firstTile, secondTile));
firstTile = null;
secondTile = null;
}
else
{
//deselect first tile
firstTile = null;
}
}
}
}
}
}
}