//shuffle jewels when no avalible move using fisher yates shuffler
private void ShuffleJewels()
{
//go through the board and get all the jewels
for (int i = 0; i < boardTiles.Count; i++)
{
boardJewels.Add(boardTiles[i].piece);
}
//shuffle the jewels using fisher yates
System.Random random = new System.Random();
for (int j = 0; j < boardJewels.Count; j++)
{
int r = j + (int)(random.NextDouble() * (boardJewels.Count - j));
JewelPiece randJewel = boardJewels[r];
boardJewels[r] = boardJewels[j];
boardJewels[j] = randJewel;
}
//redistribute all the jewels
for (int k = 0; k < boardTiles.Count; k++)
{
boardTiles[k].piece = boardJewels[k];
boardJewels[k].transform.position = boardTiles[k].transform.position;
}
}
private void CheckLeft(TileBehavior tileToCheck, JewelPiece match, List <TileBehavior> markedList)
{
if (tileToCheck.piece)
{
if (tileToCheck.piece.jewel == match.jewel)
{
markedList.Add(tileToCheck);
if (tileToCheck.neighbours.xNegTile)
{
CheckLeft(tileToCheck.neighbours.xNegTile, match, markedList);
}
}
}
}
//exchange jewels
public IEnumerator ExchangeJewels(TileBehavior first, TileBehavior second)
{
//board is doing things
doingThings = true;
//do the swap
JewelPiece tempHold = second.piece;
second.piece = first.piece;
first.piece = tempHold;
//do the tween
first.piece.gameObject.transform.DOMove(first.transform.position, travelTime);
second.piece.gameObject.transform.DOMove(second.transform.position, travelTime);
//wait for tween to finish
yield return(new WaitForSeconds(travelTime));
//check for completed move
checkedTiles.Clear();
CheckBoardCompletedMove();
//if was complete clear tiles
if (checkedTiles.Count > 0)
{
ClearJewels();
}
//else was not swap back
else
{
//do the swap
tempHold = second.piece;
second.piece = first.piece;
first.piece = tempHold;
//do the tween
first.piece.gameObject.transform.DOMove(first.transform.position, travelTime);
second.piece.gameObject.transform.DOMove(second.transform.position, travelTime);
//wait for tween to finish
yield return(new WaitForSeconds(travelTime));
//board not doing things
doingThings = false;
}
}
