// takes a list of tiles and reveals them and expands any zeros
private List <ActionResult> Reveal(List <MinesweeperTile> firstTiles)
{
List <ActionResult> actionResults = new List <ActionResult>();
var soFar = 0;
foreach (MinesweeperTile firstTile in firstTiles)
{
firstTile.SetCovered(false);
}
int safety = 1000000;
while (soFar < firstTiles.Count)
{
MinesweeperTile tile = firstTiles[soFar];
actionResults.Add(new ActionResult(tile.GetX(), tile.GetY(), ResultType.Cleared, tile.GetValue()));
this.tilesLeft--;
// if the value is zero then for each adjacent tile not yet revealed add it to the list
if (tile.GetValue() == 0)
{
foreach (int adjIndex in GetAdjacentIndex(tile.GetIndex()))
{
MinesweeperTile adjTile = this.tiles[adjIndex];
if (adjTile.IsCovered() && !adjTile.IsFlagged()) // if not covered and not a flag
{
adjTile.SetCovered(false); // it will be uncovered in a bit
firstTiles.Add(adjTile);
}
}
}
soFar++;
if (safety-- < 0)
{
Write("MinesweeperGame: Reveal Safety limit reached !!");
break;
}
}
// if there are no tiles left to find then set the remaining tiles to flagged and we've won
if (this.tilesLeft == 0)
{
for (var i = 0; i < this.tiles.Length; i++)
{
MinesweeperTile tile = this.tiles[i];
if (tile.IsMine() && !tile.IsFlagged())
{
minesLeft--;
tile.ToggleFlagged();
actionResults.Add(new ActionResult(tile.GetX(), tile.GetY(), ResultType.Flagged)); // auto set remaining flags
}
}
this.gameStatus = GameStatus.Won;
}
return(actionResults);
}
