public void SwapPiece(GemPiece piece)
{
if (selectedPiece == null)
{ //First piece selected
selectedPiece = piece;
selectedPiece.selection.enabled = true;
}
else //Second piece selected
{
Point selectedLoc = selectedPiece.location;
Point pieceLoc = piece.location;
//Same piece => deselect
if (selectedLoc == piece.location)
{
selectedPiece.selection.enabled = false;
selectedPiece = null;
}
//Different piece => check up range
else if (selectedLoc + Point.up == pieceLoc ||
selectedLoc + Point.down == pieceLoc ||
selectedLoc + Point.left == pieceLoc ||
selectedLoc + Point.right == pieceLoc)
{
//Increment moves and deselect
moves++;
selectedPiece.selection.enabled = false;
//swap gems in board
SwapGems(selectedLoc, pieceLoc);
//play "animation" then check board
StartCoroutine(WaitForSwap(selectedPiece, piece));
selectedPiece = null;
}
}
}
IEnumerator WaitForSwap(GemPiece a, GemPiece b)
{
float swapSpeed = 5f;
//play swaps
a.StartCoroutine(a.FallToPos(swapSpeed));
//wait the swap
yield return(b.StartCoroutine(b.FallToPos(swapSpeed)));
//Clean up matches
CleanBoard();
}
