private List <ActionResult> FlagTile(GameAction action)
{
List <ActionResult> actionResults = new List <ActionResult>();
int index = GetIndex(action.x, action.y);
MinesweeperTile tile = this.tiles[index];
// if the tile is covered then toggle the flag and return it's new state
if (tile.IsCovered())
{
tile.ToggleFlagged();
if (tile.IsFlagged())
{
actionResults.Add(new ActionResult(action.x, action.y, ResultType.Flagged));
minesLeft--;
}
else
{
if (tile.GetExploded())
{
actionResults.Add(new ActionResult(action.x, action.y, ResultType.Exploded));
}
else
{
actionResults.Add(new ActionResult(action.x, action.y, ResultType.Hidden));
}
minesLeft++;
}
}
return(actionResults);
}
// clicks the assigned tile and returns an object containing a list of tiles cleared
private List <ActionResult> ClearTile(GameAction action)
{
List <ActionResult> actionResults = new List <ActionResult>();
int index = GetIndex(action.x, action.y);
// if this is the first click then create the tiles and place the mines
if (this.gameStatus == GameStatus.NotStarted)
{
PlaceMines(index);
}
MinesweeperTile tile = this.tiles[index];
// are we clicking on a flag
if (tile.IsFlagged())
{
Write("Unable to Clear: Clicked on a Flag");
}
else if (tile.GetExploded())
{
Write("Unable to Clear: Clicked on an exploded Mine");
}
else if (tile.IsMine())
{
//Write("Gameover: Clicked on a mine");
deaths++;
if (hardcore)
{
this.gameStatus = GameStatus.Lost;
}
tile.SetExploded(true);
actionResults.Add(new ActionResult(action.x, action.y, ResultType.Exploded));
}
else
{
if (tile.IsCovered()) // make sure the tile is clickable
{
List <MinesweeperTile> tilesToReveal = new List <MinesweeperTile>();
tilesToReveal.Add(tile);
actionResults.AddRange(Reveal(tilesToReveal));
}
}
return(actionResults);
}
// 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);
}
// chord the assigned tile and returns an object containing a list of tiles cleared
private List <ActionResult> ChordTile(GameAction action)
{
List <ActionResult> actionResults = new List <ActionResult>();
int index = GetIndex(action.x, action.y);
// if this is the first click then create the tiles and place the mines
if (this.gameStatus == GameStatus.NotStarted)
{
PlaceMines(index);
}
MinesweeperTile tile = this.tiles[index];
int flagCount = 0;
int hiddenCount = 0;
foreach (int adjIndex in GetAdjacentIndex(index))
{
if (tiles[adjIndex].IsFlagged())
{
flagCount++;
}
else if (tiles[adjIndex].IsCovered())
{
hiddenCount++;
}
}
// If the hidden count is zero then there is nothing to do
if (hiddenCount == 0)
{
Write("Unable to Chord: Nothing to clear");
return(actionResults);
}
// nothing to do if the tile is not yet surrounded by the correct number of flags
if (tile.GetValue() != flagCount)
{
Write("Unable to Chord: value=" + tile.GetValue() + " flags=" + flagCount);
return(actionResults);
}
// see if there are any unflagged bombs in the area to be chorded - this loses the game
var bombCount = 0;
foreach (int adjIndex in GetAdjacentIndex(index))
{
MinesweeperTile adjTile = tiles[adjIndex];
if (adjTile.IsMine() && !adjTile.IsFlagged())
{
adjTile.SetExploded(true);
actionResults.Add(new ActionResult(adjTile.GetX(), adjTile.GetY(), ResultType.Exploded)); // mark the tile as exploded
bombCount++;
}
}
// if we have triggered a bomb then return
if (bombCount != 0)
{
deaths = deaths + bombCount;
if (hardcore)
{
this.gameStatus = GameStatus.Lost;
}
return(actionResults);
}
// seems okay, so do the chording
List <MinesweeperTile> tilesToReveal = new List <MinesweeperTile>();
// determine which tiles need revealing
foreach (int adjIndex in this.GetAdjacentIndex(index))
{
MinesweeperTile adjTile = tiles[adjIndex];
if (adjTile.IsCovered() && !adjTile.IsFlagged()) // covered and not flagged
{
tilesToReveal.Add(adjTile);
}
}
actionResults.AddRange(Reveal(tilesToReveal));
return(actionResults);
}
