private void RemoveMarkedGems()
{
// Iterate through the board
for (var x = 0; x < Constants.KBoardWidth; x++)
{
for (var y = 0; y < Constants.KBoardHeight; y++)
{
var i = x + y * Constants.KBoardWidth;
if (_board[i] < -1)
{
// Increase the count for negative crystal types
_board[i]++;
if (_board[i] == -1)
{
_numGemsInColumn[x]--;
_boardChangedSinceEvaluation = true;
// Transform any gem above this to a falling gem
for (var yAbove = y + 1; yAbove < Constants.KBoardHeight; yAbove++)
{
var idxAbove = x + yAbove * Constants.KBoardWidth;
if (_board[idxAbove] < -1)
{
_numGemsInColumn[x]--;
_board[idxAbove] = -1;
}
if (_board[idxAbove] == -1)
{
continue;
}
// The gem is not connected, make it into a falling gem
var gemType = _board[idxAbove];
var gemSprite = _boardSprites[idxAbove];
var gem = new FallingGem()
{
gemType = gemType, sprite = gemSprite, yPos = yAbove, ySpeed = 0
};
_fallingGems[x].Add(gem);
// Remove from board
_board[idxAbove] = -1;
_boardSprites[idxAbove] = null;
_numGemsInColumn[x]--;
}
}
}
}
}
}
private void GameLoop()
{
if (!_isGameOver)
{
RemoveMarkedGems();
int x;
FallingGem gem;
// Add falling gems
for (x = 0; x < Constants.KBoardWidth; x++)
{
if (_numGemsInColumn[x] + _fallingGems[x].Count < Constants.KBoardHeight &&
_timeSinceAddInColumn[x] >= Constants.KTimeBetweenGemAdds)
{
// A gem should be added to this column!
var gemType = CCRandom.GetRandomInt(0, 4);
var gemSprite = new CCSprite("crystalscrystals/" + gemType + ".png");
gemSprite.Position = new CCPoint(_fieldPositionZero.X + x * Constants.KGemSize, _fieldPositionZero.Y + Constants.KBoardHeight * Constants.KGemSize);
gemSprite.AnchorPoint = CCPoint.Zero;
gem = new FallingGem()
{
gemType = gemType, sprite = gemSprite, yPos = Constants.KBoardHeight, ySpeed = 0
};
_fallingGems[x].Add(gem);
_gameBoardLayer.AddChild(gemSprite);
_timeSinceAddInColumn[x] = 0;
}
_timeSinceAddInColumn[x]++;
}
#region Move falling gems
var gemLanded = false;
for (x = 0; x < Constants.KBoardWidth; x++)
{
var column = _fallingGems[x];
var numFallingGems = _fallingGems[x].Count;
for (var i = numFallingGems - 1; i >= 0; i--)
{
gem = column[i];
gem.ySpeed += 0.06f;
gem.ySpeed *= 0.99f;
gem.yPos -= gem.ySpeed;
if (gem.yPos <= _numGemsInColumn[x])
{
// The gem hit the ground or a fixed gem
if (!gemLanded)
{
CCSimpleAudioEngine.SharedEngine.PlayEffect("Sounds/tap-" + CCRandom.Next(0, 4) + ".wav");
gemLanded = true;
}
column.RemoveAt(i);
// Insert into board
var y = _numGemsInColumn[x];
if (_board[x + y * Constants.KBoardWidth] != -1)
{
Debug.WriteLine("Warning! Overwriting board idx: " + x + y * Constants.KBoardWidth + " type: " + _board[x + y * Constants.KBoardWidth]);
}
_board[x + y * Constants.KBoardWidth] = gem.gemType;
_boardSprites[x + y * Constants.KBoardWidth] = gem.sprite;
// Update fixed position
gem.sprite.Position = new CCPoint(_fieldPositionZero.X + x * Constants.KGemSize, _fieldPositionZero.Y + y * Constants.KGemSize);
_numGemsInColumn[x]++;
_boardChangedSinceEvaluation = true;
}
else
{
// Update the falling gems position
gem.sprite.Position = new CCPoint(_fieldPositionZero.X + x * Constants.KGemSize, _fieldPositionZero.Y + gem.yPos * Constants.KGemSize);
}
}
}
#endregion
// Check if there are possible moves and no gems falling
var isFallingGems = false;
for (x = 0; x < Constants.KBoardWidth; x++)
{
if (_numGemsInColumn[x] != Constants.KBoardHeight)
{
isFallingGems = true;
break;
}
}
if (!isFallingGems)
{
var possibleMove = FindMove();
if (possibleMove == -1)
{
// Create a possible move
CreateRandomMove();
}
}
// Update timer
var currentTime = DateTime.Now;
var elapsedTime = (currentTime - _startTime).TotalMilliseconds / Constants.KTotalGameTime;
var timeLeft = (1 - elapsedTime) * 100;
if (timeLeft < 0)
{
timeLeft = 0;
}
if (timeLeft > 99.9)
{
timeLeft = 99.9;
}
_timer.Percentage = (float)timeLeft;
// Update consecutive moves / powerplay
if ((currentTime - _lastMoveTime).TotalMilliseconds > Constants.KMaxTimeBetweenConsecutiveMoves)
{
_numConsecutiveGems = 0;
}
UpdatePowerPlay();
// Update sparkles
UpdateSparkles();
// Check if timer sound should be played
if (timeLeft < 6.6 && !_endTimerStarted)
{
CCSimpleAudioEngine.SharedEngine.PlayEffect("Sounds/timer.wav");
_endTimerStarted = true;
}
// Check for game over
if (timeLeft < 0.000001f)
{
CreateGameOver();
RunOutroAnimations();
_isGameOver = true;
CCSimpleAudioEngine.SharedEngine.PlayEffect("Sounds/endgame.wav");
MainSceneLayer.LastScore = _score;
}
else if ((currentTime - _lastMoveTime).TotalMilliseconds > Constants.KDelayBeforeHint && !_isDisplayingHint)
{
DisplayHint();
}
}
else
{
UpdateGameOver();
}
}