//--------------------------------------------------------------
// CONSTRUCTORS
//--------------------------------------------------------------
public Grid()
{
_map = new Block[Constants.GridSizeX, Constants.GridSizeY];
_fallingPiece = new Piece (this, Constants.IdGeneratorPlayer1);
_shadowPiece = new Piece (_fallingPiece);
_nextPiece = new Piece(0, 0, Constants.IdGeneratorPlayer1);
_nextPiece.MoveToZero();
_isNextPieceModified = false;
UpdateShadowPiece();
}